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# rustc version rustc 1.94.0-nightly (fecb335cb 2026-01-07)
# docs.rs version docsrs 0.1.0 (7bfb09c2 2026-01-03 )
# build log [INFO] running `Command { std: "docker" "create" "-v" "/home/cratesfyi/workspace/builds/rocket_json-0.1.4/target:/opt/rustwide/target:rw,Z" "-v" "/home/cratesfyi/workspace/builds/rocket_json-0.1.4/source:/opt/rustwide/workdir:ro,Z" "-v" "/home/cratesfyi/workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/home/cratesfyi/workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "DOCS_RS=1" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "6442450944" "--cpus" "6" "--user" "1001:1001" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+nightly" "rustdoc" "--lib" "-Zrustdoc-map" "--config" "build.rustdocflags=[\"--cfg\", \"docsrs\", \"-Z\", \"unstable-options\", \"--emit=invocation-specific\", \"--resource-suffix\", \"-20260107-1.94.0-nightly-fecb335cb\", \"--static-root-path\", \"/-/rustdoc.static/\", \"--cap-lints\", \"warn\", \"--extern-html-root-takes-precedence\"]" "--offline" "-Zunstable-options" "--config=doc.extern-map.registries.crates-io=\"https://docs.rs/{pkg_name}/{version}/x86_64-unknown-linux-gnu\"" "-Zrustdoc-scrape-examples" "-j6" "--target" "x86_64-unknown-linux-gnu", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] ab2e7564ec957d3a5732cc7d3471aa25ddd3af27d9e0625e912c1c007b4ebb7b [INFO] running `Command { std: "docker" "start" "-a" "ab2e7564ec957d3a5732cc7d3471aa25ddd3af27d9e0625e912c1c007b4ebb7b", kill_on_drop: false }` [INFO] [stderr] Compiling devise_core v0.2.1 [INFO] [stderr] Checking indexmap v1.9.3 [INFO] [stderr] Compiling rocket_http v0.4.11 [INFO] [stderr] Checking pear v0.1.5 [INFO] [stderr] Checking inotify-sys v0.1.5 [INFO] [stderr] Compiling rocket v0.4.11 [INFO] [stderr] error[E0557]: feature has been removed [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/devise_core-0.2.1/src/lib.rs:2:12 [INFO] [stderr] | [INFO] [stderr] 2 | #![feature(concat_idents)] [INFO] [stderr] | ^^^^^^^^^^^^^ feature has been removed [INFO] [stderr] | [INFO] [stderr] = note: removed in 1.90.0; see <https://github.com/rust-lang/rust/pull/142704> for more information [INFO] [stderr] = note: use the `${concat(..)}` metavariable expression instead [INFO] [stderr] [INFO] [stderr] Checking unicode-xid v0.1.0 [INFO] [stderr] error: cannot find macro `concat_idents` in this scope [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/devise_core-0.2.1/src/generator.rs:29:39 [INFO] [stderr] | [INFO] [stderr] 29 | $(self.$vec.push(Box::new(concat_idents!(default_, $get_f)));)* [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] ... [INFO] [stderr] 193 | / mappers! { [INFO] [stderr] 194 | | (map_struct, try_map_struct, struct_mapper): Struct, struct_mappers, [INFO] [stderr] 195 | | (map_enum, try_map_enum, enum_mapper): Enum, enum_mappers, [INFO] [stderr] 196 | | (map_variant, try_map_variant, variant_mapper): Variant, variant_mappers, [INFO] [stderr] 197 | | (map_fields, try_map_fields, fields_mapper): Fields, fields_mappers, [INFO] [stderr] 198 | | (map_field, try_map_field, field_mapper): Field, field_mappers [INFO] [stderr] 199 | | } [INFO] [stderr] | |_____- in this macro invocation [INFO] [stderr] | [INFO] [stderr] = note: this error originates in the macro `mappers` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stderr] [INFO] [stderr] Checking lazycell v1.3.0 [INFO] [stderr] Checking memchr v2.7.6 [INFO] [stderr] Compiling serde_json v1.0.149 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking state v0.4.2 [INFO] [stderr] Compiling glob v0.3.3 [INFO] [stderr] Checking bitflags v1.3.2 [INFO] [stderr] Checking smallvec v1.15.1 [INFO] [stderr] For more information about this error, try `rustc --explain E0557`. [INFO] [stderr] error: could not compile `devise_core` (lib) due to 2 previous errors [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error[E0520]: `to_string` specializes an item from a parent `impl`, but that item is not marked `default` [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/rocket_http-0.4.11/src/raw_str.rs:406:5 [INFO] [stderr] | [INFO] [stderr] 406 | fn to_string(&self) -> String { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: parent implementation is in crate `alloc` [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0520`. [INFO] [stderr] error: could not compile `rocket_http` (lib) due to 1 previous error [INFO] running `Command { std: "docker" "inspect" "ab2e7564ec957d3a5732cc7d3471aa25ddd3af27d9e0625e912c1c007b4ebb7b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ab2e7564ec957d3a5732cc7d3471aa25ddd3af27d9e0625e912c1c007b4ebb7b", kill_on_drop: false }` [INFO] [stdout] ab2e7564ec957d3a5732cc7d3471aa25ddd3af27d9e0625e912c1c007b4ebb7b