[INFO] crate eng-wasm 0.1.4 is already in cache
[INFO] checking eng-wasm-0.1.4 against master#4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb for pr-64672
[INFO] extracting crate eng-wasm 0.1.4 into work/builds/worker-4/source
[INFO] validating manifest of crates.io crate eng-wasm 0.1.4 on toolchain 4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate eng-wasm 0.1.4
[INFO] finished tweaking crates.io crate eng-wasm 0.1.4
[INFO] tweaked toml for crates.io crate eng-wasm 0.1.4 written to work/builds/worker-4/source/Cargo.toml
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+4ff32c07da9d97e6dc315a4a5c9ffbb797cb27bb" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 183eff3385dfd494aab121275f10d5a8eee6003d5122e6af0525435da292ede9
[INFO] running `"docker" "start" "-a" "183eff3385dfd494aab121275f10d5a8eee6003d5122e6af0525435da292ede9"`
[INFO] [stderr]     Checking rustc-hex v2.0.1
[INFO] [stderr]     Checking fixed-hash v0.3.2
[INFO] [stderr]     Checking uint v0.6.1
[INFO] [stderr]     Checking eng-pwasm-abi v0.3.2
[INFO] [stderr]     Checking eng-wasm v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `self::std::slice::SliceConcatExt`
[INFO] [stderr]   --> src/internal_std.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub use self::std::slice::SliceConcatExt;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `SliceConcatExt` in `slice`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `self::std::slice::SliceConcatExt`
[INFO] [stderr]   --> src/internal_std.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub use self::std::slice::SliceConcatExt;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `SliceConcatExt` in `slice`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `eng-wasm`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0432`.
[INFO] [stderr] error: could not compile `eng-wasm`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "183eff3385dfd494aab121275f10d5a8eee6003d5122e6af0525435da292ede9"`
[INFO] running `"docker" "rm" "-f" "183eff3385dfd494aab121275f10d5a8eee6003d5122e6af0525435da292ede9"`
[INFO] [stdout] 183eff3385dfd494aab121275f10d5a8eee6003d5122e6af0525435da292ede9