[INFO] fetching crate aes-keywrap-rs 0.2.0...
[INFO] testing aes-keywrap-rs-0.2.0 against 1.54.0 for beta-1.55-1
[INFO] extracting crate aes-keywrap-rs 0.2.0 into /workspace/builds/worker-56/source
[INFO] validating manifest of crates.io crate aes-keywrap-rs 0.2.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate aes-keywrap-rs 0.2.0
[INFO] finished tweaking crates.io crate aes-keywrap-rs 0.2.0
[INFO] tweaked toml for crates.io crate aes-keywrap-rs 0.2.0 written to /workspace/builds/worker-56/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a287d46ff6056ebdfff1cdf258a3302ee2f9e1edbd9321ae7f4ebb9e048c2c6
[INFO] running `Command { std: "docker" "start" "-a" "9a287d46ff6056ebdfff1cdf258a3302ee2f9e1edbd9321ae7f4ebb9e048c2c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a287d46ff6056ebdfff1cdf258a3302ee2f9e1edbd9321ae7f4ebb9e048c2c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a287d46ff6056ebdfff1cdf258a3302ee2f9e1edbd9321ae7f4ebb9e048c2c6", kill_on_drop: false }`
[INFO] [stdout] 9a287d46ff6056ebdfff1cdf258a3302ee2f9e1edbd9321ae7f4ebb9e048c2c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-56/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d50da6a10d7778acc938c08667ba0b9f839f26ca8d4acb57b3fc10db8dc4cd3c
[INFO] running `Command { std: "docker" "start" "-a" "d50da6a10d7778acc938c08667ba0b9f839f26ca8d4acb57b3fc10db8dc4cd3c", kill_on_drop: false }`
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling crypto2 v0.1.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/crypto2-0.1.2/src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(stdsimd, llvm_asm)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crypto2`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "d50da6a10d7778acc938c08667ba0b9f839f26ca8d4acb57b3fc10db8dc4cd3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d50da6a10d7778acc938c08667ba0b9f839f26ca8d4acb57b3fc10db8dc4cd3c", kill_on_drop: false }`
[INFO] [stdout] d50da6a10d7778acc938c08667ba0b9f839f26ca8d4acb57b3fc10db8dc4cd3c
