[INFO] fetching crate specs_transform 0.5.0...
[INFO] checking specs_transform-0.5.0 against 1.55.0 for beta-1.56-3
[INFO] extracting crate specs_transform 0.5.0 into /workspace/builds/worker-74/source
[INFO] validating manifest of crates.io crate specs_transform 0.5.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate specs_transform 0.5.0
[INFO] finished tweaking crates.io crate specs_transform 0.5.0
[INFO] tweaked toml for crates.io crate specs_transform 0.5.0 written to /workspace/builds/worker-74/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vec2 v0.2.1
[INFO] [stderr]   Downloaded vec3 v0.2.1
[INFO] [stderr]   Downloaded mat32 v0.2.1
[INFO] [stderr]   Downloaded cast_trait v0.1.2
[INFO] [stderr]   Downloaded mat4 v0.2.1
[INFO] [stderr]   Downloaded shred-derive v0.6.3
[INFO] [stderr]   Downloaded shred v0.9.4
[INFO] [stderr]   Downloaded specs v0.15.1
[INFO] [stderr]   Downloaded specs_scene_graph v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f649b503c48260bfd1e2e1158f0a525cb2e2163ddff58f44a82cb58f95c9820
[INFO] running `Command { std: "docker" "start" "-a" "1f649b503c48260bfd1e2e1158f0a525cb2e2163ddff58f44a82cb58f95c9820", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f649b503c48260bfd1e2e1158f0a525cb2e2163ddff58f44a82cb58f95c9820", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f649b503c48260bfd1e2e1158f0a525cb2e2163ddff58f44a82cb58f95c9820", kill_on_drop: false }`
[INFO] [stdout] 1f649b503c48260bfd1e2e1158f0a525cb2e2163ddff58f44a82cb58f95c9820
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44d31d4423c103ff4f4ffdc9b6663b7cd0490fe83995625f1b3eb7bc022d7e1a
[INFO] running `Command { std: "docker" "start" "-a" "44d31d4423c103ff4f4ffdc9b6663b7cd0490fe83995625f1b3eb7bc022d7e1a", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking mopa v0.2.2
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking atom v0.3.6
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking shrev v1.1.1
[INFO] [stderr]     Checking tuple_utils v0.3.0
[INFO] [stderr]     Checking cast_trait v0.1.2
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking type-name v0.1.0
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling hashbrown v0.6.3
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]     Checking memchr v2.4.1
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]    Compiling shred-derive v0.6.3
[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/type-name-0.1.0/src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(core_intrinsics)]
[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 `type-name` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "44d31d4423c103ff4f4ffdc9b6663b7cd0490fe83995625f1b3eb7bc022d7e1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44d31d4423c103ff4f4ffdc9b6663b7cd0490fe83995625f1b3eb7bc022d7e1a", kill_on_drop: false }`
[INFO] [stdout] 44d31d4423c103ff4f4ffdc9b6663b7cd0490fe83995625f1b3eb7bc022d7e1a
