[INFO] fetching crate yulid 0.1.0...
[INFO] testing yulid-0.1.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate yulid 0.1.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate yulid 0.1.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yulid 0.1.0
[INFO] finished tweaking crates.io crate yulid 0.1.0
[INFO] tweaked toml for crates.io crate yulid 0.1.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf3201433695cdddd26d8e9b94bf791efc6a9042e8c506b6a99aa197f85bc322
[INFO] running `Command { std: "docker" "start" "-a" "cf3201433695cdddd26d8e9b94bf791efc6a9042e8c506b6a99aa197f85bc322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf3201433695cdddd26d8e9b94bf791efc6a9042e8c506b6a99aa197f85bc322", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf3201433695cdddd26d8e9b94bf791efc6a9042e8c506b6a99aa197f85bc322", kill_on_drop: false }`
[INFO] [stdout] cf3201433695cdddd26d8e9b94bf791efc6a9042e8c506b6a99aa197f85bc322
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07907b7cd5792207232a978f413a6136bd64a01067ca4de9092d6a96ac290282
[INFO] running `Command { std: "docker" "start" "-a" "07907b7cd5792207232a978f413a6136bd64a01067ca4de9092d6a96ac290282", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling yulid v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.24s
[INFO] running `Command { std: "docker" "inspect" "07907b7cd5792207232a978f413a6136bd64a01067ca4de9092d6a96ac290282", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07907b7cd5792207232a978f413a6136bd64a01067ca4de9092d6a96ac290282", kill_on_drop: false }`
[INFO] [stdout] 07907b7cd5792207232a978f413a6136bd64a01067ca4de9092d6a96ac290282
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1154c3731caf97fba594a74df653a1ac4669e6fbdebf8327c350087bd27b5f3
[INFO] running `Command { std: "docker" "start" "-a" "d1154c3731caf97fba594a74df653a1ac4669e6fbdebf8327c350087bd27b5f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling serde_cbor v0.9.0
[INFO] [stderr]    Compiling yulid v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> src/lib.rs:14:27
[INFO] [stdout]    |
[INFO] [stdout] 14 | #![cfg_attr(test, feature(test))]
[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 `yulid` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "d1154c3731caf97fba594a74df653a1ac4669e6fbdebf8327c350087bd27b5f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1154c3731caf97fba594a74df653a1ac4669e6fbdebf8327c350087bd27b5f3", kill_on_drop: false }`
[INFO] [stdout] d1154c3731caf97fba594a74df653a1ac4669e6fbdebf8327c350087bd27b5f3