[INFO] fetching crate kupyna 0.1.0...
[INFO] checking kupyna-0.1.0 against 1.95.0 for pr-155915
[INFO] extracting crate kupyna 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate kupyna 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate kupyna 0.1.0
[INFO] tweaked toml for crates.io crate kupyna 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate kupyna 0.1.0 on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate kupyna 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hex-literal v1.1.0
[INFO] [stderr]   Downloaded hybrid-array v0.4.8
[INFO] [stderr]   Downloaded blobby v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16975337a85097ca78736fb20e6167b8fc94cba410959a045e9d8675bb344ee7
[INFO] running `Command { std: "docker" "start" "-a" "16975337a85097ca78736fb20e6167b8fc94cba410959a045e9d8675bb344ee7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16975337a85097ca78736fb20e6167b8fc94cba410959a045e9d8675bb344ee7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16975337a85097ca78736fb20e6167b8fc94cba410959a045e9d8675bb344ee7", kill_on_drop: false }`
[INFO] [stdout] 16975337a85097ca78736fb20e6167b8fc94cba410959a045e9d8675bb344ee7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 490db16d8bdcc747113b6a4c7194f44e22af7e1c9ee741aa503185ab667f9f41
[INFO] running `Command { std: "docker" "start" "-a" "490db16d8bdcc747113b6a4c7194f44e22af7e1c9ee741aa503185ab667f9f41", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.19.0
[INFO] [stderr]     Checking blobby v0.4.0
[INFO] [stderr]     Checking hex-literal v1.1.0
[INFO] [stderr]     Checking hybrid-array v0.4.8
[INFO] [stderr]     Checking block-buffer v0.12.0
[INFO] [stderr]     Checking crypto-common v0.2.1
[INFO] [stderr]     Checking digest v0.11.2
[INFO] [stderr]     Checking kupyna v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> benches/mod.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kupyna` (bench "mod") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "490db16d8bdcc747113b6a4c7194f44e22af7e1c9ee741aa503185ab667f9f41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "490db16d8bdcc747113b6a4c7194f44e22af7e1c9ee741aa503185ab667f9f41", kill_on_drop: false }`
[INFO] [stdout] 490db16d8bdcc747113b6a4c7194f44e22af7e1c9ee741aa503185ab667f9f41
