[INFO] cloning repository https://github.com/matsadler/halton
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/matsadler/halton" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatsadler%2Fhalton", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatsadler%2Fhalton'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c563ebef90bb91f54d2b6a98238abe6c6dec275
[INFO] checking matsadler/halton against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatsadler%2Fhalton" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/matsadler/halton
[INFO] finished tweaking git repo https://github.com/matsadler/halton
[INFO] tweaked toml for git repo https://github.com/matsadler/halton written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/matsadler/halton 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 git repo https://github.com/matsadler/halton 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] fbcaf65295cca6e2e0227981c5853d1532cfaf2ec8db35906025e2e76a5f3393
[INFO] running `Command { std: "docker" "start" "-a" "fbcaf65295cca6e2e0227981c5853d1532cfaf2ec8db35906025e2e76a5f3393", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbcaf65295cca6e2e0227981c5853d1532cfaf2ec8db35906025e2e76a5f3393", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbcaf65295cca6e2e0227981c5853d1532cfaf2ec8db35906025e2e76a5f3393", kill_on_drop: false }`
[INFO] [stdout] fbcaf65295cca6e2e0227981c5853d1532cfaf2ec8db35906025e2e76a5f3393
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 596b05aa203b99c1aae66d1e54a6601c583f143e60d1573e40b51c22453de2c5
[INFO] running `Command { std: "docker" "start" "-a" "596b05aa203b99c1aae66d1e54a6601c583f143e60d1573e40b51c22453de2c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]     Checking halton v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> benches/bench.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 `halton` (bench "bench") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "596b05aa203b99c1aae66d1e54a6601c583f143e60d1573e40b51c22453de2c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "596b05aa203b99c1aae66d1e54a6601c583f143e60d1573e40b51c22453de2c5", kill_on_drop: false }`
[INFO] [stdout] 596b05aa203b99c1aae66d1e54a6601c583f143e60d1573e40b51c22453de2c5
