[INFO] cloning repository https://github.com/felix-rhebo/eui48-bench
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/felix-rhebo/eui48-bench" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffelix-rhebo%2Feui48-bench", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffelix-rhebo%2Feui48-bench'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c2afe31f91dc1d18bbadc8dada987c39ac391324
[INFO] testing felix-rhebo/eui48-bench against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffelix-rhebo%2Feui48-bench" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/felix-rhebo/eui48-bench on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/felix-rhebo/eui48-bench
[INFO] finished tweaking git repo https://github.com/felix-rhebo/eui48-bench
[INFO] tweaked toml for git repo https://github.com/felix-rhebo/eui48-bench written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/felix-rhebo/eui48-bench already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 35b77d7792e1a14e68f6c0de5bc858e661ed7597c9918929c27bf7766e5cc29f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "35b77d7792e1a14e68f6c0de5bc858e661ed7597c9918929c27bf7766e5cc29f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35b77d7792e1a14e68f6c0de5bc858e661ed7597c9918929c27bf7766e5cc29f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35b77d7792e1a14e68f6c0de5bc858e661ed7597c9918929c27bf7766e5cc29f", kill_on_drop: false }`
[INFO] [stdout] 35b77d7792e1a14e68f6c0de5bc858e661ed7597c9918929c27bf7766e5cc29f
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a13da035615ba14f89cd58c2df8c2c136f5e091d6961aeb59072f1b5ab33a4a7
[INFO] running `Command { std: "docker" "start" "-a" "a13da035615ba14f89cd58c2df8c2c136f5e091d6961aeb59072f1b5ab33a4a7", 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]    Compiling bincode v1.3.1
[INFO] [stderr]    Compiling eui48 v1.1.0 (https://github.com/felix-rhebo/eui48.git#366a5360)
[INFO] [stderr]    Compiling eui48-bench v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![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 `eui48-bench`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "a13da035615ba14f89cd58c2df8c2c136f5e091d6961aeb59072f1b5ab33a4a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a13da035615ba14f89cd58c2df8c2c136f5e091d6961aeb59072f1b5ab33a4a7", kill_on_drop: false }`
[INFO] [stdout] a13da035615ba14f89cd58c2df8c2c136f5e091d6961aeb59072f1b5ab33a4a7