[INFO] fetching crate ben 0.1.10...
[INFO] checking ben-0.1.10 against master#1557fb031b272b4c5bfcc7de5df7eddc7b36a584 for pr-73166
[INFO] extracting crate ben 0.1.10 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate ben 0.1.10 on toolchain 1557fb031b272b4c5bfcc7de5df7eddc7b36a584
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ben 0.1.10
[INFO] finished tweaking crates.io crate ben 0.1.10
[INFO] tweaked toml for crates.io crate ben 0.1.10 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate ben 0.1.10 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "metadata" "--no-deps" "--format-version=1", 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] b430fe5b9a75d4832bffbc68c45603eaecb38650e1d0559c6585f2a54209827b
[INFO] running `Command { std: "docker" "start" "-a" "b430fe5b9a75d4832bffbc68c45603eaecb38650e1d0559c6585f2a54209827b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b430fe5b9a75d4832bffbc68c45603eaecb38650e1d0559c6585f2a54209827b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b430fe5b9a75d4832bffbc68c45603eaecb38650e1d0559c6585f2a54209827b", kill_on_drop: false }`
[INFO] [stdout] b430fe5b9a75d4832bffbc68c45603eaecb38650e1d0559c6585f2a54209827b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "check" "--frozen" "--all" "--all-targets" "--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] ef7ec4daf8fff49c7666b5bdd375b6240b4af4b17df81e53b7f4deb232f6ec85
[INFO] running `Command { std: "docker" "start" "-a" "ef7ec4daf8fff49c7666b5bdd375b6240b4af4b17df81e53b7f4deb232f6ec85", kill_on_drop: false }`
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]     Checking ben v0.1.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "ef7ec4daf8fff49c7666b5bdd375b6240b4af4b17df81e53b7f4deb232f6ec85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef7ec4daf8fff49c7666b5bdd375b6240b4af4b17df81e53b7f4deb232f6ec85", kill_on_drop: false }`
[INFO] [stdout] ef7ec4daf8fff49c7666b5bdd375b6240b4af4b17df81e53b7f4deb232f6ec85