[INFO] fetching crate helion 0.5.0...
[INFO] checking helion-0.5.0 against master#836c31742687ba4e2f857b5b698e1e9e6b67619c for pr-81789
[INFO] extracting crate helion 0.5.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate helion 0.5.0 on toolchain 836c31742687ba4e2f857b5b698e1e9e6b67619c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate helion 0.5.0
[INFO] finished tweaking crates.io crate helion 0.5.0
[INFO] tweaked toml for crates.io crate helion 0.5.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate helion 0.5.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6226ee7a703d808bf7ebf04662602180a61bfab0d1ebd45420661f1fc4681aa
[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" "a6226ee7a703d808bf7ebf04662602180a61bfab0d1ebd45420661f1fc4681aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6226ee7a703d808bf7ebf04662602180a61bfab0d1ebd45420661f1fc4681aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6226ee7a703d808bf7ebf04662602180a61bfab0d1ebd45420661f1fc4681aa", kill_on_drop: false }`
[INFO] [stdout] a6226ee7a703d808bf7ebf04662602180a61bfab0d1ebd45420661f1fc4681aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+836c31742687ba4e2f857b5b698e1e9e6b67619c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0536c3dcf45fb9291ccfe9f1b1894ee83267635507334dc3f4e4d4be50cab0d9
[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" "0536c3dcf45fb9291ccfe9f1b1894ee83267635507334dc3f4e4d4be50cab0d9", kill_on_drop: false }`
[INFO] [stderr]    Compiling error-chain v0.10.0
[INFO] [stderr]    Compiling pkg-config v0.3.9
[INFO] [stderr]     Checking libc v0.2.23
[INFO] [stderr]    Compiling toml v0.2.1
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling x11cap v0.4.1
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking serde v1.0.8
[INFO] [stderr]     Checking itoa v0.3.1
[INFO] [stderr]     Checking num-traits v0.1.39
[INFO] [stderr]     Checking dtoa v0.4.1
[INFO] [stderr]    Compiling helion v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking clock_ticks v0.1.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking ioctl-rs v0.1.5
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]     Checking serial v0.3.4
[INFO] [stderr]    Compiling x11 v2.14.0
[INFO] [stderr]    Compiling serde_derive_internals v0.15.1
[INFO] [stderr]    Compiling serde_derive v1.0.8
[INFO] [stderr]     Checking serde_json v1.0.2
[INFO] [stderr]     Checking captrs v0.3.0
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.75s
[INFO] running `Command { std: "docker" "inspect" "0536c3dcf45fb9291ccfe9f1b1894ee83267635507334dc3f4e4d4be50cab0d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0536c3dcf45fb9291ccfe9f1b1894ee83267635507334dc3f4e4d4be50cab0d9", kill_on_drop: false }`
[INFO] [stdout] 0536c3dcf45fb9291ccfe9f1b1894ee83267635507334dc3f4e4d4be50cab0d9