[INFO] crate helion 0.5.0 is already in cache
[INFO] checking helion-0.5.0 against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] extracting crate helion 0.5.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate helion 0.5.0 on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", 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-4/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" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6b752e0c1e640cf9825c383c36da3c865ab18dae87e1ad21ec63ddd53a09946b
[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" "6b752e0c1e640cf9825c383c36da3c865ab18dae87e1ad21ec63ddd53a09946b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6b752e0c1e640cf9825c383c36da3c865ab18dae87e1ad21ec63ddd53a09946b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b752e0c1e640cf9825c383c36da3c865ab18dae87e1ad21ec63ddd53a09946b", kill_on_drop: false }`
[INFO] [stdout] 6b752e0c1e640cf9825c383c36da3c865ab18dae87e1ad21ec63ddd53a09946b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b013f352a233ed8cd94cebcc0caf7e4596d76a72fd776bc13ea2dcfa021d377
[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" "2b013f352a233ed8cd94cebcc0caf7e4596d76a72fd776bc13ea2dcfa021d377", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.23
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling x11cap v0.4.1
[INFO] [stderr]     Checking dtoa v0.4.1
[INFO] [stderr]     Checking itoa v0.3.1
[INFO] [stderr]     Checking num-traits v0.1.39
[INFO] [stderr]    Compiling helion v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde v1.0.8
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking clock_ticks v0.1.0
[INFO] [stderr]    Compiling x11 v2.14.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking ioctl-rs v0.1.5
[INFO] [stderr]     Checking termios v0.2.2
[INFO] [stderr]     Checking serial v0.3.4
[INFO] [stderr]    Compiling serde_derive_internals v0.15.1
[INFO] [stderr]     Checking captrs v0.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.8
[INFO] [stderr]     Checking serde_json v1.0.2
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.90s
[INFO] running `Command { std: "docker" "inspect" "2b013f352a233ed8cd94cebcc0caf7e4596d76a72fd776bc13ea2dcfa021d377", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b013f352a233ed8cd94cebcc0caf7e4596d76a72fd776bc13ea2dcfa021d377", kill_on_drop: false }`
[INFO] [stdout] 2b013f352a233ed8cd94cebcc0caf7e4596d76a72fd776bc13ea2dcfa021d377