[INFO] fetching crate stakker_mio 0.2.5...
[INFO] checking stakker_mio-0.2.5 against master#a3f76a26e045a760bb1163b7eab36872985242d5 for pr-130930
[INFO] extracting crate stakker_mio 0.2.5 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate stakker_mio 0.2.5 on toolchain a3f76a26e045a760bb1163b7eab36872985242d5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stakker_mio 0.2.5
[INFO] finished tweaking crates.io crate stakker_mio 0.2.5
[INFO] tweaked toml for crates.io crate stakker_mio 0.2.5 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate stakker_mio 0.2.5 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" "+a3f76a26e045a760bb1163b7eab36872985242d5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded qcell v0.5.3
[INFO] [stderr]   Downloaded proc-macro2 v1.0.52
[INFO] [stderr]   Downloaded anymap v0.12.1
[INFO] [stderr]   Downloaded stakker v0.2.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3c73a9a4488668126ede3d64c4080ae210999b989369312d45064999fe6de056
[INFO] running `Command { std: "docker" "start" "-a" "3c73a9a4488668126ede3d64c4080ae210999b989369312d45064999fe6de056", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3c73a9a4488668126ede3d64c4080ae210999b989369312d45064999fe6de056", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c73a9a4488668126ede3d64c4080ae210999b989369312d45064999fe6de056", kill_on_drop: false }`
[INFO] [stdout] 3c73a9a4488668126ede3d64c4080ae210999b989369312d45064999fe6de056
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+a3f76a26e045a760bb1163b7eab36872985242d5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f6c05e51bbb903170393307e26058206894fc4ee74dd0a1cba96a7cea15e04a
[INFO] running `Command { std: "docker" "start" "-a" "9f6c05e51bbb903170393307e26058206894fc4ee74dd0a1cba96a7cea15e04a", kill_on_drop: false }`
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]     Checking anymap v0.12.1
[INFO] [stderr]     Checking qcell v0.5.3
[INFO] [stderr]     Checking stakker v0.2.5
[INFO] [stderr]     Checking mio v0.8.6
[INFO] [stderr]     Checking stakker_mio v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.09s
[INFO] running `Command { std: "docker" "inspect" "9f6c05e51bbb903170393307e26058206894fc4ee74dd0a1cba96a7cea15e04a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f6c05e51bbb903170393307e26058206894fc4ee74dd0a1cba96a7cea15e04a", kill_on_drop: false }`
[INFO] [stdout] 9f6c05e51bbb903170393307e26058206894fc4ee74dd0a1cba96a7cea15e04a