[INFO] fetching crate stakker_mio 0.2.1...
[INFO] checking stakker_mio-0.2.1 against try#b0d0ea232bdae12fa8da8491a91ae1db029990ef for pr-84037
[INFO] extracting crate stakker_mio 0.2.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate stakker_mio 0.2.1 on toolchain b0d0ea232bdae12fa8da8491a91ae1db029990ef
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stakker_mio 0.2.1
[INFO] finished tweaking crates.io crate stakker_mio 0.2.1
[INFO] tweaked toml for crates.io crate stakker_mio 0.2.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 08f3d2303e111c305b47d8589bd40d927f2474e343f936694e5f6a1b26c6bbf3
[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" "08f3d2303e111c305b47d8589bd40d927f2474e343f936694e5f6a1b26c6bbf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08f3d2303e111c305b47d8589bd40d927f2474e343f936694e5f6a1b26c6bbf3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08f3d2303e111c305b47d8589bd40d927f2474e343f936694e5f6a1b26c6bbf3", kill_on_drop: false }`
[INFO] [stdout] 08f3d2303e111c305b47d8589bd40d927f2474e343f936694e5f6a1b26c6bbf3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+b0d0ea232bdae12fa8da8491a91ae1db029990ef" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f148589b82bc3b817fd7652ba7cc5ad587e8ac3b1d02f01ebf338ce360b5dba
[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" "7f148589b82bc3b817fd7652ba7cc5ad587e8ac3b1d02f01ebf338ce360b5dba", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]     Checking qcell v0.4.1
[INFO] [stderr]     Checking stakker v0.2.3
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking stakker_mio v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.78s
[INFO] running `Command { std: "docker" "inspect" "7f148589b82bc3b817fd7652ba7cc5ad587e8ac3b1d02f01ebf338ce360b5dba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f148589b82bc3b817fd7652ba7cc5ad587e8ac3b1d02f01ebf338ce360b5dba", kill_on_drop: false }`
[INFO] [stdout] 7f148589b82bc3b817fd7652ba7cc5ad587e8ac3b1d02f01ebf338ce360b5dba