[INFO] fetching crate vulcan 0.1.0...
[INFO] building vulcan-0.1.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate vulcan 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate vulcan 0.1.0
[INFO] finished tweaking crates.io crate vulcan 0.1.0
[INFO] tweaked toml for crates.io crate vulcan 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate vulcan 0.1.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate vulcan 0.1.0 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6f5bce6256b80941e1fb1e2d41c79772d013d6b300a58413b2cf341006380e9
[INFO] running `Command { std: "docker" "start" "-a" "f6f5bce6256b80941e1fb1e2d41c79772d013d6b300a58413b2cf341006380e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6f5bce6256b80941e1fb1e2d41c79772d013d6b300a58413b2cf341006380e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6f5bce6256b80941e1fb1e2d41c79772d013d6b300a58413b2cf341006380e9", kill_on_drop: false }`
[INFO] [stdout] f6f5bce6256b80941e1fb1e2d41c79772d013d6b300a58413b2cf341006380e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c520ee22b5afb034f61eb536e4674e41c6eec0339fecb2bb0eb29a8d433d0a1
[INFO] running `Command { std: "docker" "start" "-a" "9c520ee22b5afb034f61eb536e4674e41c6eec0339fecb2bb0eb29a8d433d0a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling vulcan v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "9c520ee22b5afb034f61eb536e4674e41c6eec0339fecb2bb0eb29a8d433d0a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c520ee22b5afb034f61eb536e4674e41c6eec0339fecb2bb0eb29a8d433d0a1", kill_on_drop: false }`
[INFO] [stdout] 9c520ee22b5afb034f61eb536e4674e41c6eec0339fecb2bb0eb29a8d433d0a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b62fa63eae30178337b0d35fadfa2be2efcf0dfafce0729915658ccf41fa4e17
[INFO] running `Command { std: "docker" "start" "-a" "b62fa63eae30178337b0d35fadfa2be2efcf0dfafce0729915658ccf41fa4e17", kill_on_drop: false }`
[INFO] [stderr]    Compiling vulcan v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "b62fa63eae30178337b0d35fadfa2be2efcf0dfafce0729915658ccf41fa4e17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b62fa63eae30178337b0d35fadfa2be2efcf0dfafce0729915658ccf41fa4e17", kill_on_drop: false }`
[INFO] [stdout] b62fa63eae30178337b0d35fadfa2be2efcf0dfafce0729915658ccf41fa4e17