[INFO] fetching crate rust_task 0.1.3...
[INFO] building rust_task-0.1.3 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate rust_task 0.1.3 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate rust_task 0.1.3
[INFO] finished tweaking crates.io crate rust_task 0.1.3
[INFO] tweaked toml for crates.io crate rust_task 0.1.3 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust_task 0.1.3 on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rust_task 0.1.3 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 09210c5254f7e3118fbcac50b7abcd2fc077fa4b15ac968caddbe913dfd5ee4a
[INFO] running `Command { std: "docker" "start" "-a" "09210c5254f7e3118fbcac50b7abcd2fc077fa4b15ac968caddbe913dfd5ee4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "09210c5254f7e3118fbcac50b7abcd2fc077fa4b15ac968caddbe913dfd5ee4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "09210c5254f7e3118fbcac50b7abcd2fc077fa4b15ac968caddbe913dfd5ee4a", kill_on_drop: false }`
[INFO] [stdout] 09210c5254f7e3118fbcac50b7abcd2fc077fa4b15ac968caddbe913dfd5ee4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d21c65fc9ae324386816ae3d7da4efd0078b06c448cb281f2f042c764a1d17d0
[INFO] running `Command { std: "docker" "start" "-a" "d21c65fc9ae324386816ae3d7da4efd0078b06c448cb281f2f042c764a1d17d0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling numtoa v0.1.0
[INFO] [stderr]    Compiling time-core v0.1.1
[INFO] [stderr]    Compiling time v0.3.21
[INFO] [stderr]    Compiling termion v2.0.1
[INFO] [stderr]    Compiling pyu_rust_util v0.1.64
[INFO] [stderr]    Compiling rust_task v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.54s
[INFO] running `Command { std: "docker" "inspect" "d21c65fc9ae324386816ae3d7da4efd0078b06c448cb281f2f042c764a1d17d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d21c65fc9ae324386816ae3d7da4efd0078b06c448cb281f2f042c764a1d17d0", kill_on_drop: false }`
[INFO] [stdout] d21c65fc9ae324386816ae3d7da4efd0078b06c448cb281f2f042c764a1d17d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ebfb4f8aaee06bf8bfe619c657b2f2538810c67c66f2ca89291abbb61374cff
[INFO] running `Command { std: "docker" "start" "-a" "2ebfb4f8aaee06bf8bfe619c657b2f2538810c67c66f2ca89291abbb61374cff", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_task v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "2ebfb4f8aaee06bf8bfe619c657b2f2538810c67c66f2ca89291abbb61374cff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ebfb4f8aaee06bf8bfe619c657b2f2538810c67c66f2ca89291abbb61374cff", kill_on_drop: false }`
[INFO] [stdout] 2ebfb4f8aaee06bf8bfe619c657b2f2538810c67c66f2ca89291abbb61374cff