[INFO] fetching crate unicode-width 0.2.1...
[INFO] building unicode-width-0.2.1 against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2
[INFO] extracting crate unicode-width 0.2.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate unicode-width 0.2.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate unicode-width 0.2.1
[INFO] tweaked toml for crates.io crate unicode-width 0.2.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate unicode-width 0.2.1 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 unicode-width 0.2.1 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-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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf5d02bdb334012a9a5e62f15ce1889e126526b704e4188e07f440924ab4f016
[INFO] running `Command { std: "docker" "start" "-a" "cf5d02bdb334012a9a5e62f15ce1889e126526b704e4188e07f440924ab4f016", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf5d02bdb334012a9a5e62f15ce1889e126526b704e4188e07f440924ab4f016", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf5d02bdb334012a9a5e62f15ce1889e126526b704e4188e07f440924ab4f016", kill_on_drop: false }`
[INFO] [stdout] cf5d02bdb334012a9a5e62f15ce1889e126526b704e4188e07f440924ab4f016
[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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a949d2e30214f7c008bbb5a80750e6c659d1add5a9e8c99f21c892493236ff1
[INFO] running `Command { std: "docker" "start" "-a" "2a949d2e30214f7c008bbb5a80750e6c659d1add5a9e8c99f21c892493236ff1", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-width v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "2a949d2e30214f7c008bbb5a80750e6c659d1add5a9e8c99f21c892493236ff1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a949d2e30214f7c008bbb5a80750e6c659d1add5a9e8c99f21c892493236ff1", kill_on_drop: false }`
[INFO] [stdout] 2a949d2e30214f7c008bbb5a80750e6c659d1add5a9e8c99f21c892493236ff1
[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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2f5dea274f8f58304a917cbd2cc2352dd80fb42ed850c7ea5100406ef34631f
[INFO] running `Command { std: "docker" "start" "-a" "a2f5dea274f8f58304a917cbd2cc2352dd80fb42ed850c7ea5100406ef34631f", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-width v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.29s
[INFO] running `Command { std: "docker" "inspect" "a2f5dea274f8f58304a917cbd2cc2352dd80fb42ed850c7ea5100406ef34631f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2f5dea274f8f58304a917cbd2cc2352dd80fb42ed850c7ea5100406ef34631f", kill_on_drop: false }`
[INFO] [stdout] a2f5dea274f8f58304a917cbd2cc2352dd80fb42ed850c7ea5100406ef34631f