[INFO] fetching crate rootfinder 0.4.1...
[INFO] building rootfinder-0.4.1 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate rootfinder 0.4.1 into /workspace/builds/worker-0-tc2/source
[INFO] removed /workspace/builds/worker-0-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate rootfinder 0.4.1
[INFO] finished tweaking crates.io crate rootfinder 0.4.1
[INFO] tweaked toml for crates.io crate rootfinder 0.4.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rootfinder 0.4.1 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 rootfinder 0.4.1 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b9b4a10b642b14bd9d0f818cebb3dc88f6e61030a4f7200d61c6217c6bd7f7b9
[INFO] running `Command { std: "docker" "start" "-a" "b9b4a10b642b14bd9d0f818cebb3dc88f6e61030a4f7200d61c6217c6bd7f7b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9b4a10b642b14bd9d0f818cebb3dc88f6e61030a4f7200d61c6217c6bd7f7b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9b4a10b642b14bd9d0f818cebb3dc88f6e61030a4f7200d61c6217c6bd7f7b9", kill_on_drop: false }`
[INFO] [stdout] b9b4a10b642b14bd9d0f818cebb3dc88f6e61030a4f7200d61c6217c6bd7f7b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 328a012190348e76a219cda6cb9ddf9bfe9b2891e4f99e8c791f38e3e9df1560
[INFO] running `Command { std: "docker" "start" "-a" "328a012190348e76a219cda6cb9ddf9bfe9b2891e4f99e8c791f38e3e9df1560", kill_on_drop: false }`
[INFO] [stderr]    Compiling rootfinder v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "328a012190348e76a219cda6cb9ddf9bfe9b2891e4f99e8c791f38e3e9df1560", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "328a012190348e76a219cda6cb9ddf9bfe9b2891e4f99e8c791f38e3e9df1560", kill_on_drop: false }`
[INFO] [stdout] 328a012190348e76a219cda6cb9ddf9bfe9b2891e4f99e8c791f38e3e9df1560
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] c4dd441bdb74c39e861645996fa5ab0f968cc2e156a8588c85c198e44fdf8a41
[INFO] running `Command { std: "docker" "start" "-a" "c4dd441bdb74c39e861645996fa5ab0f968cc2e156a8588c85c198e44fdf8a41", kill_on_drop: false }`
[INFO] [stderr]    Compiling numtest v0.3.1
[INFO] [stderr]    Compiling rootfinder v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.55s
[INFO] running `Command { std: "docker" "inspect" "c4dd441bdb74c39e861645996fa5ab0f968cc2e156a8588c85c198e44fdf8a41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4dd441bdb74c39e861645996fa5ab0f968cc2e156a8588c85c198e44fdf8a41", kill_on_drop: false }`
[INFO] [stdout] c4dd441bdb74c39e861645996fa5ab0f968cc2e156a8588c85c198e44fdf8a41