[INFO] fetching crate tribers 0.1.0...
[INFO] building tribers-0.1.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate tribers 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate tribers 0.1.0
[INFO] finished tweaking crates.io crate tribers 0.1.0
[INFO] tweaked toml for crates.io crate tribers 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tribers 0.1.0 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ac4cb906d8c24b1bd8f5c69c138df8c6dc5de120278791287ae94e4c65d85ea4
[INFO] running `Command { std: "docker" "start" "-a" "ac4cb906d8c24b1bd8f5c69c138df8c6dc5de120278791287ae94e4c65d85ea4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ac4cb906d8c24b1bd8f5c69c138df8c6dc5de120278791287ae94e4c65d85ea4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac4cb906d8c24b1bd8f5c69c138df8c6dc5de120278791287ae94e4c65d85ea4", kill_on_drop: false }`
[INFO] [stdout] ac4cb906d8c24b1bd8f5c69c138df8c6dc5de120278791287ae94e4c65d85ea4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f5b726f23492abd1ccbf76ebfbc1f7d3547e0238e370c7a0117feb7d0363f5c
[INFO] running `Command { std: "docker" "start" "-a" "0f5b726f23492abd1ccbf76ebfbc1f7d3547e0238e370c7a0117feb7d0363f5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling tribers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "0f5b726f23492abd1ccbf76ebfbc1f7d3547e0238e370c7a0117feb7d0363f5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f5b726f23492abd1ccbf76ebfbc1f7d3547e0238e370c7a0117feb7d0363f5c", kill_on_drop: false }`
[INFO] [stdout] 0f5b726f23492abd1ccbf76ebfbc1f7d3547e0238e370c7a0117feb7d0363f5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94278883329f0426a1e997c08816a7cd5cfaa280439b3dff3c2577cd9485d7b5
[INFO] running `Command { std: "docker" "start" "-a" "94278883329f0426a1e997c08816a7cd5cfaa280439b3dff3c2577cd9485d7b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling tribers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "94278883329f0426a1e997c08816a7cd5cfaa280439b3dff3c2577cd9485d7b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94278883329f0426a1e997c08816a7cd5cfaa280439b3dff3c2577cd9485d7b5", kill_on_drop: false }`
[INFO] [stdout] 94278883329f0426a1e997c08816a7cd5cfaa280439b3dff3c2577cd9485d7b5