[INFO] fetching crate tree-node 0.0.1...
[INFO] building tree-node-0.0.1 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate tree-node 0.0.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate tree-node 0.0.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate tree-node 0.0.1
[INFO] tweaked toml for crates.io crate tree-node 0.0.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tree-node 0.0.1 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-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] f42e786bd74f4cf81ad69377f02e20d2fb0f35061a21be775766e1c424c19a37
[INFO] running `Command { std: "docker" "start" "-a" "f42e786bd74f4cf81ad69377f02e20d2fb0f35061a21be775766e1c424c19a37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f42e786bd74f4cf81ad69377f02e20d2fb0f35061a21be775766e1c424c19a37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f42e786bd74f4cf81ad69377f02e20d2fb0f35061a21be775766e1c424c19a37", kill_on_drop: false }`
[INFO] [stdout] f42e786bd74f4cf81ad69377f02e20d2fb0f35061a21be775766e1c424c19a37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 2cfd2a1d75851c3e1083ec3f91b925943c80b19834788e1fb9f3f3fe1aae9f65
[INFO] running `Command { std: "docker" "start" "-a" "2cfd2a1d75851c3e1083ec3f91b925943c80b19834788e1fb9f3f3fe1aae9f65", kill_on_drop: false }`
[INFO] [stderr]    Compiling tree-node v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "2cfd2a1d75851c3e1083ec3f91b925943c80b19834788e1fb9f3f3fe1aae9f65", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cfd2a1d75851c3e1083ec3f91b925943c80b19834788e1fb9f3f3fe1aae9f65", kill_on_drop: false }`
[INFO] [stdout] 2cfd2a1d75851c3e1083ec3f91b925943c80b19834788e1fb9f3f3fe1aae9f65
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] c68eabffaeb39b5da56218848bd9ced2fa9619a6411acb382073dae33e111769
[INFO] running `Command { std: "docker" "start" "-a" "c68eabffaeb39b5da56218848bd9ced2fa9619a6411acb382073dae33e111769", kill_on_drop: false }`
[INFO] [stderr]    Compiling tree-node v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "c68eabffaeb39b5da56218848bd9ced2fa9619a6411acb382073dae33e111769", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c68eabffaeb39b5da56218848bd9ced2fa9619a6411acb382073dae33e111769", kill_on_drop: false }`
[INFO] [stdout] c68eabffaeb39b5da56218848bd9ced2fa9619a6411acb382073dae33e111769