[INFO] fetching crate tree-node 0.0.1...
[INFO] testing tree-node-0.0.1 against 1.91.0 for beta-1.92-2
[INFO] extracting crate tree-node 0.0.1 into /workspace/builds/worker-3-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-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tree-node 0.0.1 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a73ad87baf4c4a1c5b6de3cd696e04d72314e9fc3d55e9bc0b462e6cf8cd16bf
[INFO] running `Command { std: "docker" "start" "-a" "a73ad87baf4c4a1c5b6de3cd696e04d72314e9fc3d55e9bc0b462e6cf8cd16bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a73ad87baf4c4a1c5b6de3cd696e04d72314e9fc3d55e9bc0b462e6cf8cd16bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a73ad87baf4c4a1c5b6de3cd696e04d72314e9fc3d55e9bc0b462e6cf8cd16bf", kill_on_drop: false }`
[INFO] [stdout] a73ad87baf4c4a1c5b6de3cd696e04d72314e9fc3d55e9bc0b462e6cf8cd16bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 01bc8920761004ed62245dcad7a45cab06ac9f094416139c14a8ffcdb8f26426
[INFO] running `Command { std: "docker" "start" "-a" "01bc8920761004ed62245dcad7a45cab06ac9f094416139c14a8ffcdb8f26426", 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 0.25s
[INFO] running `Command { std: "docker" "inspect" "01bc8920761004ed62245dcad7a45cab06ac9f094416139c14a8ffcdb8f26426", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01bc8920761004ed62245dcad7a45cab06ac9f094416139c14a8ffcdb8f26426", kill_on_drop: false }`
[INFO] [stdout] 01bc8920761004ed62245dcad7a45cab06ac9f094416139c14a8ffcdb8f26426
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9df3e9536b643890d857deb9da42034f3530d7542d156625f462f6841bd4179e
[INFO] running `Command { std: "docker" "start" "-a" "9df3e9536b643890d857deb9da42034f3530d7542d156625f462f6841bd4179e", 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" "9df3e9536b643890d857deb9da42034f3530d7542d156625f462f6841bd4179e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9df3e9536b643890d857deb9da42034f3530d7542d156625f462f6841bd4179e", kill_on_drop: false }`
[INFO] [stdout] 9df3e9536b643890d857deb9da42034f3530d7542d156625f462f6841bd4179e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] eb7dfadde1fa971da842a26cedd668a06b5c169b3d0b31715fcbe94cc8de4f93
[INFO] running `Command { std: "docker" "start" "-a" "eb7dfadde1fa971da842a26cedd668a06b5c169b3d0b31715fcbe94cc8de4f93", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tree_node-58bb5def912d9e00)
[INFO] [stderr]      Running tests/mod.rs (/opt/rustwide/target/debug/deps/mod-50a5fc6493009a8b)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_tree ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests tree_node
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "eb7dfadde1fa971da842a26cedd668a06b5c169b3d0b31715fcbe94cc8de4f93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb7dfadde1fa971da842a26cedd668a06b5c169b3d0b31715fcbe94cc8de4f93", kill_on_drop: false }`
[INFO] [stdout] eb7dfadde1fa971da842a26cedd668a06b5c169b3d0b31715fcbe94cc8de4f93