[INFO] fetching crate tracing-tree 0.1.10...
[INFO] testing tracing-tree-0.1.10 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate tracing-tree 0.1.10 into /workspace/builds/worker-75/source
[INFO] validating manifest of crates.io crate tracing-tree 0.1.10 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tracing-tree 0.1.10
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate tracing-tree 0.1.10
[INFO] tweaked toml for crates.io crate tracing-tree 0.1.10 written to /workspace/builds/worker-75/source/Cargo.toml
[INFO] crate crates.io crate tracing-tree 0.1.10 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded assert_cmd v1.0.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d2bdb3f48daa44704384546fbd8b4fd2e0231a3d8c0639484b912e1fe1d4d922
[INFO] running `Command { std: "docker" "start" "-a" "d2bdb3f48daa44704384546fbd8b4fd2e0231a3d8c0639484b912e1fe1d4d922", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2bdb3f48daa44704384546fbd8b4fd2e0231a3d8c0639484b912e1fe1d4d922", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2bdb3f48daa44704384546fbd8b4fd2e0231a3d8c0639484b912e1fe1d4d922", kill_on_drop: false }`
[INFO] [stdout] d2bdb3f48daa44704384546fbd8b4fd2e0231a3d8c0639484b912e1fe1d4d922
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 85fead896794060c2e9c371c7ae002ee3fc41029ee735081655258a202e7b106
[INFO] running `Command { std: "docker" "start" "-a" "85fead896794060c2e9c371c7ae002ee3fc41029ee735081655258a202e7b106", kill_on_drop: false }`
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling ansi_term v0.12.1
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling tracing-subscriber v0.2.20
[INFO] [stderr]    Compiling tracing-tree v0.1.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.25s
[INFO] running `Command { std: "docker" "inspect" "85fead896794060c2e9c371c7ae002ee3fc41029ee735081655258a202e7b106", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "85fead896794060c2e9c371c7ae002ee3fc41029ee735081655258a202e7b106", kill_on_drop: false }`
[INFO] [stdout] 85fead896794060c2e9c371c7ae002ee3fc41029ee735081655258a202e7b106
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa97f91170d284774c9bd969d07a833351ea8ca4369fb2fa4ac6238bdb7931fd
[INFO] running `Command { std: "docker" "start" "-a" "aa97f91170d284774c9bd969d07a833351ea8ca4369fb2fa4ac6238bdb7931fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling predicates-core v1.0.2
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling difflib v0.4.0
[INFO] [stderr]    Compiling treeline v0.1.0
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling predicates-tree v1.0.3
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling predicates v2.0.2
[INFO] [stderr]    Compiling assert_cmd v1.0.8
[INFO] [stderr]    Compiling tracing-attributes v0.1.15
[INFO] [stderr]    Compiling tracing v0.1.26
[INFO] [stderr]    Compiling tracing-tree v0.1.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 17.51s
[INFO] running `Command { std: "docker" "inspect" "aa97f91170d284774c9bd969d07a833351ea8ca4369fb2fa4ac6238bdb7931fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa97f91170d284774c9bd969d07a833351ea8ca4369fb2fa4ac6238bdb7931fd", kill_on_drop: false }`
[INFO] [stdout] aa97f91170d284774c9bd969d07a833351ea8ca4369fb2fa4ac6238bdb7931fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-75/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" "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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4d9e038c163afa50b99b4712998bddc3101b85852a2681679704db70179115f7
[INFO] running `Command { std: "docker" "start" "-a" "4d9e038c163afa50b99b4712998bddc3101b85852a2681679704db70179115f7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tracing_tree-734acad32e9458ff)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/ui.rs (/opt/rustwide/target/debug/deps/ui-963e847fa0e35ac9)
[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] [stderr]    Doc-tests tracing-tree
[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" "4d9e038c163afa50b99b4712998bddc3101b85852a2681679704db70179115f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d9e038c163afa50b99b4712998bddc3101b85852a2681679704db70179115f7", kill_on_drop: false }`
[INFO] [stdout] 4d9e038c163afa50b99b4712998bddc3101b85852a2681679704db70179115f7