[INFO] fetching crate tracing-tree 0.2.0...
[INFO] testing tracing-tree-0.2.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate tracing-tree 0.2.0 into /workspace/builds/worker-16/source
[INFO] validating manifest of crates.io crate tracing-tree 0.2.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tracing-tree 0.2.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate tracing-tree 0.2.0
[INFO] tweaked toml for crates.io crate tracing-tree 0.2.0 written to /workspace/builds/worker-16/source/Cargo.toml
[INFO] crate crates.io crate tracing-tree 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0fd5c84860e0dd5247d010d3b2d0befc5a593823497d49a791401f7c5ac17fb9
[INFO] running `Command { std: "docker" "start" "-a" "0fd5c84860e0dd5247d010d3b2d0befc5a593823497d49a791401f7c5ac17fb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0fd5c84860e0dd5247d010d3b2d0befc5a593823497d49a791401f7c5ac17fb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fd5c84860e0dd5247d010d3b2d0befc5a593823497d49a791401f7c5ac17fb9", kill_on_drop: false }`
[INFO] [stdout] 0fd5c84860e0dd5247d010d3b2d0befc5a593823497d49a791401f7c5ac17fb9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a9e49afeada5cf75d95b31d71b8e25a13136dd4323cbd5e944f8d63f6c6bc56f
[INFO] running `Command { std: "docker" "start" "-a" "a9e49afeada5cf75d95b31d71b8e25a13136dd4323cbd5e944f8d63f6c6bc56f", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling libc v0.2.105
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling tracing-core v0.1.21
[INFO] [stderr]    Compiling thread_local v1.1.3
[INFO] [stderr]    Compiling tracing-subscriber v0.3.3
[INFO] [stderr]    Compiling tracing-log v0.1.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling tracing-tree v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.68s
[INFO] running `Command { std: "docker" "inspect" "a9e49afeada5cf75d95b31d71b8e25a13136dd4323cbd5e944f8d63f6c6bc56f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9e49afeada5cf75d95b31d71b8e25a13136dd4323cbd5e944f8d63f6c6bc56f", kill_on_drop: false }`
[INFO] [stdout] a9e49afeada5cf75d95b31d71b8e25a13136dd4323cbd5e944f8d63f6c6bc56f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 950664990bd6ca9c57a1477c0563500d15a13b73d317460701a7d8e404ab0c3c
[INFO] running `Command { std: "docker" "start" "-a" "950664990bd6ca9c57a1477c0563500d15a13b73d317460701a7d8e404ab0c3c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling predicates-core v1.0.2
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling difflib v0.4.0
[INFO] [stderr]    Compiling termtree v0.2.3
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling predicates-tree v1.0.4
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling predicates v2.0.3
[INFO] [stderr]    Compiling assert_cmd v1.0.8
[INFO] [stderr]    Compiling tracing-attributes v0.1.18
[INFO] [stderr]    Compiling tracing v0.1.29
[INFO] [stderr]    Compiling tracing-tree v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 17.89s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/tracing_tree-054bc4b819c16a7b)
[INFO] [stderr]   Executable tests/ui.rs (/opt/rustwide/target/debug/deps/ui-f24b9582efa43593)
[INFO] running `Command { std: "docker" "inspect" "950664990bd6ca9c57a1477c0563500d15a13b73d317460701a7d8e404ab0c3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "950664990bd6ca9c57a1477c0563500d15a13b73d317460701a7d8e404ab0c3c", kill_on_drop: false }`
[INFO] [stdout] 950664990bd6ca9c57a1477c0563500d15a13b73d317460701a7d8e404ab0c3c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-16/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ef9e7afa7680e9f0fddac0e7793d20184034f8b60a4ddd17ff7606ce9f07fdf7
[INFO] running `Command { std: "docker" "start" "-a" "ef9e7afa7680e9f0fddac0e7793d20184034f8b60a4ddd17ff7606ce9f07fdf7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.55s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/tracing_tree-054bc4b819c16a7b)
[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] [stderr]      Running tests/ui.rs (/opt/rustwide/target/debug/deps/ui-f24b9582efa43593)
[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" "ef9e7afa7680e9f0fddac0e7793d20184034f8b60a4ddd17ff7606ce9f07fdf7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef9e7afa7680e9f0fddac0e7793d20184034f8b60a4ddd17ff7606ce9f07fdf7", kill_on_drop: false }`
[INFO] [stdout] ef9e7afa7680e9f0fddac0e7793d20184034f8b60a4ddd17ff7606ce9f07fdf7