[INFO] fetching crate tracing-tree 0.1.6...
[INFO] testing tracing-tree-0.1.6 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate tracing-tree 0.1.6 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate tracing-tree 0.1.6 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tracing-tree 0.1.6
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate tracing-tree 0.1.6
[INFO] tweaked toml for crates.io crate tracing-tree 0.1.6 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate tracing-tree 0.1.6 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4f44f00cea2b67f986eb3529950eb3b3f54b7f1120f4124e18ab19e7430cd808
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4f44f00cea2b67f986eb3529950eb3b3f54b7f1120f4124e18ab19e7430cd808", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4f44f00cea2b67f986eb3529950eb3b3f54b7f1120f4124e18ab19e7430cd808", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4f44f00cea2b67f986eb3529950eb3b3f54b7f1120f4124e18ab19e7430cd808", kill_on_drop: false }`
[INFO] [stdout] 4f44f00cea2b67f986eb3529950eb3b3f54b7f1120f4124e18ab19e7430cd808
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5e102e379b84803bb013c54d41b96919d4c32f5160d142003dc5d72183c6bb34
[INFO] running `Command { std: "docker" "start" "-a" "5e102e379b84803bb013c54d41b96919d4c32f5160d142003dc5d72183c6bb34", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.8
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling tracing-core v0.1.9
[INFO] [stderr]    Compiling sharded-slab v0.0.8
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling chrono v0.4.10
[INFO] [stderr]    Compiling tracing-subscriber v0.2.3
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.6
[INFO] [stderr]    Compiling tracing v0.1.12
[INFO] [stderr]    Compiling tracing-tree v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.79s
[INFO] running `Command { std: "docker" "inspect" "5e102e379b84803bb013c54d41b96919d4c32f5160d142003dc5d72183c6bb34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e102e379b84803bb013c54d41b96919d4c32f5160d142003dc5d72183c6bb34", kill_on_drop: false }`
[INFO] [stdout] 5e102e379b84803bb013c54d41b96919d4c32f5160d142003dc5d72183c6bb34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] baa7f4b226ad8dc0b81219a7fe5b592d3b14fd1de431c4777fe34ee69f1aee44
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "baa7f4b226ad8dc0b81219a7fe5b592d3b14fd1de431c4777fe34ee69f1aee44", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling predicates v1.0.5
[INFO] [stderr]    Compiling wait-timeout v0.2.0
[INFO] [stderr]    Compiling assert_cmd v1.0.1
[INFO] [stderr]    Compiling tracing-tree v0.1.6 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.45s
[INFO] running `Command { std: "docker" "inspect" "baa7f4b226ad8dc0b81219a7fe5b592d3b14fd1de431c4777fe34ee69f1aee44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "baa7f4b226ad8dc0b81219a7fe5b592d3b14fd1de431c4777fe34ee69f1aee44", kill_on_drop: false }`
[INFO] [stdout] baa7f4b226ad8dc0b81219a7fe5b592d3b14fd1de431c4777fe34ee69f1aee44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2b23a6e5c26d70b1cdaaa9d49c57ca40aaf651a38e052bbfd6e781f004af4a4e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2b23a6e5c26d70b1cdaaa9d49c57ca40aaf651a38e052bbfd6e781f004af4a4e", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/tracing_tree-3e7e7502b1d84045
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/ui-c497b5f1054f9a8a
[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" "2b23a6e5c26d70b1cdaaa9d49c57ca40aaf651a38e052bbfd6e781f004af4a4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b23a6e5c26d70b1cdaaa9d49c57ca40aaf651a38e052bbfd6e781f004af4a4e", kill_on_drop: false }`
[INFO] [stdout] 2b23a6e5c26d70b1cdaaa9d49c57ca40aaf651a38e052bbfd6e781f004af4a4e