[INFO] cloning repository https://github.com/bibliotechy/pairtree
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bibliotechy/pairtree" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbibliotechy%2Fpairtree", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbibliotechy%2Fpairtree'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0eb4589a4a519cbd6c0bbc85f2c4c32cf010950a
[INFO] testing bibliotechy/pairtree against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbibliotechy%2Fpairtree" "/workspace/builds/worker-83/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-83/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/bibliotechy/pairtree on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/bibliotechy/pairtree
[INFO] finished tweaking git repo https://github.com/bibliotechy/pairtree
[INFO] tweaked toml for git repo https://github.com/bibliotechy/pairtree written to /workspace/builds/worker-83/source/Cargo.toml
[INFO] crate git repo https://github.com/bibliotechy/pairtree already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cpufeatures v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 96bed99633bcc40e55aa1d048057116fd16b2d7913c1194e1774d8a088896d18
[INFO] running `Command { std: "docker" "start" "-a" "96bed99633bcc40e55aa1d048057116fd16b2d7913c1194e1774d8a088896d18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96bed99633bcc40e55aa1d048057116fd16b2d7913c1194e1774d8a088896d18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96bed99633bcc40e55aa1d048057116fd16b2d7913c1194e1774d8a088896d18", kill_on_drop: false }`
[INFO] [stdout] 96bed99633bcc40e55aa1d048057116fd16b2d7913c1194e1774d8a088896d18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2dd484d14c68a883689f89a1c9657024e76e6bbdc6839db7f18e24e64bd857a
[INFO] running `Command { std: "docker" "start" "-a" "b2dd484d14c68a883689f89a1c9657024e76e6bbdc6839db7f18e24e64bd857a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling typenum v1.13.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling subtle v2.4.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling cpufeatures v0.1.3
[INFO] [stderr]    Compiling hex v0.4.3
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling blake3 v0.3.7
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling digest v0.9.0
[INFO] [stderr]    Compiling block-buffer v0.9.0
[INFO] [stderr]    Compiling crypto-mac v0.8.0
[INFO] [stderr]    Compiling md-5 v0.9.1
[INFO] [stderr]    Compiling sha-1 v0.9.6
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling structopt v0.3.21
[INFO] [stderr]    Compiling pairtree v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.65s
[INFO] running `Command { std: "docker" "inspect" "b2dd484d14c68a883689f89a1c9657024e76e6bbdc6839db7f18e24e64bd857a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2dd484d14c68a883689f89a1c9657024e76e6bbdc6839db7f18e24e64bd857a", kill_on_drop: false }`
[INFO] [stdout] b2dd484d14c68a883689f89a1c9657024e76e6bbdc6839db7f18e24e64bd857a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d360386708751f44937859e1e41d0f8c104d23f4f340ce075b9417db2f70777
[INFO] running `Command { std: "docker" "start" "-a" "6d360386708751f44937859e1e41d0f8c104d23f4f340ce075b9417db2f70777", kill_on_drop: false }`
[INFO] [stderr]    Compiling pairtree v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 11.60s
[INFO] running `Command { std: "docker" "inspect" "6d360386708751f44937859e1e41d0f8c104d23f4f340ce075b9417db2f70777", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d360386708751f44937859e1e41d0f8c104d23f4f340ce075b9417db2f70777", kill_on_drop: false }`
[INFO] [stdout] 6d360386708751f44937859e1e41d0f8c104d23f4f340ce075b9417db2f70777
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d70d3914ae15568a9abf688a1fe77f5c9de7d3be6e08cb652f5d94d69da229e7
[INFO] running `Command { std: "docker" "start" "-a" "d70d3914ae15568a9abf688a1fe77f5c9de7d3be6e08cb652f5d94d69da229e7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/pairtree-64d5bbdcd54f8c0a)
[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" "d70d3914ae15568a9abf688a1fe77f5c9de7d3be6e08cb652f5d94d69da229e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d70d3914ae15568a9abf688a1fe77f5c9de7d3be6e08cb652f5d94d69da229e7", kill_on_drop: false }`
[INFO] [stdout] d70d3914ae15568a9abf688a1fe77f5c9de7d3be6e08cb652f5d94d69da229e7