[INFO] fetching crate docuum 0.20.3...
[INFO] testing docuum-0.20.3 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate docuum 0.20.3 into /workspace/builds/worker-78/source
[INFO] validating manifest of crates.io crate docuum 0.20.3 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 docuum 0.20.3
[INFO] finished tweaking crates.io crate docuum 0.20.3
[INFO] tweaked toml for crates.io crate docuum 0.20.3 written to /workspace/builds/worker-78/source/Cargo.toml
[INFO] crate crates.io crate docuum 0.20.3 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]     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-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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] 4d8742936433d3adc7df3ae779b79b23ae83b0deb64d2c80e26187d5117d596c
[INFO] running `Command { std: "docker" "start" "-a" "4d8742936433d3adc7df3ae779b79b23ae83b0deb64d2c80e26187d5117d596c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d8742936433d3adc7df3ae779b79b23ae83b0deb64d2c80e26187d5117d596c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d8742936433d3adc7df3ae779b79b23ae83b0deb64d2c80e26187d5117d596c", kill_on_drop: false }`
[INFO] [stdout] 4d8742936433d3adc7df3ae779b79b23ae83b0deb64d2c80e26187d5117d596c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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] 26baa9da37f0f834ecad7398c2b9377c7598469af016a687cb1bdbb9c064d0ea
[INFO] running `Command { std: "docker" "start" "-a" "26baa9da37f0f834ecad7398c2b9377c7598469af016a687cb1bdbb9c064d0ea", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling linked-hash-map v0.5.4
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling dtoa v0.4.8
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling utf8-width v0.1.5
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling byte-unit v4.0.12
[INFO] [stderr]    Compiling yaml-rust v0.4.5
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling term_size v0.3.2
[INFO] [stderr]    Compiling dirs-sys v0.3.6
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling dirs v3.0.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling env_logger v0.8.4
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling serde_yaml v0.8.17
[INFO] [stderr]    Compiling docuum v0.20.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.85s
[INFO] running `Command { std: "docker" "inspect" "26baa9da37f0f834ecad7398c2b9377c7598469af016a687cb1bdbb9c064d0ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26baa9da37f0f834ecad7398c2b9377c7598469af016a687cb1bdbb9c064d0ea", kill_on_drop: false }`
[INFO] [stdout] 26baa9da37f0f834ecad7398c2b9377c7598469af016a687cb1bdbb9c064d0ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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] bfae6bb86b5a86410222700e6c829cba7b7a3fab3592ad256589b19bac5fc129
[INFO] running `Command { std: "docker" "start" "-a" "bfae6bb86b5a86410222700e6c829cba7b7a3fab3592ad256589b19bac5fc129", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling docuum v0.20.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.25s
[INFO] running `Command { std: "docker" "inspect" "bfae6bb86b5a86410222700e6c829cba7b7a3fab3592ad256589b19bac5fc129", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfae6bb86b5a86410222700e6c829cba7b7a3fab3592ad256589b19bac5fc129", kill_on_drop: false }`
[INFO] [stdout] bfae6bb86b5a86410222700e6c829cba7b7a3fab3592ad256589b19bac5fc129
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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] ef665a432dce03252454a6457e7cf871caf0c8597e24f69a67b9000ee768970e
[INFO] running `Command { std: "docker" "start" "-a" "ef665a432dce03252454a6457e7cf871caf0c8597e24f69a67b9000ee768970e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/docuum-45b4a6791a62daf4)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test format::tests::code_str_display ... ok
[INFO] [stdout] test run::tests::construct_polyforest_empty ... ok
[INFO] [stdout] test run::tests::construct_polyforest_grandparent_parent_child_decreasing_timestamps ... ok
[INFO] [stdout] test run::tests::construct_polyforest_grandparent_parent_child_increasing_timestamps ... ok
[INFO] [stdout] test run::tests::construct_polyforest_multiple_children ... ok
[INFO] [stdout] test run::tests::construct_polyforest_parent_child_decreasing_timestamps ... ok
[INFO] [stdout] test run::tests::construct_polyforest_parent_child_increasing_timestamps ... ok
[INFO] [stdout] test run::tests::construct_polyforest_single_image ... ok
[INFO] [stdout] test run::tests::construct_polyforest_single_image_missing_state ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ef665a432dce03252454a6457e7cf871caf0c8597e24f69a67b9000ee768970e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef665a432dce03252454a6457e7cf871caf0c8597e24f69a67b9000ee768970e", kill_on_drop: false }`
[INFO] [stdout] ef665a432dce03252454a6457e7cf871caf0c8597e24f69a67b9000ee768970e