[INFO] fetching crate mulberry 0.1.0...
[INFO] testing mulberry-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate mulberry 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate mulberry 0.1.0 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 crates.io crate mulberry 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mulberry 0.1.0
[INFO] tweaked toml for crates.io crate mulberry 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate mulberry 0.1.0 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] 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" "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] e780898eaab80df3302bb6548e41a348d7847fa308f90e88cfa7dce09637d0dc
[INFO] running `Command { std: "docker" "start" "-a" "e780898eaab80df3302bb6548e41a348d7847fa308f90e88cfa7dce09637d0dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e780898eaab80df3302bb6548e41a348d7847fa308f90e88cfa7dce09637d0dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e780898eaab80df3302bb6548e41a348d7847fa308f90e88cfa7dce09637d0dc", kill_on_drop: false }`
[INFO] [stdout] e780898eaab80df3302bb6548e41a348d7847fa308f90e88cfa7dce09637d0dc
[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" "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] 7e797bba2e18489c5330e6a8aa8c90343709bbfcbdc79474d878b5a797e6d378
[INFO] running `Command { std: "docker" "start" "-a" "7e797bba2e18489c5330e6a8aa8c90343709bbfcbdc79474d878b5a797e6d378", kill_on_drop: false }`
[INFO] [stderr]    Compiling mulberry v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "7e797bba2e18489c5330e6a8aa8c90343709bbfcbdc79474d878b5a797e6d378", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e797bba2e18489c5330e6a8aa8c90343709bbfcbdc79474d878b5a797e6d378", kill_on_drop: false }`
[INFO] [stdout] 7e797bba2e18489c5330e6a8aa8c90343709bbfcbdc79474d878b5a797e6d378
[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" "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] 7d8465f33383f0e370fba0fa32b81ba78ab05709437b43c2725dff9bb36f4701
[INFO] running `Command { std: "docker" "start" "-a" "7d8465f33383f0e370fba0fa32b81ba78ab05709437b43c2725dff9bb36f4701", kill_on_drop: false }`
[INFO] [stderr]    Compiling mulberry v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "7d8465f33383f0e370fba0fa32b81ba78ab05709437b43c2725dff9bb36f4701", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d8465f33383f0e370fba0fa32b81ba78ab05709437b43c2725dff9bb36f4701", kill_on_drop: false }`
[INFO] [stdout] 7d8465f33383f0e370fba0fa32b81ba78ab05709437b43c2725dff9bb36f4701
[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" "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] ec693d2a55f7194dc1dfcb7a9e717631bc7c124b741d65791f04b1a2f5b364fb
[INFO] running `Command { std: "docker" "start" "-a" "ec693d2a55f7194dc1dfcb7a9e717631bc7c124b741d65791f04b1a2f5b364fb", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mulberry-6fa17ddf81ef51ad)
[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]    Doc-tests mulberry
[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" "ec693d2a55f7194dc1dfcb7a9e717631bc7c124b741d65791f04b1a2f5b364fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec693d2a55f7194dc1dfcb7a9e717631bc7c124b741d65791f04b1a2f5b364fb", kill_on_drop: false }`
[INFO] [stdout] ec693d2a55f7194dc1dfcb7a9e717631bc7c124b741d65791f04b1a2f5b364fb