[INFO] fetching crate skip_do 0.1.0...
[INFO] testing skip_do-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate skip_do 0.1.0 into /workspace/builds/worker-53/source
[INFO] validating manifest of crates.io crate skip_do 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 skip_do 0.1.0
[INFO] finished tweaking crates.io crate skip_do 0.1.0
[INFO] tweaked toml for crates.io crate skip_do 0.1.0 written to /workspace/builds/worker-53/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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] e0a868264b973d1dee2e2f160ba1635c5012f8aa08e093399de7b7f3fdb7fccd
[INFO] running `Command { std: "docker" "start" "-a" "e0a868264b973d1dee2e2f160ba1635c5012f8aa08e093399de7b7f3fdb7fccd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0a868264b973d1dee2e2f160ba1635c5012f8aa08e093399de7b7f3fdb7fccd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0a868264b973d1dee2e2f160ba1635c5012f8aa08e093399de7b7f3fdb7fccd", kill_on_drop: false }`
[INFO] [stdout] e0a868264b973d1dee2e2f160ba1635c5012f8aa08e093399de7b7f3fdb7fccd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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] 35b96e769da9b71f7d9f2cba8bbf115dfcd00bc5e67049c9c5a2d865c3c418e1
[INFO] running `Command { std: "docker" "start" "-a" "35b96e769da9b71f7d9f2cba8bbf115dfcd00bc5e67049c9c5a2d865c3c418e1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling skip_do v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.59s
[INFO] running `Command { std: "docker" "inspect" "35b96e769da9b71f7d9f2cba8bbf115dfcd00bc5e67049c9c5a2d865c3c418e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35b96e769da9b71f7d9f2cba8bbf115dfcd00bc5e67049c9c5a2d865c3c418e1", kill_on_drop: false }`
[INFO] [stdout] 35b96e769da9b71f7d9f2cba8bbf115dfcd00bc5e67049c9c5a2d865c3c418e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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] 7e19be6e61e00e61744a2d87a4d70c2415048a4f86acff9a19cefe2b0d9f9d49
[INFO] running `Command { std: "docker" "start" "-a" "7e19be6e61e00e61744a2d87a4d70c2415048a4f86acff9a19cefe2b0d9f9d49", kill_on_drop: false }`
[INFO] [stderr]    Compiling skip_do v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "7e19be6e61e00e61744a2d87a4d70c2415048a4f86acff9a19cefe2b0d9f9d49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7e19be6e61e00e61744a2d87a4d70c2415048a4f86acff9a19cefe2b0d9f9d49", kill_on_drop: false }`
[INFO] [stdout] 7e19be6e61e00e61744a2d87a4d70c2415048a4f86acff9a19cefe2b0d9f9d49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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] 27a722495571b2dee77afdb32bc063cb250b01a6ffb7f3128456624ff443962b
[INFO] running `Command { std: "docker" "start" "-a" "27a722495571b2dee77afdb32bc063cb250b01a6ffb7f3128456624ff443962b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.42s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/skip_do-8560e7029f381e45)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests skip_do
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - SkipDoIterator (line 24) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.63s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "27a722495571b2dee77afdb32bc063cb250b01a6ffb7f3128456624ff443962b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27a722495571b2dee77afdb32bc063cb250b01a6ffb7f3128456624ff443962b", kill_on_drop: false }`
[INFO] [stdout] 27a722495571b2dee77afdb32bc063cb250b01a6ffb7f3128456624ff443962b