[INFO] fetching crate digits_iterator 0.1.0...
[INFO] testing digits_iterator-0.1.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate digits_iterator 0.1.0 into /workspace/builds/worker-20/source
[INFO] validating manifest of crates.io crate digits_iterator 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 digits_iterator 0.1.0
[INFO] finished tweaking crates.io crate digits_iterator 0.1.0
[INFO] tweaked toml for crates.io crate digits_iterator 0.1.0 written to /workspace/builds/worker-20/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] 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-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 2e445ff0037f9515dd435eb1fe6e7a8d3d2c7defb576d94a42408fa853aef540
[INFO] running `Command { std: "docker" "start" "-a" "2e445ff0037f9515dd435eb1fe6e7a8d3d2c7defb576d94a42408fa853aef540", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2e445ff0037f9515dd435eb1fe6e7a8d3d2c7defb576d94a42408fa853aef540", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e445ff0037f9515dd435eb1fe6e7a8d3d2c7defb576d94a42408fa853aef540", kill_on_drop: false }`
[INFO] [stdout] 2e445ff0037f9515dd435eb1fe6e7a8d3d2c7defb576d94a42408fa853aef540
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] a770d38b651aa617f5ee931e767acf562aa38b1104e2a9e7bab788070eb50f0d
[INFO] running `Command { std: "docker" "start" "-a" "a770d38b651aa617f5ee931e767acf562aa38b1104e2a9e7bab788070eb50f0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling digits_iterator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.26s
[INFO] running `Command { std: "docker" "inspect" "a770d38b651aa617f5ee931e767acf562aa38b1104e2a9e7bab788070eb50f0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a770d38b651aa617f5ee931e767acf562aa38b1104e2a9e7bab788070eb50f0d", kill_on_drop: false }`
[INFO] [stdout] a770d38b651aa617f5ee931e767acf562aa38b1104e2a9e7bab788070eb50f0d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] dc12360511cdadbb30cfa39e66c06431fe0c37f8f968db5c00a6c512092d1a6f
[INFO] running `Command { std: "docker" "start" "-a" "dc12360511cdadbb30cfa39e66c06431fe0c37f8f968db5c00a6c512092d1a6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling digits_iterator v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "dc12360511cdadbb30cfa39e66c06431fe0c37f8f968db5c00a6c512092d1a6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc12360511cdadbb30cfa39e66c06431fe0c37f8f968db5c00a6c512092d1a6f", kill_on_drop: false }`
[INFO] [stdout] dc12360511cdadbb30cfa39e66c06431fe0c37f8f968db5c00a6c512092d1a6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-20/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] 702e5e623260e7d1df7c459dc7fcdf3336d51af596f8c8a513a2d36c09562485
[INFO] running `Command { std: "docker" "start" "-a" "702e5e623260e7d1df7c459dc7fcdf3336d51af596f8c8a513a2d36c09562485", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/digits_iterator-dc2f8e1baeaa2477)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test digits::tests::iteration_for_0 ... ok
[INFO] [stdout] test digits::tests::iteration_for_1_digit ... ok
[INFO] [stdout] test digits::tests::iteration_for_a_multiple_of_the_base ... ok
[INFO] [stdout] test digits::tests::iteration_for_some_number ... ok
[INFO] [stdout] test digits::tests::iteration_for_the_max_value ... ok
[INFO] [stdout] test digits::tests::iteration_with_hexa_number ... ok
[INFO] [stdout] test digits::tests::reverse_iteration_for_0 ... ok
[INFO] [stdout] test digits::tests::reverse_iteration_for_1_digit ... ok
[INFO] [stdout] test digits::tests::reverse_iteration_for_a_multiple_of_the_base ... ok
[INFO] [stdout] test digits::tests::reverse_iteration_for_some_number ... ok
[INFO] [stdout] test digits::tests::reverse_iteration_for_the_max_value ... ok
[INFO] [stdout] test tests::simple_extension_test ... ok
[INFO] [stdout] test tests::invalid_base_1 - should panic ... ok
[INFO] [stdout] test tests::invalid_base_37 - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests digits_iterator
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 10) ... ok
[INFO] [stdout] test src/lib.rs - DigitsExtension::digits_with_base (line 60) ... ok
[INFO] [stdout] test src/lib.rs - (line 17) ... ok
[INFO] [stdout] test src/lib.rs - DigitsExtension::digits (line 44) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.50s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "702e5e623260e7d1df7c459dc7fcdf3336d51af596f8c8a513a2d36c09562485", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "702e5e623260e7d1df7c459dc7fcdf3336d51af596f8c8a513a2d36c09562485", kill_on_drop: false }`
[INFO] [stdout] 702e5e623260e7d1df7c459dc7fcdf3336d51af596f8c8a513a2d36c09562485