[INFO] fetching crate unicode-line-stacker 1.0.0...
[INFO] testing unicode-line-stacker-1.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate unicode-line-stacker 1.0.0 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate unicode-line-stacker 1.0.0 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 unicode-line-stacker 1.0.0
[INFO] finished tweaking crates.io crate unicode-line-stacker 1.0.0
[INFO] tweaked toml for crates.io crate unicode-line-stacker 1.0.0 written to /workspace/builds/worker-15/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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 0ae0ca23e7800afca66dcdf473046a3506da8ed91a45156a36302a3807261641
[INFO] running `Command { std: "docker" "start" "-a" "0ae0ca23e7800afca66dcdf473046a3506da8ed91a45156a36302a3807261641", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ae0ca23e7800afca66dcdf473046a3506da8ed91a45156a36302a3807261641", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ae0ca23e7800afca66dcdf473046a3506da8ed91a45156a36302a3807261641", kill_on_drop: false }`
[INFO] [stdout] 0ae0ca23e7800afca66dcdf473046a3506da8ed91a45156a36302a3807261641
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] c552b4694dd05758955996d3efafc7f0aaf16c9d6d4899bc973d9d17ede8df03
[INFO] running `Command { std: "docker" "start" "-a" "c552b4694dd05758955996d3efafc7f0aaf16c9d6d4899bc973d9d17ede8df03", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-line-stacker v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "c552b4694dd05758955996d3efafc7f0aaf16c9d6d4899bc973d9d17ede8df03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c552b4694dd05758955996d3efafc7f0aaf16c9d6d4899bc973d9d17ede8df03", kill_on_drop: false }`
[INFO] [stdout] c552b4694dd05758955996d3efafc7f0aaf16c9d6d4899bc973d9d17ede8df03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] c53501260d68be5682d3cb17d9ae03a8115b56769867719fbb2a757245914b6a
[INFO] running `Command { std: "docker" "start" "-a" "c53501260d68be5682d3cb17d9ae03a8115b56769867719fbb2a757245914b6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-line-stacker v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "c53501260d68be5682d3cb17d9ae03a8115b56769867719fbb2a757245914b6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c53501260d68be5682d3cb17d9ae03a8115b56769867719fbb2a757245914b6a", kill_on_drop: false }`
[INFO] [stdout] c53501260d68be5682d3cb17d9ae03a8115b56769867719fbb2a757245914b6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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] 8ddd49483534ad06bc12f543ebc096fa6078c3c84a1383ade4d714a277159b47
[INFO] running `Command { std: "docker" "start" "-a" "8ddd49483534ad06bc12f543ebc096fa6078c3c84a1383ade4d714a277159b47", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/unicode_line_stacker-c12a877e6bd70f6e)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::stack_with_empty ... ok
[INFO] [stdout] test tests::bits_to_char_panics_on_input_16 - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests unicode-line-stacker
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - char_to_bits (line 42) ... ok
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] test src/lib.rs - bits_to_char (line 66) ... ok
[INFO] [stdout] test src/lib.rs - stack (line 21) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.28s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8ddd49483534ad06bc12f543ebc096fa6078c3c84a1383ade4d714a277159b47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ddd49483534ad06bc12f543ebc096fa6078c3c84a1383ade4d714a277159b47", kill_on_drop: false }`
[INFO] [stdout] 8ddd49483534ad06bc12f543ebc096fa6078c3c84a1383ade4d714a277159b47