[INFO] fetching crate substr 1.0.0...
[INFO] testing substr-1.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate substr 1.0.0 into /workspace/builds/worker-25/source
[INFO] validating manifest of crates.io crate substr 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 substr 1.0.0
[INFO] finished tweaking crates.io crate substr 1.0.0
[INFO] tweaked toml for crates.io crate substr 1.0.0 written to /workspace/builds/worker-25/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-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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] 9857792e4a1352bab0159cc9611208a2b7e86132a36c502f94ed85e1726e78d8
[INFO] running `Command { std: "docker" "start" "-a" "9857792e4a1352bab0159cc9611208a2b7e86132a36c502f94ed85e1726e78d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9857792e4a1352bab0159cc9611208a2b7e86132a36c502f94ed85e1726e78d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9857792e4a1352bab0159cc9611208a2b7e86132a36c502f94ed85e1726e78d8", kill_on_drop: false }`
[INFO] [stdout] 9857792e4a1352bab0159cc9611208a2b7e86132a36c502f94ed85e1726e78d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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] 9283f197f97066e7cfc38dcc28316afbcd17a33494d512ac9808b7756c72f23b
[INFO] running `Command { std: "docker" "start" "-a" "9283f197f97066e7cfc38dcc28316afbcd17a33494d512ac9808b7756c72f23b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling substr v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "9283f197f97066e7cfc38dcc28316afbcd17a33494d512ac9808b7756c72f23b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9283f197f97066e7cfc38dcc28316afbcd17a33494d512ac9808b7756c72f23b", kill_on_drop: false }`
[INFO] [stdout] 9283f197f97066e7cfc38dcc28316afbcd17a33494d512ac9808b7756c72f23b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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] c4cb49ff1e00ec208f4d56086d9436d11cf914d7ce8c2b606a815c0aaba1fb81
[INFO] running `Command { std: "docker" "start" "-a" "c4cb49ff1e00ec208f4d56086d9436d11cf914d7ce8c2b606a815c0aaba1fb81", kill_on_drop: false }`
[INFO] [stderr]    Compiling substr v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "c4cb49ff1e00ec208f4d56086d9436d11cf914d7ce8c2b606a815c0aaba1fb81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4cb49ff1e00ec208f4d56086d9436d11cf914d7ce8c2b606a815c0aaba1fb81", kill_on_drop: false }`
[INFO] [stdout] c4cb49ff1e00ec208f4d56086d9436d11cf914d7ce8c2b606a815c0aaba1fb81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-25/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] dcc742e913c360ccd771adc1a8db68f306de346729ff9b1cbcd8d03e8506b39f
[INFO] running `Command { std: "docker" "start" "-a" "dcc742e913c360ccd771adc1a8db68f306de346729ff9b1cbcd8d03e8506b39f", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/substr-487ef4523ff4468b)
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test tests::empty_equality ... ok
[INFO] [stdout] test tests::equality ... ok
[INFO] [stdout] test tests::equality_with_different_parents ... ok
[INFO] [stdout] test tests::find_substr ... ok
[INFO] [stdout] test tests::from_range ... ok
[INFO] [stdout] test tests::roundtrip_preserves_ptr ... ok
[INFO] [stdout] test tests::roundtrip_with_contained_child ... ok
[INFO] [stdout] test tests::roundtrip_with_different_parent ... ok
[INFO] [stdout] test tests::to_range ... ok
[INFO] [stderr]    Doc-tests substr
[INFO] [stdout] test tests::roundtrip_without_contained_child ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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" "dcc742e913c360ccd771adc1a8db68f306de346729ff9b1cbcd8d03e8506b39f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcc742e913c360ccd771adc1a8db68f306de346729ff9b1cbcd8d03e8506b39f", kill_on_drop: false }`
[INFO] [stdout] dcc742e913c360ccd771adc1a8db68f306de346729ff9b1cbcd8d03e8506b39f