[INFO] fetching crate substring 1.4.5...
[INFO] testing substring-1.4.5 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate substring 1.4.5 into /workspace/builds/worker-70/source
[INFO] validating manifest of crates.io crate substring 1.4.5 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate substring 1.4.5
[INFO] finished tweaking crates.io crate substring 1.4.5
[INFO] tweaked toml for crates.io crate substring 1.4.5 written to /workspace/builds/worker-70/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "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" "+beta-2021-09-08" "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-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd9619490f8b00194f8c1d01b362c9767786d9ec73f97805c0853b47073fd461
[INFO] running `Command { std: "docker" "start" "-a" "dd9619490f8b00194f8c1d01b362c9767786d9ec73f97805c0853b47073fd461", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd9619490f8b00194f8c1d01b362c9767786d9ec73f97805c0853b47073fd461", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd9619490f8b00194f8c1d01b362c9767786d9ec73f97805c0853b47073fd461", kill_on_drop: false }`
[INFO] [stdout] dd9619490f8b00194f8c1d01b362c9767786d9ec73f97805c0853b47073fd461
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d1d523d577b2763978b8765e128fc12c57c00b44a0cdb4c563b16a677973ecd
[INFO] running `Command { std: "docker" "start" "-a" "9d1d523d577b2763978b8765e128fc12c57c00b44a0cdb4c563b16a677973ecd", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling substring v1.4.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.47s
[INFO] running `Command { std: "docker" "inspect" "9d1d523d577b2763978b8765e128fc12c57c00b44a0cdb4c563b16a677973ecd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d1d523d577b2763978b8765e128fc12c57c00b44a0cdb4c563b16a677973ecd", kill_on_drop: false }`
[INFO] [stdout] 9d1d523d577b2763978b8765e128fc12c57c00b44a0cdb4c563b16a677973ecd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 535e4f29a96e028577453387f892db9ffb843864299a170e7fc0ec92149d7fed
[INFO] running `Command { std: "docker" "start" "-a" "535e4f29a96e028577453387f892db9ffb843864299a170e7fc0ec92149d7fed", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling substring v1.4.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "535e4f29a96e028577453387f892db9ffb843864299a170e7fc0ec92149d7fed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "535e4f29a96e028577453387f892db9ffb843864299a170e7fc0ec92149d7fed", kill_on_drop: false }`
[INFO] [stdout] 535e4f29a96e028577453387f892db9ffb843864299a170e7fc0ec92149d7fed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b918112f21a07749f6817aa1d4c6664677acd5c4f2e5d6ea35a388fdd8ca4198
[INFO] running `Command { std: "docker" "start" "-a" "b918112f21a07749f6817aa1d4c6664677acd5c4f2e5d6ea35a388fdd8ca4198", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/substring-ec289a2e76ba64ce)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::test_multiple_byte_characters ... ok
[INFO] [stdout] test tests::test_out_of_bounds ... ok
[INFO] [stdout] test tests::test_start_and_end_equal ... ok
[INFO] [stdout] test tests::test_start_less_than_end ... ok
[INFO] [stdout] test tests::test_substring ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests substring
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - (line 28) ... ok
[INFO] [stdout] test src/lib.rs - str::substring (line 81) ... ok
[INFO] [stdout] test src/lib.rs - (line 10) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.24s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b918112f21a07749f6817aa1d4c6664677acd5c4f2e5d6ea35a388fdd8ca4198", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b918112f21a07749f6817aa1d4c6664677acd5c4f2e5d6ea35a388fdd8ca4198", kill_on_drop: false }`
[INFO] [stdout] b918112f21a07749f6817aa1d4c6664677acd5c4f2e5d6ea35a388fdd8ca4198