[INFO] fetching crate mp4ra-rust 0.1.0...
[INFO] testing mp4ra-rust-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate mp4ra-rust 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate mp4ra-rust 0.1.0 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 mp4ra-rust 0.1.0
[INFO] finished tweaking crates.io crate mp4ra-rust 0.1.0
[INFO] tweaked toml for crates.io crate mp4ra-rust 0.1.0 written to /workspace/builds/worker-4/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] 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 932c55fca4a52351304c21b7d8a961ca32a84199bd09f169094a933764d78ba2
[INFO] running `Command { std: "docker" "start" "-a" "932c55fca4a52351304c21b7d8a961ca32a84199bd09f169094a933764d78ba2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "932c55fca4a52351304c21b7d8a961ca32a84199bd09f169094a933764d78ba2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "932c55fca4a52351304c21b7d8a961ca32a84199bd09f169094a933764d78ba2", kill_on_drop: false }`
[INFO] [stdout] 932c55fca4a52351304c21b7d8a961ca32a84199bd09f169094a933764d78ba2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 559277be4620a8d8e55e78f80d20667eab9e30ad2b911b8ab079b5ef9e3a27fe
[INFO] running `Command { std: "docker" "start" "-a" "559277be4620a8d8e55e78f80d20667eab9e30ad2b911b8ab079b5ef9e3a27fe", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling four-cc v0.1.0
[INFO] [stderr]    Compiling mp4ra-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.31s
[INFO] running `Command { std: "docker" "inspect" "559277be4620a8d8e55e78f80d20667eab9e30ad2b911b8ab079b5ef9e3a27fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "559277be4620a8d8e55e78f80d20667eab9e30ad2b911b8ab079b5ef9e3a27fe", kill_on_drop: false }`
[INFO] [stdout] 559277be4620a8d8e55e78f80d20667eab9e30ad2b911b8ab079b5ef9e3a27fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 2e751fc0e2cfd5193d14fa619398f9fe87d04e104ed47a4fb8a4bda549cdbecb
[INFO] running `Command { std: "docker" "start" "-a" "2e751fc0e2cfd5193d14fa619398f9fe87d04e104ed47a4fb8a4bda549cdbecb", kill_on_drop: false }`
[INFO] [stderr]    Compiling mp4ra-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.59s
[INFO] running `Command { std: "docker" "inspect" "2e751fc0e2cfd5193d14fa619398f9fe87d04e104ed47a4fb8a4bda549cdbecb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e751fc0e2cfd5193d14fa619398f9fe87d04e104ed47a4fb8a4bda549cdbecb", kill_on_drop: false }`
[INFO] [stdout] 2e751fc0e2cfd5193d14fa619398f9fe87d04e104ed47a4fb8a4bda549cdbecb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] fb24957ba1a836ec176ee5a69d002fdf1439e62172e35a4597cf45bdd4a4a47f
[INFO] running `Command { std: "docker" "start" "-a" "fb24957ba1a836ec176ee5a69d002fdf1439e62172e35a4597cf45bdd4a4a47f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mp4ra_rust-0b8403e833a8b92b)
[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] [stderr]    Doc-tests mp4ra-rust
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/lib.rs - ObjectTypeIdentifier (line 58) ... ok
[INFO] [stdout] test src/lib.rs - ObjectTypeIdentifier (line 25) ... ok
[INFO] [stdout] test src/lib.rs - ObjectTypeIdentifier (line 71) ... ok
[INFO] [stdout] test src/lib.rs - ObjectTypeIdentifier (line 35) ... ok
[INFO] [stdout] test src/lib.rs - SampleEntryCode (line 125) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.61s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "fb24957ba1a836ec176ee5a69d002fdf1439e62172e35a4597cf45bdd4a4a47f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb24957ba1a836ec176ee5a69d002fdf1439e62172e35a4597cf45bdd4a4a47f", kill_on_drop: false }`
[INFO] [stdout] fb24957ba1a836ec176ee5a69d002fdf1439e62172e35a4597cf45bdd4a4a47f