[INFO] fetching crate libsts 0.3.1...
[INFO] testing libsts-0.3.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate libsts 0.3.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate libsts 0.3.1 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 libsts 0.3.1
[INFO] finished tweaking crates.io crate libsts 0.3.1
[INFO] tweaked toml for crates.io crate libsts 0.3.1 written to /workspace/builds/worker-5/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 30c78d9905f25b0b6475f8fa694e5297044a855d39c09bfa15805c1a47ece9a8
[INFO] running `Command { std: "docker" "start" "-a" "30c78d9905f25b0b6475f8fa694e5297044a855d39c09bfa15805c1a47ece9a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "30c78d9905f25b0b6475f8fa694e5297044a855d39c09bfa15805c1a47ece9a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30c78d9905f25b0b6475f8fa694e5297044a855d39c09bfa15805c1a47ece9a8", kill_on_drop: false }`
[INFO] [stdout] 30c78d9905f25b0b6475f8fa694e5297044a855d39c09bfa15805c1a47ece9a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] e85e3cf2464ddae25a31addf9d811af0775c57f1ccb2730d807058c1a4eeefc1
[INFO] running `Command { std: "docker" "start" "-a" "e85e3cf2464ddae25a31addf9d811af0775c57f1ccb2730d807058c1a4eeefc1", kill_on_drop: false }`
[INFO] [stderr]    Compiling base64 v0.11.0
[INFO] [stderr]    Compiling backtrace v0.3.61
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling libsts v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.72s
[INFO] running `Command { std: "docker" "inspect" "e85e3cf2464ddae25a31addf9d811af0775c57f1ccb2730d807058c1a4eeefc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e85e3cf2464ddae25a31addf9d811af0775c57f1ccb2730d807058c1a4eeefc1", kill_on_drop: false }`
[INFO] [stdout] e85e3cf2464ddae25a31addf9d811af0775c57f1ccb2730d807058c1a4eeefc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 15d5e12bb47a45bc361b7605b3b340b54168cdf758b0a292cf70f0ad26bf3dba
[INFO] running `Command { std: "docker" "start" "-a" "15d5e12bb47a45bc361b7605b3b340b54168cdf758b0a292cf70f0ad26bf3dba", kill_on_drop: false }`
[INFO] [stderr]    Compiling fwatch v0.1.5
[INFO] [stderr]    Compiling libsts v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.64s
[INFO] running `Command { std: "docker" "inspect" "15d5e12bb47a45bc361b7605b3b340b54168cdf758b0a292cf70f0ad26bf3dba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15d5e12bb47a45bc361b7605b3b340b54168cdf758b0a292cf70f0ad26bf3dba", kill_on_drop: false }`
[INFO] [stdout] 15d5e12bb47a45bc361b7605b3b340b54168cdf758b0a292cf70f0ad26bf3dba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 3ecb094f9c05a52b9135801b1067627a588678cb9469e676c03d7d9a25bb5bbb
[INFO] running `Command { std: "docker" "start" "-a" "3ecb094f9c05a52b9135801b1067627a588678cb9469e676c03d7d9a25bb5bbb", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/libsts-19aef09d8ce57322)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests libsts
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/save.rs - save::Save::new (line 164) - compile ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.16s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "3ecb094f9c05a52b9135801b1067627a588678cb9469e676c03d7d9a25bb5bbb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ecb094f9c05a52b9135801b1067627a588678cb9469e676c03d7d9a25bb5bbb", kill_on_drop: false }`
[INFO] [stdout] 3ecb094f9c05a52b9135801b1067627a588678cb9469e676c03d7d9a25bb5bbb