[INFO] cloning repository https://github.com/maxmcd/single-bytes-poc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maxmcd/single-bytes-poc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxmcd%2Fsingle-bytes-poc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxmcd%2Fsingle-bytes-poc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c4dc16993e268f704204acd11b71e4ec3b1cf192
[INFO] testing maxmcd/single-bytes-poc against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaxmcd%2Fsingle-bytes-poc" "/workspace/builds/worker-74/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-74/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/maxmcd/single-bytes-poc 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 git repo https://github.com/maxmcd/single-bytes-poc
[INFO] finished tweaking git repo https://github.com/maxmcd/single-bytes-poc
[INFO] tweaked toml for git repo https://github.com/maxmcd/single-bytes-poc written to /workspace/builds/worker-74/source/Cargo.toml
[INFO] crate git repo https://github.com/maxmcd/single-bytes-poc already has a lockfile, it will not be regenerated
[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-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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] 46221645918b02a5f5e85200b7eb92453777ca585912f084d8894cf3d623a386
[INFO] running `Command { std: "docker" "start" "-a" "46221645918b02a5f5e85200b7eb92453777ca585912f084d8894cf3d623a386", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46221645918b02a5f5e85200b7eb92453777ca585912f084d8894cf3d623a386", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46221645918b02a5f5e85200b7eb92453777ca585912f084d8894cf3d623a386", kill_on_drop: false }`
[INFO] [stdout] 46221645918b02a5f5e85200b7eb92453777ca585912f084d8894cf3d623a386
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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] be558e68cc780d0a6eeeded7941b5fbab0894829b0d5a14d24524607ba2378d6
[INFO] running `Command { std: "docker" "start" "-a" "be558e68cc780d0a6eeeded7941b5fbab0894829b0d5a14d24524607ba2378d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling single-bytes-poc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.66s
[INFO] running `Command { std: "docker" "inspect" "be558e68cc780d0a6eeeded7941b5fbab0894829b0d5a14d24524607ba2378d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be558e68cc780d0a6eeeded7941b5fbab0894829b0d5a14d24524607ba2378d6", kill_on_drop: false }`
[INFO] [stdout] be558e68cc780d0a6eeeded7941b5fbab0894829b0d5a14d24524607ba2378d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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] 6c77a95199dc6de177523fb69bc4d3c4778227a6c63396dcc9a16f4eaf8b8956
[INFO] running `Command { std: "docker" "start" "-a" "6c77a95199dc6de177523fb69bc4d3c4778227a6c63396dcc9a16f4eaf8b8956", kill_on_drop: false }`
[INFO] [stderr]    Compiling single-bytes-poc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 27.47s
[INFO] running `Command { std: "docker" "inspect" "6c77a95199dc6de177523fb69bc4d3c4778227a6c63396dcc9a16f4eaf8b8956", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c77a95199dc6de177523fb69bc4d3c4778227a6c63396dcc9a16f4eaf8b8956", kill_on_drop: false }`
[INFO] [stdout] 6c77a95199dc6de177523fb69bc4d3c4778227a6c63396dcc9a16f4eaf8b8956
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-74/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] a17f4be0778125bcb92d2613c2227edf87d6e8b276fd79d1849b36513e35e79b
[INFO] running `Command { std: "docker" "start" "-a" "a17f4be0778125bcb92d2613c2227edf87d6e8b276fd79d1849b36513e35e79b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/single_bytes_poc-126e29ac95595e55)
[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" "a17f4be0778125bcb92d2613c2227edf87d6e8b276fd79d1849b36513e35e79b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a17f4be0778125bcb92d2613c2227edf87d6e8b276fd79d1849b36513e35e79b", kill_on_drop: false }`
[INFO] [stdout] a17f4be0778125bcb92d2613c2227edf87d6e8b276fd79d1849b36513e35e79b