[INFO] cloning repository https://github.com/Nitsuan/rust_tut
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Nitsuan/rust_tut" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNitsuan%2Frust_tut", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNitsuan%2Frust_tut'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ba6d029ab7b1454cdd5d1fa327816ae12ee5556e
[INFO] testing Nitsuan/rust_tut against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNitsuan%2Frust_tut" "/workspace/builds/worker-59/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-59/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Nitsuan/rust_tut 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 git repo https://github.com/Nitsuan/rust_tut
[INFO] finished tweaking git repo https://github.com/Nitsuan/rust_tut
[INFO] tweaked toml for git repo https://github.com/Nitsuan/rust_tut written to /workspace/builds/worker-59/source/Cargo.toml
[INFO] crate git repo https://github.com/Nitsuan/rust_tut already has a lockfile, it will not be regenerated
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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] c3445d24b19c5c6bc217a234f969fbdc72b09a497bccdee20ea4ac3f2a15b9f4
[INFO] running `Command { std: "docker" "start" "-a" "c3445d24b19c5c6bc217a234f969fbdc72b09a497bccdee20ea4ac3f2a15b9f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3445d24b19c5c6bc217a234f969fbdc72b09a497bccdee20ea4ac3f2a15b9f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3445d24b19c5c6bc217a234f969fbdc72b09a497bccdee20ea4ac3f2a15b9f4", kill_on_drop: false }`
[INFO] [stdout] c3445d24b19c5c6bc217a234f969fbdc72b09a497bccdee20ea4ac3f2a15b9f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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] f5d27d61659202a99cd51a6df302cd2c342abc7526001d8a9dbf7282e3131531
[INFO] running `Command { std: "docker" "start" "-a" "f5d27d61659202a99cd51a6df302cd2c342abc7526001d8a9dbf7282e3131531", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "f5d27d61659202a99cd51a6df302cd2c342abc7526001d8a9dbf7282e3131531", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f5d27d61659202a99cd51a6df302cd2c342abc7526001d8a9dbf7282e3131531", kill_on_drop: false }`
[INFO] [stdout] f5d27d61659202a99cd51a6df302cd2c342abc7526001d8a9dbf7282e3131531
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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] e7283455dd129143da037b22acfff276724e91eb78a6fa2c2417d979407f82ac
[INFO] running `Command { std: "docker" "start" "-a" "e7283455dd129143da037b22acfff276724e91eb78a6fa2c2417d979407f82ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "e7283455dd129143da037b22acfff276724e91eb78a6fa2c2417d979407f82ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7283455dd129143da037b22acfff276724e91eb78a6fa2c2417d979407f82ac", kill_on_drop: false }`
[INFO] [stdout] e7283455dd129143da037b22acfff276724e91eb78a6fa2c2417d979407f82ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-59/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] d33b188bcb30e570c5501caf4ebc94bf916d6ed4a0e78e9cc2ae132a48f631b8
[INFO] running `Command { std: "docker" "start" "-a" "d33b188bcb30e570c5501caf4ebc94bf916d6ed4a0e78e9cc2ae132a48f631b8", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_sandbox-3dcde6b1e9e4201c)
[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" "d33b188bcb30e570c5501caf4ebc94bf916d6ed4a0e78e9cc2ae132a48f631b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d33b188bcb30e570c5501caf4ebc94bf916d6ed4a0e78e9cc2ae132a48f631b8", kill_on_drop: false }`
[INFO] [stdout] d33b188bcb30e570c5501caf4ebc94bf916d6ed4a0e78e9cc2ae132a48f631b8