[INFO] cloning repository https://github.com/hmrclt/rust-euler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hmrclt/rust-euler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhmrclt%2Frust-euler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhmrclt%2Frust-euler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d8bee89e272bacb6da92271d4b1672709b056903
[INFO] testing hmrclt/rust-euler against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhmrclt%2Frust-euler" "/workspace/builds/worker-52/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-52/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hmrclt/rust-euler 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/hmrclt/rust-euler
[INFO] finished tweaking git repo https://github.com/hmrclt/rust-euler
[INFO] tweaked toml for git repo https://github.com/hmrclt/rust-euler written to /workspace/builds/worker-52/source/Cargo.toml
[INFO] crate git repo https://github.com/hmrclt/rust-euler 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-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 9da220c74cd6c63e796a62d0eaff56f4fbf12f9ef6c6ee5ec88df19980037bec
[INFO] running `Command { std: "docker" "start" "-a" "9da220c74cd6c63e796a62d0eaff56f4fbf12f9ef6c6ee5ec88df19980037bec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9da220c74cd6c63e796a62d0eaff56f4fbf12f9ef6c6ee5ec88df19980037bec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9da220c74cd6c63e796a62d0eaff56f4fbf12f9ef6c6ee5ec88df19980037bec", kill_on_drop: false }`
[INFO] [stdout] 9da220c74cd6c63e796a62d0eaff56f4fbf12f9ef6c6ee5ec88df19980037bec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 0006c7dd1ac842ea033b4e0e2dc8f3ad544d04add0f502ecb23946ea4e623ce1
[INFO] running `Command { std: "docker" "start" "-a" "0006c7dd1ac842ea033b4e0e2dc8f3ad544d04add0f502ecb23946ea4e623ce1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-euler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.75s
[INFO] running `Command { std: "docker" "inspect" "0006c7dd1ac842ea033b4e0e2dc8f3ad544d04add0f502ecb23946ea4e623ce1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0006c7dd1ac842ea033b4e0e2dc8f3ad544d04add0f502ecb23946ea4e623ce1", kill_on_drop: false }`
[INFO] [stdout] 0006c7dd1ac842ea033b4e0e2dc8f3ad544d04add0f502ecb23946ea4e623ce1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] e8c87352ba34ef4c65485804f5a5ad32555f2a4d4feaaa685e965ed2845b051e
[INFO] running `Command { std: "docker" "start" "-a" "e8c87352ba34ef4c65485804f5a5ad32555f2a4d4feaaa685e965ed2845b051e", 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] [stderr]    Compiling rust-euler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.83s
[INFO] running `Command { std: "docker" "inspect" "e8c87352ba34ef4c65485804f5a5ad32555f2a4d4feaaa685e965ed2845b051e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8c87352ba34ef4c65485804f5a5ad32555f2a4d4feaaa685e965ed2845b051e", kill_on_drop: false }`
[INFO] [stdout] e8c87352ba34ef4c65485804f5a5ad32555f2a4d4feaaa685e965ed2845b051e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-52/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] 7187080fd5554f2013e07ca1351617e5a8184a199ad754a7cd9f928d39adb3ca
[INFO] running `Command { std: "docker" "start" "-a" "7187080fd5554f2013e07ca1351617e5a8184a199ad754a7cd9f928d39adb3ca", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.92s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_euler-ad62929db4dcab3a)
[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" "7187080fd5554f2013e07ca1351617e5a8184a199ad754a7cd9f928d39adb3ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7187080fd5554f2013e07ca1351617e5a8184a199ad754a7cd9f928d39adb3ca", kill_on_drop: false }`
[INFO] [stdout] 7187080fd5554f2013e07ca1351617e5a8184a199ad754a7cd9f928d39adb3ca