[INFO] cloning repository https://github.com/TwistedDNA/rust_graph
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TwistedDNA/rust_graph" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTwistedDNA%2Frust_graph", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTwistedDNA%2Frust_graph'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f3f90b80ae8f24c19d6d567a13a38a366094d21d
[INFO] testing TwistedDNA/rust_graph against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTwistedDNA%2Frust_graph" "/workspace/builds/worker-39/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-39/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TwistedDNA/rust_graph 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/TwistedDNA/rust_graph
[INFO] finished tweaking git repo https://github.com/TwistedDNA/rust_graph
[INFO] tweaked toml for git repo https://github.com/TwistedDNA/rust_graph written to /workspace/builds/worker-39/source/Cargo.toml
[INFO] crate git repo https://github.com/TwistedDNA/rust_graph 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-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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] 4580d231c11243987a033687f04a9bf8ef047bacbd3370a1cf2362ef48b8e421
[INFO] running `Command { std: "docker" "start" "-a" "4580d231c11243987a033687f04a9bf8ef047bacbd3370a1cf2362ef48b8e421", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4580d231c11243987a033687f04a9bf8ef047bacbd3370a1cf2362ef48b8e421", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4580d231c11243987a033687f04a9bf8ef047bacbd3370a1cf2362ef48b8e421", kill_on_drop: false }`
[INFO] [stdout] 4580d231c11243987a033687f04a9bf8ef047bacbd3370a1cf2362ef48b8e421
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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] 158ac71495929b3aa07114fcc85905caeb7f0fa40d1be4a892c0f12b0d99a440
[INFO] running `Command { std: "docker" "start" "-a" "158ac71495929b3aa07114fcc85905caeb7f0fa40d1be4a892c0f12b0d99a440", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling bfs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `Command { std: "docker" "inspect" "158ac71495929b3aa07114fcc85905caeb7f0fa40d1be4a892c0f12b0d99a440", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "158ac71495929b3aa07114fcc85905caeb7f0fa40d1be4a892c0f12b0d99a440", kill_on_drop: false }`
[INFO] [stdout] 158ac71495929b3aa07114fcc85905caeb7f0fa40d1be4a892c0f12b0d99a440
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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] 974cd0a00e25b9ba5e647a823217508996a6e2d2be8a11f931443574c2805ab9
[INFO] running `Command { std: "docker" "start" "-a" "974cd0a00e25b9ba5e647a823217508996a6e2d2be8a11f931443574c2805ab9", kill_on_drop: false }`
[INFO] [stderr]    Compiling bfs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "974cd0a00e25b9ba5e647a823217508996a6e2d2be8a11f931443574c2805ab9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "974cd0a00e25b9ba5e647a823217508996a6e2d2be8a11f931443574c2805ab9", kill_on_drop: false }`
[INFO] [stdout] 974cd0a00e25b9ba5e647a823217508996a6e2d2be8a11f931443574c2805ab9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-39/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] 488c677fa41ed36c0b530822f5b2a591e069a71c208a151223dbcdd37417bbd0
[INFO] running `Command { std: "docker" "start" "-a" "488c677fa41ed36c0b530822f5b2a591e069a71c208a151223dbcdd37417bbd0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.24s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/bfs-cbe8aa7529f3f1c1)
[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" "488c677fa41ed36c0b530822f5b2a591e069a71c208a151223dbcdd37417bbd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "488c677fa41ed36c0b530822f5b2a591e069a71c208a151223dbcdd37417bbd0", kill_on_drop: false }`
[INFO] [stdout] 488c677fa41ed36c0b530822f5b2a591e069a71c208a151223dbcdd37417bbd0