[INFO] cloning repository https://github.com/dckc/snakes-ladders
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dckc/snakes-ladders" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdckc%2Fsnakes-ladders", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdckc%2Fsnakes-ladders'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fea15b696ffd3eabcea308a679d6f857a29588f7
[INFO] testing dckc/snakes-ladders against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdckc%2Fsnakes-ladders" "/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/dckc/snakes-ladders 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/dckc/snakes-ladders
[INFO] finished tweaking git repo https://github.com/dckc/snakes-ladders
[INFO] tweaked toml for git repo https://github.com/dckc/snakes-ladders written to /workspace/builds/worker-52/source/Cargo.toml
[INFO] crate git repo https://github.com/dckc/snakes-ladders 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]  Downloading crates ...
[INFO] [stderr]   Downloaded rustc-serialize v0.3.23
[INFO] [stderr]   Downloaded serde v0.9.13
[INFO] [stderr]   Downloaded syn v0.11.10
[INFO] [stderr]   Downloaded serde_derive v0.9.13
[INFO] [stderr]   Downloaded cargo_metadata v0.1.2
[INFO] [stderr]   Downloaded regex-syntax v0.4.0
[INFO] [stderr]   Downloaded clippy_lints v0.0.123
[INFO] [stderr]   Downloaded clippy v0.0.123
[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] 2b2bf77a8e551e1631608d737c98805c1a0cfa178fe88d10caacb77d8c5b1375
[INFO] running `Command { std: "docker" "start" "-a" "2b2bf77a8e551e1631608d737c98805c1a0cfa178fe88d10caacb77d8c5b1375", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b2bf77a8e551e1631608d737c98805c1a0cfa178fe88d10caacb77d8c5b1375", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b2bf77a8e551e1631608d737c98805c1a0cfa178fe88d10caacb77d8c5b1375", kill_on_drop: false }`
[INFO] [stdout] 2b2bf77a8e551e1631608d737c98805c1a0cfa178fe88d10caacb77d8c5b1375
[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] f89d3a89b8eab1737ae9975da3af80b4a479074d6eebc483c628b8161c93790c
[INFO] running `Command { std: "docker" "start" "-a" "f89d3a89b8eab1737ae9975da3af80b4a479074d6eebc483c628b8161c93790c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling assign4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.78s
[INFO] running `Command { std: "docker" "inspect" "f89d3a89b8eab1737ae9975da3af80b4a479074d6eebc483c628b8161c93790c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f89d3a89b8eab1737ae9975da3af80b4a479074d6eebc483c628b8161c93790c", kill_on_drop: false }`
[INFO] [stdout] f89d3a89b8eab1737ae9975da3af80b4a479074d6eebc483c628b8161c93790c
[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] 435d8f5a2e273283aa984f6b267fa99247a1bc3c64b3ed82f4a0485d390e8954
[INFO] running `Command { std: "docker" "start" "-a" "435d8f5a2e273283aa984f6b267fa99247a1bc3c64b3ed82f4a0485d390e8954", kill_on_drop: false }`
[INFO] [stderr]    Compiling assign4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "435d8f5a2e273283aa984f6b267fa99247a1bc3c64b3ed82f4a0485d390e8954", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "435d8f5a2e273283aa984f6b267fa99247a1bc3c64b3ed82f4a0485d390e8954", kill_on_drop: false }`
[INFO] [stdout] 435d8f5a2e273283aa984f6b267fa99247a1bc3c64b3ed82f4a0485d390e8954
[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] c92e3a888ce79e643ac20b4f904a626fd52e828fa8285437ea22affe3ba069c7
[INFO] running `Command { std: "docker" "start" "-a" "c92e3a888ce79e643ac20b4f904a626fd52e828fa8285437ea22affe3ba069c7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/assign4-416cce5fe14497ab)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test test::command_parse1 ... ok
[INFO] [stdout] test test::parse_sample_input ... ok
[INFO] [stdout] test test::make_sample_output ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c92e3a888ce79e643ac20b4f904a626fd52e828fa8285437ea22affe3ba069c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c92e3a888ce79e643ac20b4f904a626fd52e828fa8285437ea22affe3ba069c7", kill_on_drop: false }`
[INFO] [stdout] c92e3a888ce79e643ac20b4f904a626fd52e828fa8285437ea22affe3ba069c7