[INFO] cloning repository https://github.com/jutley/rust_chapt2_practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jutley/rust_chapt2_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjutley%2Frust_chapt2_practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjutley%2Frust_chapt2_practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aa822f1c16d5251e2dc2236398de175cf11e347d
[INFO] testing jutley/rust_chapt2_practice 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%2Fjutley%2Frust_chapt2_practice" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jutley/rust_chapt2_practice 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/jutley/rust_chapt2_practice
[INFO] finished tweaking git repo https://github.com/jutley/rust_chapt2_practice
[INFO] tweaked toml for git repo https://github.com/jutley/rust_chapt2_practice written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/jutley/rust_chapt2_practice 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 2b583c7d4ea1c3bec424da888c63747c3051f99e927d3c5d702df1ac06ba0f00
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2b583c7d4ea1c3bec424da888c63747c3051f99e927d3c5d702df1ac06ba0f00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b583c7d4ea1c3bec424da888c63747c3051f99e927d3c5d702df1ac06ba0f00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b583c7d4ea1c3bec424da888c63747c3051f99e927d3c5d702df1ac06ba0f00", kill_on_drop: false }`
[INFO] [stdout] 2b583c7d4ea1c3bec424da888c63747c3051f99e927d3c5d702df1ac06ba0f00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d5b702c3584ac9c0b5a7554e2a468ffdcc9a3ddb79ebc7a378ab8772c43736d2
[INFO] running `Command { std: "docker" "start" "-a" "d5b702c3584ac9c0b5a7554e2a468ffdcc9a3ddb79ebc7a378ab8772c43736d2", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_chapt2_practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "d5b702c3584ac9c0b5a7554e2a468ffdcc9a3ddb79ebc7a378ab8772c43736d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5b702c3584ac9c0b5a7554e2a468ffdcc9a3ddb79ebc7a378ab8772c43736d2", kill_on_drop: false }`
[INFO] [stdout] d5b702c3584ac9c0b5a7554e2a468ffdcc9a3ddb79ebc7a378ab8772c43736d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] 5ae2903a49fd02b8b99f1c1ec5bd2f540a5f24f5902fd36d84e854929e8953e9
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "5ae2903a49fd02b8b99f1c1ec5bd2f540a5f24f5902fd36d84e854929e8953e9", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_chapt2_practice v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "5ae2903a49fd02b8b99f1c1ec5bd2f540a5f24f5902fd36d84e854929e8953e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ae2903a49fd02b8b99f1c1ec5bd2f540a5f24f5902fd36d84e854929e8953e9", kill_on_drop: false }`
[INFO] [stdout] 5ae2903a49fd02b8b99f1c1ec5bd2f540a5f24f5902fd36d84e854929e8953e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] bb86cdfafe046407188f4147a52cfa5a40358bbabca4d6361814626b16db4a1a
[INFO] running `Command { std: "docker" "start" "-a" "bb86cdfafe046407188f4147a52cfa5a40358bbabca4d6361814626b16db4a1a", 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_chapt2_practice-284534418a6678f9)
[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" "bb86cdfafe046407188f4147a52cfa5a40358bbabca4d6361814626b16db4a1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb86cdfafe046407188f4147a52cfa5a40358bbabca4d6361814626b16db4a1a", kill_on_drop: false }`
[INFO] [stdout] bb86cdfafe046407188f4147a52cfa5a40358bbabca4d6361814626b16db4a1a