[INFO] fetching crate bulls-and-cows 1.0.20...
[INFO] testing bulls-and-cows-1.0.20 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate bulls-and-cows 1.0.20 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate bulls-and-cows 1.0.20 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bulls-and-cows 1.0.20
[INFO] finished tweaking crates.io crate bulls-and-cows 1.0.20
[INFO] tweaked toml for crates.io crate bulls-and-cows 1.0.20 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate bulls-and-cows 1.0.20 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 75f50dba19ec159d5d73926fcab03c1c409aabf86bb1ad223f03d6950d2d7b17
[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" "75f50dba19ec159d5d73926fcab03c1c409aabf86bb1ad223f03d6950d2d7b17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75f50dba19ec159d5d73926fcab03c1c409aabf86bb1ad223f03d6950d2d7b17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75f50dba19ec159d5d73926fcab03c1c409aabf86bb1ad223f03d6950d2d7b17", kill_on_drop: false }`
[INFO] [stdout] 75f50dba19ec159d5d73926fcab03c1c409aabf86bb1ad223f03d6950d2d7b17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "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] 15d0f61639f0cf438092542de58f406f589ddac3dab7dd63e8d0867a9918e92a
[INFO] running `Command { std: "docker" "start" "-a" "15d0f61639f0cf438092542de58f406f589ddac3dab7dd63e8d0867a9918e92a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling debug-helper v0.3.12
[INFO] [stderr]    Compiling permutohedron v0.2.4
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling random-number-macro-impl v0.1.5
[INFO] [stderr]    Compiling random-number v0.1.6
[INFO] [stderr]    Compiling random-pick v1.2.14
[INFO] [stderr]    Compiling bulls-and-cows v1.0.20 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.20s
[INFO] running `Command { std: "docker" "inspect" "15d0f61639f0cf438092542de58f406f589ddac3dab7dd63e8d0867a9918e92a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15d0f61639f0cf438092542de58f406f589ddac3dab7dd63e8d0867a9918e92a", kill_on_drop: false }`
[INFO] [stdout] 15d0f61639f0cf438092542de58f406f589ddac3dab7dd63e8d0867a9918e92a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--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] 4423f0d02d07d15cf30aa6129ce37bc7f10827640e8fafee23b6e1309f7606ba
[INFO] running `Command { std: "docker" "start" "-a" "4423f0d02d07d15cf30aa6129ce37bc7f10827640e8fafee23b6e1309f7606ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling bulls-and-cows v1.0.20 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.02s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/bulls_and_cows-fdfa353ec449e243)
[INFO] running `Command { std: "docker" "inspect" "4423f0d02d07d15cf30aa6129ce37bc7f10827640e8fafee23b6e1309f7606ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4423f0d02d07d15cf30aa6129ce37bc7f10827640e8fafee23b6e1309f7606ba", kill_on_drop: false }`
[INFO] [stdout] 4423f0d02d07d15cf30aa6129ce37bc7f10827640e8fafee23b6e1309f7606ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b525fb80776444a46b5e9eb3807bcf82cbb87885c6932a65370525954988bd40
[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" "b525fb80776444a46b5e9eb3807bcf82cbb87885c6932a65370525954988bd40", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/bulls_and_cows-fdfa353ec449e243)
[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] [stderr]    Doc-tests bulls-and-cows
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 13) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.88s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b525fb80776444a46b5e9eb3807bcf82cbb87885c6932a65370525954988bd40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b525fb80776444a46b5e9eb3807bcf82cbb87885c6932a65370525954988bd40", kill_on_drop: false }`
[INFO] [stdout] b525fb80776444a46b5e9eb3807bcf82cbb87885c6932a65370525954988bd40