[INFO] fetching crate bulls-and-cows 1.0.17...
[INFO] testing bulls-and-cows-1.0.17 against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] extracting crate bulls-and-cows 1.0.17 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate bulls-and-cows 1.0.17 on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bulls-and-cows 1.0.17
[INFO] finished tweaking crates.io crate bulls-and-cows 1.0.17
[INFO] tweaked toml for crates.io crate bulls-and-cows 1.0.17 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate bulls-and-cows 1.0.17 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded random-integer v1.0.5
[INFO] [stderr]   Downloaded random-pick v1.2.7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ab77d2152019c6b8803fdb1126db71750ffd623361616b16b3a6c7a1e9c4450
[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" "9ab77d2152019c6b8803fdb1126db71750ffd623361616b16b3a6c7a1e9c4450", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ab77d2152019c6b8803fdb1126db71750ffd623361616b16b3a6c7a1e9c4450", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ab77d2152019c6b8803fdb1126db71750ffd623361616b16b3a6c7a1e9c4450", kill_on_drop: false }`
[INFO] [stdout] 9ab77d2152019c6b8803fdb1126db71750ffd623361616b16b3a6c7a1e9c4450
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "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] 7c46f8e2f5f105819b3df8eb9b08afa89f8e0aae98cfaf6c9d797577c2b631ac
[INFO] running `Command { std: "docker" "start" "-a" "7c46f8e2f5f105819b3df8eb9b08afa89f8e0aae98cfaf6c9d797577c2b631ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling memchr v2.3.2
[INFO] [stderr]    Compiling debug-helper v0.3.8
[INFO] [stderr]    Compiling permutohedron v0.2.4
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling aho-corasick v0.7.8
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling regex v1.3.4
[INFO] [stderr]    Compiling random-integer v1.0.5
[INFO] [stderr]    Compiling random-pick v1.2.7
[INFO] [stderr]    Compiling bulls-and-cows v1.0.17 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.93s
[INFO] running `Command { std: "docker" "inspect" "7c46f8e2f5f105819b3df8eb9b08afa89f8e0aae98cfaf6c9d797577c2b631ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c46f8e2f5f105819b3df8eb9b08afa89f8e0aae98cfaf6c9d797577c2b631ac", kill_on_drop: false }`
[INFO] [stdout] 7c46f8e2f5f105819b3df8eb9b08afa89f8e0aae98cfaf6c9d797577c2b631ac
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e76fe67222edee29c0cb8cd8d89d4c54a6a7e297de2d878e6ea6e80da1f8e8e2
[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" "e76fe67222edee29c0cb8cd8d89d4c54a6a7e297de2d878e6ea6e80da1f8e8e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling once_cell v1.4.0
[INFO] [stderr]    Compiling bulls-and-cows v1.0.17 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `Command { std: "docker" "inspect" "e76fe67222edee29c0cb8cd8d89d4c54a6a7e297de2d878e6ea6e80da1f8e8e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e76fe67222edee29c0cb8cd8d89d4c54a6a7e297de2d878e6ea6e80da1f8e8e2", kill_on_drop: false }`
[INFO] [stdout] e76fe67222edee29c0cb8cd8d89d4c54a6a7e297de2d878e6ea6e80da1f8e8e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "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] c2e004428686e6873f040d009fb70079176d42da14d0f56049a188ed555f911b
[INFO] running `Command { std: "docker" "start" "-a" "c2e004428686e6873f040d009fb70079176d42da14d0f56049a188ed555f911b", 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 (/opt/rustwide/target/debug/deps/bulls_and_cows-e3d603b76d9a3414)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bulls-and-cows
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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 1.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c2e004428686e6873f040d009fb70079176d42da14d0f56049a188ed555f911b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2e004428686e6873f040d009fb70079176d42da14d0f56049a188ed555f911b", kill_on_drop: false }`
[INFO] [stdout] c2e004428686e6873f040d009fb70079176d42da14d0f56049a188ed555f911b