[INFO] fetching crate bulls-and-cows 1.0.16...
[INFO] testing bulls-and-cows-1.0.16 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate bulls-and-cows 1.0.16 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate bulls-and-cows 1.0.16 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bulls-and-cows 1.0.16
[INFO] finished tweaking crates.io crate bulls-and-cows 1.0.16
[INFO] tweaked toml for crates.io crate bulls-and-cows 1.0.16 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate bulls-and-cows 1.0.16 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2d0add300b341e4ec1cabb7465a6a3cffa132d9d958c978772f7bc38c0d148b6
[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" "2d0add300b341e4ec1cabb7465a6a3cffa132d9d958c978772f7bc38c0d148b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d0add300b341e4ec1cabb7465a6a3cffa132d9d958c978772f7bc38c0d148b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d0add300b341e4ec1cabb7465a6a3cffa132d9d958c978772f7bc38c0d148b6", kill_on_drop: false }`
[INFO] [stdout] 2d0add300b341e4ec1cabb7465a6a3cffa132d9d958c978772f7bc38c0d148b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 474a5a8a329b9e3f4d39fe649032fab468aa4eb0999f1b8037486dd41d2b738b
[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" "474a5a8a329b9e3f4d39fe649032fab468aa4eb0999f1b8037486dd41d2b738b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling memchr v2.3.2
[INFO] [stderr]    Compiling regex-syntax v0.6.14
[INFO] [stderr]    Compiling permutohedron v0.2.4
[INFO] [stderr]    Compiling debug-helper v0.3.8
[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 random-integer v1.0.5
[INFO] [stderr]    Compiling regex v1.3.4
[INFO] [stderr]    Compiling random-pick v1.2.7
[INFO] [stderr]    Compiling bulls-and-cows v1.0.16 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.31s
[INFO] running `Command { std: "docker" "inspect" "474a5a8a329b9e3f4d39fe649032fab468aa4eb0999f1b8037486dd41d2b738b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "474a5a8a329b9e3f4d39fe649032fab468aa4eb0999f1b8037486dd41d2b738b", kill_on_drop: false }`
[INFO] [stdout] 474a5a8a329b9e3f4d39fe649032fab468aa4eb0999f1b8037486dd41d2b738b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 89c1774cfa0d93054f6d6acda9f107c90277a60a937cb8eb993d05d72246a476
[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" "89c1774cfa0d93054f6d6acda9f107c90277a60a937cb8eb993d05d72246a476", kill_on_drop: false }`
[INFO] [stderr]    Compiling bulls-and-cows v1.0.16 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "89c1774cfa0d93054f6d6acda9f107c90277a60a937cb8eb993d05d72246a476", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89c1774cfa0d93054f6d6acda9f107c90277a60a937cb8eb993d05d72246a476", kill_on_drop: false }`
[INFO] [stdout] 89c1774cfa0d93054f6d6acda9f107c90277a60a937cb8eb993d05d72246a476
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 50460a2f6422fc814b733cf54e9bc749d504405dae06e75c05eafe64d62bdff0
[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" "50460a2f6422fc814b733cf54e9bc749d504405dae06e75c05eafe64d62bdff0", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/bulls_and_cows-7570e152c086b16e
[INFO] [stderr]    Doc-tests bulls-and-cows
[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
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "50460a2f6422fc814b733cf54e9bc749d504405dae06e75c05eafe64d62bdff0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50460a2f6422fc814b733cf54e9bc749d504405dae06e75c05eafe64d62bdff0", kill_on_drop: false }`
[INFO] [stdout] 50460a2f6422fc814b733cf54e9bc749d504405dae06e75c05eafe64d62bdff0