[INFO] fetching crate dsc 0.1.1...
[INFO] testing dsc-0.1.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate dsc 0.1.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate dsc 0.1.1 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dsc 0.1.1
[INFO] finished tweaking crates.io crate dsc 0.1.1
[INFO] tweaked toml for crates.io crate dsc 0.1.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate dsc 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 71c9926d90465cdca1b67c1513fd5d0aeefa866a24902718f85f74c0c4132463
[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" "71c9926d90465cdca1b67c1513fd5d0aeefa866a24902718f85f74c0c4132463", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "71c9926d90465cdca1b67c1513fd5d0aeefa866a24902718f85f74c0c4132463", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71c9926d90465cdca1b67c1513fd5d0aeefa866a24902718f85f74c0c4132463", kill_on_drop: false }`
[INFO] [stdout] 71c9926d90465cdca1b67c1513fd5d0aeefa866a24902718f85f74c0c4132463
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 98701365e39c847404bdf6bc16c8d5db7bb6a0cbce549162ff48b465dcd91fe1
[INFO] running `Command { std: "docker" "start" "-a" "98701365e39c847404bdf6bc16c8d5db7bb6a0cbce549162ff48b465dcd91fe1", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling syn v1.0.56
[INFO] [stderr]    Compiling regex-syntax v0.6.21
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling anyhow v1.0.37
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling number_prefix v0.3.0
[INFO] [stderr]    Compiling seahash v3.0.7
[INFO] [stderr]    Compiling throttle v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling fasthash-sys v0.3.2
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling terminal_size v0.1.15
[INFO] [stderr]    Compiling term_size v0.3.2
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling walkdir v2.3.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling uuid v0.8.1
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling crossbeam v0.8.0
[INFO] [stderr]    Compiling xoroshiro128 v0.3.0
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling fasthash v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling console v0.14.0
[INFO] [stderr]    Compiling format_num v0.1.0
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling indicatif v0.15.0
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling bstr v0.2.14
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling globset v0.4.6
[INFO] [stderr]    Compiling csv v1.1.5
[INFO] [stderr]    Compiling ignore v0.4.17
[INFO] [stderr]    Compiling dsc v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 24s
[INFO] running `Command { std: "docker" "inspect" "98701365e39c847404bdf6bc16c8d5db7bb6a0cbce549162ff48b465dcd91fe1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98701365e39c847404bdf6bc16c8d5db7bb6a0cbce549162ff48b465dcd91fe1", kill_on_drop: false }`
[INFO] [stdout] 98701365e39c847404bdf6bc16c8d5db7bb6a0cbce549162ff48b465dcd91fe1
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 2cc7fcfe2aacad9191646521e25648aa51294cc90473fbe03ed53728dd685636
[INFO] running `Command { std: "docker" "start" "-a" "2cc7fcfe2aacad9191646521e25648aa51294cc90473fbe03ed53728dd685636", kill_on_drop: false }`
[INFO] [stderr]    Compiling dsc v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.18s
[INFO] running `Command { std: "docker" "inspect" "2cc7fcfe2aacad9191646521e25648aa51294cc90473fbe03ed53728dd685636", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cc7fcfe2aacad9191646521e25648aa51294cc90473fbe03ed53728dd685636", kill_on_drop: false }`
[INFO] [stdout] 2cc7fcfe2aacad9191646521e25648aa51294cc90473fbe03ed53728dd685636
[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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 6cd08f4b6b550bb2bd38a7a53b3695be1434ea18a9e5de2088786e0e5b6e4108
[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" "6cd08f4b6b550bb2bd38a7a53b3695be1434ea18a9e5de2088786e0e5b6e4108", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/dsc-c6e5e80ed79888d4
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test candidate_selection::hashing::hash_instructions::tests::correctly_calculates_block_limited_work_size ... ok
[INFO] [stdout] test candidate_selection::hashing::hash_instructions::tests::correctly_calculates_limited_work_size ... ok
[INFO] [stdout] test candidate_selection::hashing::hashing_strategy::tests::complete_strategy ... ok
[INFO] [stdout] test candidate_selection::hashing::hashing_strategy::tests::sampling_strategy_seek_back_to_end ... ok
[INFO] [stdout] test concurrency::select::tests::select_recv ... ok
[INFO] [stdout] test concurrency::select::tests::select_send ... ok
[INFO] [stdout] test candidate_selection::hashing::hashing_strategy::tests::sampling_strategy_reach_until_end ... ok
[INFO] [stdout] test concurrency::semaphore::tests::test_sem_multi_resource ... ok
[INFO] [stdout] test concurrency::semaphore::tests::test_sem_multi_acquire_release ... ok
[INFO] [stdout] test concurrency::semaphore::tests::test_sem_runtime_friendly_blocking ... ok
[INFO] [stdout] test concurrency::semaphore::tests::test_sem_as_mutex ... ok
[INFO] [stdout] test concurrency::semaphore::tests::test_sem_basic ... ok
[INFO] [stdout] test concurrency::semaphore::tests::test_sem_acquire_release ... ok
[INFO] [stdout] test concurrency::semaphore::tests::test_sem_as_cvar ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6cd08f4b6b550bb2bd38a7a53b3695be1434ea18a9e5de2088786e0e5b6e4108", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cd08f4b6b550bb2bd38a7a53b3695be1434ea18a9e5de2088786e0e5b6e4108", kill_on_drop: false }`
[INFO] [stdout] 6cd08f4b6b550bb2bd38a7a53b3695be1434ea18a9e5de2088786e0e5b6e4108