[INFO] fetching crate luby 0.0.1...
[INFO] testing luby-0.0.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate luby 0.0.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate luby 0.0.1 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 luby 0.0.1
[INFO] finished tweaking crates.io crate luby 0.0.1
[INFO] tweaked toml for crates.io crate luby 0.0.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[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-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 5d5cbd3883b899ce2279cce07733fffa74963ea8036deec0f00da8c31ecb36d8
[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" "5d5cbd3883b899ce2279cce07733fffa74963ea8036deec0f00da8c31ecb36d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d5cbd3883b899ce2279cce07733fffa74963ea8036deec0f00da8c31ecb36d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d5cbd3883b899ce2279cce07733fffa74963ea8036deec0f00da8c31ecb36d8", kill_on_drop: false }`
[INFO] [stdout] 5d5cbd3883b899ce2279cce07733fffa74963ea8036deec0f00da8c31ecb36d8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 3cf428144b3d604941a14b417f78436fb14f17a9bf28de4957f94fbd0aeca06e
[INFO] running `Command { std: "docker" "start" "-a" "3cf428144b3d604941a14b417f78436fb14f17a9bf28de4957f94fbd0aeca06e", kill_on_drop: false }`
[INFO] [stderr]    Compiling luby v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "3cf428144b3d604941a14b417f78436fb14f17a9bf28de4957f94fbd0aeca06e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cf428144b3d604941a14b417f78436fb14f17a9bf28de4957f94fbd0aeca06e", kill_on_drop: false }`
[INFO] [stdout] 3cf428144b3d604941a14b417f78436fb14f17a9bf28de4957f94fbd0aeca06e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 78efcac745234780a1522171f13abf7f23e1ab128dad34713f2a55298aea7eaf
[INFO] running `Command { std: "docker" "start" "-a" "78efcac745234780a1522171f13abf7f23e1ab128dad34713f2a55298aea7eaf", kill_on_drop: false }`
[INFO] [stderr]    Compiling paste v1.0.4
[INFO] [stderr]    Compiling luby v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.93s
[INFO] running `Command { std: "docker" "inspect" "78efcac745234780a1522171f13abf7f23e1ab128dad34713f2a55298aea7eaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78efcac745234780a1522171f13abf7f23e1ab128dad34713f2a55298aea7eaf", kill_on_drop: false }`
[INFO] [stdout] 78efcac745234780a1522171f13abf7f23e1ab128dad34713f2a55298aea7eaf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 06a91fdbb43ceb191524d651be2be9c76951f49ac7f5c45ada74a52d49ed5083
[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" "06a91fdbb43ceb191524d651be2be9c76951f49ac7f5c45ada74a52d49ed5083", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/luby-6e6dcc47bd88cd86
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test tests::exhaust_i8 ... ok
[INFO] [stdout] test tests::exhaust_u8 ... ok
[INFO] [stdout] test tests::prefix_i64 ... ok
[INFO] [stdout] test tests::prefix_u16 ... ok
[INFO] [stdout] test tests::exhaust_i16 ... ok
[INFO] [stdout] test tests::prefix_i8 ... ok
[INFO] [stdout] test tests::prefix_i32 ... ok
[INFO] [stdout] test tests::prefix_i16 ... ok
[INFO] [stdout] test tests::prefix_u32 ... ok
[INFO] [stdout] test tests::exhaust_u16 ... ok
[INFO] [stdout] test tests::prefix_u8 ... ok
[INFO] [stdout] test tests::prefix_u64 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests luby
[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] running `Command { std: "docker" "inspect" "06a91fdbb43ceb191524d651be2be9c76951f49ac7f5c45ada74a52d49ed5083", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06a91fdbb43ceb191524d651be2be9c76951f49ac7f5c45ada74a52d49ed5083", kill_on_drop: false }`
[INFO] [stdout] 06a91fdbb43ceb191524d651be2be9c76951f49ac7f5c45ada74a52d49ed5083