[INFO] fetching crate twobit 0.1.1...
[INFO] testing twobit-0.1.1 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate twobit 0.1.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate twobit 0.1.1 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate twobit 0.1.1
[INFO] finished tweaking crates.io crate twobit 0.1.1
[INFO] tweaked toml for crates.io crate twobit 0.1.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", 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] d94327484c0657375f2e2d1b25151cea12e8a0bdc9bbe365780cde24e4b08a92
[INFO] running `Command { std: "docker" "start" "-a" "d94327484c0657375f2e2d1b25151cea12e8a0bdc9bbe365780cde24e4b08a92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d94327484c0657375f2e2d1b25151cea12e8a0bdc9bbe365780cde24e4b08a92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d94327484c0657375f2e2d1b25151cea12e8a0bdc9bbe365780cde24e4b08a92", kill_on_drop: false }`
[INFO] [stdout] d94327484c0657375f2e2d1b25151cea12e8a0bdc9bbe365780cde24e4b08a92
[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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 857897e57347058f6150213a6beb0cccc34deb743fd5828f617e08d09ec95d05
[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" "857897e57347058f6150213a6beb0cccc34deb743fd5828f617e08d09ec95d05", kill_on_drop: false }`
[INFO] [stderr]    Compiling twobit v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `twobit_version`
[INFO] [stdout]   --> src/value_reader.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     twobit_version: Field,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `Command { std: "docker" "inspect" "857897e57347058f6150213a6beb0cccc34deb743fd5828f617e08d09ec95d05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "857897e57347058f6150213a6beb0cccc34deb743fd5828f617e08d09ec95d05", kill_on_drop: false }`
[INFO] [stdout] 857897e57347058f6150213a6beb0cccc34deb743fd5828f617e08d09ec95d05
[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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e42deb896e23edf52bfdf02039409dcfd489ecd940683a37bab2f4eed1a56edf
[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" "e42deb896e23edf52bfdf02039409dcfd489ecd940683a37bab2f4eed1a56edf", kill_on_drop: false }`
[INFO] [stdout] warning: field is never read: `twobit_version`
[INFO] [stdout]   --> src/value_reader.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     twobit_version: Field,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling twobit v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `twobit_version`
[INFO] [stdout]   --> src/value_reader.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     twobit_version: Field,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.91s
[INFO] running `Command { std: "docker" "inspect" "e42deb896e23edf52bfdf02039409dcfd489ecd940683a37bab2f4eed1a56edf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e42deb896e23edf52bfdf02039409dcfd489ecd940683a37bab2f4eed1a56edf", kill_on_drop: false }`
[INFO] [stdout] e42deb896e23edf52bfdf02039409dcfd489ecd940683a37bab2f4eed1a56edf
[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" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 46f72b4a17133616b40ecacb254164918c090620a322737ff4ce3885defb58e9
[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" "46f72b4a17133616b40ecacb254164918c090620a322737ff4ce3885defb58e9", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: field is never read: `twobit_version`
[INFO] [stdout] running 10 tests
[INFO] [stderr]   --> src/value_reader.rs:18:5
[INFO] [stdout] test block::tests::test_overlap ... ok
[INFO] [stderr]    |
[INFO] [stdout] test tests::test_chroms ... ok
[INFO] [stderr] 18 |     twobit_version: Field,
[INFO] [stdout] test tests::test_bases ... ok
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] test tests::test_full_sequence ... ok
[INFO] [stderr]    |
[INFO] [stdout] test tests::test_hard_masked_blocks ... ok
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] test tests::test_soft_masked_blocks ... ok
[INFO] [stderr] 
[INFO] [stdout] test value_reader::tests::test_slice_to_field ... ok
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stdout] test tests::test_full_bases ... ok
[INFO] [stderr] 
[INFO] [stdout] test tests::test_info ... ok
[INFO] [stderr] warning: field is never read: `twobit_version`
[INFO] [stdout] test tests::test_sequence ... ok
[INFO] [stderr]   --> src/value_reader.rs:18:5
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stderr] 18 |     twobit_version: Field,
[INFO] [stdout] 
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/twobit-46f252948b8a7fca)
[INFO] [stderr]    Doc-tests twobit
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - TwoBitFile (line 56) ... ok
[INFO] [stdout] test src/lib.rs - TwoBitFile (line 66) ... ok
[INFO] [stdout] test src/lib.rs - TwoBitFile (line 42) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.52s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "46f72b4a17133616b40ecacb254164918c090620a322737ff4ce3885defb58e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46f72b4a17133616b40ecacb254164918c090620a322737ff4ce3885defb58e9", kill_on_drop: false }`
[INFO] [stdout] 46f72b4a17133616b40ecacb254164918c090620a322737ff4ce3885defb58e9