[INFO] fetching crate twobit 0.1.1...
[INFO] testing twobit-0.1.1 against 1.55.0 for beta-1.56-1
[INFO] extracting crate twobit 0.1.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate twobit 0.1.1 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c72c79e5ee1867c334c4852404d4aa5a794ce6098392c34c01cb985c1ce8f545
[INFO] running `Command { std: "docker" "start" "-a" "c72c79e5ee1867c334c4852404d4aa5a794ce6098392c34c01cb985c1ce8f545", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c72c79e5ee1867c334c4852404d4aa5a794ce6098392c34c01cb985c1ce8f545", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c72c79e5ee1867c334c4852404d4aa5a794ce6098392c34c01cb985c1ce8f545", kill_on_drop: false }`
[INFO] [stdout] c72c79e5ee1867c334c4852404d4aa5a794ce6098392c34c01cb985c1ce8f545
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10a30578809273f1e88ec0787af82562f490e2d8355eb9251b368b26257778a5
[INFO] running `Command { std: "docker" "start" "-a" "10a30578809273f1e88ec0787af82562f490e2d8355eb9251b368b26257778a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling twobit v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "10a30578809273f1e88ec0787af82562f490e2d8355eb9251b368b26257778a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10a30578809273f1e88ec0787af82562f490e2d8355eb9251b368b26257778a5", kill_on_drop: false }`
[INFO] [stdout] 10a30578809273f1e88ec0787af82562f490e2d8355eb9251b368b26257778a5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f54a85a735c4381c24cfb92a9d546269b8c6b3833b656ac366e9c10d92feb250
[INFO] running `Command { std: "docker" "start" "-a" "f54a85a735c4381c24cfb92a9d546269b8c6b3833b656ac366e9c10d92feb250", kill_on_drop: false }`
[INFO] [stderr]    Compiling twobit v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.33s
[INFO] running `Command { std: "docker" "inspect" "f54a85a735c4381c24cfb92a9d546269b8c6b3833b656ac366e9c10d92feb250", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f54a85a735c4381c24cfb92a9d546269b8c6b3833b656ac366e9c10d92feb250", kill_on_drop: false }`
[INFO] [stdout] f54a85a735c4381c24cfb92a9d546269b8c6b3833b656ac366e9c10d92feb250
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 636b5cbbc2b570810ac633445813351266b50fe3a5ee4052419e2cab5c41d026
[INFO] running `Command { std: "docker" "start" "-a" "636b5cbbc2b570810ac633445813351266b50fe3a5ee4052419e2cab5c41d026", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.21s
[INFO] [stdout] running 10 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/twobit-b8b7d4865d36b11d)
[INFO] [stdout] test block::tests::test_overlap ... ok
[INFO] [stdout] test tests::test_info ... ok
[INFO] [stdout] test value_reader::tests::test_slice_to_field ... ok
[INFO] [stdout] test tests::test_chroms ... ok
[INFO] [stdout] test tests::test_bases ... ok
[INFO] [stdout] test tests::test_full_sequence ... ok
[INFO] [stdout] test tests::test_hard_masked_blocks ... ok
[INFO] [stdout] test tests::test_full_bases ... ok
[INFO] [stdout] test tests::test_sequence ... ok
[INFO] [stdout] test tests::test_soft_masked_blocks ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests twobit
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/lib.rs - TwoBitFile (line 42) ... ok
[INFO] [stdout] test src/lib.rs - TwoBitFile (line 56) ... ok
[INFO] [stdout] test src/lib.rs - TwoBitFile (line 66) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.58s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "636b5cbbc2b570810ac633445813351266b50fe3a5ee4052419e2cab5c41d026", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "636b5cbbc2b570810ac633445813351266b50fe3a5ee4052419e2cab5c41d026", kill_on_drop: false }`
[INFO] [stdout] 636b5cbbc2b570810ac633445813351266b50fe3a5ee4052419e2cab5c41d026