[INFO] fetching crate bgzf_rust_reader 0.2.1...
[INFO] testing bgzf_rust_reader-0.2.1 against 1.59.0 for beta-1.60-1
[INFO] extracting crate bgzf_rust_reader 0.2.1 into /workspace/builds/worker-73/source
[INFO] validating manifest of crates.io crate bgzf_rust_reader 0.2.1 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bgzf_rust_reader 0.2.1
[INFO] finished tweaking crates.io crate bgzf_rust_reader 0.2.1
[INFO] tweaked toml for crates.io crate bgzf_rust_reader 0.2.1 written to /workspace/builds/worker-73/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--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-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a2931c2a44d98328ca3868219e769364001300d6922964a0a20fea5558df676
[INFO] running `Command { std: "docker" "start" "-a" "9a2931c2a44d98328ca3868219e769364001300d6922964a0a20fea5558df676", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a2931c2a44d98328ca3868219e769364001300d6922964a0a20fea5558df676", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a2931c2a44d98328ca3868219e769364001300d6922964a0a20fea5558df676", kill_on_drop: false }`
[INFO] [stdout] 9a2931c2a44d98328ca3868219e769364001300d6922964a0a20fea5558df676
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c27b43befc75b32bb33e70a07864e39313a12b43f7c7a2d6f6368c70317f08a
[INFO] running `Command { std: "docker" "start" "-a" "3c27b43befc75b32bb33e70a07864e39313a12b43f7c7a2d6f6368c70317f08a", kill_on_drop: false }`
[INFO] [stderr]    Compiling byteorder v0.5.3
[INFO] [stderr]    Compiling libdeflate-sys v0.7.5
[INFO] [stderr]    Compiling positioned-io v0.2.2
[INFO] [stderr]    Compiling libdeflater v0.7.5
[INFO] [stderr]    Compiling bgzf_rust_reader v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.28s
[INFO] running `Command { std: "docker" "inspect" "3c27b43befc75b32bb33e70a07864e39313a12b43f7c7a2d6f6368c70317f08a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c27b43befc75b32bb33e70a07864e39313a12b43f7c7a2d6f6368c70317f08a", kill_on_drop: false }`
[INFO] [stdout] 3c27b43befc75b32bb33e70a07864e39313a12b43f7c7a2d6f6368c70317f08a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4acb8b34f2517550acfd8d5ef832569ec456c57a606d7c0a005bb553935954f
[INFO] running `Command { std: "docker" "start" "-a" "f4acb8b34f2517550acfd8d5ef832569ec456c57a606d7c0a005bb553935954f", kill_on_drop: false }`
[INFO] [stderr]    Compiling bgzf_rust_reader v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/integration_test.rs:22:3
[INFO] [stdout]    |
[INFO] [stdout] 22 |   reader.read_to(&mut test_buffer);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/lib.rs:426:11
[INFO] [stdout]     |
[INFO] [stdout] 426 |       Err(e) => {
[INFO] [stdout]     |           ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.55s
[INFO] running `Command { std: "docker" "inspect" "f4acb8b34f2517550acfd8d5ef832569ec456c57a606d7c0a005bb553935954f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4acb8b34f2517550acfd8d5ef832569ec456c57a606d7c0a005bb553935954f", kill_on_drop: false }`
[INFO] [stdout] f4acb8b34f2517550acfd8d5ef832569ec456c57a606d7c0a005bb553935954f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-73/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 313b5b5b7685a1e5b643ee7022d726746e7e6fdafbadab0db0038c9103546a4d
[INFO] running `Command { std: "docker" "start" "-a" "313b5b5b7685a1e5b643ee7022d726746e7e6fdafbadab0db0038c9103546a4d", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/lib.rs:426:11
[INFO] [stderr]     |
[INFO] [stderr] 426 |       Err(e) => {
[INFO] [stderr]     |           ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `bgzf_rust_reader` (lib test) generated 1 warning
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> tests/integration_test.rs:22:3
[INFO] [stderr]    |
[INFO] [stderr] 22 |   reader.read_to(&mut test_buffer);
[INFO] [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `bgzf_rust_reader` (test "integration_test") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/bgzf_rust_reader-a54d14ac5ea54988)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::test_bgzf_read_method ... ok
[INFO] [stdout] test tests::test_bgzf_reader_new_func ... ok
[INFO] [stdout] test tests::test_cache ... ok
[INFO] [stdout] test tests::test_read_block_func ... ok
[INFO] [stdout] test tests::test_read_to ... ok
[INFO] [stdout] test tests::test_seek_method ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration_test.rs (/opt/rustwide/target/debug/deps/integration_test-ca44e28e33ed9a90)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_random_access ... ok
[INFO] [stdout] test test_total_uncompressed_length ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bgzf_rust_reader
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - BgzfReader::read_to (line 125) ... ok
[INFO] [stdout] test src/lib.rs - BgzfReader (line 55) ... ok
[INFO] [stdout] test src/lib.rs - BgzfReader::seek (line 104) ... ok
[INFO] [stdout] test src/lib.rs - BgzfReader::read (line 147) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.46s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "313b5b5b7685a1e5b643ee7022d726746e7e6fdafbadab0db0038c9103546a4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "313b5b5b7685a1e5b643ee7022d726746e7e6fdafbadab0db0038c9103546a4d", kill_on_drop: false }`
[INFO] [stdout] 313b5b5b7685a1e5b643ee7022d726746e7e6fdafbadab0db0038c9103546a4d