[INFO] cloning repository https://github.com/jvivian/fastq_pair
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jvivian/fastq_pair" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjvivian%2Ffastq_pair", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjvivian%2Ffastq_pair'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a186ad8e1c659523ef9a19ce056b3e64532bcdb1
[INFO] testing jvivian/fastq_pair against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjvivian%2Ffastq_pair" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jvivian/fastq_pair on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jvivian/fastq_pair
[INFO] finished tweaking git repo https://github.com/jvivian/fastq_pair
[INFO] tweaked toml for git repo https://github.com/jvivian/fastq_pair written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/jvivian/fastq_pair already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "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] ad6676567de55a6447a11060dfa1e0b6ba6e4e2ed7569df6784e62e0fc6d658f
[INFO] running `Command { std: "docker" "start" "-a" "ad6676567de55a6447a11060dfa1e0b6ba6e4e2ed7569df6784e62e0fc6d658f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad6676567de55a6447a11060dfa1e0b6ba6e4e2ed7569df6784e62e0fc6d658f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad6676567de55a6447a11060dfa1e0b6ba6e4e2ed7569df6784e62e0fc6d658f", kill_on_drop: false }`
[INFO] [stdout] ad6676567de55a6447a11060dfa1e0b6ba6e4e2ed7569df6784e62e0fc6d658f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "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] dfe9faf6b12891c66a3948390ab3e3f6e8fa48a1303a8ad672e69285d03f0d18
[INFO] running `Command { std: "docker" "start" "-a" "dfe9faf6b12891c66a3948390ab3e3f6e8fa48a1303a8ad672e69285d03f0d18", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling autocfg v0.1.1
[INFO] [stderr]    Compiling failure_derive v0.1.4
[INFO] [stderr]    Compiling rustc-demangle v0.1.11
[INFO] [stderr]    Compiling subprocess v0.1.18
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling failure v0.1.4
[INFO] [stderr]    Compiling fastq_pair v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/seek.rs:59:13
[INFO] [stdout]    |
[INFO] [stdout] 59 |             &mut io.in_read1.seek(SeekFrom::Start(pos1))?;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 59 |             let _ = &mut io.in_read1.seek(SeekFrom::Start(pos1))?;
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/seek.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |         &mut io.in_read1.seek(SeekFrom::Start(pos1))?;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 71 |         let _ = &mut io.in_read1.seek(SeekFrom::Start(pos1))?;
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/seek.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     &mut io.out_single.flush()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 76 |     let _ = &mut io.out_single.flush()?;
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/store_read.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     &mut io.out_single.flush()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let _ = &mut io.out_single.flush()?;
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.58s
[INFO] running `Command { std: "docker" "inspect" "dfe9faf6b12891c66a3948390ab3e3f6e8fa48a1303a8ad672e69285d03f0d18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfe9faf6b12891c66a3948390ab3e3f6e8fa48a1303a8ad672e69285d03f0d18", kill_on_drop: false }`
[INFO] [stdout] dfe9faf6b12891c66a3948390ab3e3f6e8fa48a1303a8ad672e69285d03f0d18
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 898c6a80ecf858712b6d28d095639a9390e9556ed0e7ab5dbf9a9837e25737e2
[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" "898c6a80ecf858712b6d28d095639a9390e9556ed0e7ab5dbf9a9837e25737e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling remove_dir_all v0.5.1
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling tempfile v3.0.5
[INFO] [stderr]    Compiling fastq_pair v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/seek.rs:59:13
[INFO] [stdout]    |
[INFO] [stdout] 59 |             &mut io.in_read1.seek(SeekFrom::Start(pos1))?;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 59 |             let _ = &mut io.in_read1.seek(SeekFrom::Start(pos1))?;
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/seek.rs:71:9
[INFO] [stdout]    |
[INFO] [stdout] 71 |         &mut io.in_read1.seek(SeekFrom::Start(pos1))?;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 71 |         let _ = &mut io.in_read1.seek(SeekFrom::Start(pos1))?;
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/seek.rs:76:5
[INFO] [stdout]    |
[INFO] [stdout] 76 |     &mut io.out_single.flush()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 76 |     let _ = &mut io.out_single.flush()?;
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/store_read.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     &mut io.out_single.flush()?;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let _ = &mut io.out_single.flush()?;
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.14s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/fastq_pair-9f1d366b79c2b877)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/fastq_pair-9155bb829fc02e87)
[INFO] running `Command { std: "docker" "inspect" "898c6a80ecf858712b6d28d095639a9390e9556ed0e7ab5dbf9a9837e25737e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "898c6a80ecf858712b6d28d095639a9390e9556ed0e7ab5dbf9a9837e25737e2", kill_on_drop: false }`
[INFO] [stdout] 898c6a80ecf858712b6d28d095639a9390e9556ed0e7ab5dbf9a9837e25737e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", 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] 6092b4737c7ac40df64d514357319d433236e3166208c5a1d2efcb70bfc25a78
[INFO] running `Command { std: "docker" "start" "-a" "6092b4737c7ac40df64d514357319d433236e3166208c5a1d2efcb70bfc25a78", kill_on_drop: false }`
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> src/seek.rs:59:13
[INFO] [stderr]    |
[INFO] [stderr] 59 |             &mut io.in_read1.seek(SeekFrom::Start(pos1))?;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 59 |             let _ = &mut io.in_read1.seek(SeekFrom::Start(pos1))?;
[INFO] [stderr]    |             +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> src/seek.rs:71:9
[INFO] [stderr]    |
[INFO] [stderr] 71 |         &mut io.in_read1.seek(SeekFrom::Start(pos1))?;
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 71 |         let _ = &mut io.in_read1.seek(SeekFrom::Start(pos1))?;
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> src/seek.rs:76:5
[INFO] [stderr]    |
[INFO] [stderr] 76 |     &mut io.out_single.flush()?;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 76 |     let _ = &mut io.out_single.flush()?;
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> src/store_read.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     &mut io.out_single.flush()?;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let _ = &mut io.out_single.flush()?;
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `fastq_pair` (bin "fastq_pair" test) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/fastq_pair-9f1d366b79c2b877)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::test_parse_header ... ok
[INFO] [stdout] test tests::test_parse_read ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/fastq_pair-9155bb829fc02e87)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test seek::tests::test_index_fastq ... ok
[INFO] [stdout] test seek::tests::test_pair_fastqs ... ok
[INFO] [stdout] test store_read::tests::test_store_read1 ... ok
[INFO] [stdout] test store_read::tests::test_write_pairs ... ok
[INFO] [stdout] test iter_both::tests::test_pair_fastqs ... ok
[INFO] [stdout] test io::tests::test_gzip ... ok
[INFO] [stdout] test io::tests::test_check_input ... ok
[INFO] [stderr]    Doc-tests fastq_pair
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "6092b4737c7ac40df64d514357319d433236e3166208c5a1d2efcb70bfc25a78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6092b4737c7ac40df64d514357319d433236e3166208c5a1d2efcb70bfc25a78", kill_on_drop: false }`
[INFO] [stdout] 6092b4737c7ac40df64d514357319d433236e3166208c5a1d2efcb70bfc25a78