[INFO] fetching crate noodles-tabix 0.6.0...
[INFO] testing noodles-tabix-0.6.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate noodles-tabix 0.6.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate noodles-tabix 0.6.0 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 noodles-tabix 0.6.0
[INFO] finished tweaking crates.io crate noodles-tabix 0.6.0
[INFO] tweaked toml for crates.io crate noodles-tabix 0.6.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate noodles-tabix 0.6.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 5921e32a80a11989f18db218c38fbe64edb4ec0a6e3a12396f1a733249cb78cd
[INFO] running `Command { std: "docker" "start" "-a" "5921e32a80a11989f18db218c38fbe64edb4ec0a6e3a12396f1a733249cb78cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5921e32a80a11989f18db218c38fbe64edb4ec0a6e3a12396f1a733249cb78cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5921e32a80a11989f18db218c38fbe64edb4ec0a6e3a12396f1a733249cb78cd", kill_on_drop: false }`
[INFO] [stdout] 5921e32a80a11989f18db218c38fbe64edb4ec0a6e3a12396f1a733249cb78cd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 77d43596deec75c41b1761142ae0cb19a3f977186faacc3e05f8f76f7eacb9a3
[INFO] running `Command { std: "docker" "start" "-a" "77d43596deec75c41b1761142ae0cb19a3f977186faacc3e05f8f76f7eacb9a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.99
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling flate2 v1.0.20
[INFO] [stderr]    Compiling noodles-bgzf v0.4.0
[INFO] [stderr]    Compiling noodles-csi v0.3.0
[INFO] [stderr]    Compiling noodles-tabix v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.79s
[INFO] running `Command { std: "docker" "inspect" "77d43596deec75c41b1761142ae0cb19a3f977186faacc3e05f8f76f7eacb9a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77d43596deec75c41b1761142ae0cb19a3f977186faacc3e05f8f76f7eacb9a3", kill_on_drop: false }`
[INFO] [stdout] 77d43596deec75c41b1761142ae0cb19a3f977186faacc3e05f8f76f7eacb9a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 034def730cb10c560b0a4e86c7e180cffdaab56290c0b0c462b49b56d194d03e
[INFO] running `Command { std: "docker" "start" "-a" "034def730cb10c560b0a4e86c7e180cffdaab56290c0b0c462b49b56d194d03e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling pin-project-lite v0.2.7
[INFO] [stderr]    Compiling tokio v1.10.0
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling noodles-tabix v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `tokio::io::AsyncBufReadExt`
[INFO] [stdout]   --> examples/tabix_read_header_async.rs:11:16
[INFO] [stdout]    |
[INFO] [stdout] 11 |     io::{self, AsyncBufReadExt},
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^
[INFO] [stdout]    |                |
[INFO] [stdout]    |                no `AsyncBufReadExt` in `io`
[INFO] [stdout]    |                help: a similar name exists in the module: `AsyncBufRead`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `r#async` in `tabix`
[INFO] [stdout]   --> examples/tabix_read_header_async.rs:19:24
[INFO] [stdout]    |
[INFO] [stdout] 19 |     let index = tabix::r#async::read(tabix_src).await?;
[INFO] [stdout]    |                        ^^^^^^^ could not find `r#async` in `tabix`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `AsyncReader` in `bgzf`
[INFO] [stdout]   --> examples/tabix_read_header_async.rs:21:50
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let reader = File::open(src).await.map(bgzf::AsyncReader::new)?;
[INFO] [stdout]    |                                                  ^^^^^^^^^^^ could not find `AsyncReader` in `bgzf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `r#async` in `tabix`
[INFO] [stdout]   --> examples/tabix_list_reference_sequence_names_async.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let index = tabix::r#async::read(tabix_src).await?;
[INFO] [stdout]    |                        ^^^^^^^ could not find `r#async` in `tabix`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `noodles-tabix` due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "034def730cb10c560b0a4e86c7e180cffdaab56290c0b0c462b49b56d194d03e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "034def730cb10c560b0a4e86c7e180cffdaab56290c0b0c462b49b56d194d03e", kill_on_drop: false }`
[INFO] [stdout] 034def730cb10c560b0a4e86c7e180cffdaab56290c0b0c462b49b56d194d03e