[INFO] fetching crate io-tether 0.6.1...
[INFO] testing io-tether-0.6.1 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate io-tether 0.6.1 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate io-tether 0.6.1
[INFO] finished tweaking crates.io crate io-tether 0.6.1
[INFO] tweaked toml for crates.io crate io-tether 0.6.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate io-tether 0.6.1 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate io-tether 0.6.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded miniz_oxide v0.8.3
[INFO] [stderr]   Downloaded tokio-test v0.4.4
[INFO] [stderr]   Downloaded redox_syscall v0.5.8
[INFO] [stderr]   Downloaded bytes v1.10.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72a6d56d9b4c22b21b8307a0297f1fcc60ee20c49f58b3db52063df30ede7a7d
[INFO] running `Command { std: "docker" "start" "-a" "72a6d56d9b4c22b21b8307a0297f1fcc60ee20c49f58b3db52063df30ede7a7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72a6d56d9b4c22b21b8307a0297f1fcc60ee20c49f58b3db52063df30ede7a7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72a6d56d9b4c22b21b8307a0297f1fcc60ee20c49f58b3db52063df30ede7a7d", kill_on_drop: false }`
[INFO] [stdout] 72a6d56d9b4c22b21b8307a0297f1fcc60ee20c49f58b3db52063df30ede7a7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25f81d84322d1d2d3847e6c38f29fb5aed29ed0021d68d1f771c79990cf7af76
[INFO] running `Command { std: "docker" "start" "-a" "25f81d84322d1d2d3847e6c38f29fb5aed29ed0021d68d1f771c79990cf7af76", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling mio v1.0.3
[INFO] [stderr]    Compiling socket2 v0.5.8
[INFO] [stderr]    Compiling tokio v1.43.0
[INFO] [stderr]    Compiling io-tether v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.77s
[INFO] running `Command { std: "docker" "inspect" "25f81d84322d1d2d3847e6c38f29fb5aed29ed0021d68d1f771c79990cf7af76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25f81d84322d1d2d3847e6c38f29fb5aed29ed0021d68d1f771c79990cf7af76", kill_on_drop: false }`
[INFO] [stdout] 25f81d84322d1d2d3847e6c38f29fb5aed29ed0021d68d1f771c79990cf7af76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2769c61328d794f21cb52963340068f99878d3950b6e5f42ada183a0e11de850
[INFO] running `Command { std: "docker" "start" "-a" "2769c61328d794f21cb52963340068f99878d3950b6e5f42ada183a0e11de850", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.16
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling bytes v1.10.0
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]    Compiling async-stream-impl v0.3.6
[INFO] [stderr]    Compiling async-stream v0.3.6
[INFO] [stderr]    Compiling tokio v1.43.0
[INFO] [stderr]    Compiling tokio-stream v0.1.17
[INFO] [stderr]    Compiling io-tether v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling tokio-test v0.4.4
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 14.78s
[INFO] running `Command { std: "docker" "inspect" "2769c61328d794f21cb52963340068f99878d3950b6e5f42ada183a0e11de850", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2769c61328d794f21cb52963340068f99878d3950b6e5f42ada183a0e11de850", kill_on_drop: false }`
[INFO] [stdout] 2769c61328d794f21cb52963340068f99878d3950b6e5f42ada183a0e11de850
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5bce7e07d94b3643a893b2378d08e1b573a112e4fed8931219121dbf349ff957
[INFO] running `Command { std: "docker" "start" "-a" "5bce7e07d94b3643a893b2378d08e1b573a112e4fed8931219121dbf349ff957", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/io_tether-d8de057f6268268a)
[INFO] [stdout] test tests::immediate_error ... ok
[INFO] [stdout] test tests::read_then_disconnect ... ok
[INFO] [stdout] test tests::single_read_then_eof ... ok
[INFO] [stdout] test tests::disconnect_is_retried ... ok
[INFO] [stdout] test tests::failure_to_connect_doesnt_panic ... ok
[INFO] [stdout] test tests::split_works ... ok
[INFO] [stdout] test tests::reconnect_value_is_respected ... ok
[INFO] [stdout] test tests::two_read_then_eof ... ok
[INFO] [stdout] test tests::error_is_consumed_when_set ... ok
[INFO] [stdout] test tests::basic_write ... ok
[INFO] [stdout] test tests::write_data_is_silently_dropped_when_set ... ok
[INFO] [stderr]    Doc-tests io_tether
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.11s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - Resolver (line 42) - compile ... ok
[INFO] [stdout] test src/lib.rs - Tether (line 207) - compile ... ok
[INFO] [stdout] test src/lib.rs - Tether (line 233) ... ok
[INFO] [stdout] test src/../README.md - (line 41) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.51s
[INFO] [stdout] 
[INFO] [stdout] all doctests ran in 1.42s; merged doctests compilation took 0.90s
[INFO] running `Command { std: "docker" "inspect" "5bce7e07d94b3643a893b2378d08e1b573a112e4fed8931219121dbf349ff957", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bce7e07d94b3643a893b2378d08e1b573a112e4fed8931219121dbf349ff957", kill_on_drop: false }`
[INFO] [stdout] 5bce7e07d94b3643a893b2378d08e1b573a112e4fed8931219121dbf349ff957