[INFO] fetching crate thread_io 0.3.1...
[INFO] testing thread_io-0.3.1 against 1.90.0 for beta-1.91-3
[INFO] extracting crate thread_io 0.3.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate thread_io 0.3.1
[INFO] finished tweaking crates.io crate thread_io 0.3.1
[INFO] tweaked toml for crates.io crate thread_io 0.3.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate thread_io 0.3.1 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 113dfb4ff5547c52a056daaf67dd1006f8d3aeebb6a49368e4323fcc1c7b1fc9
[INFO] running `Command { std: "docker" "start" "-a" "113dfb4ff5547c52a056daaf67dd1006f8d3aeebb6a49368e4323fcc1c7b1fc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "113dfb4ff5547c52a056daaf67dd1006f8d3aeebb6a49368e4323fcc1c7b1fc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "113dfb4ff5547c52a056daaf67dd1006f8d3aeebb6a49368e4323fcc1c7b1fc9", kill_on_drop: false }`
[INFO] [stdout] 113dfb4ff5547c52a056daaf67dd1006f8d3aeebb6a49368e4323fcc1c7b1fc9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e0e9a3b6d7a8fa87b74e8d2a8ff1f04d353a6e714d09d0376d3e59ab19e04f1
[INFO] running `Command { std: "docker" "start" "-a" "9e0e9a3b6d7a8fa87b74e8d2a8ff1f04d353a6e714d09d0376d3e59ab19e04f1", kill_on_drop: false }`
[INFO] [stderr]    Compiling thread_io v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "9e0e9a3b6d7a8fa87b74e8d2a8ff1f04d353a6e714d09d0376d3e59ab19e04f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e0e9a3b6d7a8fa87b74e8d2a8ff1f04d353a6e714d09d0376d3e59ab19e04f1", kill_on_drop: false }`
[INFO] [stdout] 9e0e9a3b6d7a8fa87b74e8d2a8ff1f04d353a6e714d09d0376d3e59ab19e04f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 66cad5c6de1daab73ce3e64210a0368968ce61194d325486e30a68909c0058aa
[INFO] running `Command { std: "docker" "start" "-a" "66cad5c6de1daab73ce3e64210a0368968ce61194d325486e30a68909c0058aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling thread_io v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> tests/read.rs:17:16
[INFO] [stdout]    |
[INFO] [stdout] 17 |         data: &'a [u8],
[INFO] [stdout]    |                ^^ the lifetime is named here
[INFO] [stdout] ...
[INFO] [stdout] 22 |     ) -> Reader {
[INFO] [stdout]    |          ------ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 22 |     ) -> Reader<'a> {
[INFO] [stdout]    |                ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `Command { std: "docker" "inspect" "66cad5c6de1daab73ce3e64210a0368968ce61194d325486e30a68909c0058aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66cad5c6de1daab73ce3e64210a0368968ce61194d325486e30a68909c0058aa", kill_on_drop: false }`
[INFO] [stdout] 66cad5c6de1daab73ce3e64210a0368968ce61194d325486e30a68909c0058aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 1528687d4275782343f62613559d0047d89a4f29a6858f1651fe47d9bd7c49bb
[INFO] running `Command { std: "docker" "start" "-a" "1528687d4275782343f62613559d0047d89a4f29a6858f1651fe47d9bd7c49bb", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stderr]   --> tests/read.rs:17:16
[INFO] [stderr]    |
[INFO] [stderr] 17 |         data: &'a [u8],
[INFO] [stderr]    |                ^^ the lifetime is named here
[INFO] [stderr] ...
[INFO] [stderr] 22 |     ) -> Reader {
[INFO] [stderr]    |          ------ the same lifetime is hidden here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]    |
[INFO] [stderr] 22 |     ) -> Reader<'a> {
[INFO] [stderr]    |                ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `thread_io` (test "read") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/thread_io-c7097c8ffd5e8c4a)
[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] [stderr]      Running tests/read.rs (/opt/rustwide/target/debug/deps/read-b8f6682a77f523ab)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test read_fail_processing ... ok
[INFO] [stdout] test read_interrupted ... ok
[INFO] [stdout] test read_panic_processing - should panic ... ok
[INFO] [stdout] test reader_init_panic - should panic ... ok
[INFO] [stdout] test reader_init_fail ... ok
[INFO] [stdout] test read_panic - should panic ... ok
[INFO] [stdout] test read_fail ... ok
[INFO] [stdout] test read ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 9.84s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/write.rs (/opt/rustwide/target/debug/deps/write-645a9f3da740e80d)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test write_source_fail ... ok
[INFO] [stdout] test writer_init_fail ... ok
[INFO] [stdout] test writer_flush ... ok
[INFO] [stdout] test write_source_panic - should panic ... ok
[INFO] [stdout] test writer_init_panic - should panic ... ok
[INFO] [stdout] test write_thread ... ok
[INFO] [stdout] test write_fail ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 10.37s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests thread_io
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/write.rs - write::writer_init (line 250) ... ok
[INFO] [stdout] test src/write.rs - write::writer (line 222) ... ok
[INFO] [stdout] test src/read.rs - read::reader (line 198) ... ok
[INFO] [stdout] test src/read.rs - read::reader_init (line 226) ... ok
[INFO] [stdout] test src/write.rs - write::writer_finish (line 287) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.37s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "1528687d4275782343f62613559d0047d89a4f29a6858f1651fe47d9bd7c49bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1528687d4275782343f62613559d0047d89a4f29a6858f1651fe47d9bd7c49bb", kill_on_drop: false }`
[INFO] [stdout] 1528687d4275782343f62613559d0047d89a4f29a6858f1651fe47d9bd7c49bb