[INFO] fetching crate winvec 0.2.0...
[INFO] testing winvec-0.2.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate winvec 0.2.0 into /workspace/builds/worker-107/source
[INFO] validating manifest of crates.io crate winvec 0.2.0 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 crates.io crate winvec 0.2.0
[INFO] finished tweaking crates.io crate winvec 0.2.0
[INFO] tweaked toml for crates.io crate winvec 0.2.0 written to /workspace/builds/worker-107/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ad84b1d9244ca4bbbc1c6aa7bfefe09299cebdc3cec8d39413d88ad675ec245e
[INFO] running `Command { std: "docker" "start" "-a" "ad84b1d9244ca4bbbc1c6aa7bfefe09299cebdc3cec8d39413d88ad675ec245e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad84b1d9244ca4bbbc1c6aa7bfefe09299cebdc3cec8d39413d88ad675ec245e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad84b1d9244ca4bbbc1c6aa7bfefe09299cebdc3cec8d39413d88ad675ec245e", kill_on_drop: false }`
[INFO] [stdout] ad84b1d9244ca4bbbc1c6aa7bfefe09299cebdc3cec8d39413d88ad675ec245e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 88721c56b9b745632e12f9113a1669c071eb1fb3d51b42ee1ba1463f2c999ea7
[INFO] running `Command { std: "docker" "start" "-a" "88721c56b9b745632e12f9113a1669c071eb1fb3d51b42ee1ba1463f2c999ea7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling winvec v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `iter::FromIterator`
[INFO] [stdout]  --> src/winvec.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     iter::FromIterator,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `iter::FromIterator`
[INFO] [stdout]  --> src/winset.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     iter::FromIterator,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.29s
[INFO] running `Command { std: "docker" "inspect" "88721c56b9b745632e12f9113a1669c071eb1fb3d51b42ee1ba1463f2c999ea7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88721c56b9b745632e12f9113a1669c071eb1fb3d51b42ee1ba1463f2c999ea7", kill_on_drop: false }`
[INFO] [stdout] 88721c56b9b745632e12f9113a1669c071eb1fb3d51b42ee1ba1463f2c999ea7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 491e465ee40a8c755b7803210bff0bffedc64267072bc892e1310b67caea7777
[INFO] running `Command { std: "docker" "start" "-a" "491e465ee40a8c755b7803210bff0bffedc64267072bc892e1310b67caea7777", kill_on_drop: false }`
[INFO] [stderr]    Compiling winvec v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `iter::FromIterator`
[INFO] [stdout]  --> src/winvec.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     iter::FromIterator,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `iter::FromIterator`
[INFO] [stdout]  --> src/winset.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     iter::FromIterator,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `iter::FromIterator`
[INFO] [stdout]  --> src/winvec.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 |     iter::FromIterator,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `iter::FromIterator`
[INFO] [stdout]  --> src/winset.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     iter::FromIterator,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.63s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/winvec-00f6759aa745cabd)
[INFO] running `Command { std: "docker" "inspect" "491e465ee40a8c755b7803210bff0bffedc64267072bc892e1310b67caea7777", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "491e465ee40a8c755b7803210bff0bffedc64267072bc892e1310b67caea7777", kill_on_drop: false }`
[INFO] [stdout] 491e465ee40a8c755b7803210bff0bffedc64267072bc892e1310b67caea7777
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ab75de7b991a2587f8f82451edf89ddb91213fa5426af85e9b4d313be843905c
[INFO] running `Command { std: "docker" "start" "-a" "ab75de7b991a2587f8f82451edf89ddb91213fa5426af85e9b4d313be843905c", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `iter::FromIterator`
[INFO] [stderr]  --> src/winvec.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 |     iter::FromIterator,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `iter::FromIterator`
[INFO] [stderr]  --> src/winset.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     iter::FromIterator,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `winvec` (lib) generated 2 warnings
[INFO] [stderr] warning: `winvec` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/winvec-00f6759aa745cabd)
[INFO] [stderr]    Doc-tests winvec
[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] error[E0659]: `winvec` is ambiguous
[INFO] [stderr]  --> /opt/rustwide/workdir/src/lib.rs:3:9
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub use winvec::WinVec;
[INFO] [stderr]   |         ^^^^^^ ambiguous name
[INFO] [stderr]   |
[INFO] [stderr]   = note: ambiguous because of multiple potential import sources
[INFO] [stderr]   = note: `winvec` could refer to a crate passed with `--extern`
[INFO] [stderr]   = help: use `::winvec` to refer to this crate unambiguously
[INFO] [stderr] note: `winvec` could also refer to the module defined here
[INFO] [stderr]  --> /opt/rustwide/workdir/src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | mod winvec;
[INFO] [stderr]   | ^^^^^^^^^^^
[INFO] [stderr]   = help: use `crate::winvec` to refer to this module unambiguously
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0659`.
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "ab75de7b991a2587f8f82451edf89ddb91213fa5426af85e9b4d313be843905c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab75de7b991a2587f8f82451edf89ddb91213fa5426af85e9b4d313be843905c", kill_on_drop: false }`
[INFO] [stdout] ab75de7b991a2587f8f82451edf89ddb91213fa5426af85e9b4d313be843905c