[INFO] fetching crate winvec 0.2.0...
[INFO] testing winvec-0.2.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate winvec 0.2.0 into /workspace/builds/worker-103/source
[INFO] validating manifest of crates.io crate winvec 0.2.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-103/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7fefb7a5083c200accb9e9c2bb872bc460a7c6238b613fdabfe17cb8a0690629
[INFO] running `Command { std: "docker" "start" "-a" "7fefb7a5083c200accb9e9c2bb872bc460a7c6238b613fdabfe17cb8a0690629", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7fefb7a5083c200accb9e9c2bb872bc460a7c6238b613fdabfe17cb8a0690629", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fefb7a5083c200accb9e9c2bb872bc460a7c6238b613fdabfe17cb8a0690629", kill_on_drop: false }`
[INFO] [stdout] 7fefb7a5083c200accb9e9c2bb872bc460a7c6238b613fdabfe17cb8a0690629
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db695b4c928c3c280a1d9e363e925f6d4cbdcd13dcb8d58f0998a00381d1dd39
[INFO] running `Command { std: "docker" "start" "-a" "db695b4c928c3c280a1d9e363e925f6d4cbdcd13dcb8d58f0998a00381d1dd39", 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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "db695b4c928c3c280a1d9e363e925f6d4cbdcd13dcb8d58f0998a00381d1dd39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db695b4c928c3c280a1d9e363e925f6d4cbdcd13dcb8d58f0998a00381d1dd39", kill_on_drop: false }`
[INFO] [stdout] db695b4c928c3c280a1d9e363e925f6d4cbdcd13dcb8d58f0998a00381d1dd39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b76e9248fb9765fc495fae38d558c4ca10be838c9a8630bb4d4040c7cce06ad5
[INFO] running `Command { std: "docker" "start" "-a" "b76e9248fb9765fc495fae38d558c4ca10be838c9a8630bb4d4040c7cce06ad5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]    Compiling winvec v0.2.0 (/opt/rustwide/workdir)
[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 1.62s
[INFO] running `Command { std: "docker" "inspect" "b76e9248fb9765fc495fae38d558c4ca10be838c9a8630bb4d4040c7cce06ad5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b76e9248fb9765fc495fae38d558c4ca10be838c9a8630bb4d4040c7cce06ad5", kill_on_drop: false }`
[INFO] [stdout] b76e9248fb9765fc495fae38d558c4ca10be838c9a8630bb4d4040c7cce06ad5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-103/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] dbe5036bd121a935e6a5e648fe4e476598854c51a05e1cf5751ae2988a51097f
[INFO] running `Command { std: "docker" "start" "-a" "dbe5036bd121a935e6a5e648fe4e476598854c51a05e1cf5751ae2988a51097f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 0.19s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/winvec-a79e8ef22299a691)
[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]    Doc-tests winvec
[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" "dbe5036bd121a935e6a5e648fe4e476598854c51a05e1cf5751ae2988a51097f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbe5036bd121a935e6a5e648fe4e476598854c51a05e1cf5751ae2988a51097f", kill_on_drop: false }`
[INFO] [stdout] dbe5036bd121a935e6a5e648fe4e476598854c51a05e1cf5751ae2988a51097f