[INFO] fetching crate collections-futures 0.2.1...
[INFO] testing collections-futures-0.2.1 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate collections-futures 0.2.1 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate collections-futures 0.2.1
[INFO] finished tweaking crates.io crate collections-futures 0.2.1
[INFO] tweaked toml for crates.io crate collections-futures 0.2.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate collections-futures 0.2.1 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 17 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc2706e70b3d305080fc82050112757e60da657e5fba25e31eccf4758a7151bc
[INFO] running `Command { std: "docker" "start" "-a" "cc2706e70b3d305080fc82050112757e60da657e5fba25e31eccf4758a7151bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc2706e70b3d305080fc82050112757e60da657e5fba25e31eccf4758a7151bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc2706e70b3d305080fc82050112757e60da657e5fba25e31eccf4758a7151bc", kill_on_drop: false }`
[INFO] [stdout] cc2706e70b3d305080fc82050112757e60da657e5fba25e31eccf4758a7151bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 732451d2309b5c5048b5e0e4c73b7bc432116193dedad532dae07cea3da20a95
[INFO] running `Command { std: "docker" "start" "-a" "732451d2309b5c5048b5e0e4c73b7bc432116193dedad532dae07cea3da20a95", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling collections-futures v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/error.rs:6:26
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl TreeFutureError for (dyn std::error::Error + Send + 'static) {}
[INFO] [stdout]   |                          ^                                      ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 6 - impl TreeFutureError for (dyn std::error::Error + Send + 'static) {}
[INFO] [stdout] 6 + impl TreeFutureError for dyn std::error::Error + Send + 'static {}
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.30s
[INFO] running `Command { std: "docker" "inspect" "732451d2309b5c5048b5e0e4c73b7bc432116193dedad532dae07cea3da20a95", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "732451d2309b5c5048b5e0e4c73b7bc432116193dedad532dae07cea3da20a95", kill_on_drop: false }`
[INFO] [stdout] 732451d2309b5c5048b5e0e4c73b7bc432116193dedad532dae07cea3da20a95
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aed2ddd9ab9493dea882dde02e4d058de235e71995bf3812ba2862b1fbcc1b56
[INFO] running `Command { std: "docker" "start" "-a" "aed2ddd9ab9493dea882dde02e4d058de235e71995bf3812ba2862b1fbcc1b56", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/error.rs:6:26
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl TreeFutureError for (dyn std::error::Error + Send + 'static) {}
[INFO] [stdout]   |                          ^                                      ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 6 - impl TreeFutureError for (dyn std::error::Error + Send + 'static) {}
[INFO] [stdout] 6 + impl TreeFutureError for dyn std::error::Error + Send + 'static {}
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling collections-futures v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]  --> src/error.rs:6:26
[INFO] [stdout]   |
[INFO] [stdout] 6 | impl TreeFutureError for (dyn std::error::Error + Send + 'static) {}
[INFO] [stdout]   |                          ^                                      ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 6 - impl TreeFutureError for (dyn std::error::Error + Send + 'static) {}
[INFO] [stdout] 6 + impl TreeFutureError for dyn std::error::Error + Send + 'static {}
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "aed2ddd9ab9493dea882dde02e4d058de235e71995bf3812ba2862b1fbcc1b56", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aed2ddd9ab9493dea882dde02e4d058de235e71995bf3812ba2862b1fbcc1b56", kill_on_drop: false }`
[INFO] [stdout] aed2ddd9ab9493dea882dde02e4d058de235e71995bf3812ba2862b1fbcc1b56
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ff7cfa8f3c76244047d1ca01c3ea4a6218aedd01cc69a4683681d1f3e79e9732
[INFO] running `Command { std: "docker" "start" "-a" "ff7cfa8f3c76244047d1ca01c3ea4a6218aedd01cc69a4683681d1f3e79e9732", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> src/error.rs:6:26
[INFO] [stderr]   |
[INFO] [stderr] 6 | impl TreeFutureError for (dyn std::error::Error + Send + 'static) {}
[INFO] [stderr]   |                          ^                                      ^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr] 6 - impl TreeFutureError for (dyn std::error::Error + Send + 'static) {}
[INFO] [stderr] 6 + impl TreeFutureError for dyn std::error::Error + Send + 'static {}
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: `collections-futures` (lib) generated 1 warning (run `cargo fix --lib -p collections-futures` to apply 1 suggestion)
[INFO] [stderr] warning: `collections-futures` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/collections_futures-b12d6e3cf36ce0de)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tree_future::tests::test_basic_insertion ... ok
[INFO] [stdout] test tree_future_local::tests::test_cancellation ... ok
[INFO] [stdout] test tree_future_local::tests::test_removal ... ok
[INFO] [stdout] test tree_future::tests::test_removal ... ok
[INFO] [stdout] test tree_future::tests::test_cancellation ... ok
[INFO] [stdout] test tree_future_local::tests::test_basic_insertion ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests collections_futures
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]  --> src/error.rs:6:26
[INFO] [stderr]   |
[INFO] [stderr] 6 | impl TreeFutureError for (dyn std::error::Error + Send + 'static) {}
[INFO] [stderr]   |                          ^                                      ^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr] 6 - impl TreeFutureError for (dyn std::error::Error + Send + 'static) {}
[INFO] [stderr] 6 + impl TreeFutureError for dyn std::error::Error + Send + 'static {}
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - (line 4) ... ok
[INFO] [stdout] test src/lib.rs - (line 25) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.89s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ff7cfa8f3c76244047d1ca01c3ea4a6218aedd01cc69a4683681d1f3e79e9732", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff7cfa8f3c76244047d1ca01c3ea4a6218aedd01cc69a4683681d1f3e79e9732", kill_on_drop: false }`
[INFO] [stdout] ff7cfa8f3c76244047d1ca01c3ea4a6218aedd01cc69a4683681d1f3e79e9732