[INFO] fetching crate collections-futures 0.2.1...
[INFO] testing collections-futures-0.2.1 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate collections-futures 0.2.1 into /workspace/builds/worker-3-tc2/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-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate collections-futures 0.2.1 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "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" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c913e66b7613729595594ab53456ff00b0fb4562a2805135f77e739f4991cb5e
[INFO] running `Command { std: "docker" "start" "-a" "c913e66b7613729595594ab53456ff00b0fb4562a2805135f77e739f4991cb5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c913e66b7613729595594ab53456ff00b0fb4562a2805135f77e739f4991cb5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c913e66b7613729595594ab53456ff00b0fb4562a2805135f77e739f4991cb5e", kill_on_drop: false }`
[INFO] [stdout] c913e66b7613729595594ab53456ff00b0fb4562a2805135f77e739f4991cb5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5771d342412972f84ac30f67acff3734a3d0eb015356f9998a3f26e42854ffde
[INFO] running `Command { std: "docker" "start" "-a" "5771d342412972f84ac30f67acff3734a3d0eb015356f9998a3f26e42854ffde", 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 4.56s
[INFO] running `Command { std: "docker" "inspect" "5771d342412972f84ac30f67acff3734a3d0eb015356f9998a3f26e42854ffde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5771d342412972f84ac30f67acff3734a3d0eb015356f9998a3f26e42854ffde", kill_on_drop: false }`
[INFO] [stdout] 5771d342412972f84ac30f67acff3734a3d0eb015356f9998a3f26e42854ffde
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 21803c9bda0c85840f4d29a0f5bd93838745db16e1b41767e1ffc011b6c28672
[INFO] running `Command { std: "docker" "start" "-a" "21803c9bda0c85840f4d29a0f5bd93838745db16e1b41767e1ffc011b6c28672", 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 1.17s
[INFO] running `Command { std: "docker" "inspect" "21803c9bda0c85840f4d29a0f5bd93838745db16e1b41767e1ffc011b6c28672", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21803c9bda0c85840f4d29a0f5bd93838745db16e1b41767e1ffc011b6c28672", kill_on_drop: false }`
[INFO] [stdout] 21803c9bda0c85840f4d29a0f5bd93838745db16e1b41767e1ffc011b6c28672
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d047dbd027711e7fbf7397ba14440d183deeafec234b0a763848d20e997104e3
[INFO] running `Command { std: "docker" "start" "-a" "d047dbd027711e7fbf7397ba14440d183deeafec234b0a763848d20e997104e3", 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 0.05s
[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_removal ... ok
[INFO] [stdout] test tree_future::tests::test_cancellation ... ok
[INFO] [stdout] test tree_future_local::tests::test_cancellation ... ok
[INFO] [stdout] test tree_future::tests::test_basic_insertion ... ok
[INFO] [stdout] test tree_future_local::tests::test_basic_insertion ... ok
[INFO] [stdout] test tree_future_local::tests::test_removal ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[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 25) ... ok
[INFO] [stdout] test src/lib.rs - (line 4) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.67s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d047dbd027711e7fbf7397ba14440d183deeafec234b0a763848d20e997104e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d047dbd027711e7fbf7397ba14440d183deeafec234b0a763848d20e997104e3", kill_on_drop: false }`
[INFO] [stdout] d047dbd027711e7fbf7397ba14440d183deeafec234b0a763848d20e997104e3