[INFO] fetching crate collections-futures 0.2.1...
[INFO] testing collections-futures-0.2.1 against try#16fbf98f22730e073c09e7b03f0eafb87a295545 for pr-145628
[INFO] extracting crate collections-futures 0.2.1 into /workspace/builds/worker-5-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-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate collections-futures 0.2.1 on toolchain 16fbf98f22730e073c09e7b03f0eafb87a295545
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "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" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "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" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 46b879f20f2e9ab1420e4e15bb8721877477f32e2ce440681127e65748f339e6
[INFO] running `Command { std: "docker" "start" "-a" "46b879f20f2e9ab1420e4e15bb8721877477f32e2ce440681127e65748f339e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "46b879f20f2e9ab1420e4e15bb8721877477f32e2ce440681127e65748f339e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46b879f20f2e9ab1420e4e15bb8721877477f32e2ce440681127e65748f339e6", kill_on_drop: false }`
[INFO] [stdout] 46b879f20f2e9ab1420e4e15bb8721877477f32e2ce440681127e65748f339e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ffd54d211df8e9d0515fe60977b4399242c25954216ae9dcaa3c35e4f6d3d783
[INFO] running `Command { std: "docker" "start" "-a" "ffd54d211df8e9d0515fe60977b4399242c25954216ae9dcaa3c35e4f6d3d783", kill_on_drop: false }`
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling memchr v2.7.5
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling futures-macro v0.3.31
[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 6.40s
[INFO] running `Command { std: "docker" "inspect" "ffd54d211df8e9d0515fe60977b4399242c25954216ae9dcaa3c35e4f6d3d783", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffd54d211df8e9d0515fe60977b4399242c25954216ae9dcaa3c35e4f6d3d783", kill_on_drop: false }`
[INFO] [stdout] ffd54d211df8e9d0515fe60977b4399242c25954216ae9dcaa3c35e4f6d3d783
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e86cb493b9e9bcab9ffd65dfba199dfd1b072783937f182777fc8312718f585e
[INFO] running `Command { std: "docker" "start" "-a" "e86cb493b9e9bcab9ffd65dfba199dfd1b072783937f182777fc8312718f585e", kill_on_drop: false }`
[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] [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 0.55s
[INFO] running `Command { std: "docker" "inspect" "e86cb493b9e9bcab9ffd65dfba199dfd1b072783937f182777fc8312718f585e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e86cb493b9e9bcab9ffd65dfba199dfd1b072783937f182777fc8312718f585e", kill_on_drop: false }`
[INFO] [stdout] e86cb493b9e9bcab9ffd65dfba199dfd1b072783937f182777fc8312718f585e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+16fbf98f22730e073c09e7b03f0eafb87a295545" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ee79ff12b06b93d3b058823ffb3bcf7686767f5b3ad7e705a85de197131533bb
[INFO] running `Command { std: "docker" "start" "-a" "ee79ff12b06b93d3b058823ffb3bcf7686767f5b3ad7e705a85de197131533bb", 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 0.03s
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/collections_futures-b12d6e3cf36ce0de)
[INFO] [stdout] test tree_future::tests::test_basic_insertion ... ok
[INFO] [stdout] test tree_future::tests::test_cancellation ... ok
[INFO] [stdout] test tree_future::tests::test_removal ... ok
[INFO] [stdout] test tree_future_local::tests::test_cancellation ... 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 0.00s
[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 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 0.40s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ee79ff12b06b93d3b058823ffb3bcf7686767f5b3ad7e705a85de197131533bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee79ff12b06b93d3b058823ffb3bcf7686767f5b3ad7e705a85de197131533bb", kill_on_drop: false }`
[INFO] [stdout] ee79ff12b06b93d3b058823ffb3bcf7686767f5b3ad7e705a85de197131533bb