[INFO] fetching crate map_for 0.3.0...
[INFO] testing map_for-0.3.0 against master#432e145bd5a974c5b6f4dd9b352891bd7502b69d for pr-87041
[INFO] extracting crate map_for 0.3.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate map_for 0.3.0 on toolchain 432e145bd5a974c5b6f4dd9b352891bd7502b69d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate map_for 0.3.0
[INFO] finished tweaking crates.io crate map_for 0.3.0
[INFO] tweaked toml for crates.io crate map_for 0.3.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2c70ef1b6a297bcde5038df42a2c2827e145d5f4a15ad8e733368aba882e3bf1
[INFO] running `Command { std: "docker" "start" "-a" "2c70ef1b6a297bcde5038df42a2c2827e145d5f4a15ad8e733368aba882e3bf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2c70ef1b6a297bcde5038df42a2c2827e145d5f4a15ad8e733368aba882e3bf1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c70ef1b6a297bcde5038df42a2c2827e145d5f4a15ad8e733368aba882e3bf1", kill_on_drop: false }`
[INFO] [stdout] 2c70ef1b6a297bcde5038df42a2c2827e145d5f4a15ad8e733368aba882e3bf1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ede36d2798d95649de34f7c39063c194cbf66b585e05f08bb4103a9806d9ac9b
[INFO] running `Command { std: "docker" "start" "-a" "ede36d2798d95649de34f7c39063c194cbf66b585e05f08bb4103a9806d9ac9b", kill_on_drop: false }`
[INFO] [stderr]    Compiling map_for v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "ede36d2798d95649de34f7c39063c194cbf66b585e05f08bb4103a9806d9ac9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ede36d2798d95649de34f7c39063c194cbf66b585e05f08bb4103a9806d9ac9b", kill_on_drop: false }`
[INFO] [stdout] ede36d2798d95649de34f7c39063c194cbf66b585e05f08bb4103a9806d9ac9b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 270351890fb742f8ac4ab17f6e5c05cafbae65727f07b2fb098a2a44f0635e04
[INFO] running `Command { std: "docker" "start" "-a" "270351890fb742f8ac4ab17f6e5c05cafbae65727f07b2fb098a2a44f0635e04", kill_on_drop: false }`
[INFO] [stderr]    Compiling map_for v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lib.rs:342:13
[INFO] [stdout]     |
[INFO] [stdout] 342 |          => { a + b } };
[INFO] [stdout]     |             ^^^^^^^^^ help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lib.rs:410:13
[INFO] [stdout]     |
[INFO] [stdout] 410 |          => { a + b } };
[INFO] [stdout]     |             ^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/lib.rs:416:13
[INFO] [stdout]     |
[INFO] [stdout] 416 |          => { a + b } };
[INFO] [stdout]     |             ^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "270351890fb742f8ac4ab17f6e5c05cafbae65727f07b2fb098a2a44f0635e04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "270351890fb742f8ac4ab17f6e5c05cafbae65727f07b2fb098a2a44f0635e04", kill_on_drop: false }`
[INFO] [stdout] 270351890fb742f8ac4ab17f6e5c05cafbae65727f07b2fb098a2a44f0635e04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+432e145bd5a974c5b6f4dd9b352891bd7502b69d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 14f1a7a62351769c5f5e8d254be4820114b222eefca8429a524533f0ce8bf34e
[INFO] running `Command { std: "docker" "start" "-a" "14f1a7a62351769c5f5e8d254be4820114b222eefca8429a524533f0ce8bf34e", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]    --> src/lib.rs:342:13
[INFO] [stderr]     |
[INFO] [stderr] 342 |          => { a + b } };
[INFO] [stderr]     |             ^^^^^^^^^ help: remove these braces
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]    --> src/lib.rs:410:13
[INFO] [stderr]     |
[INFO] [stderr] 410 |          => { a + b } };
[INFO] [stderr]     |             ^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]    --> src/lib.rs:416:13
[INFO] [stderr]     |
[INFO] [stderr] 416 |          => { a + b } };
[INFO] [stderr]     |             ^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/map_for-badc61fd384e393c)
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::capture ... ok
[INFO] [stdout] test tests::filtering ... ok
[INFO] [stdout] test tests::filtering_options ... ok
[INFO] [stdout] test tests::mixed_modes ... ok
[INFO] [stdout] test tests::filtering_borrow ... ok
[INFO] [stdout] test tests::option ... ok
[INFO] [stdout] test tests::range ... ok
[INFO] [stdout] test tests::regular_binding ... ok
[INFO] [stdout] test tests::tuple ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests map_for
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test src/lib.rs - (line 7) ... ok
[INFO] [stdout] test src/lib.rs - Filter (line 64) ... ok
[INFO] [stdout] test src/lib.rs - (line 22) ... ok
[INFO] [stdout] test src/lib.rs - map_for (line 202) ... ok
[INFO] [stdout] test src/lib.rs - FlatMap (line 36) ... ok
[INFO] [stdout] test src/lib.rs - map_for (line 168) ... ok
[INFO] [stdout] test src/lib.rs - map_for (line 130) ... ok
[INFO] [stdout] test src/lib.rs - map_for (line 184) ... ok
[INFO] [stdout] test src/lib.rs - map_for (line 105) ... ok
[INFO] [stdout] test src/lib.rs - map_for (line 148) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.36s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "14f1a7a62351769c5f5e8d254be4820114b222eefca8429a524533f0ce8bf34e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14f1a7a62351769c5f5e8d254be4820114b222eefca8429a524533f0ce8bf34e", kill_on_drop: false }`
[INFO] [stdout] 14f1a7a62351769c5f5e8d254be4820114b222eefca8429a524533f0ce8bf34e