[INFO] fetching crate iter-flow 0.1.0...
[INFO] testing iter-flow-0.1.0 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1
[INFO] extracting crate iter-flow 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate iter-flow 0.1.0
[INFO] finished tweaking crates.io crate iter-flow 0.1.0
[INFO] tweaked toml for crates.io crate iter-flow 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate iter-flow 0.1.0 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate iter-flow 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6d01b3f344548ee874fbaf4a4e6bb5c552cf17c3e8a94f19ceb63a824631a3e
[INFO] running `Command { std: "docker" "start" "-a" "c6d01b3f344548ee874fbaf4a4e6bb5c552cf17c3e8a94f19ceb63a824631a3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6d01b3f344548ee874fbaf4a4e6bb5c552cf17c3e8a94f19ceb63a824631a3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6d01b3f344548ee874fbaf4a4e6bb5c552cf17c3e8a94f19ceb63a824631a3e", kill_on_drop: false }`
[INFO] [stdout] c6d01b3f344548ee874fbaf4a4e6bb5c552cf17c3e8a94f19ceb63a824631a3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b20b8b193f9f40d90a5a135bfdf04e4a6bed38a3ab6a72803581ee4b3bd7384a
[INFO] running `Command { std: "docker" "start" "-a" "b20b8b193f9f40d90a5a135bfdf04e4a6bed38a3ab6a72803581ee4b3bd7384a", kill_on_drop: false }`
[INFO] [stderr]    Compiling iter-flow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "b20b8b193f9f40d90a5a135bfdf04e4a6bed38a3ab6a72803581ee4b3bd7384a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b20b8b193f9f40d90a5a135bfdf04e4a6bed38a3ab6a72803581ee4b3bd7384a", kill_on_drop: false }`
[INFO] [stdout] b20b8b193f9f40d90a5a135bfdf04e4a6bed38a3ab6a72803581ee4b3bd7384a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64c261f131c66aebcb11d0b6d42d40e9214e456bcd7f9c64ae8f22572acd80bc
[INFO] running `Command { std: "docker" "start" "-a" "64c261f131c66aebcb11d0b6d42d40e9214e456bcd7f9c64ae8f22572acd80bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.68
[INFO] [stderr]    Compiling iter-flow v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]   --> examples/flow.rs:11:26
[INFO] [stdout]    |
[INFO] [stdout] 11 |         .flat_map_ok(|n| (0..n));
[INFO] [stdout]    |                          ^    ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -         .flat_map_ok(|n| (0..n));
[INFO] [stdout] 11 +         .flat_map_ok(|n| 0..n);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "64c261f131c66aebcb11d0b6d42d40e9214e456bcd7f9c64ae8f22572acd80bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64c261f131c66aebcb11d0b6d42d40e9214e456bcd7f9c64ae8f22572acd80bc", kill_on_drop: false }`
[INFO] [stdout] 64c261f131c66aebcb11d0b6d42d40e9214e456bcd7f9c64ae8f22572acd80bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c5bb0099608b8667281806f4e5428d317eb4a04c7774aaff96f53e635d1dd155
[INFO] running `Command { std: "docker" "start" "-a" "c5bb0099608b8667281806f4e5428d317eb4a04c7774aaff96f53e635d1dd155", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]   --> examples/flow.rs:11:26
[INFO] [stderr]    |
[INFO] [stderr] 11 |         .flat_map_ok(|n| (0..n));
[INFO] [stderr]    |                          ^    ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 11 -         .flat_map_ok(|n| (0..n));
[INFO] [stderr] 11 +         .flat_map_ok(|n| 0..n);
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `iter-flow` (example "flow") generated 1 warning (run `cargo fix --example "flow"` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/iter_flow-02e12cc69b7c525e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests iter_flow
[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] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test src/lib.rs - (line 7) ... ok
[INFO] [stdout] test src/lib.rs - Iterflow::and_then_flat (line 200) ... ok
[INFO] [stdout] test src/lib.rs - Iterflow::flat_map_ok_borrow (line 179) ... ok
[INFO] [stdout] test src/lib.rs - Iterflow::and_then_flat_borrow (line 226) ... ok
[INFO] [stdout] test src/lib.rs - assert_equal (line 278) ... ignored
[INFO] [stdout] test src/lib.rs - Iterflow::and_then_borrow (line 139) ... ok
[INFO] [stdout] test src/lib.rs - Iterflow::flat_map_ok (line 160) ... ok
[INFO] [stdout] test src/lib.rs - Iterflow::and_then (line 118) ... ok
[INFO] [stdout] test src/lib.rs - (line 13) ... ok
[INFO] [stdout] test src/lib.rs - Iterflow::map_err (line 64) ... ok
[INFO] [stdout] test src/lib.rs - Iterflow::map_ok_borrow (line 100) ... ok
[INFO] [stdout] test src/lib.rs - Iterflow::map_ok (line 82) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.40s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c5bb0099608b8667281806f4e5428d317eb4a04c7774aaff96f53e635d1dd155", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5bb0099608b8667281806f4e5428d317eb4a04c7774aaff96f53e635d1dd155", kill_on_drop: false }`
[INFO] [stdout] c5bb0099608b8667281806f4e5428d317eb4a04c7774aaff96f53e635d1dd155