[INFO] fetching crate proconlib 0.1.0...
[INFO] testing proconlib-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate proconlib 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate proconlib 0.1.0
[INFO] finished tweaking crates.io crate proconlib 0.1.0
[INFO] tweaked toml for crates.io crate proconlib 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate proconlib 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0f7a4463d8bf9a0a1288e5a8256c508d6cfccede80cbe9ef37eacf1cf57dda3a
[INFO] running `Command { std: "docker" "start" "-a" "0f7a4463d8bf9a0a1288e5a8256c508d6cfccede80cbe9ef37eacf1cf57dda3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f7a4463d8bf9a0a1288e5a8256c508d6cfccede80cbe9ef37eacf1cf57dda3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f7a4463d8bf9a0a1288e5a8256c508d6cfccede80cbe9ef37eacf1cf57dda3a", kill_on_drop: false }`
[INFO] [stdout] 0f7a4463d8bf9a0a1288e5a8256c508d6cfccede80cbe9ef37eacf1cf57dda3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 25c50c5c5050f1ecf39f063ee04b6838cbd090e9e6a830a410003f744a6117fd
[INFO] running `Command { std: "docker" "start" "-a" "25c50c5c5050f1ecf39f063ee04b6838cbd090e9e6a830a410003f744a6117fd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proconlib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/bit.rs:24:23
[INFO] [stdout]    |
[INFO] [stdout] 24 |             self.bits[(x as usize)] += w;
[INFO] [stdout]    |                       ^          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 24 -             self.bits[(x as usize)] += w;
[INFO] [stdout] 24 +             self.bits[x as usize] += w;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/bit.rs:32:23
[INFO] [stdout]    |
[INFO] [stdout] 32 |             self.bits[(x as usize)] -= w;
[INFO] [stdout]    |                       ^          ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 32 -             self.bits[(x as usize)] -= w;
[INFO] [stdout] 32 +             self.bits[x as usize] -= w;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "25c50c5c5050f1ecf39f063ee04b6838cbd090e9e6a830a410003f744a6117fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25c50c5c5050f1ecf39f063ee04b6838cbd090e9e6a830a410003f744a6117fd", kill_on_drop: false }`
[INFO] [stdout] 25c50c5c5050f1ecf39f063ee04b6838cbd090e9e6a830a410003f744a6117fd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6649ea171efd8a5fb44e3a93974fd630f6616f69f6051f6f449e9f6d0af4a61a
[INFO] running `Command { std: "docker" "start" "-a" "6649ea171efd8a5fb44e3a93974fd630f6616f69f6051f6f449e9f6d0af4a61a", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/bit.rs:24:23
[INFO] [stdout]    |
[INFO] [stdout] 24 |             self.bits[(x as usize)] += w;
[INFO] [stdout]    |                       ^          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 24 -             self.bits[(x as usize)] += w;
[INFO] [stdout] 24 +             self.bits[x as usize] += w;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/bit.rs:32:23
[INFO] [stdout]    |
[INFO] [stdout] 32 |             self.bits[(x as usize)] -= w;
[INFO] [stdout]    |                       ^          ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 32 -             self.bits[(x as usize)] -= w;
[INFO] [stdout] 32 +             self.bits[x as usize] -= w;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling proconlib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/bit.rs:24:23
[INFO] [stdout]    |
[INFO] [stdout] 24 |             self.bits[(x as usize)] += w;
[INFO] [stdout]    |                       ^          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 24 -             self.bits[(x as usize)] += w;
[INFO] [stdout] 24 +             self.bits[x as usize] += w;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around index expression
[INFO] [stdout]   --> src/bit.rs:32:23
[INFO] [stdout]    |
[INFO] [stdout] 32 |             self.bits[(x as usize)] -= w;
[INFO] [stdout]    |                       ^          ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 32 -             self.bits[(x as usize)] -= w;
[INFO] [stdout] 32 +             self.bits[x as usize] -= w;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.41s
[INFO] running `Command { std: "docker" "inspect" "6649ea171efd8a5fb44e3a93974fd630f6616f69f6051f6f449e9f6d0af4a61a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6649ea171efd8a5fb44e3a93974fd630f6616f69f6051f6f449e9f6d0af4a61a", kill_on_drop: false }`
[INFO] [stdout] 6649ea171efd8a5fb44e3a93974fd630f6616f69f6051f6f449e9f6d0af4a61a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] fdc3fed192750837257ecce1e18a89a421b6d75dd420699d34c609e8d64c67b2
[INFO] running `Command { std: "docker" "start" "-a" "fdc3fed192750837257ecce1e18a89a421b6d75dd420699d34c609e8d64c67b2", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around index expression
[INFO] [stderr]   --> src/bit.rs:24:23
[INFO] [stderr]    |
[INFO] [stderr] 24 |             self.bits[(x as usize)] += w;
[INFO] [stderr]    |                       ^          ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 24 -             self.bits[(x as usize)] += w;
[INFO] [stderr] 24 +             self.bits[x as usize] += w;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around index expression
[INFO] [stderr]   --> src/bit.rs:32:23
[INFO] [stderr]    |
[INFO] [stderr] 32 |             self.bits[(x as usize)] -= w;
[INFO] [stderr]    |                       ^          ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 32 -             self.bits[(x as usize)] -= w;
[INFO] [stderr] 32 +             self.bits[x as usize] -= w;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `proconlib` (lib) generated 2 warnings (run `cargo fix --lib -p proconlib` to apply 2 suggestions)
[INFO] [stderr] warning: `proconlib` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/proconlib-8cef11a1ca83518b)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test max_flow::tests::max_match_test ... ok
[INFO] [stdout] test bit::tests::bit_test ... ok
[INFO] [stdout] test union_find::tests::union_find_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests proconlib
[INFO] [stderr] warning: unnecessary parentheses around index expression
[INFO] [stderr]   --> src/bit.rs:24:23
[INFO] [stderr]    |
[INFO] [stderr] 24 |             self.bits[(x as usize)] += w;
[INFO] [stderr]    |                       ^          ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 24 -             self.bits[(x as usize)] += w;
[INFO] [stderr] 24 +             self.bits[x as usize] += w;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around index expression
[INFO] [stderr]   --> src/bit.rs:32:23
[INFO] [stderr]    |
[INFO] [stderr] 32 |             self.bits[(x as usize)] -= w;
[INFO] [stderr]    |                       ^          ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 32 -             self.bits[(x as usize)] -= w;
[INFO] [stderr] 32 +             self.bits[x as usize] -= w;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[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] running `Command { std: "docker" "inspect" "fdc3fed192750837257ecce1e18a89a421b6d75dd420699d34c609e8d64c67b2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdc3fed192750837257ecce1e18a89a421b6d75dd420699d34c609e8d64c67b2", kill_on_drop: false }`
[INFO] [stdout] fdc3fed192750837257ecce1e18a89a421b6d75dd420699d34c609e8d64c67b2