[INFO] fetching crate quadratic 0.3.1...
[INFO] checking quadratic-0.3.1 against master#0a8629bff642c3c3b84bb644c0099194f063b627 for pr-86231
[INFO] extracting crate quadratic 0.3.1 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate quadratic 0.3.1 on toolchain 0a8629bff642c3c3b84bb644c0099194f063b627
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate quadratic 0.3.1
[INFO] finished tweaking crates.io crate quadratic 0.3.1
[INFO] tweaked toml for crates.io crate quadratic 0.3.1 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e4403ef565217593abbc49931641bcf78faf13d731583a8daea85f6dfaab70d
[INFO] running `Command { std: "docker" "start" "-a" "9e4403ef565217593abbc49931641bcf78faf13d731583a8daea85f6dfaab70d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e4403ef565217593abbc49931641bcf78faf13d731583a8daea85f6dfaab70d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e4403ef565217593abbc49931641bcf78faf13d731583a8daea85f6dfaab70d", kill_on_drop: false }`
[INFO] [stdout] 9e4403ef565217593abbc49931641bcf78faf13d731583a8daea85f6dfaab70d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7a542f0b3dbaf8626571d017de64a66853e7eaa457e9c322f6d600b2ac4d4b4
[INFO] running `Command { std: "docker" "start" "-a" "c7a542f0b3dbaf8626571d017de64a66853e7eaa457e9c322f6d600b2ac4d4b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking quadratic v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:17:26
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn two_over(n: usize) -> (i8) {
[INFO] [stdout]    |                          ^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:23:43
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn reciprocity(num: usize, den: usize) -> (i8) {
[INFO] [stdout]    |                                           ^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:17:26
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn two_over(n: usize) -> (i8) {
[INFO] [stdout]    |                          ^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:23:43
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn reciprocity(num: usize, den: usize) -> (i8) {
[INFO] [stdout]    |                                           ^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.21s
[INFO] running `Command { std: "docker" "inspect" "c7a542f0b3dbaf8626571d017de64a66853e7eaa457e9c322f6d600b2ac4d4b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7a542f0b3dbaf8626571d017de64a66853e7eaa457e9c322f6d600b2ac4d4b4", kill_on_drop: false }`
[INFO] [stdout] c7a542f0b3dbaf8626571d017de64a66853e7eaa457e9c322f6d600b2ac4d4b4