[INFO] cloning repository https://github.com/OneMoreByte/qm-method-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/OneMoreByte/qm-method-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOneMoreByte%2Fqm-method-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOneMoreByte%2Fqm-method-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 98cd5beb1ecafb8650baa5d23f2390813c6e505d
[INFO] testing OneMoreByte/qm-method-rs against master#d7bd9cd469ff6871420007f091ef52fc32d2ca99 for pr-121417
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOneMoreByte%2Fqm-method-rs" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/OneMoreByte/qm-method-rs on toolchain d7bd9cd469ff6871420007f091ef52fc32d2ca99
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d7bd9cd469ff6871420007f091ef52fc32d2ca99" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/OneMoreByte/qm-method-rs
[INFO] finished tweaking git repo https://github.com/OneMoreByte/qm-method-rs
[INFO] tweaked toml for git repo https://github.com/OneMoreByte/qm-method-rs written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/OneMoreByte/qm-method-rs 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" "+d7bd9cd469ff6871420007f091ef52fc32d2ca99" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] testing OneMoreByte/qm-method-rs against try#393ef12c970fbc7f294cd96c35cb76f9591bc1d6 for pr-121417
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOneMoreByte%2Fqm-method-rs" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/OneMoreByte/qm-method-rs on toolchain 393ef12c970fbc7f294cd96c35cb76f9591bc1d6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/OneMoreByte/qm-method-rs
[INFO] finished tweaking git repo https://github.com/OneMoreByte/qm-method-rs
[INFO] tweaked toml for git repo https://github.com/OneMoreByte/qm-method-rs written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/OneMoreByte/qm-method-rs 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" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "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
[ERROR] error running command: no output for 300 seconds
[INFO] testing OneMoreByte/qm-method-rs against try#393ef12c970fbc7f294cd96c35cb76f9591bc1d6 for pr-121417
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FOneMoreByte%2Fqm-method-rs" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/OneMoreByte/qm-method-rs on toolchain 393ef12c970fbc7f294cd96c35cb76f9591bc1d6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/OneMoreByte/qm-method-rs
[INFO] finished tweaking git repo https://github.com/OneMoreByte/qm-method-rs
[INFO] tweaked toml for git repo https://github.com/OneMoreByte/qm-method-rs written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/OneMoreByte/qm-method-rs 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" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 40862535abd9b7213a6d9358d36fb7afb4bdd75ba9953273b673ebdbe93b59bb
[INFO] running `Command { std: "docker" "start" "-a" "40862535abd9b7213a6d9358d36fb7afb4bdd75ba9953273b673ebdbe93b59bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "40862535abd9b7213a6d9358d36fb7afb4bdd75ba9953273b673ebdbe93b59bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40862535abd9b7213a6d9358d36fb7afb4bdd75ba9953273b673ebdbe93b59bb", kill_on_drop: false }`
[INFO] [stdout] 40862535abd9b7213a6d9358d36fb7afb4bdd75ba9953273b673ebdbe93b59bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ece75321a6d654ef7097d2798949b7822b368470e66f56c6a67ea7096465b297
[INFO] running `Command { std: "docker" "start" "-a" "ece75321a6d654ef7097d2798949b7822b368470e66f56c6a67ea7096465b297", kill_on_drop: false }`
[INFO] [stderr]    Compiling qm-method-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/main.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         (sum)
[INFO] [stdout]    |         ^   ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 30 -         (sum)
[INFO] [stdout] 30 +         sum
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/main.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         (z)
[INFO] [stdout]    |         ^ ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 66 -         (z)
[INFO] [stdout] 66 +         z
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/main.rs:78:31
[INFO] [stdout]    |
[INFO] [stdout] 78 |             z.binary_eqv.push((((m / (t.pow(x as u32))) % 2) as i8))
[INFO] [stdout]    |                               ^                                   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 78 -             z.binary_eqv.push((((m / (t.pow(x as u32))) % 2) as i8))
[INFO] [stdout] 78 +             z.binary_eqv.push(((m / (t.pow(x as u32))) % 2) as i8)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/main.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |         (z)
[INFO] [stdout]    |         ^ ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 82 -         (z)
[INFO] [stdout] 82 +         z
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/main.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         (ones)
[INFO] [stdout]    |         ^    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 94 -         (ones)
[INFO] [stdout] 94 +         ones
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/main.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 |         (value)
[INFO] [stdout]     |         ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 113 -         (value)
[INFO] [stdout] 113 +         value
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/main.rs:124:9
[INFO] [stdout]     |
[INFO] [stdout] 124 |         (out)
[INFO] [stdout]     |         ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 124 -         (out)
[INFO] [stdout] 124 +         out
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/main.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 |         (s)
[INFO] [stdout]     |         ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 197 -         (s)
[INFO] [stdout] 197 +         s
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/main.rs:254:5
[INFO] [stdout]     |
[INFO] [stdout] 254 |     (terms)
[INFO] [stdout]     |     ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 254 -     (terms)
[INFO] [stdout] 254 +     terms
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/main.rs:296:5
[INFO] [stdout]     |
[INFO] [stdout] 296 |     (bin)
[INFO] [stdout]     |     ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 296 -     (bin)
[INFO] [stdout] 296 +     bin
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/main.rs:365:9
[INFO] [stdout]     |
[INFO] [stdout] 365 |         (find_factors(&temp, n))
[INFO] [stdout]     |         ^                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 365 -         (find_factors(&temp, n))
[INFO] [stdout] 365 +         find_factors(&temp, n)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/main.rs:368:9
[INFO] [stdout]     |
[INFO] [stdout] 368 |         (temp)
[INFO] [stdout]     |         ^    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 368 -         (temp)
[INFO] [stdout] 368 +         temp
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:258:16
[INFO] [stdout]     |
[INFO] [stdout] 258 | fn place_mterm(mut bin: &mut Vec<Vec<Term>>, m: u64, n: i8) {
[INFO] [stdout]     |                ----^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "ece75321a6d654ef7097d2798949b7822b368470e66f56c6a67ea7096465b297", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ece75321a6d654ef7097d2798949b7822b368470e66f56c6a67ea7096465b297", kill_on_drop: false }`
[INFO] [stdout] ece75321a6d654ef7097d2798949b7822b368470e66f56c6a67ea7096465b297
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07a9775bb22be2754aaa2843c55e20f9dc51d9b3afb3850e35e7bc7b30bac5f5
[INFO] running `Command { std: "docker" "start" "-a" "07a9775bb22be2754aaa2843c55e20f9dc51d9b3afb3850e35e7bc7b30bac5f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling qm-method-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/main.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |         (sum)
[INFO] [stdout]    |         ^   ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 30 -         (sum)
[INFO] [stdout] 30 +         sum
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/main.rs:66:9
[INFO] [stdout]    |
[INFO] [stdout] 66 |         (z)
[INFO] [stdout]    |         ^ ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 66 -         (z)
[INFO] [stdout] 66 +         z
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around method argument
[INFO] [stdout]   --> src/main.rs:78:31
[INFO] [stdout]    |
[INFO] [stdout] 78 |             z.binary_eqv.push((((m / (t.pow(x as u32))) % 2) as i8))
[INFO] [stdout]    |                               ^                                   ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 78 -             z.binary_eqv.push((((m / (t.pow(x as u32))) % 2) as i8))
[INFO] [stdout] 78 +             z.binary_eqv.push(((m / (t.pow(x as u32))) % 2) as i8)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/main.rs:82:9
[INFO] [stdout]    |
[INFO] [stdout] 82 |         (z)
[INFO] [stdout]    |         ^ ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 82 -         (z)
[INFO] [stdout] 82 +         z
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/main.rs:94:9
[INFO] [stdout]    |
[INFO] [stdout] 94 |         (ones)
[INFO] [stdout]    |         ^    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 94 -         (ones)
[INFO] [stdout] 94 +         ones
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/main.rs:113:9
[INFO] [stdout]     |
[INFO] [stdout] 113 |         (value)
[INFO] [stdout]     |         ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 113 -         (value)
[INFO] [stdout] 113 +         value
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/main.rs:124:9
[INFO] [stdout]     |
[INFO] [stdout] 124 |         (out)
[INFO] [stdout]     |         ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 124 -         (out)
[INFO] [stdout] 124 +         out
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/main.rs:197:9
[INFO] [stdout]     |
[INFO] [stdout] 197 |         (s)
[INFO] [stdout]     |         ^ ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 197 -         (s)
[INFO] [stdout] 197 +         s
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/main.rs:254:5
[INFO] [stdout]     |
[INFO] [stdout] 254 |     (terms)
[INFO] [stdout]     |     ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 254 -     (terms)
[INFO] [stdout] 254 +     terms
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/main.rs:296:5
[INFO] [stdout]     |
[INFO] [stdout] 296 |     (bin)
[INFO] [stdout]     |     ^   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 296 -     (bin)
[INFO] [stdout] 296 +     bin
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/main.rs:365:9
[INFO] [stdout]     |
[INFO] [stdout] 365 |         (find_factors(&temp, n))
[INFO] [stdout]     |         ^                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 365 -         (find_factors(&temp, n))
[INFO] [stdout] 365 +         find_factors(&temp, n)
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/main.rs:368:9
[INFO] [stdout]     |
[INFO] [stdout] 368 |         (temp)
[INFO] [stdout]     |         ^    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 368 -         (temp)
[INFO] [stdout] 368 +         temp
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:258:16
[INFO] [stdout]     |
[INFO] [stdout] 258 | fn place_mterm(mut bin: &mut Vec<Vec<Term>>, m: u64, n: i8) {
[INFO] [stdout]     |                ----^^^
[INFO] [stdout]     |                |
[INFO] [stdout]     |                help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "07a9775bb22be2754aaa2843c55e20f9dc51d9b3afb3850e35e7bc7b30bac5f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07a9775bb22be2754aaa2843c55e20f9dc51d9b3afb3850e35e7bc7b30bac5f5", kill_on_drop: false }`
[INFO] [stdout] 07a9775bb22be2754aaa2843c55e20f9dc51d9b3afb3850e35e7bc7b30bac5f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+393ef12c970fbc7f294cd96c35cb76f9591bc1d6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] aa458964494b31ea4499a9280a4034374aeee8058a256a80967b12739750bbf8
[INFO] running `Command { std: "docker" "start" "-a" "aa458964494b31ea4499a9280a4034374aeee8058a256a80967b12739750bbf8", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/main.rs:30:9
[INFO] [stderr]    |
[INFO] [stderr] 30 |         (sum)
[INFO] [stderr]    |         ^   ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 30 -         (sum)
[INFO] [stderr] 30 +         sum
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/main.rs:66:9
[INFO] [stderr]    |
[INFO] [stderr] 66 |         (z)
[INFO] [stderr]    |         ^ ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 66 -         (z)
[INFO] [stderr] 66 +         z
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]   --> src/main.rs:78:31
[INFO] [stderr]    |
[INFO] [stderr] 78 |             z.binary_eqv.push((((m / (t.pow(x as u32))) % 2) as i8))
[INFO] [stderr]    |                               ^                                   ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 78 -             z.binary_eqv.push((((m / (t.pow(x as u32))) % 2) as i8))
[INFO] [stderr] 78 +             z.binary_eqv.push(((m / (t.pow(x as u32))) % 2) as i8)
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/main.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 82 |         (z)
[INFO] [stderr]    |         ^ ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 82 -         (z)
[INFO] [stderr] 82 +         z
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> src/main.rs:94:9
[INFO] [stderr]    |
[INFO] [stderr] 94 |         (ones)
[INFO] [stderr]    |         ^    ^
[INFO] [stderr]    |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr] 94 -         (ones)
[INFO] [stderr] 94 +         ones
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/main.rs:113:9
[INFO] [stderr]     |
[INFO] [stderr] 113 |         (value)
[INFO] [stderr]     |         ^     ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 113 -         (value)
[INFO] [stderr] 113 +         value
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/main.rs:124:9
[INFO] [stderr]     |
[INFO] [stderr] 124 |         (out)
[INFO] [stderr]     |         ^   ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 124 -         (out)
[INFO] [stderr] 124 +         out
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/main.rs:197:9
[INFO] [stderr]     |
[INFO] [stderr] 197 |         (s)
[INFO] [stderr]     |         ^ ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 197 -         (s)
[INFO] [stderr] 197 +         s
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stdout] 
[INFO] [stderr]    --> src/main.rs:254:5
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr] 254 |     (terms)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     |     ^     ^
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 254 -     (terms)
[INFO] [stderr] 254 +     terms
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/main.rs:296:5
[INFO] [stderr]     |
[INFO] [stderr] 296 |     (bin)
[INFO] [stderr]     |     ^   ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 296 -     (bin)
[INFO] [stderr] 296 +     bin
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/main.rs:365:9
[INFO] [stderr]     |
[INFO] [stderr] 365 |         (find_factors(&temp, n))
[INFO] [stderr]     |         ^                      ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 365 -         (find_factors(&temp, n))
[INFO] [stderr] 365 +         find_factors(&temp, n)
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]    --> src/main.rs:368:9
[INFO] [stderr]     |
[INFO] [stderr] 368 |         (temp)
[INFO] [stderr]     |         ^    ^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 368 -         (temp)
[INFO] [stderr] 368 +         temp
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:258:16
[INFO] [stderr]     |
[INFO] [stderr] 258 | fn place_mterm(mut bin: &mut Vec<Vec<Term>>, m: u64, n: i8) {
[INFO] [stderr]     |                ----^^^
[INFO] [stderr]     |                |
[INFO] [stderr]     |                help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `qm-method-rs` (bin "qm-method-rs" test) generated 13 warnings (run `cargo fix --bin "qm-method-rs" --tests` to apply 13 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/qm_method_rs-b678915e9436105e)
[INFO] running `Command { std: "docker" "inspect" "aa458964494b31ea4499a9280a4034374aeee8058a256a80967b12739750bbf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa458964494b31ea4499a9280a4034374aeee8058a256a80967b12739750bbf8", kill_on_drop: false }`
[INFO] [stdout] aa458964494b31ea4499a9280a4034374aeee8058a256a80967b12739750bbf8