[INFO] cloning repository https://github.com/BraydenJonsson/rust-matrix
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/BraydenJonsson/rust-matrix" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBraydenJonsson%2Frust-matrix", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBraydenJonsson%2Frust-matrix'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e3fe9905fc12d79d5fab244943e2e770dee7e9e7
[INFO] checking BraydenJonsson/rust-matrix against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FBraydenJonsson%2Frust-matrix" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/BraydenJonsson/rust-matrix
[INFO] finished tweaking git repo https://github.com/BraydenJonsson/rust-matrix
[INFO] tweaked toml for git repo https://github.com/BraydenJonsson/rust-matrix written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/BraydenJonsson/rust-matrix on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/BraydenJonsson/rust-matrix 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded trait-set v0.3.0
[INFO] [stderr]   Downloaded gen_ops v0.4.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.59
[INFO] [stderr]   Downloaded bigdecimal v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf91afa6781f9b17fff09e1084ed5e057306f49dbbe1cc071ea67c332e328523
[INFO] running `Command { std: "docker" "start" "-a" "bf91afa6781f9b17fff09e1084ed5e057306f49dbbe1cc071ea67c332e328523", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf91afa6781f9b17fff09e1084ed5e057306f49dbbe1cc071ea67c332e328523", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf91afa6781f9b17fff09e1084ed5e057306f49dbbe1cc071ea67c332e328523", kill_on_drop: false }`
[INFO] [stdout] bf91afa6781f9b17fff09e1084ed5e057306f49dbbe1cc071ea67c332e328523
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c56a29ee62162c1e30bd674a787ea6a40eb79baf17d67e4ab715bb6aaa359152
[INFO] running `Command { std: "docker" "start" "-a" "c56a29ee62162c1e30bd674a787ea6a40eb79baf17d67e4ab715bb6aaa359152", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling proc-macro2 v1.0.59
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling libm v0.2.7
[INFO] [stderr]    Compiling bigdecimal v0.4.1
[INFO] [stderr]     Checking gen_ops v0.4.0
[INFO] [stderr]    Compiling trait-set v0.3.0
[INFO] [stderr]     Checking matrix v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/complex.rs:263:66
[INFO] [stdout]     |
[INFO] [stdout] 263 |     for += call |a: &mut ComplexNumber<T>, b: &ComplexNumber<T>| (*a = a.clone() + *b);
[INFO] [stdout]     |                                                                  ^                   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 263 -     for += call |a: &mut ComplexNumber<T>, b: &ComplexNumber<T>| (*a = a.clone() + *b);
[INFO] [stdout] 263 +     for += call |a: &mut ComplexNumber<T>, b: &ComplexNumber<T>| *a = a.clone() + *b;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/complex.rs:265:66
[INFO] [stdout]     |
[INFO] [stdout] 265 |     for -= call |a: &mut ComplexNumber<T>, b: &ComplexNumber<T>| (*a = a.clone() - *b);
[INFO] [stdout]     |                                                                  ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 265 -     for -= call |a: &mut ComplexNumber<T>, b: &ComplexNumber<T>| (*a = a.clone() - *b);
[INFO] [stdout] 265 +     for -= call |a: &mut ComplexNumber<T>, b: &ComplexNumber<T>| *a = a.clone() - *b;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/complex.rs:267:66
[INFO] [stdout]     |
[INFO] [stdout] 267 |     for *= call |a: &mut ComplexNumber<T>, b: &ComplexNumber<T>| (*a = a.clone() * *b);
[INFO] [stdout]     |                                                                  ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 267 -     for *= call |a: &mut ComplexNumber<T>, b: &ComplexNumber<T>| (*a = a.clone() * *b);
[INFO] [stdout] 267 +     for *= call |a: &mut ComplexNumber<T>, b: &ComplexNumber<T>| *a = a.clone() * *b;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/complex.rs:269:66
[INFO] [stdout]     |
[INFO] [stdout] 269 |     for /= call |a: &mut ComplexNumber<T>, b: &ComplexNumber<T>| (*a = a.clone() / *b);
[INFO] [stdout]     |                                                                  ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 269 -     for /= call |a: &mut ComplexNumber<T>, b: &ComplexNumber<T>| (*a = a.clone() / *b);
[INFO] [stdout] 269 +     for /= call |a: &mut ComplexNumber<T>, b: &ComplexNumber<T>| *a = a.clone() / *b;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/complex.rs:279:51
[INFO] [stdout]     |
[INFO] [stdout] 279 |     for *= call |a: &mut ComplexNumber<T>, b: &T| (*a = a.clone() * *b);
[INFO] [stdout]     |                                                   ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 279 -     for *= call |a: &mut ComplexNumber<T>, b: &T| (*a = a.clone() * *b);
[INFO] [stdout] 279 +     for *= call |a: &mut ComplexNumber<T>, b: &T| *a = a.clone() * *b;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/complex.rs:282:51
[INFO] [stdout]     |
[INFO] [stdout] 282 |     for /= call |a: &mut ComplexNumber<T>, b: &T| (*a = a.clone() / *b);
[INFO] [stdout]     |                                                   ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 282 -     for /= call |a: &mut ComplexNumber<T>, b: &T| (*a = a.clone() / *b);
[INFO] [stdout] 282 +     for /= call |a: &mut ComplexNumber<T>, b: &T| *a = a.clone() / *b;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/complex.rs:263:66
[INFO] [stdout]     |
[INFO] [stdout] 263 |     for += call |a: &mut ComplexNumber<T>, b: &ComplexNumber<T>| (*a = a.clone() + *b);
[INFO] [stdout]     |                                                                  ^                   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 263 -     for += call |a: &mut ComplexNumber<T>, b: &ComplexNumber<T>| (*a = a.clone() + *b);
[INFO] [stdout] 263 +     for += call |a: &mut ComplexNumber<T>, b: &ComplexNumber<T>| *a = a.clone() + *b;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/complex.rs:265:66
[INFO] [stdout]     |
[INFO] [stdout] 265 |     for -= call |a: &mut ComplexNumber<T>, b: &ComplexNumber<T>| (*a = a.clone() - *b);
[INFO] [stdout]     |                                                                  ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 265 -     for -= call |a: &mut ComplexNumber<T>, b: &ComplexNumber<T>| (*a = a.clone() - *b);
[INFO] [stdout] 265 +     for -= call |a: &mut ComplexNumber<T>, b: &ComplexNumber<T>| *a = a.clone() - *b;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/complex.rs:267:66
[INFO] [stdout]     |
[INFO] [stdout] 267 |     for *= call |a: &mut ComplexNumber<T>, b: &ComplexNumber<T>| (*a = a.clone() * *b);
[INFO] [stdout]     |                                                                  ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 267 -     for *= call |a: &mut ComplexNumber<T>, b: &ComplexNumber<T>| (*a = a.clone() * *b);
[INFO] [stdout] 267 +     for *= call |a: &mut ComplexNumber<T>, b: &ComplexNumber<T>| *a = a.clone() * *b;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/complex.rs:269:66
[INFO] [stdout]     |
[INFO] [stdout] 269 |     for /= call |a: &mut ComplexNumber<T>, b: &ComplexNumber<T>| (*a = a.clone() / *b);
[INFO] [stdout]     |                                                                  ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 269 -     for /= call |a: &mut ComplexNumber<T>, b: &ComplexNumber<T>| (*a = a.clone() / *b);
[INFO] [stdout] 269 +     for /= call |a: &mut ComplexNumber<T>, b: &ComplexNumber<T>| *a = a.clone() / *b;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/complex.rs:279:51
[INFO] [stdout]     |
[INFO] [stdout] 279 |     for *= call |a: &mut ComplexNumber<T>, b: &T| (*a = a.clone() * *b);
[INFO] [stdout]     |                                                   ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 279 -     for *= call |a: &mut ComplexNumber<T>, b: &T| (*a = a.clone() * *b);
[INFO] [stdout] 279 +     for *= call |a: &mut ComplexNumber<T>, b: &T| *a = a.clone() * *b;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/complex.rs:282:51
[INFO] [stdout]     |
[INFO] [stdout] 282 |     for /= call |a: &mut ComplexNumber<T>, b: &T| (*a = a.clone() / *b);
[INFO] [stdout]     |                                                   ^                   ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 282 -     for /= call |a: &mut ComplexNumber<T>, b: &T| (*a = a.clone() / *b);
[INFO] [stdout] 282 +     for /= call |a: &mut ComplexNumber<T>, b: &T| *a = a.clone() / *b;
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.69s
[INFO] running `Command { std: "docker" "inspect" "c56a29ee62162c1e30bd674a787ea6a40eb79baf17d67e4ab715bb6aaa359152", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c56a29ee62162c1e30bd674a787ea6a40eb79baf17d67e4ab715bb6aaa359152", kill_on_drop: false }`
[INFO] [stdout] c56a29ee62162c1e30bd674a787ea6a40eb79baf17d67e4ab715bb6aaa359152
