[INFO] updating cached repository https://github.com/Axect/Peroxide
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] [stderr] From https://github.com/Axect/Peroxide
[INFO] [stderr]    9f47f90..0d6b535  master     -> master
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0d6b53592a133629b01e146cb518971acbd10eac
[INFO] checking Axect/Peroxide against master#c9edc02e8320a9e5799d185910ece7d491f524e6 for pr-64398
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FAxect%2FPeroxide" "work/builds/worker-4/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Axect/Peroxide on toolchain c9edc02e8320a9e5799d185910ece7d491f524e6-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Axect/Peroxide
[INFO] finished tweaking git repo https://github.com/Axect/Peroxide
[INFO] tweaked toml for git repo https://github.com/Axect/Peroxide written to work/builds/worker-4/source/Cargo.toml
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+c9edc02e8320a9e5799d185910ece7d491f524e6-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7e9927e21cfe08c2048013460ed69a302255ac156e371ef5ab045f37168568bd
[INFO] running `"docker" "start" "-a" "7e9927e21cfe08c2048013460ed69a302255ac156e371ef5ab045f37168568bd"`
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling peroxide v0.16.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking special v0.8.1
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking bstr v0.2.8
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr] warning: unused import: `std::iter`
[INFO] [stderr]    --> src/structure/matrix.rs:450:5
[INFO] [stderr]     |
[INFO] [stderr] 450 | use std::iter;
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `IterMut`, `Iter`
[INFO] [stderr]    --> src/structure/matrix.rs:451:18
[INFO] [stderr]     |
[INFO] [stderr] 451 | use std::slice::{Iter, IterMut};
[INFO] [stderr]     |                  ^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter`
[INFO] [stderr]    --> src/structure/matrix.rs:450:5
[INFO] [stderr]     |
[INFO] [stderr] 450 | use std::iter;
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `IterMut`, `Iter`
[INFO] [stderr]    --> src/structure/matrix.rs:451:18
[INFO] [stderr]     |
[INFO] [stderr] 451 | use std::slice::{Iter, IterMut};
[INFO] [stderr]     |                  ^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]     --> src/structure/matrix.rs:1970:13
[INFO] [stderr]      |
[INFO] [stderr] 1970 |         let mut p = self.mut_ptr();
[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: variable does not need to be mutable
[INFO] [stderr]     --> src/structure/matrix.rs:1970:13
[INFO] [stderr]      |
[INFO] [stderr] 1970 |         let mut p = self.mut_ptr();
[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]     Finished dev [unoptimized + debuginfo] target(s) in 14.56s
[INFO] running `"docker" "inspect" "7e9927e21cfe08c2048013460ed69a302255ac156e371ef5ab045f37168568bd"`
[INFO] running `"docker" "rm" "-f" "7e9927e21cfe08c2048013460ed69a302255ac156e371ef5ab045f37168568bd"`
[INFO] [stdout] 7e9927e21cfe08c2048013460ed69a302255ac156e371ef5ab045f37168568bd