[INFO] cloning repository https://github.com/steffenhaug/array
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/steffenhaug/array" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteffenhaug%2Farray", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteffenhaug%2Farray'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 206363dfd9ebd023048e1d02defb129a2ab137ac
[INFO] testing steffenhaug/array against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsteffenhaug%2Farray" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/steffenhaug/array on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/steffenhaug/array
[INFO] finished tweaking git repo https://github.com/steffenhaug/array
[INFO] tweaked toml for git repo https://github.com/steffenhaug/array written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/steffenhaug/array already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a61f3f7fc5937b024707558509b6f75d394e596096100797d172089b4cfabd54
[INFO] running `Command { std: "docker" "start" "-a" "a61f3f7fc5937b024707558509b6f75d394e596096100797d172089b4cfabd54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a61f3f7fc5937b024707558509b6f75d394e596096100797d172089b4cfabd54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a61f3f7fc5937b024707558509b6f75d394e596096100797d172089b4cfabd54", kill_on_drop: false }`
[INFO] [stdout] a61f3f7fc5937b024707558509b6f75d394e596096100797d172089b4cfabd54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef5255df0f1d1dfdffaafe4ea21d807d54831281fb96ace0d1c04a8f0896c5b3
[INFO] running `Command { std: "docker" "start" "-a" "ef5255df0f1d1dfdffaafe4ea21d807d54831281fb96ace0d1c04a8f0896c5b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling matrixmultiply v0.2.2
[INFO] [stderr]    Compiling array v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:327:9
[INFO] [stdout]     |
[INFO] [stdout] 327 |     let mut d = b.slice(1..3, 1..4);
[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] error[E0594]: cannot assign to data in an index of `Array<PhantomData<&f64>, f64>`
[INFO] [stdout]    --> src/main.rs:328:5
[INFO] [stdout]     |
[INFO] [stdout] 328 |     d[[1, 1]] = 5.;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^ cannot assign
[INFO] [stdout]     |
[INFO] [stdout]     = help: trait `IndexMut` is required to modify indexed content, but it is not implemented for `Array<PhantomData<&f64>, f64>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0594`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `array`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "ef5255df0f1d1dfdffaafe4ea21d807d54831281fb96ace0d1c04a8f0896c5b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef5255df0f1d1dfdffaafe4ea21d807d54831281fb96ace0d1c04a8f0896c5b3", kill_on_drop: false }`
[INFO] [stdout] ef5255df0f1d1dfdffaafe4ea21d807d54831281fb96ace0d1c04a8f0896c5b3