[INFO] cloning repository https://github.com/JonathanWoollett-Light/latex_classifier
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JonathanWoollett-Light/latex_classifier" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJonathanWoollett-Light%2Flatex_classifier", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJonathanWoollett-Light%2Flatex_classifier'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a0875a4321c91e48ed3e65e415a4abfc0c207a1a
[INFO] checking JonathanWoollett-Light/latex_classifier against try#3bb2879ea9e58d65b875f9a98df44f4a43ce2597 for pr-85387
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJonathanWoollett-Light%2Flatex_classifier" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JonathanWoollett-Light/latex_classifier on toolchain 3bb2879ea9e58d65b875f9a98df44f4a43ce2597
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JonathanWoollett-Light/latex_classifier
[INFO] finished tweaking git repo https://github.com/JonathanWoollett-Light/latex_classifier
[INFO] tweaked toml for git repo https://github.com/JonathanWoollett-Light/latex_classifier written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ordered-float v2.5.1
[INFO] [stderr]   Downloaded memoffset v0.6.4
[INFO] [stderr]   Downloaded num-complex v0.4.0
[INFO] [stderr]   Downloaded rayon v1.5.1
[INFO] [stderr]   Downloaded rayon-core v1.9.1
[INFO] [stderr]   Downloaded ndarray v0.14.0
[INFO] [stderr]   Downloaded num v0.4.0
[INFO] [stderr]   Downloaded priority-queue v1.1.1
[INFO] [stderr]   Downloaded simplers_optimization v0.4.2
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.5
[INFO] [stderr]   Downloaded num-bigint v0.4.0
[INFO] [stderr]   Downloaded num-rational v0.4.0
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.5
[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" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6207b9cd995adafef8149bfece3c3ad8f674912340cd4d5fa5a809aa371901d2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6207b9cd995adafef8149bfece3c3ad8f674912340cd4d5fa5a809aa371901d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6207b9cd995adafef8149bfece3c3ad8f674912340cd4d5fa5a809aa371901d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6207b9cd995adafef8149bfece3c3ad8f674912340cd4d5fa5a809aa371901d2", kill_on_drop: false }`
[INFO] [stdout] 6207b9cd995adafef8149bfece3c3ad8f674912340cd4d5fa5a809aa371901d2
[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" "+3bb2879ea9e58d65b875f9a98df44f4a43ce2597" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e2a3e7f6498ec3e311cb2d96f57234e49cbc4cb09357a664530266b46aad5a5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8e2a3e7f6498ec3e311cb2d96f57234e49cbc4cb09357a664530266b46aad5a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling ndarray v0.14.0
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling priority-queue v1.1.1
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking gif v0.11.2
[INFO] [stderr]     Checking ordered-float v2.5.1
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking num-complex v0.3.1
[INFO] [stderr]     Checking matrixmultiply v0.2.4
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking num-rational v0.3.2
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking num-format v0.4.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]     Checking simplers_optimization v0.4.2
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling phf_generator v0.8.0
[INFO] [stderr]     Checking num v0.4.0
[INFO] [stderr]     Checking jpeg-decoder v0.1.22
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]     Checking image v0.23.14
[INFO] [stderr]    Compiling phf_macros v0.8.0
[INFO] [stderr]     Checking phf v0.8.0
[INFO] [stderr]     Checking latex_classifier v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `simplers_optimization::Optimizer`
[INFO] [stdout]  --> tests/tests.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 5 |     use simplers_optimization::Optimizer;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fs`
[INFO] [stdout]  --> tests/tests.rs:7:15
[INFO] [stdout]   |
[INFO] [stdout] 7 |     use std::{fs, path::Path, time::Instant, usize};
[INFO] [stdout]   |               ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Luma`
[INFO] [stdout]  --> tests/tests.rs:9:30
[INFO] [stdout]   |
[INFO] [stdout] 9 |     use image::{ImageBuffer, Luma, Rgb};
[INFO] [stdout]   |                              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ndarray::Array`
[INFO] [stdout]   --> tests/tests.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     use ndarray::Array;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> tests/tests.rs:51:36
[INFO] [stdout]    |
[INFO] [stdout] 43 |         unsafe {
[INFO] [stdout]    |         ------ because it's nested under this `unsafe` block
[INFO] [stdout] ...
[INFO] [stdout] 51 |             let pixel_vec: &[u8] = unsafe { std::slice::from_raw_parts((pixels).ptr, (pixels).size) };
[INFO] [stdout]    |                                    ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.24s
[INFO] running `Command { std: "docker" "inspect" "8e2a3e7f6498ec3e311cb2d96f57234e49cbc4cb09357a664530266b46aad5a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e2a3e7f6498ec3e311cb2d96f57234e49cbc4cb09357a664530266b46aad5a5", kill_on_drop: false }`
[INFO] [stdout] 8e2a3e7f6498ec3e311cb2d96f57234e49cbc4cb09357a664530266b46aad5a5