[INFO] cloning repository https://github.com/JonathanWoollett-Light/splitter
[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/splitter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJonathanWoollett-Light%2Fsplitter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJonathanWoollett-Light%2Fsplitter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6eccaaa90a0d98f51be2c00267dd0f88e99b7793
[INFO] checking JonathanWoollett-Light/splitter against c319ab3d7cf6bd67099fd3635f0e3c0fccb07e40 for pr-160391-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJonathanWoollett-Light%2Fsplitter" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/JonathanWoollett-Light/splitter
[INFO] finished tweaking git repo https://github.com/JonathanWoollett-Light/splitter
[INFO] tweaked toml for git repo https://github.com/JonathanWoollett-Light/splitter written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/JonathanWoollett-Light/splitter on toolchain c319ab3d7cf6bd67099fd3635f0e3c0fccb07e40
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c319ab3d7cf6bd67099fd3635f0e3c0fccb07e40" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/JonathanWoollett-Light/splitter 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" "+c319ab3d7cf6bd67099fd3635f0e3c0fccb07e40" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded inflate v0.4.5
[INFO] [stderr]   Downloaded num-derive v0.2.5
[INFO] [stderr]   Downloaded image v0.22.4
[INFO] [stderr]   Downloaded tiff v0.3.1
[INFO] [stderr]   Downloaded png v0.15.3
[INFO] [stderr]   Downloaded num-iter v0.1.40
[INFO] [stderr]   Downloaded num-rational v0.2.3
[INFO] [stderr]   Downloaded rayon-core v1.7.0
[INFO] [stderr]   Downloaded crossbeam-queue v0.2.1
[INFO] [stderr]   Downloaded jpeg-decoder v0.1.18
[INFO] [stderr]   Downloaded rayon v1.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c0af3998e971868164375a7dfb646c9933ddd1a3bdb00fa2041266763dc1eeab" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 2f5d78d7228d88d32ae8d0eefbf66ff138cc179e51d786df43af9d3e9f3a22f2
[INFO] running `Command { std: "docker" "start" "2f5d78d7228d88d32ae8d0eefbf66ff138cc179e51d786df43af9d3e9f3a22f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f5d78d7228d88d32ae8d0eefbf66ff138cc179e51d786df43af9d3e9f3a22f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2f5d78d7228d88d32ae8d0eefbf66ff138cc179e51d786df43af9d3e9f3a22f2" "/opt/rustwide/cargo-home/bin/cargo" "+c319ab3d7cf6bd67099fd3635f0e3c0fccb07e40" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f5d78d7228d88d32ae8d0eefbf66ff138cc179e51d786df43af9d3e9f3a22f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2f5d78d7228d88d32ae8d0eefbf66ff138cc179e51d786df43af9d3e9f3a22f2" "/opt/rustwide/cargo-home/bin/cargo" "+c319ab3d7cf6bd67099fd3635f0e3c0fccb07e40" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]    Compiling num-derive v0.2.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking adler32 v1.0.4
[INFO] [stderr]    Compiling crc32fast v1.2.0
[INFO] [stderr]     Checking lzw v0.10.0
[INFO] [stderr]     Checking color_quant v1.0.1
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking inflate v0.4.5
[INFO] [stderr]     Checking deflate v0.7.20
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking gif v0.10.3
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling num-rational v0.2.3
[INFO] [stderr]     Checking png v0.15.3
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking tiff v0.3.1
[INFO] [stderr]     Checking jpeg-decoder v0.1.18
[INFO] [stderr]     Checking image v0.22.4
[INFO] [stderr]     Checking splitter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `itertools::izip`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use itertools::izip;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Rgb`
[INFO] [stdout]  --> src/main.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 | use image::{ImageBuffer, Rgb,Luma};
[INFO] [stdout]   |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/main.rs:161:65
[INFO] [stdout]     |
[INFO] [stdout] 161 |             let mut lower_x = symbol.iter().fold(width, |min,x| (if x.0 < min { x.0 } else { min }));
[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] 161 -             let mut lower_x = symbol.iter().fold(width, |min,x| (if x.0 < min { x.0 } else { min }));
[INFO] [stdout] 161 +             let mut lower_x = symbol.iter().fold(width, |min,x| if x.0 < min { x.0 } else { min });
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/main.rs:162:66
[INFO] [stdout]     |
[INFO] [stdout] 162 |             let mut lower_y = symbol.iter().fold(height, |min,x| (if x.1 < min { x.1 } else { min }));
[INFO] [stdout]     |                                                                  ^                                 ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 162 -             let mut lower_y = symbol.iter().fold(height, |min,x| (if x.1 < min { x.1 } else { min }));
[INFO] [stdout] 162 +             let mut lower_y = symbol.iter().fold(height, |min,x| if x.1 < min { x.1 } else { min });
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/main.rs:163:66
[INFO] [stdout]     |
[INFO] [stdout] 163 |             let mut upper_x = symbol.iter().fold(0usize, |max,x| (if x.0 > max { x.0 } else { max }));
[INFO] [stdout]     |                                                                  ^                                 ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 163 -             let mut upper_x = symbol.iter().fold(0usize, |max,x| (if x.0 > max { x.0 } else { max }));
[INFO] [stdout] 163 +             let mut upper_x = symbol.iter().fold(0usize, |max,x| if x.0 > max { x.0 } else { max });
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/main.rs:164:66
[INFO] [stdout]     |
[INFO] [stdout] 164 |             let mut upper_y = symbol.iter().fold(0usize, |max,x| (if x.1 > max { x.1 } else { max }));
[INFO] [stdout]     |                                                                  ^                                 ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 164 -             let mut upper_y = symbol.iter().fold(0usize, |max,x| (if x.1 > max { x.1 } else { max }));
[INFO] [stdout] 164 +             let mut upper_y = symbol.iter().fold(0usize, |max,x| if x.1 > max { x.1 } else { max });
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `itertools::izip`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use itertools::izip;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Rgb`
[INFO] [stdout]  --> src/main.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 | use image::{ImageBuffer, Rgb,Luma};
[INFO] [stdout]   |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs::File`
[INFO] [stdout]  --> src/main.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::fs::File;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/main.rs:161:65
[INFO] [stdout]     |
[INFO] [stdout] 161 |             let mut lower_x = symbol.iter().fold(width, |min,x| (if x.0 < min { x.0 } else { min }));
[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] 161 -             let mut lower_x = symbol.iter().fold(width, |min,x| (if x.0 < min { x.0 } else { min }));
[INFO] [stdout] 161 +             let mut lower_x = symbol.iter().fold(width, |min,x| if x.0 < min { x.0 } else { min });
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/main.rs:162:66
[INFO] [stdout]     |
[INFO] [stdout] 162 |             let mut lower_y = symbol.iter().fold(height, |min,x| (if x.1 < min { x.1 } else { min }));
[INFO] [stdout]     |                                                                  ^                                 ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 162 -             let mut lower_y = symbol.iter().fold(height, |min,x| (if x.1 < min { x.1 } else { min }));
[INFO] [stdout] 162 +             let mut lower_y = symbol.iter().fold(height, |min,x| if x.1 < min { x.1 } else { min });
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/main.rs:163:66
[INFO] [stdout]     |
[INFO] [stdout] 163 |             let mut upper_x = symbol.iter().fold(0usize, |max,x| (if x.0 > max { x.0 } else { max }));
[INFO] [stdout]     |                                                                  ^                                 ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 163 -             let mut upper_x = symbol.iter().fold(0usize, |max,x| (if x.0 > max { x.0 } else { max }));
[INFO] [stdout] 163 +             let mut upper_x = symbol.iter().fold(0usize, |max,x| if x.0 > max { x.0 } else { max });
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/main.rs:164:66
[INFO] [stdout]     |
[INFO] [stdout] 164 |             let mut upper_y = symbol.iter().fold(0usize, |max,x| (if x.1 > max { x.1 } else { max }));
[INFO] [stdout]     |                                                                  ^                                 ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 164 -             let mut upper_y = symbol.iter().fold(0usize, |max,x| (if x.1 > max { x.1 } else { max }));
[INFO] [stdout] 164 +             let mut upper_y = symbol.iter().fold(0usize, |max,x| if x.1 > max { x.1 } else { max });
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]    --> src/main.rs:206:116
[INFO] [stdout]     |
[INFO] [stdout] 206 | ...ize,usize),(usize,usize))>,width:usize,height:usize) -> Vec<ImageBuffer<Luma<u8>,Vec<u8>>> {
[INFO] [stdout]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]    --> src/main.rs:206:128
[INFO] [stdout]     |
[INFO] [stdout] 206 | ...size,usize))>,width:usize,height:usize) -> Vec<ImageBuffer<Luma<u8>,Vec<u8>>> {
[INFO] [stdout]     |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]    --> src/main.rs:206:116
[INFO] [stdout]     |
[INFO] [stdout] 206 | ...ize,usize),(usize,usize))>,width:usize,height:usize) -> Vec<ImageBuffer<Luma<u8>,Vec<u8>>> {
[INFO] [stdout]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `height`
[INFO] [stdout]    --> src/main.rs:206:128
[INFO] [stdout]     |
[INFO] [stdout] 206 | ...size,usize))>,width:usize,height:usize) -> Vec<ImageBuffer<Luma<u8>,Vec<u8>>> {
[INFO] [stdout]     |                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_height`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.32s
[INFO] running `Command { std: "docker" "inspect" "2f5d78d7228d88d32ae8d0eefbf66ff138cc179e51d786df43af9d3e9f3a22f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f5d78d7228d88d32ae8d0eefbf66ff138cc179e51d786df43af9d3e9f3a22f2", kill_on_drop: false }`
[INFO] [stdout] 2f5d78d7228d88d32ae8d0eefbf66ff138cc179e51d786df43af9d3e9f3a22f2
