[INFO] cloning repository https://github.com/Sebbl0508/maze-generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Sebbl0508/maze-generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSebbl0508%2Fmaze-generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSebbl0508%2Fmaze-generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fec0493ef0560ef5452fd1ee3a8deab1b519eeed
[INFO] testing Sebbl0508/maze-generator against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSebbl0508%2Fmaze-generator" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Sebbl0508/maze-generator on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Sebbl0508/maze-generator
[INFO] finished tweaking git repo https://github.com/Sebbl0508/maze-generator
[INFO] tweaked toml for git repo https://github.com/Sebbl0508/maze-generator written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/Sebbl0508/maze-generator already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stderr]   Downloaded num-bigint v0.3.2
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[INFO] [stdout] 75326e9e9e80dc7898ce65a21e689ea152321092faa5ece8ee4f173fffd2344b
[INFO] running `Command { std: "docker" "start" "-a" "75326e9e9e80dc7898ce65a21e689ea152321092faa5ece8ee4f173fffd2344b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75326e9e9e80dc7898ce65a21e689ea152321092faa5ece8ee4f173fffd2344b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75326e9e9e80dc7898ce65a21e689ea152321092faa5ece8ee4f173fffd2344b", kill_on_drop: false }`
[INFO] [stdout] 75326e9e9e80dc7898ce65a21e689ea152321092faa5ece8ee4f173fffd2344b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 56588538b8b34ea7d03a0a622a89fcd4f1c920c98b9a2d3a96ae72cce264871c
[INFO] running `Command { std: "docker" "start" "-a" "56588538b8b34ea7d03a0a622a89fcd4f1c920c98b9a2d3a96ae72cce264871c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.99
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[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling rawpointer v0.1.0
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling ttf-parser v0.6.2
[INFO] [stderr]    Compiling bitflags v1.3.1
[INFO] [stderr]    Compiling custom_derive v0.1.7
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[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling gif v0.11.2
[INFO] [stderr]    Compiling owned_ttf_parser v0.6.0
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling rusttype v0.9.2
[INFO] [stderr]    Compiling png v0.16.8
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling num-complex v0.3.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling num-format v0.4.0
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rulinalg v0.4.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling num v0.3.1
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling tiff v0.6.1
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling imageproc v0.22.0
[INFO] [stderr]    Compiling maze_rewrite v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ImageFormat`
[INFO] [stdout]    --> src/algorithms/iterative.rs:213:30
[INFO] [stdout]     |
[INFO] [stdout] 213 |     use image::{ImageBuffer, ImageFormat, Rgb};
[INFO] [stdout]     |                              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RectPosition`
[INFO] [stdout]    --> src/algorithms/iterative.rs:215:22
[INFO] [stdout]     |
[INFO] [stdout] 215 |         rect::{Rect, RectPosition},
[INFO] [stdout]     |                      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `rect` is never read
[INFO] [stdout]    --> src/algorithms/iterative.rs:262:25
[INFO] [stdout]     |
[INFO] [stdout] 262 |                 let mut rect = Rect::at(0, 0).of_size(1, 1);
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pos`
[INFO] [stdout]  --> src/algorithms/iterative.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pos: Vec2<u32>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Cell` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/algorithms/iterative.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[derive(Debug, Clone)]
[INFO] [stdout]   |          ^^^^^  ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/algorithms/iterative.rs:195:12
[INFO] [stdout]     |
[INFO] [stdout] 195 |     pub fn new(x: u32, y: u32) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `opposite`
[INFO] [stdout]   --> src/util/direction.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn opposite(&self) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `all`
[INFO] [stdout]   --> src/util/direction.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn all() -> [Direction; 4] {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `random`
[INFO] [stdout]   --> src/util/direction.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn random() -> Direction {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 1m 12s
[INFO] running `Command { std: "docker" "inspect" "56588538b8b34ea7d03a0a622a89fcd4f1c920c98b9a2d3a96ae72cce264871c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56588538b8b34ea7d03a0a622a89fcd4f1c920c98b9a2d3a96ae72cce264871c", kill_on_drop: false }`
[INFO] [stdout] 56588538b8b34ea7d03a0a622a89fcd4f1c920c98b9a2d3a96ae72cce264871c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8d651be0e565b7d944b96512f35f6a5b88b1d57230d4a90b7593d23a85ee7cc
[INFO] running `Command { std: "docker" "start" "-a" "a8d651be0e565b7d944b96512f35f6a5b88b1d57230d4a90b7593d23a85ee7cc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling maze_rewrite v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ImageFormat`
[INFO] [stdout]    --> src/algorithms/iterative.rs:213:30
[INFO] [stdout]     |
[INFO] [stdout] 213 |     use image::{ImageBuffer, ImageFormat, Rgb};
[INFO] [stdout]     |                              ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `RectPosition`
[INFO] [stdout]    --> src/algorithms/iterative.rs:215:22
[INFO] [stdout]     |
[INFO] [stdout] 215 |         rect::{Rect, RectPosition},
[INFO] [stdout]     |                      ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `rect` is never read
[INFO] [stdout]    --> src/algorithms/iterative.rs:262:25
[INFO] [stdout]     |
[INFO] [stdout] 262 |                 let mut rect = Rect::at(0, 0).of_size(1, 1);
[INFO] [stdout]     |                         ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `pos`
[INFO] [stdout]  --> src/algorithms/iterative.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pos: Vec2<u32>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `Cell` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]  --> src/algorithms/iterative.rs:7:10
[INFO] [stdout]   |
[INFO] [stdout] 7 | #[derive(Debug, Clone)]
[INFO] [stdout]   |          ^^^^^  ^^^^^
[INFO] [stdout]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/algorithms/iterative.rs:195:12
[INFO] [stdout]     |
[INFO] [stdout] 195 |     pub fn new(x: u32, y: u32) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `opposite`
[INFO] [stdout]   --> src/util/direction.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn opposite(&self) -> Self {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `all`
[INFO] [stdout]   --> src/util/direction.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn all() -> [Direction; 4] {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `random`
[INFO] [stdout]   --> src/util/direction.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn random() -> Direction {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [optimized + debuginfo] target(s) in 22.20s
[INFO] running `Command { std: "docker" "inspect" "a8d651be0e565b7d944b96512f35f6a5b88b1d57230d4a90b7593d23a85ee7cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8d651be0e565b7d944b96512f35f6a5b88b1d57230d4a90b7593d23a85ee7cc", kill_on_drop: false }`
[INFO] [stdout] a8d651be0e565b7d944b96512f35f6a5b88b1d57230d4a90b7593d23a85ee7cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 05e4f5d179630fa3d1a2eaa4f9c501cfdc9c25584b7afa03e4177795ce2e0785
[INFO] running `Command { std: "docker" "start" "-a" "05e4f5d179630fa3d1a2eaa4f9c501cfdc9c25584b7afa03e4177795ce2e0785", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `ImageFormat`
[INFO] [stdout] 
[INFO] [stderr]    --> src/algorithms/iterative.rs:213:30
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr] 213 |     use image::{ImageBuffer, ImageFormat, Rgb};
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr]     |                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `RectPosition`
[INFO] [stderr]    --> src/algorithms/iterative.rs:215:22
[INFO] [stderr]     |
[INFO] [stderr] 215 |         rect::{Rect, RectPosition},
[INFO] [stderr]     |                      ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `rect` is never read
[INFO] [stderr]    --> src/algorithms/iterative.rs:262:25
[INFO] [stderr]     |
[INFO] [stderr] 262 |                 let mut rect = Rect::at(0, 0).of_size(1, 1);
[INFO] [stderr]     |                         ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `pos`
[INFO] [stderr]  --> src/algorithms/iterative.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pos: Vec2<u32>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `Cell` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]  --> src/algorithms/iterative.rs:7:10
[INFO] [stderr]   |
[INFO] [stderr] 7 | #[derive(Debug, Clone)]
[INFO] [stderr]   |          ^^^^^  ^^^^^
[INFO] [stderr]   = note: this warning originates in the derive macro `Debug` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/algorithms/iterative.rs:195:12
[INFO] [stderr]     |
[INFO] [stderr] 195 |     pub fn new(x: u32, y: u32) -> Self {
[INFO] [stderr]     |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `opposite`
[INFO] [stderr]   --> src/util/direction.rs:29:12
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn opposite(&self) -> Self {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `all`
[INFO] [stderr]   --> src/util/direction.rs:38:12
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub fn all() -> [Direction; 4] {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `random`
[INFO] [stderr]   --> src/util/direction.rs:47:12
[INFO] [stderr]    |
[INFO] [stderr] 47 |     pub fn random() -> Direction {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `maze_rewrite` (bin "maze_rewrite" test) generated 8 warnings
[INFO] [stderr]     Finished test [optimized + debuginfo] target(s) in 0.11s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/maze_rewrite-a889539297cc9e00)
[INFO] running `Command { std: "docker" "inspect" "05e4f5d179630fa3d1a2eaa4f9c501cfdc9c25584b7afa03e4177795ce2e0785", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05e4f5d179630fa3d1a2eaa4f9c501cfdc9c25584b7afa03e4177795ce2e0785", kill_on_drop: false }`
[INFO] [stdout] 05e4f5d179630fa3d1a2eaa4f9c501cfdc9c25584b7afa03e4177795ce2e0785