[INFO] cloning repository https://github.com/RW21/chaos-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RW21/chaos-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRW21%2Fchaos-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRW21%2Fchaos-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4fb37b2f6b33458f42811bccc7e50ba62294eb0e
[INFO] checking RW21/chaos-rust against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRW21%2Fchaos-rust" "/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/RW21/chaos-rust on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RW21/chaos-rust
[INFO] finished tweaking git repo https://github.com/RW21/chaos-rust
[INFO] tweaked toml for git repo https://github.com/RW21/chaos-rust written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/RW21/chaos-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f63fcea4f068425a37f335d46065a9d4809a5ae632e47e1761b7cc015b9e79f2
[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" "f63fcea4f068425a37f335d46065a9d4809a5ae632e47e1761b7cc015b9e79f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f63fcea4f068425a37f335d46065a9d4809a5ae632e47e1761b7cc015b9e79f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f63fcea4f068425a37f335d46065a9d4809a5ae632e47e1761b7cc015b9e79f2", kill_on_drop: false }`
[INFO] [stdout] f63fcea4f068425a37f335d46065a9d4809a5ae632e47e1761b7cc015b9e79f2
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 708ce512c1aed3f19370fbf1227c6f4f215abe3c54f4ce7c3e0af7f6e78cb4f6
[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" "708ce512c1aed3f19370fbf1227c6f4f215abe3c54f4ce7c3e0af7f6e78cb4f6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.58
[INFO] [stderr]    Compiling const_fn v0.4.4
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.69
[INFO] [stderr]    Compiling bumpalo v3.4.0
[INFO] [stderr]     Checking adler32 v1.2.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.69
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking color_quant v1.1.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking bytemuck v1.4.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking getrandom v0.2.0
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking threadpool v1.8.1
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[INFO] [stderr]     Checking gif v0.11.1
[INFO] [stderr]     Checking directories v2.0.2
[INFO] [stderr]     Checking rand_core v0.6.0
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking png v0.16.8
[INFO] [stderr]     Checking rand v0.8.0
[INFO] [stderr]    Compiling quote v1.0.8
[INFO] [stderr]     Checking confy v0.4.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking rayon-core v1.9.0
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[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.69
[INFO] [stderr]     Checking jpeg-decoder v0.1.20
[INFO] [stderr]     Checking tiff v0.6.1
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.69
[INFO] [stderr]    Compiling serde_derive v1.0.119
[INFO] [stderr]     Checking image v0.23.12
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.69
[INFO] [stderr]     Checking js-sys v0.3.46
[INFO] [stderr]     Checking web-sys v0.3.46
[INFO] [stderr]     Checking chaos_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `prohibited_new_edge` is never read
[INFO] [stdout]   --> src/chaos.rs:83:17
[INFO] [stdout]    |
[INFO] [stdout] 83 |                 prohibited_new_edge = prohibited_new_edge.rem_euclid(config.edges as i32);
[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: unused variable: `current_edge`
[INFO] [stdout]   --> src/chaos.rs:54:21
[INFO] [stdout]    |
[INFO] [stdout] 54 |             let mut current_edge = 0;
[INFO] [stdout]    |                     ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_edge`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `same_edge_cannot_be_chosen_next`
[INFO] [stdout]   --> src/chaos.rs:65:21
[INFO] [stdout]    |
[INFO] [stdout] 65 |             let mut same_edge_cannot_be_chosen_next = |previous_point: &Point| -> Point {
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_same_edge_cannot_be_chosen_next`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `edge_one_away_cannot_be_chosen_next`
[INFO] [stdout]   --> src/chaos.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |             let mut edge_one_away_cannot_be_chosen_next = |previous_point: &Point| -> Point {
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_edge_one_away_cannot_be_chosen_next`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]    --> src/chaos.rs:158:13
[INFO] [stdout]     |
[INFO] [stdout] 158 |         let width = 1024;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/chaos.rs:54:17
[INFO] [stdout]    |
[INFO] [stdout] 54 |             let mut current_edge = 0;
[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] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/chaos.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 |             let mut same_edge_cannot_be_chosen_next = |previous_point: &Point| -> Point {
[INFO] [stdout]    |                 ----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/chaos.rs:78:17
[INFO] [stdout]    |
[INFO] [stdout] 78 |             let mut edge_one_away_cannot_be_chosen_next = |previous_point: &Point| -> Point {
[INFO] [stdout]    |                 ----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `prohibited_new_edge` is never read
[INFO] [stdout]   --> src/chaos.rs:83:17
[INFO] [stdout]    |
[INFO] [stdout] 83 |                 prohibited_new_edge = prohibited_new_edge.rem_euclid(config.edges as i32);
[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: unused variable: `current_edge`
[INFO] [stdout]   --> src/chaos.rs:54:21
[INFO] [stdout]    |
[INFO] [stdout] 54 |             let mut current_edge = 0;
[INFO] [stdout]    |                     ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_current_edge`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `same_edge_cannot_be_chosen_next`
[INFO] [stdout]   --> src/chaos.rs:65:21
[INFO] [stdout]    |
[INFO] [stdout] 65 |             let mut same_edge_cannot_be_chosen_next = |previous_point: &Point| -> Point {
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_same_edge_cannot_be_chosen_next`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `edge_one_away_cannot_be_chosen_next`
[INFO] [stdout]   --> src/chaos.rs:78:21
[INFO] [stdout]    |
[INFO] [stdout] 78 |             let mut edge_one_away_cannot_be_chosen_next = |previous_point: &Point| -> Point {
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_edge_one_away_cannot_be_chosen_next`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]    --> src/chaos.rs:158:13
[INFO] [stdout]     |
[INFO] [stdout] 158 |         let width = 1024;
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/chaos.rs:54:17
[INFO] [stdout]    |
[INFO] [stdout] 54 |             let mut current_edge = 0;
[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] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/chaos.rs:65:17
[INFO] [stdout]    |
[INFO] [stdout] 65 |             let mut same_edge_cannot_be_chosen_next = |previous_point: &Point| -> Point {
[INFO] [stdout]    |                 ----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/chaos.rs:78:17
[INFO] [stdout]    |
[INFO] [stdout] 78 |             let mut edge_one_away_cannot_be_chosen_next = |previous_point: &Point| -> Point {
[INFO] [stdout]    |                 ----^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `convert_to_index`
[INFO] [stdout]    --> src/chaos.rs:156:8
[INFO] [stdout]     |
[INFO] [stdout] 156 |     fn convert_to_index(&self, point: &Self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `convert_to_index`
[INFO] [stdout]    --> src/chaos.rs:156:8
[INFO] [stdout]     |
[INFO] [stdout] 156 |     fn convert_to_index(&self, point: &Self) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 56.80s
[INFO] running `Command { std: "docker" "inspect" "708ce512c1aed3f19370fbf1227c6f4f215abe3c54f4ce7c3e0af7f6e78cb4f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "708ce512c1aed3f19370fbf1227c6f4f215abe3c54f4ce7c3e0af7f6e78cb4f6", kill_on_drop: false }`
[INFO] [stdout] 708ce512c1aed3f19370fbf1227c6f4f215abe3c54f4ce7c3e0af7f6e78cb4f6