[INFO] cloning repository https://github.com/nattatatatan/mandelbrot2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nattatatatan/mandelbrot2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnattatatatan%2Fmandelbrot2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnattatatatan%2Fmandelbrot2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1bfcd9de5a47da8833c151d17b3a15e454eb82c4
[INFO] checking nattatatatan/mandelbrot2 against try#d7b15db413fd2070daa09a2c5b7f2ab38417429f for pr-144544
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnattatatatan%2Fmandelbrot2" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
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[INFO] started tweaking git repo https://github.com/nattatatatan/mandelbrot2
[INFO] finished tweaking git repo https://github.com/nattatatatan/mandelbrot2
[INFO] tweaked toml for git repo https://github.com/nattatatatan/mandelbrot2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nattatatatan/mandelbrot2 on toolchain d7b15db413fd2070daa09a2c5b7f2ab38417429f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d7b15db413fd2070daa09a2c5b7f2ab38417429f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/nattatatatan/mandelbrot2 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" "+d7b15db413fd2070daa09a2c5b7f2ab38417429f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+d7b15db413fd2070daa09a2c5b7f2ab38417429f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f668334d6cabfc1d0fa898a17fdae0a101e697642a790f36c011aa8399e7352e
[INFO] running `Command { std: "docker" "start" "-a" "f668334d6cabfc1d0fa898a17fdae0a101e697642a790f36c011aa8399e7352e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f668334d6cabfc1d0fa898a17fdae0a101e697642a790f36c011aa8399e7352e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f668334d6cabfc1d0fa898a17fdae0a101e697642a790f36c011aa8399e7352e", kill_on_drop: false }`
[INFO] [stdout] f668334d6cabfc1d0fa898a17fdae0a101e697642a790f36c011aa8399e7352e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+d7b15db413fd2070daa09a2c5b7f2ab38417429f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4d4e37ad8714c15bd39eeeb70c17486de039ed6b12e92a9728eeb321bea68b3
[INFO] running `Command { std: "docker" "start" "-a" "d4d4e37ad8714c15bd39eeeb70c17486de039ed6b12e92a9728eeb321bea68b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling xml-rs v0.8.20
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[INFO] [stderr]     Checking cl3 v0.6.5
[INFO] [stderr]     Checking libloading v0.7.4
[INFO] [stderr]    Compiling mandelbrot2 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking raw-window-handle v0.5.2
[INFO] [stderr]     Checking opencl3 v0.6.3
[INFO] [stderr]     Checking gfx_device_gl v0.16.2
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[INFO] [stderr]     Checking piston2d-gfx_graphics v0.72.0
[INFO] [stderr]     Checking pistoncore-window v0.47.1
[INFO] [stderr]     Checking pistoncore-event_loop v0.52.0
[INFO] [stderr]     Checking pistoncore-event_loop v0.53.1
[INFO] [stderr]     Checking piston v0.52.1
[INFO] [stderr]     Checking piston v0.53.2
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[INFO] [stderr]     Checking glutin v0.21.2
[INFO] [stderr]     Checking pistoncore-glutin_window v0.67.2
[INFO] [stderr]     Checking piston_window v0.116.0
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/mandelbrot.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 99 |     unsafe {
[INFO] [stdout]    |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Complex` is never constructed
[INFO] [stdout]  --> src/complex.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Complex {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `square`, and `magnitude_squared` are never used
[INFO] [stdout]   --> src/complex.rs:8:12
[INFO] [stdout]    |
[INFO] [stdout] 7  | impl Complex {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 8  |     pub fn new(re: f64, im: f64) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 |     pub fn square(self) -> Self {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn magnitude_squared(self) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/mandelbrot.rs:99:5
[INFO] [stdout]    |
[INFO] [stdout] 99 |     unsafe {
[INFO] [stdout]    |     ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Complex` is never constructed
[INFO] [stdout]  --> src/complex.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Complex {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `square`, and `magnitude_squared` are never used
[INFO] [stdout]   --> src/complex.rs:8:12
[INFO] [stdout]    |
[INFO] [stdout] 7  | impl Complex {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 8  |     pub fn new(re: f64, im: f64) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 11 |     pub fn square(self) -> Self {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     pub fn magnitude_squared(self) -> f64 {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 31s
[INFO] running `Command { std: "docker" "inspect" "d4d4e37ad8714c15bd39eeeb70c17486de039ed6b12e92a9728eeb321bea68b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4d4e37ad8714c15bd39eeeb70c17486de039ed6b12e92a9728eeb321bea68b3", kill_on_drop: false }`
[INFO] [stdout] d4d4e37ad8714c15bd39eeeb70c17486de039ed6b12e92a9728eeb321bea68b3