[INFO] cloning repository https://github.com/MFattakhov/mandelbrot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MFattakhov/mandelbrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMFattakhov%2Fmandelbrot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMFattakhov%2Fmandelbrot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2b3acc8e8606e55d586a49046dc21dd63578d2f5
[INFO] checking MFattakhov/mandelbrot against master#a33907a7a5381473eec8bcfa0c56e05a856a911c for pr-151539
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMFattakhov%2Fmandelbrot" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/MFattakhov/mandelbrot
[INFO] finished tweaking git repo https://github.com/MFattakhov/mandelbrot
[INFO] tweaked toml for git repo https://github.com/MFattakhov/mandelbrot written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/MFattakhov/mandelbrot on toolchain a33907a7a5381473eec8bcfa0c56e05a856a911c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a33907a7a5381473eec8bcfa0c56e05a856a911c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/MFattakhov/mandelbrot 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" "+a33907a7a5381473eec8bcfa0c56e05a856a911c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro-crate v2.0.1
[INFO] [stderr]   Downloaded gsk4-sys v0.7.3
[INFO] [stderr]   Downloaded target-lexicon v0.12.13
[INFO] [stderr]   Downloaded graphene-sys v0.18.1
[INFO] [stderr]   Downloaded cfg-expr v0.15.6
[INFO] [stderr]   Downloaded graphene-rs v0.18.1
[INFO] [stderr]   Downloaded gsk4 v0.7.3
[INFO] [stderr]   Downloaded gdk4-sys v0.7.2
[INFO] [stderr]   Downloaded gtk4-sys v0.7.3
[INFO] [stderr]   Downloaded gdk4 v0.7.3
[INFO] [stderr]   Downloaded indicatif v0.17.7
[INFO] [stderr]   Downloaded gtk4-macros v0.7.2
[INFO] [stderr]   Downloaded gtk4 v0.7.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+a33907a7a5381473eec8bcfa0c56e05a856a911c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] aeb6f4bbda8f8e9c2dd811c27ad1ead3c868666ccc63dcf66b7171dfb05ca212
[INFO] running `Command { std: "docker" "start" "-a" "aeb6f4bbda8f8e9c2dd811c27ad1ead3c868666ccc63dcf66b7171dfb05ca212", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aeb6f4bbda8f8e9c2dd811c27ad1ead3c868666ccc63dcf66b7171dfb05ca212", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aeb6f4bbda8f8e9c2dd811c27ad1ead3c868666ccc63dcf66b7171dfb05ca212", kill_on_drop: false }`
[INFO] [stdout] aeb6f4bbda8f8e9c2dd811c27ad1ead3c868666ccc63dcf66b7171dfb05ca212
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+a33907a7a5381473eec8bcfa0c56e05a856a911c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b4d96128f27fe0c2c7831855b4d04103c6c950601f8c237a809dd6fcbb42e74
[INFO] running `Command { std: "docker" "start" "-a" "2b4d96128f27fe0c2c7831855b4d04103c6c950601f8c237a809dd6fcbb42e74", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.196
[INFO] [stderr]    Compiling winnow v0.5.35
[INFO] [stderr]    Compiling target-lexicon v0.12.13
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]     Checking smallvec v1.13.1
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling semver v1.0.21
[INFO] [stderr]    Compiling gio v0.18.4
[INFO] [stderr]    Compiling futures-macro v0.3.30
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]     Checking either v1.9.0
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking rayon v1.8.1
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling portable-atomic v1.6.0
[INFO] [stderr]     Checking weezl v0.1.8
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking bytemuck v1.14.1
[INFO] [stderr]     Checking half v2.2.1
[INFO] [stderr]     Checking bit_field v0.10.2
[INFO] [stderr]     Checking console v0.15.8
[INFO] [stderr]     Checking flume v0.11.0
[INFO] [stderr]     Checking png v0.17.11
[INFO] [stderr]     Checking gif v0.12.0
[INFO] [stderr]     Checking itertools v0.12.0
[INFO] [stderr]    Compiling cfg-expr v0.15.6
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]    Compiling field-offset v0.3.6
[INFO] [stderr]     Checking exr v1.71.0
[INFO] [stderr]     Checking qoi v0.4.1
[INFO] [stderr]     Checking jpeg-decoder v0.3.1
[INFO] [stderr]     Checking indicatif v0.17.7
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]     Checking tiff v0.9.1
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]    Compiling toml_datetime v0.6.3
[INFO] [stderr]    Compiling serde_spanned v0.6.5
[INFO] [stderr]    Compiling toml_edit v0.20.2
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]     Checking image v0.24.8
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling gtk4-macros v0.7.2
[INFO] [stderr]    Compiling toml v0.8.2
[INFO] [stderr]    Compiling proc-macro-crate v2.0.1
[INFO] [stderr]    Compiling system-deps v6.2.0
[INFO] [stderr]    Compiling glib-macros v0.18.5
[INFO] [stderr]    Compiling glib-sys v0.18.1
[INFO] [stderr]    Compiling gobject-sys v0.18.0
[INFO] [stderr]    Compiling gio-sys v0.18.1
[INFO] [stderr]    Compiling cairo-sys-rs v0.18.2
[INFO] [stderr]    Compiling gdk-pixbuf-sys v0.18.0
[INFO] [stderr]    Compiling pango-sys v0.18.0
[INFO] [stderr]    Compiling graphene-sys v0.18.1
[INFO] [stderr]    Compiling gdk4-sys v0.7.2
[INFO] [stderr]    Compiling gsk4-sys v0.7.3
[INFO] [stderr]    Compiling gtk4-sys v0.7.3
[INFO] [stderr]     Checking glib v0.18.5
[INFO] [stderr]     Checking cairo-rs v0.18.5
[INFO] [stderr]     Checking graphene-rs v0.18.1
[INFO] [stderr]     Checking pango v0.18.3
[INFO] [stderr]     Checking gdk-pixbuf v0.18.5
[INFO] [stderr]     Checking gdk4 v0.7.3
[INFO] [stderr]     Checking gsk4 v0.7.3
[INFO] [stderr]     Checking gtk4 v0.7.3
[INFO] [stderr]     Checking mandelbrot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `parse_pair` is never used
[INFO] [stdout]   --> src/render.rs:25:15
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub(crate) fn parse_pair<T: FromStr>(s: &str, sep: char) -> Option<(T, T)> {
[INFO] [stdout]    |               ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `parse_complex` is never used
[INFO] [stdout]   --> src/render.rs:35:15
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub(crate) fn parse_complex(s: &str) -> Option<Complex> {
[INFO] [stdout]    |               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_image` is never used
[INFO] [stdout]   --> src/render.rs:94:15
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub(crate) fn write_image(
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_image` is never used
[INFO] [stdout]   --> src/render.rs:94:15
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub(crate) fn write_image(
[INFO] [stdout]    |               ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 29s
[INFO] running `Command { std: "docker" "inspect" "2b4d96128f27fe0c2c7831855b4d04103c6c950601f8c237a809dd6fcbb42e74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b4d96128f27fe0c2c7831855b4d04103c6c950601f8c237a809dd6fcbb42e74", kill_on_drop: false }`
[INFO] [stdout] 2b4d96128f27fe0c2c7831855b4d04103c6c950601f8c237a809dd6fcbb42e74