[INFO] cloning repository https://github.com/zeh/art-generator
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zeh/art-generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzeh%2Fart-generator", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzeh%2Fart-generator'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 916ea37631dc9a0030187af06afad0914b0a39ff
[INFO] checking zeh/art-generator against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzeh%2Fart-generator" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zeh/art-generator
[INFO] finished tweaking git repo https://github.com/zeh/art-generator
[INFO] tweaked toml for git repo https://github.com/zeh/art-generator written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zeh/art-generator on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/zeh/art-generator 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f73df7bb32b100355ed3aaafbf92a7242d83aea9a2848084eb60b251ca6a5d7f
[INFO] running `Command { std: "docker" "start" "-a" "f73df7bb32b100355ed3aaafbf92a7242d83aea9a2848084eb60b251ca6a5d7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f73df7bb32b100355ed3aaafbf92a7242d83aea9a2848084eb60b251ca6a5d7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f73df7bb32b100355ed3aaafbf92a7242d83aea9a2848084eb60b251ca6a5d7f", kill_on_drop: false }`
[INFO] [stdout] f73df7bb32b100355ed3aaafbf92a7242d83aea9a2848084eb60b251ca6a5d7f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c31717b4976e9a2aac41573938f4c1e8b4a02fc7a77f4f84a77a80ba0815d6e1
[INFO] running `Command { std: "docker" "start" "-a" "c31717b4976e9a2aac41573938f4c1e8b4a02fc7a77f4f84a77a80ba0815d6e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling rayon-core v1.7.0
[INFO] [stderr]     Checking crossbeam-queue v0.2.1
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking crossbeam-epoch v0.8.0
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking either v1.5.3
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]     Checking crossbeam-deque v0.7.2
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]     Checking weezl v0.1.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking aho-corasick v0.7.8
[INFO] [stderr]     Checking deflate v0.8.6
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling getrandom v0.2.0
[INFO] [stderr]     Checking regex-syntax v0.6.14
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rayon v1.3.0
[INFO] [stderr]     Checking gif v0.11.1
[INFO] [stderr]     Checking png v0.16.7
[INFO] [stderr]     Checking bytes v0.5.6
[INFO] [stderr]     Checking bytemuck v1.2.0
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking bytes v0.6.0
[INFO] [stderr]     Checking strum v0.23.0
[INFO] [stderr]     Checking img-parts v0.2.3
[INFO] [stderr]     Checking regex v1.3.4
[INFO] [stderr]     Checking jpeg-decoder v0.1.18
[INFO] [stderr]     Checking color_processing v0.4.1
[INFO] [stderr]     Checking tiff v0.6.0
[INFO] [stderr]     Checking image v0.23.12
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling proc-macro-error v0.4.8
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.8
[INFO] [stderr]    Compiling strum_macros v0.23.1
[INFO] [stderr]    Compiling structopt-derive v0.4.2
[INFO] [stderr]     Checking structopt v0.3.9
[INFO] [stderr]     Checking random-art-generator v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::smooth::SmoothNumber`
[INFO] [stdout]  --> src/generator/utils/numbers/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use self::smooth::SmoothNumber;
[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: `self::smooth::SmoothNumber`
[INFO] [stdout]  --> src/generator/utils/numbers/mod.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub use self::smooth::SmoothNumber;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:185:2
[INFO] [stdout]     |
[INFO] [stdout] 185 | /     /// Painter to be used.
[INFO] [stdout] 186 | |     ///
[INFO] [stdout] 187 | |     /// This determines how new candidates will be painted when trying to approximate the target image. A selection of basic painters curren...
[INFO] [stdout] 188 | |     ///
[INFO] [stdout] ...   |
[INFO] [stdout] 192 | |     #[structopt(short, long, possible_values = &["circles", "strokes", "rects"], default_value = "rects")]
[INFO] [stdout] 193 | |     painter: String,
[INFO] [stdout]     | |___________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/generator/utils/parsing.rs:128:28
[INFO] [stdout]     |
[INFO] [stdout] 128 |             Ok(val) => Ok((values[0].clone(), val)),
[INFO] [stdout]     |                                     ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `random-art-generator` (bin "random-art-generator") due to 1 previous error; 2 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]    --> src/main.rs:185:2
[INFO] [stdout]     |
[INFO] [stdout] 185 | /     /// Painter to be used.
[INFO] [stdout] 186 | |     ///
[INFO] [stdout] 187 | |     /// This determines how new candidates will be painted when trying to approximate the target image. A selection of basic painters curren...
[INFO] [stdout] 188 | |     ///
[INFO] [stdout] ...   |
[INFO] [stdout] 192 | |     #[structopt(short, long, possible_values = &["circles", "strokes", "rects"], default_value = "rects")]
[INFO] [stdout] 193 | |     painter: String,
[INFO] [stdout]     | |___________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/generator/utils/parsing.rs:128:28
[INFO] [stdout]     |
[INFO] [stdout] 128 |             Ok(val) => Ok((values[0].clone(), val)),
[INFO] [stdout]     |                                     ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `random-art-generator` (bin "random-art-generator" test) due to 1 previous error; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "c31717b4976e9a2aac41573938f4c1e8b4a02fc7a77f4f84a77a80ba0815d6e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c31717b4976e9a2aac41573938f4c1e8b4a02fc7a77f4f84a77a80ba0815d6e1", kill_on_drop: false }`
[INFO] [stdout] c31717b4976e9a2aac41573938f4c1e8b4a02fc7a77f4f84a77a80ba0815d6e1
