[INFO] cloning repository https://github.com/muse254/mandelbrot [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/muse254/mandelbrot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuse254%2Fmandelbrot", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuse254%2Fmandelbrot'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 7248144f62b34ecb5f9cce0f4ca0587e38a7bfdf [INFO] testing muse254/mandelbrot against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmuse254%2Fmandelbrot" "/workspace/builds/worker-15/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/muse254/mandelbrot on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/muse254/mandelbrot [INFO] finished tweaking git repo https://github.com/muse254/mandelbrot [INFO] tweaked toml for git repo https://github.com/muse254/mandelbrot written to /workspace/builds/worker-15/source/Cargo.toml [INFO] crate git repo https://github.com/muse254/mandelbrot already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "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 num-iter v0.1.40 [INFO] [stderr] Downloaded crossbeam-queue v0.2.1 [INFO] [stderr] Downloaded hermit-abi v0.1.12 [INFO] [stderr] Downloaded rayon-core v1.7.0 [INFO] [stderr] Downloaded rayon v1.3.0 [INFO] [stderr] Downloaded jpeg-decoder v0.1.19 [INFO] [stderr] Downloaded inflate v0.2.0 [INFO] [stderr] Downloaded image v0.13.0 [INFO] [stderr] Downloaded png v0.7.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 425d66cc2818365f8263eeb69e136daa0280865e958f46fc71958a87cd546ff4 [INFO] running `Command { std: "docker" "start" "-a" "425d66cc2818365f8263eeb69e136daa0280865e958f46fc71958a87cd546ff4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "425d66cc2818365f8263eeb69e136daa0280865e958f46fc71958a87cd546ff4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "425d66cc2818365f8263eeb69e136daa0280865e958f46fc71958a87cd546ff4", kill_on_drop: false }` [INFO] [stdout] 425d66cc2818365f8263eeb69e136daa0280865e958f46fc71958a87cd546ff4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a63a73adc079a2a8f72f8ae9ad1f0e23068f1c1d438cf0283e32a346d4110ad7 [INFO] running `Command { std: "docker" "start" "-a" "a63a73adc079a2a8f72f8ae9ad1f0e23068f1c1d438cf0283e32a346d4110ad7", kill_on_drop: false }` [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling scopeguard v1.1.0 [INFO] [stderr] Compiling rayon-core v1.7.0 [INFO] [stderr] Compiling rustc-serialize v0.3.24 [INFO] [stderr] Compiling either v1.5.3 [INFO] [stderr] Compiling adler32 v1.0.4 [INFO] [stderr] Compiling color_quant v1.0.1 [INFO] [stderr] Compiling bitflags v0.7.0 [INFO] [stderr] Compiling inflate v0.2.0 [INFO] [stderr] Compiling lzw v0.10.0 [INFO] [stderr] Compiling scoped_threadpool v0.1.9 [INFO] [stderr] Compiling crossbeam v0.2.12 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling crossbeam-utils v0.7.2 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Compiling memoffset v0.5.4 [INFO] [stderr] Compiling crossbeam-epoch v0.8.2 [INFO] [stderr] Compiling num-iter v0.1.40 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling deflate v0.7.20 [INFO] [stderr] Compiling gif v0.9.2 [INFO] [stderr] Compiling crossbeam-queue v0.2.1 [INFO] [stderr] Compiling crossbeam-deque v0.7.3 [INFO] [stderr] Compiling num-traits v0.1.43 [INFO] [stderr] Compiling enum_primitive v0.1.1 [INFO] [stderr] Compiling png v0.7.0 [INFO] [stderr] Compiling rayon v1.3.0 [INFO] [stderr] Compiling num-bigint v0.1.44 [INFO] [stderr] Compiling num-complex v0.1.43 [INFO] [stderr] Compiling num-rational v0.1.42 [INFO] [stderr] Compiling num v0.1.42 [INFO] [stderr] Compiling jpeg-decoder v0.1.19 [INFO] [stderr] Compiling image v0.13.0 [INFO] [stderr] Compiling mandelbrot v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable `I` should have a snake case name [INFO] [stdout] --> src/main.rs:86:21 [INFO] [stdout] | [INFO] [stdout] 86 | (Ok(I),Ok(R)) => Some((I,R)), [INFO] [stdout] | ^ help: convert the identifier to snake case (notice the capitalization): `i` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable `R` should have a snake case name [INFO] [stdout] --> src/main.rs:86:27 [INFO] [stdout] | [INFO] [stdout] 86 | (Ok(I),Ok(R)) => Some((I,R)), [INFO] [stdout] | ^ help: convert the identifier to snake case: `r` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 14.37s [INFO] running `Command { std: "docker" "inspect" "a63a73adc079a2a8f72f8ae9ad1f0e23068f1c1d438cf0283e32a346d4110ad7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a63a73adc079a2a8f72f8ae9ad1f0e23068f1c1d438cf0283e32a346d4110ad7", kill_on_drop: false }` [INFO] [stdout] a63a73adc079a2a8f72f8ae9ad1f0e23068f1c1d438cf0283e32a346d4110ad7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4947472ae33b3d42bdd13cea212f31ca115432cb24c77bcacea79fa55c29a17d [INFO] running `Command { std: "docker" "start" "-a" "4947472ae33b3d42bdd13cea212f31ca115432cb24c77bcacea79fa55c29a17d", kill_on_drop: false }` [INFO] [stderr] Compiling mandelbrot v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0283]: type annotations needed [INFO] [stdout] --> src/main.rs:96:16 [INFO] [stdout] | [INFO] [stdout] 80 | fn parse_pair(s: &str, separator: char) -> Option<(T,T)>{ [INFO] [stdout] | ------- required by this bound in `parse_pair` [INFO] [stdout] ... [INFO] [stdout] 96 | assert_eq!(parse_pair("", ','), None); [INFO] [stdout] | ^^^^^^^^^^ cannot infer type for type parameter `T` declared on the function `parse_pair` [INFO] [stdout] | [INFO] [stdout] = note: cannot satisfy `_: FromStr` [INFO] [stdout] help: consider specifying the type argument in the function call [INFO] [stdout] | [INFO] [stdout] 96 | assert_eq!(parse_pair::("", ','), None); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0283`. [INFO] [stdout] [INFO] [stderr] error: could not compile `mandelbrot` [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `Command { std: "docker" "inspect" "4947472ae33b3d42bdd13cea212f31ca115432cb24c77bcacea79fa55c29a17d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4947472ae33b3d42bdd13cea212f31ca115432cb24c77bcacea79fa55c29a17d", kill_on_drop: false }` [INFO] [stdout] 4947472ae33b3d42bdd13cea212f31ca115432cb24c77bcacea79fa55c29a17d