[INFO] cloning repository https://github.com/thara/mandelbrot-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thara/mandelbrot-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 1) [INFO] cloning repository https://github.com/thara/mandelbrot-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thara/mandelbrot-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 2) [INFO] cloning repository https://github.com/thara/mandelbrot-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thara/mandelbrot-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 3) [INFO] cloning repository https://github.com/thara/mandelbrot-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thara/mandelbrot-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 4) [INFO] cloning repository https://github.com/thara/mandelbrot-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thara/mandelbrot-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 5) [INFO] cloning repository https://github.com/thara/mandelbrot-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thara/mandelbrot-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust'... [INFO] [stderr] error: failed to write new configuration file /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust/config.lock [INFO] [stderr] fatal: could not set 'core.repositoryformatversion' to '0' [WARN] Retrying crate fetch in 3 seconds (attempt 6) [INFO] cloning repository https://github.com/thara/mandelbrot-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thara/mandelbrot-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 7) [INFO] cloning repository https://github.com/thara/mandelbrot-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thara/mandelbrot-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust'... [INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust: No space left on device [WARN] Retrying crate fetch in 3 seconds (attempt 8) [INFO] cloning repository https://github.com/thara/mandelbrot-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thara/mandelbrot-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 86144d0cc5c9da1850cb0205d8b75c0ecb514a85 [INFO] checking thara/mandelbrot-rust against master#cccf075eba88363269e8589ebb8d40874cc542d8 for pr-142681 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthara%2Fmandelbrot-rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/thara/mandelbrot-rust [INFO] finished tweaking git repo https://github.com/thara/mandelbrot-rust [INFO] tweaked toml for git repo https://github.com/thara/mandelbrot-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/thara/mandelbrot-rust on toolchain cccf075eba88363269e8589ebb8d40874cc542d8 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cccf075eba88363269e8589ebb8d40874cc542d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/thara/mandelbrot-rust 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" "+cccf075eba88363269e8589ebb8d40874cc542d8" "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 inflate v0.4.4 [INFO] [stderr] Downloaded num-derive v0.2.3 [INFO] [stderr] Downloaded proc-macro2 v0.4.25 [INFO] [stderr] Downloaded tiff v0.2.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+cccf075eba88363269e8589ebb8d40874cc542d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7ec0e10fa9cd97733c4aff3cf0dfaceb662ff73db38318ef4771c85ff88a9e80 [INFO] running `Command { std: "docker" "start" "-a" "7ec0e10fa9cd97733c4aff3cf0dfaceb662ff73db38318ef4771c85ff88a9e80", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7ec0e10fa9cd97733c4aff3cf0dfaceb662ff73db38318ef4771c85ff88a9e80", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7ec0e10fa9cd97733c4aff3cf0dfaceb662ff73db38318ef4771c85ff88a9e80", kill_on_drop: false }` [INFO] [stdout] 7ec0e10fa9cd97733c4aff3cf0dfaceb662ff73db38318ef4771c85ff88a9e80 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+cccf075eba88363269e8589ebb8d40874cc542d8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 806c10971f175b0b23c6a6d05195ecc25a83a4c79535fe65c96214164286c9a1 [INFO] running `Command { std: "docker" "start" "-a" "806c10971f175b0b23c6a6d05195ecc25a83a4c79535fe65c96214164286c9a1", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.47 [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Checking cfg-if v0.1.6 [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Checking rand_core v0.3.0 [INFO] [stderr] Compiling autocfg v0.1.2 [INFO] [stderr] Checking nodrop v0.1.13 [INFO] [stderr] Checking lazy_static v1.2.0 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Compiling proc-macro2 v0.4.25 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling rayon-core v1.4.1 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking crossbeam-utils v0.2.2 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Checking byteorder v1.2.7 [INFO] [stderr] Compiling num-iter v0.1.37 [INFO] [stderr] Compiling num-bigint v0.2.2 [INFO] [stderr] Checking stable_deref_trait v1.1.1 [INFO] [stderr] Checking smallvec v0.6.7 [INFO] [stderr] Checking crossbeam-utils v0.6.3 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Checking owning_ref v0.4.0 [INFO] [stderr] Compiling num-rational v0.2.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand v0.6.4 [INFO] [stderr] Compiling num-derive v0.2.3 [INFO] [stderr] Checking adler32 v1.0.3 [INFO] [stderr] Compiling rayon v1.0.3 [INFO] [stderr] Checking lock_api v0.1.5 [INFO] [stderr] Checking either v1.5.0 [INFO] [stderr] Checking lzw v0.10.0 [INFO] [stderr] Compiling num-complex v0.2.1 [INFO] [stderr] Checking inflate v0.4.4 [INFO] [stderr] Checking deflate v0.7.19 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Checking color_quant v1.0.1 [INFO] [stderr] Checking safe-transmute v0.10.1 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking scoped_threadpool v0.1.9 [INFO] [stderr] Compiling quote v0.6.10 [INFO] [stderr] Checking gif v0.10.1 [INFO] [stderr] Compiling rand_pcg v0.1.1 [INFO] [stderr] Compiling parking_lot_core v0.4.0 [INFO] [stderr] Compiling syn v0.15.26 [INFO] [stderr] Checking crossbeam-epoch v0.3.1 [INFO] [stderr] Checking crossbeam-epoch v0.7.0 [INFO] [stderr] Checking num_cpus v1.9.0 [INFO] [stderr] Checking rand_os v0.1.1 [INFO] [stderr] Checking png v0.14.0 [INFO] [stderr] Checking crossbeam-deque v0.6.3 [INFO] [stderr] Checking crossbeam-deque v0.2.0 [INFO] [stderr] Checking num v0.2.0 [INFO] [stderr] Checking parking_lot v0.7.1 [INFO] [stderr] Checking crossbeam-channel v0.3.6 [INFO] [stderr] Checking jpeg-decoder v0.1.15 [INFO] [stderr] Checking crossbeam v0.6.0 [INFO] [stderr] Checking tiff v0.2.1 [INFO] [stderr] Checking image v0.21.0 [INFO] [stderr] Checking mandelbrot v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:120:5 [INFO] [stdout] | [INFO] [stdout] 120 | / encoder.encode( [INFO] [stdout] 121 | | &pixels, [INFO] [stdout] 122 | | bounds.0 as u32, [INFO] [stdout] 123 | | bounds.1 as u32, [INFO] [stdout] 124 | | ColorType::Gray(8), [INFO] [stdout] 125 | | ); [INFO] [stdout] | |_____^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 120 | let _ = encoder.encode( [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:157:9 [INFO] [stdout] | [INFO] [stdout] 157 | / crossbeam::scope(|spawner| { [INFO] [stdout] 158 | | for (i, band) in bands.into_iter().enumerate() { [INFO] [stdout] 159 | | let top = rows_per_band * i; [INFO] [stdout] 160 | | let height = band.len() / bounds.0; [INFO] [stdout] ... | [INFO] [stdout] 168 | | }); [INFO] [stdout] | |__________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 157 | let _ = crossbeam::scope(|spawner| { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:120:5 [INFO] [stdout] | [INFO] [stdout] 120 | / encoder.encode( [INFO] [stdout] 121 | | &pixels, [INFO] [stdout] 122 | | bounds.0 as u32, [INFO] [stdout] 123 | | bounds.1 as u32, [INFO] [stdout] 124 | | ColorType::Gray(8), [INFO] [stdout] 125 | | ); [INFO] [stdout] | |_____^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 120 | let _ = encoder.encode( [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:157:9 [INFO] [stdout] | [INFO] [stdout] 157 | / crossbeam::scope(|spawner| { [INFO] [stdout] 158 | | for (i, band) in bands.into_iter().enumerate() { [INFO] [stdout] 159 | | let top = rows_per_band * i; [INFO] [stdout] 160 | | let height = band.len() / bounds.0; [INFO] [stdout] ... | [INFO] [stdout] 168 | | }); [INFO] [stdout] | |__________^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 157 | let _ = crossbeam::scope(|spawner| { [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.53s [INFO] running `Command { std: "docker" "inspect" "806c10971f175b0b23c6a6d05195ecc25a83a4c79535fe65c96214164286c9a1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "806c10971f175b0b23c6a6d05195ecc25a83a4c79535fe65c96214164286c9a1", kill_on_drop: false }` [INFO] [stdout] 806c10971f175b0b23c6a6d05195ecc25a83a4c79535fe65c96214164286c9a1