[INFO] updating cached repository https://github.com/fumita/parallel-mandelbrot-algorithm [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/mnt/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] b86dad1cded73d7ab786af258c77508ae03732be [INFO] checking fumita/parallel-mandelbrot-algorithm against try#e689e5eaefe96e6dc3ed5bb629c521b7d207aff7 for pr-64398 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffumita%2Fparallel-mandelbrot-algorithm" "work/builds/worker-1/source"` [INFO] [stderr] Cloning into 'work/builds/worker-1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/fumita/parallel-mandelbrot-algorithm on toolchain e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt [INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/fumita/parallel-mandelbrot-algorithm [INFO] finished tweaking git repo https://github.com/fumita/parallel-mandelbrot-algorithm [INFO] tweaked toml for git repo https://github.com/fumita/parallel-mandelbrot-algorithm written to work/builds/worker-1/source/Cargo.toml [INFO] crate git repo https://github.com/fumita/parallel-mandelbrot-algorithm already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e689e5eaefe96e6dc3ed5bb629c521b7d207aff7-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] a0695b4007d8ed1d5040394ce57f6cbe96eba970b115a19e5898f69314c0f4d6 [INFO] running `"docker" "start" "-a" "a0695b4007d8ed1d5040394ce57f6cbe96eba970b115a19e5898f69314c0f4d6"` [INFO] [stderr] Checking miniz-sys v0.1.10 [INFO] [stderr] Checking num-bigint v0.1.41 [INFO] [stderr] Checking num-complex v0.1.41 [INFO] [stderr] Checking flate2 v0.2.20 [INFO] [stderr] Checking png v0.5.2 [INFO] [stderr] Checking num-rational v0.1.41 [INFO] [stderr] Checking num v0.1.41 [INFO] [stderr] Checking image v0.10.4 [INFO] [stderr] Checking mandelbrot v0.2.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/main.rs:127:18 [INFO] [stderr] | [INFO] [stderr] 127 | let output = try!(File::create(filename)); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/main.rs:130:5 [INFO] [stderr] | [INFO] [stderr] 130 | try!(encoder.encode(&pixels[..], [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/main.rs:127:18 [INFO] [stderr] | [INFO] [stderr] 127 | let output = try!(File::create(filename)); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> src/main.rs:130:5 [INFO] [stderr] | [INFO] [stderr] 130 | try!(encoder.encode(&pixels[..], [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 13.22s [INFO] running `"docker" "inspect" "a0695b4007d8ed1d5040394ce57f6cbe96eba970b115a19e5898f69314c0f4d6"` [INFO] running `"docker" "rm" "-f" "a0695b4007d8ed1d5040394ce57f6cbe96eba970b115a19e5898f69314c0f4d6"` [INFO] [stdout] a0695b4007d8ed1d5040394ce57f6cbe96eba970b115a19e5898f69314c0f4d6