[INFO] cloning repository https://github.com/simon-auch/projecteuler [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/simon-auch/projecteuler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimon-auch%2Fprojecteuler", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimon-auch%2Fprojecteuler'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0518e55423a7defe009e8bfaf07cdbd08d9f47f8 [INFO] testing simon-auch/projecteuler against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimon-auch%2Fprojecteuler" "/workspace/builds/worker-58/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-58/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/simon-auch/projecteuler on toolchain 62efba8a050c64249dab942951bb28f710208bc8 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/simon-auch/projecteuler [INFO] finished tweaking git repo https://github.com/simon-auch/projecteuler [INFO] tweaked toml for git repo https://github.com/simon-auch/projecteuler written to /workspace/builds/worker-58/source/Cargo.toml [INFO] crate git repo https://github.com/simon-auch/projecteuler already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d300b2ccd3892e889dbc1f32c776a63698ec13065687b0e7b3ef48bce78a8b73 [INFO] running `Command { std: "docker" "start" "-a" "d300b2ccd3892e889dbc1f32c776a63698ec13065687b0e7b3ef48bce78a8b73", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d300b2ccd3892e889dbc1f32c776a63698ec13065687b0e7b3ef48bce78a8b73", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d300b2ccd3892e889dbc1f32c776a63698ec13065687b0e7b3ef48bce78a8b73", kill_on_drop: false }` [INFO] [stdout] d300b2ccd3892e889dbc1f32c776a63698ec13065687b0e7b3ef48bce78a8b73 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-58/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c5f98cc0d7c471dbf5a268337ab71dbea0689c3d662c4ddfdd3efb76a108049e [INFO] running `Command { std: "docker" "start" "-a" "c5f98cc0d7c471dbf5a268337ab71dbea0689c3d662c4ddfdd3efb76a108049e", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling gcd v2.0.1 [INFO] [stderr] Compiling num-traits v0.2.12 [INFO] [stderr] Compiling num-integer v0.1.43 [INFO] [stderr] Compiling num-bigint v0.3.0 [INFO] [stderr] Compiling num-iter v0.1.41 [INFO] [stderr] Compiling num-rational v0.3.0 [INFO] [stderr] Compiling num-complex v0.3.0 [INFO] [stderr] Compiling num v0.3.0 [INFO] [stderr] Compiling projecteuler v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused borrow that must be used [INFO] [stdout] --> src/bin/problem_0017.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | / &[ [INFO] [stdout] 9 | | (1usize, 3usize), [INFO] [stdout] 10 | | (2, 3), [INFO] [stdout] 11 | | (3, 5), [INFO] [stdout] ... | [INFO] [stdout] 39 | | special_values.insert(*i, *j); [INFO] [stdout] 40 | | }); [INFO] [stdout] | |______^ the borrow produces a value [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 8 | let _ = &[ [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `projecteuler`; 1 warning emitted [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `rustc --crate-name problem_0017 --edition=2018 src/bin/problem_0017.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -C embed-bitcode=no -C debuginfo=2 -C metadata=4db756a6f9144d62 -C extra-filename=-4db756a6f9144d62 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern gcd=/opt/rustwide/target/debug/deps/libgcd-3c67460d3e2d8961.rlib --extern num=/opt/rustwide/target/debug/deps/libnum-27be55424058f0bf.rlib --extern projecteuler=/opt/rustwide/target/debug/deps/libprojecteuler-494596af1213a03a.rlib --cap-lints=forbid` (signal: 9, SIGKILL: kill) [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error[E0658]: use of unstable library feature 'bench_black_box' [INFO] [stdout] --> src/bin/problem_0071.rs:12:13 [INFO] [stdout] | [INFO] [stdout] 12 | core::hint::black_box(solve(1_000_000)); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: see issue #64102 for more information [INFO] [stdout] = help: add `#![feature(bench_black_box)]` to the crate attributes to enable [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `projecteuler::helper` [INFO] [stdout] --> src/bin/problem_0599.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use projecteuler::helper; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [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 E0658`. [INFO] [stdout] [INFO] [stderr] error: build failed [INFO] running `Command { std: "docker" "inspect" "c5f98cc0d7c471dbf5a268337ab71dbea0689c3d662c4ddfdd3efb76a108049e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c5f98cc0d7c471dbf5a268337ab71dbea0689c3d662c4ddfdd3efb76a108049e", kill_on_drop: false }` [INFO] [stdout] c5f98cc0d7c471dbf5a268337ab71dbea0689c3d662c4ddfdd3efb76a108049e