[INFO] updating cached repository https://github.com/maurocordioli/rs-sudoku [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/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] f51339a2bb6dd294e4d98a8e5d15697af28ec9b7 [INFO] checking maurocordioli/rs-sudoku against master#bd0bacc694d7d8175804bb6f690cb846bfa4a9ee for pr-71665 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaurocordioli%2Frs-sudoku" "/workspace/builds/worker-5/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/maurocordioli/rs-sudoku on toolchain bd0bacc694d7d8175804bb6f690cb846bfa4a9ee [INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/maurocordioli/rs-sudoku [INFO] finished tweaking git repo https://github.com/maurocordioli/rs-sudoku [INFO] tweaked toml for git repo https://github.com/maurocordioli/rs-sudoku written to /workspace/builds/worker-5/source/Cargo.toml [INFO] crate git repo https://github.com/maurocordioli/rs-sudoku already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "+bd0bacc694d7d8175804bb6f690cb846bfa4a9ee" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] de537f102ca8a98e5c8737e30529033a75c700cede90957b43f0fa8bac60ed95 [INFO] running `"docker" "start" "-a" "de537f102ca8a98e5c8737e30529033a75c700cede90957b43f0fa8bac60ed95"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling arrayvec v0.4.10 [INFO] [stderr] Compiling serde v1.0.90 [INFO] [stderr] Checking cfg-if v0.1.7 [INFO] [stderr] Compiling proc-macro2 v0.4.29 [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Compiling syn v0.15.33 [INFO] [stderr] Checking rand_core v0.4.0 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Checking rssudoku v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Checking crossbeam-utils v0.2.2 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/lib.rs:305:2 [INFO] [stderr] | [INFO] [stderr] 269 | / loop { [INFO] [stderr] 270 | | [INFO] [stderr] 271 | | for (t,v) in touched.into_iter().enumerate() { [INFO] [stderr] 272 | | if !v { continue;} [INFO] [stderr] ... | [INFO] [stderr] 300 | | [INFO] [stderr] 301 | | } [INFO] [stderr] | |_____- any code following this expression is unreachable [INFO] [stderr] ... [INFO] [stderr] 305 | ass [INFO] [stderr] | ^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking csv-core v0.1.5 [INFO] [stderr] Checking crossbeam-epoch v0.3.1 [INFO] [stderr] Checking rand_xoshiro v0.1.0 [INFO] [stderr] Checking criterion-plot v0.3.1 [INFO] [stderr] Compiling quote v0.6.12 [INFO] [stderr] Checking crossbeam-deque v0.2.0 [INFO] [stderr] Checking rayon-core v1.4.1 [INFO] [stderr] Checking rayon v1.0.3 [INFO] [stderr] Compiling serde_derive v1.0.90 [INFO] [stderr] Checking serde_json v1.0.39 [INFO] [stderr] Checking csv v1.0.7 [INFO] [stderr] Checking tinytemplate v1.0.1 [INFO] [stderr] Checking criterion v0.2.11 [INFO] [stderr] warning: unreachable expression [INFO] [stderr] --> src/lib.rs:305:2 [INFO] [stderr] | [INFO] [stderr] 269 | / loop { [INFO] [stderr] 270 | | [INFO] [stderr] 271 | | for (t,v) in touched.into_iter().enumerate() { [INFO] [stderr] 272 | | if !v { continue;} [INFO] [stderr] ... | [INFO] [stderr] 300 | | [INFO] [stderr] 301 | | } [INFO] [stderr] | |_____- any code following this expression is unreachable [INFO] [stderr] ... [INFO] [stderr] 305 | ass [INFO] [stderr] | ^^^ unreachable expression [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unreachable_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 1 warning emitted [INFO] [stderr] [INFO] [stderr] warning: unused import: `criterion::black_box` [INFO] [stderr] --> src/my_benchmarks.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use criterion::black_box; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/my_benchmarks.rs:26:8 [INFO] [stderr] | [INFO] [stderr] 26 | b.read_from("800000000003600000070090200050007000000045700000100030001000068008500010090000400".as_bytes()); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] [INFO] [stderr] warning: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 51.27s [INFO] running `"docker" "inspect" "de537f102ca8a98e5c8737e30529033a75c700cede90957b43f0fa8bac60ed95"` [INFO] running `"docker" "rm" "-f" "de537f102ca8a98e5c8737e30529033a75c700cede90957b43f0fa8bac60ed95"` [INFO] [stdout] de537f102ca8a98e5c8737e30529033a75c700cede90957b43f0fa8bac60ed95