[INFO] cloning repository https://github.com/snek100/primefinder [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/snek100/primefinder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnek100%2Fprimefinder", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnek100%2Fprimefinder'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 27a4b0c4677a223b6a42b5bbd74a58cdae820076 [INFO] testing snek100/primefinder against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_getrandom_patch_0 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsnek100%2Fprimefinder" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/snek100/primefinder [INFO] finished tweaking git repo https://github.com/snek100/primefinder [INFO] tweaked toml for git repo https://github.com/snek100/primefinder written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/snek100/primefinder on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/snek100/primefinder 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 2 packages to latest compatible versions [INFO] [stderr] Adding cache-padded v1.3.0 [INFO] [stderr] Adding ringbuf v0.2.8 (available: v0.4.8) [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded ringbuf v0.2.8 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0d3b79a22a03c2a9d0e6899c7349e543a58dc2cafc900f7fa6ec1c8006a5ea4e [INFO] running `Command { std: "docker" "start" "-a" "0d3b79a22a03c2a9d0e6899c7349e543a58dc2cafc900f7fa6ec1c8006a5ea4e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0d3b79a22a03c2a9d0e6899c7349e543a58dc2cafc900f7fa6ec1c8006a5ea4e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0d3b79a22a03c2a9d0e6899c7349e543a58dc2cafc900f7fa6ec1c8006a5ea4e", kill_on_drop: false }` [INFO] [stdout] 0d3b79a22a03c2a9d0e6899c7349e543a58dc2cafc900f7fa6ec1c8006a5ea4e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 299daf8bdc23b2fbf0dfab182c333d81280b2dd9780364da2772affb6a762935 [INFO] running `Command { std: "docker" "start" "-a" "299daf8bdc23b2fbf0dfab182c333d81280b2dd9780364da2772affb6a762935", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.121 [INFO] [stderr] Compiling once_cell v1.10.0 [INFO] [stderr] Compiling regex-syntax v0.6.25 [INFO] [stderr] Compiling number_prefix v0.4.0 [INFO] [stderr] Compiling cache-padded v1.3.0 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stderr] Compiling ringbuf v0.2.8 [INFO] [stderr] Compiling terminal_size v0.1.17 [INFO] [stderr] Compiling num_cpus v1.13.1 [INFO] [stderr] Compiling console v0.15.0 [INFO] [stderr] Compiling regex v1.5.5 [INFO] [stderr] Compiling indicatif v0.16.2 [INFO] [stderr] Compiling prime_finder v3.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `prime` is never read [INFO] [stdout] --> src/lib.rs:167:29 [INFO] [stdout] | [INFO] [stdout] 167 | let mut prime:bool = true; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `checking` is never read [INFO] [stdout] --> src/lib.rs:169:29 [INFO] [stdout] | [INFO] [stdout] 169 | let mut checking = 2; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:61:9 [INFO] [stdout] | [INFO] [stdout] 61 | let mut primes_list_new = collect_primes(&primes_list); [INFO] [stdout] | ----^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:55:5 [INFO] [stdout] | [INFO] [stdout] 55 | file.read_to_string(&mut primes_list_string); [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] 55 | let _ = file.read_to_string(&mut primes_list_string); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.80s [INFO] running `Command { std: "docker" "inspect" "299daf8bdc23b2fbf0dfab182c333d81280b2dd9780364da2772affb6a762935", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "299daf8bdc23b2fbf0dfab182c333d81280b2dd9780364da2772affb6a762935", kill_on_drop: false }` [INFO] [stdout] 299daf8bdc23b2fbf0dfab182c333d81280b2dd9780364da2772affb6a762935 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 5746533ff05d4dbb3e1b1367b187f50040ecd49f805d0db3b022d46f7274f927 [INFO] running `Command { std: "docker" "start" "-a" "5746533ff05d4dbb3e1b1367b187f50040ecd49f805d0db3b022d46f7274f927", kill_on_drop: false }` [INFO] [stdout] warning: value assigned to `prime` is never read [INFO] [stdout] --> src/lib.rs:167:29 [INFO] [stdout] | [INFO] [stdout] 167 | let mut prime:bool = true; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `checking` is never read [INFO] [stdout] --> src/lib.rs:169:29 [INFO] [stdout] | [INFO] [stdout] 169 | let mut checking = 2; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling prime_finder v3.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:61:9 [INFO] [stdout] | [INFO] [stdout] 61 | let mut primes_list_new = collect_primes(&primes_list); [INFO] [stdout] | ----^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around index expression [INFO] [stdout] --> src/lib.rs:228:39 [INFO] [stdout] | [INFO] [stdout] 228 | assert_eq!(smalls_prime_chart[(checking - 1)], primeiness); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 228 - assert_eq!(smalls_prime_chart[(checking - 1)], primeiness); [INFO] [stdout] 228 + assert_eq!(smalls_prime_chart[checking - 1], primeiness); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:55:5 [INFO] [stdout] | [INFO] [stdout] 55 | file.read_to_string(&mut primes_list_string); [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] 55 | let _ = file.read_to_string(&mut primes_list_string); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around index expression [INFO] [stdout] --> src/lib.rs:236:67 [INFO] [stdout] | [INFO] [stdout] 236 | let divisor = finds_if_number_is_prime((problems_list[(checking - 1)]).try_into().unwrap()); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 236 - let divisor = finds_if_number_is_prime((problems_list[(checking - 1)]).try_into().unwrap()); [INFO] [stdout] 236 + let divisor = finds_if_number_is_prime((problems_list[checking - 1]).try_into().unwrap()); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary parentheses around index expression [INFO] [stdout] --> src/lib.rs:245:45 [INFO] [stdout] | [INFO] [stdout] 245 | assert_eq!(problems_prime_chart[(checking - 1)], primeiness); [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 245 - assert_eq!(problems_prime_chart[(checking - 1)], primeiness); [INFO] [stdout] 245 + assert_eq!(problems_prime_chart[checking - 1], primeiness); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `prime` is never read [INFO] [stdout] --> src/lib.rs:167:29 [INFO] [stdout] | [INFO] [stdout] 167 | let mut prime:bool = true; [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `checking` is never read [INFO] [stdout] --> src/lib.rs:169:29 [INFO] [stdout] | [INFO] [stdout] 169 | let mut checking = 2; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `primeiness` is never read [INFO] [stdout] --> src/lib.rs:220:17 [INFO] [stdout] | [INFO] [stdout] 220 | let mut primeiness = false; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `primeiness` is never read [INFO] [stdout] --> src/lib.rs:237:21 [INFO] [stdout] | [INFO] [stdout] 237 | let mut primeiness = false; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.70s [INFO] running `Command { std: "docker" "inspect" "5746533ff05d4dbb3e1b1367b187f50040ecd49f805d0db3b022d46f7274f927", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5746533ff05d4dbb3e1b1367b187f50040ecd49f805d0db3b022d46f7274f927", kill_on_drop: false }` [INFO] [stdout] 5746533ff05d4dbb3e1b1367b187f50040ecd49f805d0db3b022d46f7274f927 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }` [INFO] [stdout] 71d60db8d51734d5da546647a54d6c971caf58523fb8877ea13834cd6f6fb658 [INFO] running `Command { std: "docker" "start" "-a" "71d60db8d51734d5da546647a54d6c971caf58523fb8877ea13834cd6f6fb658", kill_on_drop: false }` [INFO] [stderr] warning: value assigned to `prime` is never read [INFO] [stderr] --> src/lib.rs:167:29 [INFO] [stderr] | [INFO] [stderr] 167 | let mut prime:bool = true; [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] = note: `#[warn(unused_assignments)]` on by default [INFO] [stderr] [INFO] [stderr] warning: value assigned to `checking` is never read [INFO] [stderr] --> src/lib.rs:169:29 [INFO] [stderr] | [INFO] [stderr] 169 | let mut checking = 2; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around index expression [INFO] [stderr] --> src/lib.rs:228:39 [INFO] [stderr] | [INFO] [stderr] 228 | assert_eq!(smalls_prime_chart[(checking - 1)], primeiness); [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_parens)]` on by default [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 228 - assert_eq!(smalls_prime_chart[(checking - 1)], primeiness); [INFO] [stderr] 228 + assert_eq!(smalls_prime_chart[checking - 1], primeiness); [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around index expression [INFO] [stderr] --> src/lib.rs:236:67 [INFO] [stderr] | [INFO] [stderr] 236 | let divisor = finds_if_number_is_prime((problems_list[(checking - 1)]).try_into().unwrap()); [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 236 - let divisor = finds_if_number_is_prime((problems_list[(checking - 1)]).try_into().unwrap()); [INFO] [stderr] 236 + let divisor = finds_if_number_is_prime((problems_list[checking - 1]).try_into().unwrap()); [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: unnecessary parentheses around index expression [INFO] [stderr] --> src/lib.rs:245:45 [INFO] [stderr] | [INFO] [stderr] 245 | assert_eq!(problems_prime_chart[(checking - 1)], primeiness); [INFO] [stderr] | ^ ^ [INFO] [stderr] | [INFO] [stderr] help: remove these parentheses [INFO] [stderr] | [INFO] [stderr] 245 - assert_eq!(problems_prime_chart[(checking - 1)], primeiness); [INFO] [stderr] 245 + assert_eq!(problems_prime_chart[checking - 1], primeiness); [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: value assigned to `primeiness` is never read [INFO] [stderr] --> src/lib.rs:220:17 [INFO] [stderr] | [INFO] [stderr] 220 | let mut primeiness = false; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: value assigned to `primeiness` is never read [INFO] [stderr] --> src/lib.rs:237:21 [INFO] [stderr] | [INFO] [stderr] 237 | let mut primeiness = false; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: `prime_finder` (lib) generated 2 warnings [INFO] [stderr] warning: `prime_finder` (lib test) generated 7 warnings (2 duplicates) (run `cargo fix --lib -p prime_finder --tests` to apply 3 suggestions) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:61:9 [INFO] [stderr] | [INFO] [stderr] 61 | let mut primes_list_new = collect_primes(&primes_list); [INFO] [stderr] | ----^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_mut)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `Result` that must be used [INFO] [stderr] --> src/main.rs:55:5 [INFO] [stderr] | [INFO] [stderr] 55 | file.read_to_string(&mut primes_list_string); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stderr] = note: `#[warn(unused_must_use)]` on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 55 | let _ = file.read_to_string(&mut primes_list_string); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: `prime_finder` (bin "prime_finder" test) generated 2 warnings (run `cargo fix --bin "prime_finder" --tests` to apply 1 suggestion) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/prime_finder-46815661db5873dc) [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test tests::test_problems ... ok [INFO] [stdout] test tests::test_smalls ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 3.17s [INFO] [stdout] [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/prime_finder-551bfe14b943e0b5) [INFO] [stdout] [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "71d60db8d51734d5da546647a54d6c971caf58523fb8877ea13834cd6f6fb658", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "71d60db8d51734d5da546647a54d6c971caf58523fb8877ea13834cd6f6fb658", kill_on_drop: false }` [INFO] [stdout] 71d60db8d51734d5da546647a54d6c971caf58523fb8877ea13834cd6f6fb658