[INFO] updating cached repository https://github.com/wismer/caesar-cipher [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/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] cda2f26c1e779c0c72a97c4388eab53d6fb84041 [INFO] testing wismer/caesar-cipher against beta-2019-09-28 for beta-1.39-1 [INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwismer%2Fcaesar-cipher" "work/builds/worker-6/source"` [INFO] [stderr] Cloning into 'work/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/wismer/caesar-cipher on toolchain beta-2019-09-28 [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/wismer/caesar-cipher [INFO] finished tweaking git repo https://github.com/wismer/caesar-cipher [INFO] tweaked toml for git repo https://github.com/wismer/caesar-cipher written to work/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/wismer/caesar-cipher already has a lockfile, it will not be regenerated [INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/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=warn" "-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" "+beta-2019-09-28" "build" "--frozen"` [INFO] [stdout] a729954bb1445528574ce8def5add460598c269c24becb24df1e568c6ce23a14 [INFO] running `"docker" "start" "-a" "a729954bb1445528574ce8def5add460598c269c24becb24df1e568c6ce23a14"` [INFO] [stderr] Compiling caesar-cipher v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `std::io` [INFO] [stderr] --> src/euler/euler.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::io; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `remainder` [INFO] [stderr] --> src/euler/euler.rs:40:24 [INFO] [stderr] | [INFO] [stderr] 40 | fn calculate_remainder(remainder: &mut i32) { [INFO] [stderr] | ^^^^^^^^^ help: consider prefixing with an underscore: `_remainder` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/euler/euler.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | let mut total_number = 0u64; [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: variable does not need to be mutable [INFO] [stderr] --> src/euler/euler.rs:19:13 [INFO] [stderr] | [INFO] [stderr] 19 | let mut remainder_val = numbers.iter().fold(0, |acc, &c| { [INFO] [stderr] | ----^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Neither` [INFO] [stderr] --> src/main.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | Neither [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `calculate_remainder` [INFO] [stderr] --> src/euler/euler.rs:40:1 [INFO] [stderr] | [INFO] [stderr] 40 | fn calculate_remainder(remainder: &mut i32) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `line_total` [INFO] [stderr] --> src/euler/euler.rs:44:1 [INFO] [stderr] | [INFO] [stderr] 44 | fn line_total(line: &str) -> u64 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/euler/euler.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | file.read_to_string(&mut contents); [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] Finished dev [unoptimized + debuginfo] target(s) in 1.10s [INFO] running `"docker" "inspect" "a729954bb1445528574ce8def5add460598c269c24becb24df1e568c6ce23a14"` [INFO] running `"docker" "rm" "-f" "a729954bb1445528574ce8def5add460598c269c24becb24df1e568c6ce23a14"` [INFO] [stdout] a729954bb1445528574ce8def5add460598c269c24becb24df1e568c6ce23a14 [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/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=warn" "-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" "+beta-2019-09-28" "test" "--frozen" "--no-run"` [INFO] [stdout] d845ae9d6db43661238caf3628a5eb498abe6cc920d67c66ae4c80a7ab50ee92 [INFO] running `"docker" "start" "-a" "d845ae9d6db43661238caf3628a5eb498abe6cc920d67c66ae4c80a7ab50ee92"` [INFO] [stderr] Compiling caesar-cipher v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: unused import: `std::io` [INFO] [stderr] --> src/euler/euler.rs:1:5 [INFO] [stderr] | [INFO] [stderr] 1 | use std::io; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `remainder` [INFO] [stderr] --> src/euler/euler.rs:40:24 [INFO] [stderr] | [INFO] [stderr] 40 | fn calculate_remainder(remainder: &mut i32) { [INFO] [stderr] | ^^^^^^^^^ help: consider prefixing with an underscore: `_remainder` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/euler/euler.rs:16:9 [INFO] [stderr] | [INFO] [stderr] 16 | let mut total_number = 0u64; [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: variable does not need to be mutable [INFO] [stderr] --> src/euler/euler.rs:19:13 [INFO] [stderr] | [INFO] [stderr] 19 | let mut remainder_val = numbers.iter().fold(0, |acc, &c| { [INFO] [stderr] | ----^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Neither` [INFO] [stderr] --> src/main.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | Neither [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `calculate_remainder` [INFO] [stderr] --> src/euler/euler.rs:40:1 [INFO] [stderr] | [INFO] [stderr] 40 | fn calculate_remainder(remainder: &mut i32) { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: function is never used: `line_total` [INFO] [stderr] --> src/euler/euler.rs:44:1 [INFO] [stderr] | [INFO] [stderr] 44 | fn line_total(line: &str) -> u64 { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/euler/euler.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | file.read_to_string(&mut contents); [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] Finished dev [unoptimized + debuginfo] target(s) in 0.65s [INFO] running `"docker" "inspect" "d845ae9d6db43661238caf3628a5eb498abe6cc920d67c66ae4c80a7ab50ee92"` [INFO] running `"docker" "rm" "-f" "d845ae9d6db43661238caf3628a5eb498abe6cc920d67c66ae4c80a7ab50ee92"` [INFO] [stdout] d845ae9d6db43661238caf3628a5eb498abe6cc920d67c66ae4c80a7ab50ee92 [INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/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=warn" "-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" "+beta-2019-09-28" "test" "--frozen"` [INFO] [stdout] 4370adfc393e42e20a478850c63d4bde6c1f3aeb3515b01b4b3978446db6889b [INFO] running `"docker" "start" "-a" "4370adfc393e42e20a478850c63d4bde6c1f3aeb3515b01b4b3978446db6889b"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.00s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/caesar_cipher-8dca25e6d11c3aef [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 [INFO] [stdout] [INFO] running `"docker" "inspect" "4370adfc393e42e20a478850c63d4bde6c1f3aeb3515b01b4b3978446db6889b"` [INFO] running `"docker" "rm" "-f" "4370adfc393e42e20a478850c63d4bde6c1f3aeb3515b01b4b3978446db6889b"` [INFO] [stdout] 4370adfc393e42e20a478850c63d4bde6c1f3aeb3515b01b4b3978446db6889b