[INFO] updating cached repository wismer/caesar-cipher [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/wismer/caesar-cipher [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/wismer/caesar-cipher" "work/ex/beta-1.37-6/sources/1.36.0/gh/wismer/caesar-cipher"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/wismer/caesar-cipher'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/wismer/caesar-cipher" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/wismer/caesar-cipher"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/wismer/caesar-cipher'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] cda2f26c1e779c0c72a97c4388eab53d6fb84041 [INFO] sha for GitHub repo wismer/caesar-cipher: cda2f26c1e779c0c72a97c4388eab53d6fb84041 [INFO] validating manifest of wismer/caesar-cipher on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of wismer/caesar-cipher on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing wismer/caesar-cipher [INFO] finished frobbing wismer/caesar-cipher [INFO] frobbed toml for wismer/caesar-cipher written to work/ex/beta-1.37-6/sources/1.36.0/gh/wismer/caesar-cipher/Cargo.toml [INFO] started frobbing wismer/caesar-cipher [INFO] finished frobbing wismer/caesar-cipher [INFO] frobbed toml for wismer/caesar-cipher written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/wismer/caesar-cipher/Cargo.toml [INFO] crate wismer/caesar-cipher already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing wismer/caesar-cipher against 1.36.0 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/wismer/caesar-cipher:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"` [INFO] [stdout] 9ffb05472e548dbae18d9c8bf08ed3bb644a7b22da5d12b23270996d9acd7263 [INFO] running `"docker" "start" "-a" "9ffb05472e548dbae18d9c8bf08ed3bb644a7b22da5d12b23270996d9acd7263"` [INFO] [stderr] Compiling caesar-cipher v0.1.0 (/opt/crater/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 0.89s [INFO] running `"docker" "inspect" "9ffb05472e548dbae18d9c8bf08ed3bb644a7b22da5d12b23270996d9acd7263"` [INFO] running `"docker" "rm" "-f" "9ffb05472e548dbae18d9c8bf08ed3bb644a7b22da5d12b23270996d9acd7263"` [INFO] [stdout] 9ffb05472e548dbae18d9c8bf08ed3bb644a7b22da5d12b23270996d9acd7263 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/wismer/caesar-cipher:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen" "--no-run"` [INFO] [stdout] 34bbaedf9c5b2fb197aeb2f1aa99323439c1c1f22c32868bd0f9f27681900e3e [INFO] running `"docker" "start" "-a" "34bbaedf9c5b2fb197aeb2f1aa99323439c1c1f22c32868bd0f9f27681900e3e"` [INFO] [stderr] Compiling caesar-cipher v0.1.0 (/opt/crater/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 0.62s [INFO] running `"docker" "inspect" "34bbaedf9c5b2fb197aeb2f1aa99323439c1c1f22c32868bd0f9f27681900e3e"` [INFO] running `"docker" "rm" "-f" "34bbaedf9c5b2fb197aeb2f1aa99323439c1c1f22c32868bd0f9f27681900e3e"` [INFO] [stdout] 34bbaedf9c5b2fb197aeb2f1aa99323439c1c1f22c32868bd0f9f27681900e3e [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/wismer/caesar-cipher:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen"` [INFO] [stdout] a062b20ee90ce93a5b9f7632d1b9001226039846405c8b486019e1bf62410a17 [INFO] running `"docker" "start" "-a" "a062b20ee90ce93a5b9f7632d1b9001226039846405c8b486019e1bf62410a17"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stderr] Running /opt/crater/target/debug/deps/caesar_cipher-f1df8b834ba4c60b [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" "a062b20ee90ce93a5b9f7632d1b9001226039846405c8b486019e1bf62410a17"` [INFO] running `"docker" "rm" "-f" "a062b20ee90ce93a5b9f7632d1b9001226039846405c8b486019e1bf62410a17"` [INFO] [stdout] a062b20ee90ce93a5b9f7632d1b9001226039846405c8b486019e1bf62410a17