[INFO] updating cached repository ddworken/RStrings [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/ddworken/RStrings [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/ddworken/RStrings" "work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/ddworken/RStrings"` [INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/ddworken/RStrings'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/ddworken/RStrings" "work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/ddworken/RStrings"` [INFO] [stderr] Cloning into 'work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/ddworken/RStrings'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] a86b5349973dc6ef0b86088eabd08e8132c49573 [INFO] sha for GitHub repo ddworken/RStrings: a86b5349973dc6ef0b86088eabd08e8132c49573 [INFO] validating manifest of ddworken/RStrings on toolchain master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7 [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of ddworken/RStrings on toolchain try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing ddworken/RStrings [INFO] finished frobbing ddworken/RStrings [INFO] frobbed toml for ddworken/RStrings written to work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/ddworken/RStrings/Cargo.toml [INFO] started frobbing ddworken/RStrings [INFO] finished frobbing ddworken/RStrings [INFO] frobbed toml for ddworken/RStrings written to work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/ddworken/RStrings/Cargo.toml [INFO] crate ddworken/RStrings already has a lockfile, it will not be regenerated [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] error: the lock file /mnt/crater-raid/crater/work/ex/pr-59199/sources/master#bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7/gh/ddworken/RStrings/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] the lockfile is outdated, regenerating it [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+bc44841ad2a2ad5f6c5e67b9e35ed8e7e71d4dc7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking ddworken/RStrings against try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b for pr-59199 [INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-59199/worker-6/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-59199/sources/try#68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b/gh/ddworken/RStrings:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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=forbid" "-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" "+68fcf881bd1e4dbfc21e22f8c7a56b8a5d8e8f7b-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] fd79efa41cf76887fa4e0da54e6f84c4039ea628efa4a4eb64c42b1225f08f57 [INFO] running `"docker" "start" "-a" "fd79efa41cf76887fa4e0da54e6f84c4039ea628efa4a4eb64c42b1225f08f57"` [INFO] [stderr] Checking RStrings v0.0.2 (/opt/crater/workdir) [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/main.rs:66:16 [INFO] [stderr] | [INFO] [stderr] 66 | Ok(x) => bytes, //standard ok() err() [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `lenFile` [INFO] [stderr] --> src/main.rs:105:9 [INFO] [stderr] | [INFO] [stderr] 105 | let lenFile = file.len(); //used for out of range prevention [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_lenFile` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/main.rs:108:13 [INFO] [stderr] | [INFO] [stderr] 108 | let s = match str::from_utf8(&buf[0..i]) { //convert it to a UTF-8 [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `n` [INFO] [stderr] --> src/main.rs:109:16 [INFO] [stderr] | [INFO] [stderr] 109 | Ok(n) => {}, [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_n` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `err` [INFO] [stderr] --> src/main.rs:110:17 [INFO] [stderr] | [INFO] [stderr] 110 | Err(err) => { //keep track of whether or not we found a UTF-8 char [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_err` [INFO] [stderr] [INFO] [stderr] warning: value assigned to `utf8CheckerTuple` is never read [INFO] [stderr] --> src/main.rs:160:29 [INFO] [stderr] | [INFO] [stderr] 160 | let mut utf8CheckerTuple = (false, 0); [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_assignments)] on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `char` [INFO] [stderr] --> src/main.rs:198:20 [INFO] [stderr] | [INFO] [stderr] 198 | for (index,char) in file.iter().enumerate() { //index,char b/c we need both [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_char` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:256:13 [INFO] [stderr] | [INFO] [stderr] 256 | for i in 0..threads { //initialize the vectors that will each hold the bytes in 1 file [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `err` [INFO] [stderr] --> src/main.rs:294:25 [INFO] [stderr] | [INFO] [stderr] 294 | Err(err) => "", [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_err` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/main.rs:308:12 [INFO] [stderr] | [INFO] [stderr] 308 | Ok(x) => bytes, //standard ok() err() [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/main.rs:66:16 [INFO] [stderr] | [INFO] [stderr] 66 | Ok(x) => bytes, //standard ok() err() [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `lenFile` [INFO] [stderr] --> src/main.rs:105:9 [INFO] [stderr] | [INFO] [stderr] 105 | let lenFile = file.len(); //used for out of range prevention [INFO] [stderr] | ^^^^^^^ help: consider prefixing with an underscore: `_lenFile` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `s` [INFO] [stderr] --> src/main.rs:108:13 [INFO] [stderr] | [INFO] [stderr] 108 | let s = match str::from_utf8(&buf[0..i]) { //convert it to a UTF-8 [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_s` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `n` [INFO] [stderr] --> src/main.rs:109:16 [INFO] [stderr] | [INFO] [stderr] 109 | Ok(n) => {}, [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_n` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `err` [INFO] [stderr] --> src/main.rs:110:17 [INFO] [stderr] | [INFO] [stderr] 110 | Err(err) => { //keep track of whether or not we found a UTF-8 char [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_err` [INFO] [stderr] [INFO] [stderr] warning: value assigned to `utf8CheckerTuple` is never read [INFO] [stderr] --> src/main.rs:160:29 [INFO] [stderr] | [INFO] [stderr] 160 | let mut utf8CheckerTuple = (false, 0); [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_assignments)] on by default [INFO] [stderr] = help: maybe it is overwritten before being read? [INFO] [stderr] [INFO] [stderr] warning: unused variable: `char` [INFO] [stderr] --> src/main.rs:198:20 [INFO] [stderr] | [INFO] [stderr] 198 | for (index,char) in file.iter().enumerate() { //index,char b/c we need both [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_char` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `i` [INFO] [stderr] --> src/main.rs:256:13 [INFO] [stderr] | [INFO] [stderr] 256 | for i in 0..threads { //initialize the vectors that will each hold the bytes in 1 file [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_i` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `err` [INFO] [stderr] --> src/main.rs:294:25 [INFO] [stderr] | [INFO] [stderr] 294 | Err(err) => "", [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_err` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `x` [INFO] [stderr] --> src/main.rs:308:12 [INFO] [stderr] | [INFO] [stderr] 308 | Ok(x) => bytes, //standard ok() err() [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_x` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `err` [INFO] [stderr] --> src/main.rs:333:25 [INFO] [stderr] | [INFO] [stderr] 333 | Err(err) => "", [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_err` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `err` [INFO] [stderr] --> src/main.rs:346:25 [INFO] [stderr] | [INFO] [stderr] 346 | Err(err) => "", [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_err` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `err` [INFO] [stderr] --> src/main.rs:359:25 [INFO] [stderr] | [INFO] [stderr] 359 | Err(err) => "", [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_err` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `err` [INFO] [stderr] --> src/main.rs:372:25 [INFO] [stderr] | [INFO] [stderr] 372 | Err(err) => "", [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_err` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `err` [INFO] [stderr] --> src/main.rs:385:25 [INFO] [stderr] | [INFO] [stderr] 385 | Err(err) => "", [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_err` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `err` [INFO] [stderr] --> src/main.rs:398:25 [INFO] [stderr] | [INFO] [stderr] 398 | Err(err) => "", [INFO] [stderr] | ^^^ help: consider prefixing with an underscore: `_err` [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.73s [INFO] running `"docker" "inspect" "fd79efa41cf76887fa4e0da54e6f84c4039ea628efa4a4eb64c42b1225f08f57"` [INFO] running `"docker" "rm" "-f" "fd79efa41cf76887fa4e0da54e6f84c4039ea628efa4a4eb64c42b1225f08f57"` [INFO] [stdout] fd79efa41cf76887fa4e0da54e6f84c4039ea628efa4a4eb64c42b1225f08f57