[INFO] updating cached repository christiansakai/linked_list_rust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/christiansakai/linked_list_rust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/christiansakai/linked_list_rust" "work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/christiansakai/linked_list_rust"` [INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/christiansakai/linked_list_rust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/christiansakai/linked_list_rust" "work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/christiansakai/linked_list_rust"` [INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/christiansakai/linked_list_rust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] b59f6d038c7a3a9c7cfb4a83a0103de5a7b175ce [INFO] sha for GitHub repo christiansakai/linked_list_rust: b59f6d038c7a3a9c7cfb4a83a0103de5a7b175ce [INFO] validating manifest of christiansakai/linked_list_rust on toolchain master#589beb979c0f1a9736e02e578913db88398c3ba5 [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of christiansakai/linked_list_rust on toolchain try#42445ded8fd34235a676755cb5d079658ed51f6a [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing christiansakai/linked_list_rust [INFO] finished frobbing christiansakai/linked_list_rust [INFO] frobbed toml for christiansakai/linked_list_rust written to work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/christiansakai/linked_list_rust/Cargo.toml [INFO] started frobbing christiansakai/linked_list_rust [INFO] finished frobbing christiansakai/linked_list_rust [INFO] frobbed toml for christiansakai/linked_list_rust written to work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/christiansakai/linked_list_rust/Cargo.toml [INFO] crate christiansakai/linked_list_rust already has a lockfile, it will not be regenerated [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking christiansakai/linked_list_rust against master#589beb979c0f1a9736e02e578913db88398c3ba5 for pr-60944 [INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60944/worker-6/master#589beb979c0f1a9736e02e578913db88398c3ba5:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/christiansakai/linked_list_rust:/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" "+589beb979c0f1a9736e02e578913db88398c3ba5-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] ff10486c1414a95f15a22466964838afb2ccdcaf45dedf4d436b8ff675c1ce5d [INFO] running `"docker" "start" "-a" "ff10486c1414a95f15a22466964838afb2ccdcaf45dedf4d436b8ff675c1ce5d"` [INFO] [stderr] Checking linked_list_rust v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `super::*` [INFO] [stderr] --> src/first.rs:75:9 [INFO] [stderr] | [INFO] [stderr] 75 | use super::*; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `elem` [INFO] [stderr] --> src/fourth.rs:51:33 [INFO] [stderr] | [INFO] [stderr] 51 | pub fn pop_front(&mut self, elem: T) -> Option { [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_elem` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `elem` [INFO] [stderr] --> src/fourth.rs:51:33 [INFO] [stderr] | [INFO] [stderr] 51 | pub fn pop_front(&mut self, elem: T) -> Option { [INFO] [stderr] | ^^^^ help: consider prefixing with an underscore: `_elem` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.62s [INFO] running `"docker" "inspect" "ff10486c1414a95f15a22466964838afb2ccdcaf45dedf4d436b8ff675c1ce5d"` [INFO] running `"docker" "rm" "-f" "ff10486c1414a95f15a22466964838afb2ccdcaf45dedf4d436b8ff675c1ce5d"` [INFO] [stdout] ff10486c1414a95f15a22466964838afb2ccdcaf45dedf4d436b8ff675c1ce5d