[INFO] updating cached repository bouncenow/advent-of-code-2018-rust [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/bouncenow/advent-of-code-2018-rust [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/bouncenow/advent-of-code-2018-rust" "work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/bouncenow/advent-of-code-2018-rust"` [INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/bouncenow/advent-of-code-2018-rust'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/bouncenow/advent-of-code-2018-rust" "work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/bouncenow/advent-of-code-2018-rust"` [INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/bouncenow/advent-of-code-2018-rust'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 2991f1d3b24cd95b7c252edd89c8d0519ec5312d [INFO] sha for GitHub repo bouncenow/advent-of-code-2018-rust: 2991f1d3b24cd95b7c252edd89c8d0519ec5312d [INFO] validating manifest of bouncenow/advent-of-code-2018-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 bouncenow/advent-of-code-2018-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 bouncenow/advent-of-code-2018-rust [INFO] finished frobbing bouncenow/advent-of-code-2018-rust [INFO] frobbed toml for bouncenow/advent-of-code-2018-rust written to work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/bouncenow/advent-of-code-2018-rust/Cargo.toml [INFO] started frobbing bouncenow/advent-of-code-2018-rust [INFO] finished frobbing bouncenow/advent-of-code-2018-rust [INFO] frobbed toml for bouncenow/advent-of-code-2018-rust written to work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/bouncenow/advent-of-code-2018-rust/Cargo.toml [INFO] crate bouncenow/advent-of-code-2018-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 bouncenow/advent-of-code-2018-rust against try#42445ded8fd34235a676755cb5d079658ed51f6a for pr-60944 [INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60944/worker-5/try#42445ded8fd34235a676755cb5d079658ed51f6a:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/bouncenow/advent-of-code-2018-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" "+42445ded8fd34235a676755cb5d079658ed51f6a-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 0de96951a55f16c5ee37f2d54304bf1be08e464ccb0ca258f504d13b99a5eb41 [INFO] running `"docker" "start" "-a" "0de96951a55f16c5ee37f2d54304bf1be08e464ccb0ca258f504d13b99a5eb41"` [INFO] [stderr] Checking raoc v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused return value of `core::str::::trim` that must be used [INFO] [stderr] --> src/ch5.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | polymers.trim(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this returns the trimmed string as a slice, without modifying the original [INFO] [stderr] [INFO] [stderr] warning: unused return value of `core::str::::trim` that must be used [INFO] [stderr] --> src/ch5.rs:10:5 [INFO] [stderr] | [INFO] [stderr] 10 | polymers.trim(); [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_must_use)] on by default [INFO] [stderr] = note: this returns the trimmed string as a slice, without modifying the original [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 1.81s [INFO] running `"docker" "inspect" "0de96951a55f16c5ee37f2d54304bf1be08e464ccb0ca258f504d13b99a5eb41"` [INFO] running `"docker" "rm" "-f" "0de96951a55f16c5ee37f2d54304bf1be08e464ccb0ca258f504d13b99a5eb41"` [INFO] [stdout] 0de96951a55f16c5ee37f2d54304bf1be08e464ccb0ca258f504d13b99a5eb41