[INFO] updating cached repository SixExtreme/sword
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/SixExtreme/sword
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/SixExtreme/sword" "work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/SixExtreme/sword"`
[INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/SixExtreme/sword'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/SixExtreme/sword" "work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/SixExtreme/sword"`
[INFO] [stderr] Cloning into 'work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/SixExtreme/sword'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f21b8719464b4255c53654c08f828096d17c933d
[INFO] sha for GitHub repo SixExtreme/sword: f21b8719464b4255c53654c08f828096d17c933d
[INFO] validating manifest of SixExtreme/sword 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 SixExtreme/sword 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 SixExtreme/sword
[INFO] finished frobbing SixExtreme/sword
[INFO] frobbed toml for SixExtreme/sword written to work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/SixExtreme/sword/Cargo.toml
[INFO] started frobbing SixExtreme/sword
[INFO] finished frobbing SixExtreme/sword
[INFO] frobbed toml for SixExtreme/sword written to work/ex/pr-60944/sources/try#42445ded8fd34235a676755cb5d079658ed51f6a/gh/SixExtreme/sword/Cargo.toml
[INFO] crate SixExtreme/sword 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 SixExtreme/sword against master#589beb979c0f1a9736e02e578913db88398c3ba5 for pr-60944
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60944/worker-2/master#589beb979c0f1a9736e02e578913db88398c3ba5:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60944/sources/master#589beb979c0f1a9736e02e578913db88398c3ba5/gh/SixExtreme/sword:/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] 933f37d9b80a8ecd137c6ec5b85cec1668f19730af07a68a6f55c3df49015a04
[INFO] running `"docker" "start" "-a" "933f37d9b80a8ecd137c6ec5b85cec1668f19730af07a68a6f55c3df49015a04"`
[INFO] [stderr]     Checking sword v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/math/sqrtx.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | struct Solution;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `my_sqrt`
[INFO] [stderr]  --> src/math/sqrtx.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     pub fn my_sqrt(x: i32) -> i32 {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Solution`
[INFO] [stderr]  --> src/array/two_sum.rs:3:1
[INFO] [stderr]   |
[INFO] [stderr] 3 | struct Solution;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `two_sum`
[INFO] [stderr]  --> src/array/two_sum.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.57s
[INFO] running `"docker" "inspect" "933f37d9b80a8ecd137c6ec5b85cec1668f19730af07a68a6f55c3df49015a04"`
[INFO] running `"docker" "rm" "-f" "933f37d9b80a8ecd137c6ec5b85cec1668f19730af07a68a6f55c3df49015a04"`
[INFO] [stdout] 933f37d9b80a8ecd137c6ec5b85cec1668f19730af07a68a6f55c3df49015a04