[INFO] updating cached repository Salehbigdeli/rust-with-lists
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Salehbigdeli/rust-with-lists
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Salehbigdeli/rust-with-lists" "work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/Salehbigdeli/rust-with-lists"`
[INFO] [stderr] Cloning into 'work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/Salehbigdeli/rust-with-lists'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Salehbigdeli/rust-with-lists" "work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/Salehbigdeli/rust-with-lists"`
[INFO] [stderr] Cloning into 'work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/Salehbigdeli/rust-with-lists'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 98e59d2147f3fd6bf637dfa678104653869db4dd
[INFO] sha for GitHub repo Salehbigdeli/rust-with-lists: 98e59d2147f3fd6bf637dfa678104653869db4dd
[INFO] validating manifest of Salehbigdeli/rust-with-lists on toolchain master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Salehbigdeli/rust-with-lists on toolchain try#29640c57b5f92febba0e40c50cb863c9a7ede51d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Salehbigdeli/rust-with-lists
[INFO] finished frobbing Salehbigdeli/rust-with-lists
[INFO] frobbed toml for Salehbigdeli/rust-with-lists written to work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/Salehbigdeli/rust-with-lists/Cargo.toml
[INFO] started frobbing Salehbigdeli/rust-with-lists
[INFO] finished frobbing Salehbigdeli/rust-with-lists
[INFO] frobbed toml for Salehbigdeli/rust-with-lists written to work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/Salehbigdeli/rust-with-lists/Cargo.toml
[INFO] crate Salehbigdeli/rust-with-lists has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Salehbigdeli/rust-with-lists against try#29640c57b5f92febba0e40c50cb863c9a7ede51d for pr-57745
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57745/worker-2/try#29640c57b5f92febba0e40c50cb863c9a7ede51d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/Salehbigdeli/rust-with-lists:/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=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" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3db43f762239249a0b3a04a6db356b0b8e40c75896a9727c3a013e6a239b0d98
[INFO] running `"docker" "start" "-a" "3db43f762239249a0b3a04a6db356b0b8e40c75896a9727c3a013e6a239b0d98"`
[INFO] [stderr]     Checking list v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/second.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::mem`
[INFO] [stderr]  --> src/second.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::mem;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `list::first::List`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use list::first::List;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `list::first::List`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use list::first::List;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `"docker" "inspect" "3db43f762239249a0b3a04a6db356b0b8e40c75896a9727c3a013e6a239b0d98"`
[INFO] running `"docker" "rm" "-f" "3db43f762239249a0b3a04a6db356b0b8e40c75896a9727c3a013e6a239b0d98"`
[INFO] [stdout] 3db43f762239249a0b3a04a6db356b0b8e40c75896a9727c3a013e6a239b0d98