[INFO] updating cached repository lsaether/iching
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/lsaether/iching
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/lsaether/iching" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/lsaether/iching"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/lsaether/iching'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/lsaether/iching" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/lsaether/iching"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/lsaether/iching'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e3523e21acddbffc00c356d676dd619a9384cf7b
[INFO] sha for GitHub repo lsaether/iching: e3523e21acddbffc00c356d676dd619a9384cf7b
[INFO] validating manifest of lsaether/iching on toolchain master#e305df1846a6d985315917ae0c81b74af8b4e641
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of lsaether/iching on toolchain try#99a7498759a22b5684caf798a98b7e90ad9d2443
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing lsaether/iching
[INFO] finished frobbing lsaether/iching
[INFO] frobbed toml for lsaether/iching written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/lsaether/iching/Cargo.toml
[INFO] started frobbing lsaether/iching
[INFO] finished frobbing lsaether/iching
[INFO] frobbed toml for lsaether/iching written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/lsaether/iching/Cargo.toml
[INFO] crate lsaether/iching already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking lsaether/iching against master#e305df1846a6d985315917ae0c81b74af8b4e641 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-2/master#e305df1846a6d985315917ae0c81b74af8b4e641:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/lsaether/iching:/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" "+e305df1846a6d985315917ae0c81b74af8b4e641-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 64e7b956ded2a86d5c7f91c9f7eb5162b3b42da752312046055c29d86d6581f1
[INFO] running `"docker" "start" "-a" "64e7b956ded2a86d5c7f91c9f7eb5162b3b42da752312046055c29d86d6581f1"`
[INFO] [stderr]     Checking iching v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::fs::File`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::fs::File;
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `found`
[INFO] [stderr]    --> src/main.rs:140:9
[INFO] [stderr]     |
[INFO] [stderr] 140 |     let found = contents.find(&search_string).unwrap();
[INFO] [stderr]     |         ^^^^^ help: consider prefixing with an underscore: `_found`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/main.rs:205:53
[INFO] [stderr]     |
[INFO] [stderr] 205 |             let mut res = env::vars().filter(|(key, value)| {
[INFO] [stderr]     |                                                     ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pager`
[INFO] [stderr]    --> src/main.rs:210:21
[INFO] [stderr]     |
[INFO] [stderr] 210 |             let (_, pager) = res.nth(0).unwrap();
[INFO] [stderr]     |                     ^^^^^ help: consider prefixing with an underscore: `_pager`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `found`
[INFO] [stderr]    --> src/main.rs:140:9
[INFO] [stderr]     |
[INFO] [stderr] 140 |     let found = contents.find(&search_string).unwrap();
[INFO] [stderr]     |         ^^^^^ help: consider prefixing with an underscore: `_found`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> src/main.rs:205:53
[INFO] [stderr]     |
[INFO] [stderr] 205 |             let mut res = env::vars().filter(|(key, value)| {
[INFO] [stderr]     |                                                     ^^^^^ help: consider prefixing with an underscore: `_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `pager`
[INFO] [stderr]    --> src/main.rs:210:21
[INFO] [stderr]     |
[INFO] [stderr] 210 |             let (_, pager) = res.nth(0).unwrap();
[INFO] [stderr]     |                     ^^^^^ help: consider prefixing with an underscore: `_pager`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.28s
[INFO] running `"docker" "inspect" "64e7b956ded2a86d5c7f91c9f7eb5162b3b42da752312046055c29d86d6581f1"`
[INFO] running `"docker" "rm" "-f" "64e7b956ded2a86d5c7f91c9f7eb5162b3b42da752312046055c29d86d6581f1"`
[INFO] [stdout] 64e7b956ded2a86d5c7f91c9f7eb5162b3b42da752312046055c29d86d6581f1