[INFO] updating cached repository VitalyAnkh/mock_object
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/VitalyAnkh/mock_object
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/VitalyAnkh/mock_object" "work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/VitalyAnkh/mock_object"`
[INFO] [stderr] Cloning into 'work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/VitalyAnkh/mock_object'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/VitalyAnkh/mock_object" "work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/VitalyAnkh/mock_object"`
[INFO] [stderr] Cloning into 'work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/VitalyAnkh/mock_object'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c997e17de1ef46468c629a5ccae434d00e04595b
[INFO] sha for GitHub repo VitalyAnkh/mock_object: c997e17de1ef46468c629a5ccae434d00e04595b
[INFO] validating manifest of VitalyAnkh/mock_object on toolchain master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of VitalyAnkh/mock_object on toolchain try#bad365140e1e8233b42b21af70a407f14ce5fec5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing VitalyAnkh/mock_object
[INFO] finished frobbing VitalyAnkh/mock_object
[INFO] frobbed toml for VitalyAnkh/mock_object written to work/ex/pr-56896/sources/master#adbfec229ce07ff4b2a7bf2d6dec2d13cb224980/gh/VitalyAnkh/mock_object/Cargo.toml
[INFO] started frobbing VitalyAnkh/mock_object
[INFO] finished frobbing VitalyAnkh/mock_object
[INFO] frobbed toml for VitalyAnkh/mock_object written to work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/VitalyAnkh/mock_object/Cargo.toml
[INFO] crate VitalyAnkh/mock_object has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+adbfec229ce07ff4b2a7bf2d6dec2d13cb224980-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking VitalyAnkh/mock_object against try#bad365140e1e8233b42b21af70a407f14ce5fec5 for pr-56896
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56896/worker-2/try#bad365140e1e8233b42b21af70a407f14ce5fec5:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56896/sources/try#bad365140e1e8233b42b21af70a407f14ce5fec5/gh/VitalyAnkh/mock_object:/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" "+bad365140e1e8233b42b21af70a407f14ce5fec5-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] d78725a77932a227fd0d9b66ec0be00891517dd8216710dc08d80f2b2d474195
[INFO] running `"docker" "start" "-a" "d78725a77932a227fd0d9b66ec0be00891517dd8216710dc08d80f2b2d474195"`
[INFO] [stderr]     Checking mock_object v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::sync::mpsc`
[INFO] [stderr]  --> src/message_passing.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::sync::mpsc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::mpsc`
[INFO] [stderr]  --> src/message_passing.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::sync::mpsc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rx`
[INFO] [stderr]   --> src/main.rs:27:14
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let (tx, rx) = mpsc::channel();
[INFO] [stderr]    |              ^^ help: consider using `_rx` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rx`
[INFO] [stderr]   --> src/main.rs:27:14
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let (tx, rx) = mpsc::channel();
[INFO] [stderr]    |              ^^ help: consider using `_rx` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `"docker" "inspect" "d78725a77932a227fd0d9b66ec0be00891517dd8216710dc08d80f2b2d474195"`
[INFO] running `"docker" "rm" "-f" "d78725a77932a227fd0d9b66ec0be00891517dd8216710dc08d80f2b2d474195"`
[INFO] [stdout] d78725a77932a227fd0d9b66ec0be00891517dd8216710dc08d80f2b2d474195