[INFO] updating cached repository pinkisemils/rust_shenanigans
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/pinkisemils/rust_shenanigans
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/pinkisemils/rust_shenanigans" "work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/pinkisemils/rust_shenanigans"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/pinkisemils/rust_shenanigans'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/pinkisemils/rust_shenanigans" "work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/pinkisemils/rust_shenanigans"`
[INFO] [stderr] Cloning into 'work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/pinkisemils/rust_shenanigans'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 16ae5658ced9ccc30ba25c779d78e17d416ca61b
[INFO] sha for GitHub repo pinkisemils/rust_shenanigans: 16ae5658ced9ccc30ba25c779d78e17d416ca61b
[INFO] validating manifest of pinkisemils/rust_shenanigans on toolchain master#f66e4697ae286985ddefc53c3a047614568458bb
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of pinkisemils/rust_shenanigans on toolchain try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing pinkisemils/rust_shenanigans
[INFO] finished frobbing pinkisemils/rust_shenanigans
[INFO] frobbed toml for pinkisemils/rust_shenanigans written to work/ex/pr-58592/sources/master#f66e4697ae286985ddefc53c3a047614568458bb/gh/pinkisemils/rust_shenanigans/Cargo.toml
[INFO] started frobbing pinkisemils/rust_shenanigans
[INFO] finished frobbing pinkisemils/rust_shenanigans
[INFO] frobbed toml for pinkisemils/rust_shenanigans written to work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/pinkisemils/rust_shenanigans/Cargo.toml
[INFO] crate pinkisemils/rust_shenanigans has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f66e4697ae286985ddefc53c3a047614568458bb-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking pinkisemils/rust_shenanigans against try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a for pr-58592
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58592/worker-0/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58592/sources/try#c3b22200e6f5b70eb1f99ae6944d989ae17a458a/gh/pinkisemils/rust_shenanigans:/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" "+c3b22200e6f5b70eb1f99ae6944d989ae17a458a-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1ef648de061a90fa9ea267fbd83b894f0a25e93263d3c1aeb41183762458f6b7
[INFO] running `"docker" "start" "-a" "1ef648de061a90fa9ea267fbd83b894f0a25e93263d3c1aeb41183762458f6b7"`
[INFO] [stderr]     Checking bitflags v0.7.1
[INFO] [stderr]    Compiling deco v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Checking png v0.6.2
[INFO] [stderr]     Checking image v0.12.3
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:28:21
[INFO] [stderr]    |
[INFO] [stderr] 28 |                     tx.send(trim(sendable));
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/lib.rs:28:21
[INFO] [stderr]    |
[INFO] [stderr] 28 |                     tx.send(trim(sendable));
[INFO] [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dec_t`
[INFO] [stderr]   --> src/bin/main.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let dec_t = spawn(||{read_and_send(file, tx)});
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_dec_t`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `dec_t`
[INFO] [stderr]   --> src/bin/main.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |     let dec_t = spawn(||{read_and_send(file, tx)});
[INFO] [stderr]    |         ^^^^^ help: consider prefixing with an underscore: `_dec_t`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.70s
[INFO] running `"docker" "inspect" "1ef648de061a90fa9ea267fbd83b894f0a25e93263d3c1aeb41183762458f6b7"`
[INFO] running `"docker" "rm" "-f" "1ef648de061a90fa9ea267fbd83b894f0a25e93263d3c1aeb41183762458f6b7"`
[INFO] [stdout] 1ef648de061a90fa9ea267fbd83b894f0a25e93263d3c1aeb41183762458f6b7