[INFO] crate orbclient 0.3.22 is already in cache
[INFO] extracting crate orbclient 0.3.22 into work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/reg/orbclient/0.3.22
[INFO] extracting crate orbclient 0.3.22 into work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/reg/orbclient/0.3.22
[INFO] validating manifest of orbclient-0.3.22 on toolchain master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of orbclient-0.3.22 on toolchain try#18481b65f318e0b4b20c0fc61340054701719d6c
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing orbclient-0.3.22
[INFO] finished frobbing orbclient-0.3.22
[INFO] frobbed toml for orbclient-0.3.22 written to work/ex/pr-62507/sources/master#78ca1bda3522b14bc0336bc01dd1d49fdba2cda7/reg/orbclient/0.3.22/Cargo.toml
[INFO] started frobbing orbclient-0.3.22
[INFO] finished frobbing orbclient-0.3.22
[INFO] frobbed toml for orbclient-0.3.22 written to work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/reg/orbclient/0.3.22/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+78ca1bda3522b14bc0336bc01dd1d49fdba2cda7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking orbclient-0.3.22 against try#18481b65f318e0b4b20c0fc61340054701719d6c for pr-62507
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62507/worker-3/try#18481b65f318e0b4b20c0fc61340054701719d6c:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62507/sources/try#18481b65f318e0b4b20c0fc61340054701719d6c/reg/orbclient/0.3.22:/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" "+18481b65f318e0b4b20c0fc61340054701719d6c-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 0c7b70beb59df0f141dda18d5fbb5677f2fb8f951e15bdffa2b9dfa63cd234c2
[INFO] running `"docker" "start" "-a" "0c7b70beb59df0f141dda18d5fbb5677f2fb8f951e15bdffa2b9dfa63cd234c2"`
[INFO] [stderr]     Checking sdl2 v0.31.0
[INFO] [stderr]     Checking orbclient v0.3.22 (/opt/crater/workdir)
[INFO] [stderr] error: variable does not need to be mutable
[INFO] [stderr]    --> src/renderer.rs:410:21
[INFO] [stderr]     |
[INFO] [stderr] 410 |                 let mut alpha: u8 = if color.a() < 255 - c.r() {
[INFO] [stderr]     |                     ----^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/lib.rs:5:9
[INFO] [stderr]     |
[INFO] [stderr] 5   | #![deny(warnings)]
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     = note: #[deny(unused_mut)] implied by #[deny(warnings)]
[INFO] [stderr] 
[INFO] [stderr] error: variable does not need to be mutable
[INFO] [stderr]    --> src/renderer.rs:518:17
[INFO] [stderr]     |
[INFO] [stderr] 518 |             let mut end = begin + w;
[INFO] [stderr]     |                 ----^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: variable does not need to be mutable
[INFO] [stderr]    --> src/renderer.rs:410:21
[INFO] [stderr]     |
[INFO] [stderr] 410 |                 let mut alpha: u8 = if color.a() < 255 - c.r() {
[INFO] [stderr]     |                     ----^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/lib.rs:5:9
[INFO] [stderr]     |
[INFO] [stderr] 5   | #![deny(warnings)]
[INFO] [stderr]     |         ^^^^^^^^
[INFO] [stderr]     = note: #[deny(unused_mut)] implied by #[deny(warnings)]
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `orbclient`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: variable does not need to be mutable
[INFO] [stderr]    --> src/renderer.rs:518:17
[INFO] [stderr]     |
[INFO] [stderr] 518 |             let mut end = begin + w;
[INFO] [stderr]     |                 ----^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `orbclient`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "0c7b70beb59df0f141dda18d5fbb5677f2fb8f951e15bdffa2b9dfa63cd234c2"`
[INFO] running `"docker" "rm" "-f" "0c7b70beb59df0f141dda18d5fbb5677f2fb8f951e15bdffa2b9dfa63cd234c2"`
[INFO] [stdout] 0c7b70beb59df0f141dda18d5fbb5677f2fb8f951e15bdffa2b9dfa63cd234c2