[INFO] updating cached repository azat-ismagilov/proxyismagilov
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/azat-ismagilov/proxyismagilov
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/azat-ismagilov/proxyismagilov" "work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/azat-ismagilov/proxyismagilov"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/azat-ismagilov/proxyismagilov'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/azat-ismagilov/proxyismagilov" "work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/azat-ismagilov/proxyismagilov"`
[INFO] [stderr] Cloning into 'work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/azat-ismagilov/proxyismagilov'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] af192e75ac5d2c74104b39861e3ce53bb559a46a
[INFO] sha for GitHub repo azat-ismagilov/proxyismagilov: af192e75ac5d2c74104b39861e3ce53bb559a46a
[INFO] validating manifest of azat-ismagilov/proxyismagilov 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 azat-ismagilov/proxyismagilov 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 azat-ismagilov/proxyismagilov
[INFO] finished frobbing azat-ismagilov/proxyismagilov
[INFO] frobbed toml for azat-ismagilov/proxyismagilov written to work/ex/pr-60039-1/sources/master#e305df1846a6d985315917ae0c81b74af8b4e641/gh/azat-ismagilov/proxyismagilov/Cargo.toml
[INFO] started frobbing azat-ismagilov/proxyismagilov
[INFO] finished frobbing azat-ismagilov/proxyismagilov
[INFO] frobbed toml for azat-ismagilov/proxyismagilov written to work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/azat-ismagilov/proxyismagilov/Cargo.toml
[INFO] crate azat-ismagilov/proxyismagilov 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 azat-ismagilov/proxyismagilov against try#99a7498759a22b5684caf798a98b7e90ad9d2443 for pr-60039-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-60039-1/worker-1/try#99a7498759a22b5684caf798a98b7e90ad9d2443:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-60039-1/sources/try#99a7498759a22b5684caf798a98b7e90ad9d2443/gh/azat-ismagilov/proxyismagilov:/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" "+99a7498759a22b5684caf798a98b7e90ad9d2443-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c8f3c0ec38ba95f6c0b1223b35e09fb27542130460dd3c0f5a8d90025e458dee
[INFO] running `"docker" "start" "-a" "c8f3c0ec38ba95f6c0b1223b35e09fb27542130460dd3c0f5a8d90025e458dee"`
[INFO] [stderr]     Checking rand v0.5.0
[INFO] [stderr]     Checking mtproxy v0.0.2 (/opt/crater/workdir)
[INFO] [stderr] error: variable does not need to be mutable
[INFO] [stderr]   --> src/proxy.rs:96:19
[INFO] [stderr]    |
[INFO] [stderr] 96 |           Ok(Some(mut dc_idx)) => {
[INFO] [stderr]    |                   ----^^^^^^
[INFO] [stderr]    |                   |
[INFO] [stderr]    |                   help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> src/main.rs:1:9
[INFO] [stderr]    |
[INFO] [stderr] 1  | #![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/proxy.rs:166:11
[INFO] [stderr]     |
[INFO] [stderr] 166 |       let mut pump = pump.borrow_mut();
[INFO] [stderr]     |           ----^^^^
[INFO] [stderr]     |           |
[INFO] [stderr]     |           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] error: variable does not need to be mutable
[INFO] [stderr]   --> src/proxy.rs:96:19
[INFO] [stderr]    |
[INFO] [stderr] 96 |           Ok(Some(mut dc_idx)) => {
[INFO] [stderr]    |                   ----^^^^^^
[INFO] [stderr]    |                   |
[INFO] [stderr]    |                   help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]   --> src/main.rs:1:9
[INFO] [stderr]    |
[INFO] [stderr] 1  | #![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/proxy.rs:166:11
[INFO] [stderr]     |
[INFO] [stderr] 166 |       let mut pump = pump.borrow_mut();
[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: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `mtproxy`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `mtproxy`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "c8f3c0ec38ba95f6c0b1223b35e09fb27542130460dd3c0f5a8d90025e458dee"`
[INFO] running `"docker" "rm" "-f" "c8f3c0ec38ba95f6c0b1223b35e09fb27542130460dd3c0f5a8d90025e458dee"`
[INFO] [stdout] c8f3c0ec38ba95f6c0b1223b35e09fb27542130460dd3c0f5a8d90025e458dee