[INFO] cloning repository Xijezu/ServerMonitor
[INFO] running `"git" "clone" "--bare" "git://github.com/Xijezu/ServerMonitor.git" "work/cache/sources/gh/Xijezu/ServerMonitor"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/Xijezu/ServerMonitor'...
[INFO] running `"git" "clone" "work/cache/sources/gh/Xijezu/ServerMonitor" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/Xijezu/ServerMonitor"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/Xijezu/ServerMonitor'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Xijezu/ServerMonitor" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/Xijezu/ServerMonitor"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/Xijezu/ServerMonitor'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3b72783f5d8d63b3dcbb3c39084aa77e90da0f50
[INFO] sha for GitHub repo Xijezu/ServerMonitor: 3b72783f5d8d63b3dcbb3c39084aa77e90da0f50
[INFO] validating manifest of Xijezu/ServerMonitor on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Xijezu/ServerMonitor on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Xijezu/ServerMonitor
[INFO] finished frobbing Xijezu/ServerMonitor
[INFO] frobbed toml for Xijezu/ServerMonitor written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/Xijezu/ServerMonitor/Cargo.toml
[INFO] started frobbing Xijezu/ServerMonitor
[INFO] finished frobbing Xijezu/ServerMonitor
[INFO] frobbed toml for Xijezu/ServerMonitor written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/Xijezu/ServerMonitor/Cargo.toml
[INFO] crate Xijezu/ServerMonitor already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking Xijezu/ServerMonitor against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-6/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/Xijezu/ServerMonitor:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] c96e801896d8fb84e5a99cd6990f3231647da35ff80d6b8381fc4478a3c7f53e
[INFO] running `"docker" "start" "-a" "c96e801896d8fb84e5a99cd6990f3231647da35ff80d6b8381fc4478a3c7f53e"`
[INFO] [stderr]    Compiling syn v0.15.32
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking sha2 v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]     Checking serde v1.0.90
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking mysql_common v0.15.0
[INFO] [stderr]     Checking mysql v15.1.0
[INFO] [stderr]     Checking server_monitor v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/monitor.rs:109:17
[INFO] [stderr]     |
[INFO] [stderr] 109 |             for mut servers in self.servers.iter_mut() {
[INFO] [stderr]     |                 ----^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/monitor.rs:109:17
[INFO] [stderr]     |
[INFO] [stderr] 109 |             for mut servers in self.servers.iter_mut() {
[INFO] [stderr]     |                 ----^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.34s
[INFO] running `"docker" "inspect" "c96e801896d8fb84e5a99cd6990f3231647da35ff80d6b8381fc4478a3c7f53e"`
[INFO] running `"docker" "rm" "-f" "c96e801896d8fb84e5a99cd6990f3231647da35ff80d6b8381fc4478a3c7f53e"`
[INFO] [stdout] c96e801896d8fb84e5a99cd6990f3231647da35ff80d6b8381fc4478a3c7f53e