[INFO] updating cached repository Xijezu/ServerMonitor
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/Xijezu/ServerMonitor
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/Xijezu/ServerMonitor" "work/ex/beta-1.37-6/sources/1.36.0/gh/Xijezu/ServerMonitor"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Xijezu/ServerMonitor'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Xijezu/ServerMonitor" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Xijezu/ServerMonitor"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/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 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Xijezu/ServerMonitor on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "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/beta-1.37-6/sources/1.36.0/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/beta-1.37-6/sources/beta-2019-07-23/gh/Xijezu/ServerMonitor/Cargo.toml
[INFO] crate Xijezu/ServerMonitor already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing Xijezu/ServerMonitor against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Xijezu/ServerMonitor:/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=warn" "-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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] f57e5564069e1ae008f4d18a81f7ed57ed9a0a7031633cec463d50aabe727f90
[INFO] running `"docker" "start" "-a" "f57e5564069e1ae008f4d18a81f7ed57ed9a0a7031633cec463d50aabe727f90"`
[INFO] [stderr]    Compiling syn v0.15.32
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling mysql v15.1.0
[INFO] [stderr]    Compiling bufstream v0.1.4
[INFO] [stderr]    Compiling rust-ini v0.13.0
[INFO] [stderr]    Compiling nix v0.12.0
[INFO] [stderr]    Compiling atoi v0.3.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling flate2 v1.0.7
[INFO] [stderr]    Compiling twox-hash v1.2.0
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling mysql_common v0.15.0
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 1m 08s
[INFO] running `"docker" "inspect" "f57e5564069e1ae008f4d18a81f7ed57ed9a0a7031633cec463d50aabe727f90"`
[INFO] running `"docker" "rm" "-f" "f57e5564069e1ae008f4d18a81f7ed57ed9a0a7031633cec463d50aabe727f90"`
[INFO] [stdout] f57e5564069e1ae008f4d18a81f7ed57ed9a0a7031633cec463d50aabe727f90
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Xijezu/ServerMonitor:/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=warn" "-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" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 9d1fe12aca58db25b8b551e6e2305785b5b312044e976fd9e127bd5249c4a9f9
[INFO] running `"docker" "start" "-a" "9d1fe12aca58db25b8b551e6e2305785b5b312044e976fd9e127bd5249c4a9f9"`
[INFO] [stderr]    Compiling 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]     Finished dev [unoptimized + debuginfo] target(s) in 1.75s
[INFO] running `"docker" "inspect" "9d1fe12aca58db25b8b551e6e2305785b5b312044e976fd9e127bd5249c4a9f9"`
[INFO] running `"docker" "rm" "-f" "9d1fe12aca58db25b8b551e6e2305785b5b312044e976fd9e127bd5249c4a9f9"`
[INFO] [stdout] 9d1fe12aca58db25b8b551e6e2305785b5b312044e976fd9e127bd5249c4a9f9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Xijezu/ServerMonitor:/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=warn" "-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" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] c0c20c7c17a4a8c1172ca183b3ace4955dac6bbbc22389c5024c7e7c5ce6ec25
[INFO] running `"docker" "start" "-a" "c0c20c7c17a4a8c1172ca183b3ace4955dac6bbbc22389c5024c7e7c5ce6ec25"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/server_monitor-809ae00cc73462ad
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "c0c20c7c17a4a8c1172ca183b3ace4955dac6bbbc22389c5024c7e7c5ce6ec25"`
[INFO] running `"docker" "rm" "-f" "c0c20c7c17a4a8c1172ca183b3ace4955dac6bbbc22389c5024c7e7c5ce6ec25"`
[INFO] [stdout] c0c20c7c17a4a8c1172ca183b3ace4955dac6bbbc22389c5024c7e7c5ce6ec25