[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-1.38-1/sources/1.37.0/gh/Xijezu/ServerMonitor"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/Xijezu/ServerMonitor'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Xijezu/ServerMonitor" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/Xijezu/ServerMonitor"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/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 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Xijezu/ServerMonitor on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "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-1.38-1/sources/1.37.0/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-1.38-1/sources/beta-2019-08-13/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" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing Xijezu/ServerMonitor against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] 737ae32a9bd59533cdfeeef9884fd168292a68c42ae07f934c14fa9ba02a77c4
[INFO] running `"docker" "start" "-a" "737ae32a9bd59533cdfeeef9884fd168292a68c42ae07f934c14fa9ba02a77c4"`
[INFO] [stderr]    Compiling syn v0.15.32
[INFO] [stderr]    Compiling num-bigint v0.2.2
[INFO] [stderr]    Compiling nix v0.12.0
[INFO] [stderr]    Compiling bit-vec v0.5.1
[INFO] [stderr]    Compiling uuid v0.7.4
[INFO] [stderr]    Compiling mysql v15.1.0
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling atoi v0.3.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling chrono v0.4.6
[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 17s
[INFO] running `"docker" "inspect" "737ae32a9bd59533cdfeeef9884fd168292a68c42ae07f934c14fa9ba02a77c4"`
[INFO] running `"docker" "rm" "-f" "737ae32a9bd59533cdfeeef9884fd168292a68c42ae07f934c14fa9ba02a77c4"`
[INFO] [stdout] 737ae32a9bd59533cdfeeef9884fd168292a68c42ae07f934c14fa9ba02a77c4
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] 189cccc82dbfdcf7530b04a7130a0c1cfdf7fcdcf9884084770704ab170e591a
[INFO] running `"docker" "start" "-a" "189cccc82dbfdcf7530b04a7130a0c1cfdf7fcdcf9884084770704ab170e591a"`
[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 1.52s
[INFO] running `"docker" "inspect" "189cccc82dbfdcf7530b04a7130a0c1cfdf7fcdcf9884084770704ab170e591a"`
[INFO] running `"docker" "rm" "-f" "189cccc82dbfdcf7530b04a7130a0c1cfdf7fcdcf9884084770704ab170e591a"`
[INFO] [stdout] 189cccc82dbfdcf7530b04a7130a0c1cfdf7fcdcf9884084770704ab170e591a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] c88051eb355953c8c3cbd9d9daf5d96f9ba767de64d1f48951a479e06d2b5069
[INFO] running `"docker" "start" "-a" "c88051eb355953c8c3cbd9d9daf5d96f9ba767de64d1f48951a479e06d2b5069"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/server_monitor-319d355c3d189504
[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" "c88051eb355953c8c3cbd9d9daf5d96f9ba767de64d1f48951a479e06d2b5069"`
[INFO] running `"docker" "rm" "-f" "c88051eb355953c8c3cbd9d9daf5d96f9ba767de64d1f48951a479e06d2b5069"`
[INFO] [stdout] c88051eb355953c8c3cbd9d9daf5d96f9ba767de64d1f48951a479e06d2b5069