[INFO] updating cached repository tailhook/nginx-config-mod
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tailhook/nginx-config-mod
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tailhook/nginx-config-mod" "work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/tailhook/nginx-config-mod"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/tailhook/nginx-config-mod'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tailhook/nginx-config-mod" "work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/tailhook/nginx-config-mod"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/tailhook/nginx-config-mod'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4be0df3b7390f79536ca05b3ac27c72897746007
[INFO] sha for GitHub repo tailhook/nginx-config-mod: 4be0df3b7390f79536ca05b3ac27c72897746007
[INFO] validating manifest of tailhook/nginx-config-mod on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tailhook/nginx-config-mod on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tailhook/nginx-config-mod
[INFO] finished frobbing tailhook/nginx-config-mod
[INFO] frobbed toml for tailhook/nginx-config-mod written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/tailhook/nginx-config-mod/Cargo.toml
[INFO] started frobbing tailhook/nginx-config-mod
[INFO] finished frobbing tailhook/nginx-config-mod
[INFO] frobbed toml for tailhook/nginx-config-mod written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/tailhook/nginx-config-mod/Cargo.toml
[INFO] crate tailhook/nginx-config-mod already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache lock
[INFO] checking tailhook/nginx-config-mod against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-2/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/tailhook/nginx-config-mod:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 019047648e74ff61780f88128a846643f877f42d2d06f63568b28300d5f4e811
[INFO] running `"docker" "start" "-a" "019047648e74ff61780f88128a846643f877f42d2d06f63568b28300d5f4e811"`
[INFO] [stderr]     Checking matches v0.1.7
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking termcolor v1.0.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]    Compiling syn v0.14.8
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking unicode-bidi v0.3.4
[INFO] [stderr]     Checking aho-corasick v0.6.6
[INFO] [stderr]     Checking combine v3.5.1
[INFO] [stderr]     Checking regex v1.0.2
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking url v1.7.1
[INFO] [stderr]     Checking env_logger v0.5.12
[INFO] [stderr]    Compiling synstructure v0.9.0
[INFO] [stderr]    Compiling structopt-derive v0.2.10
[INFO] [stderr]    Compiling failure_derive v0.1.2
[INFO] [stderr]     Checking structopt v0.2.10
[INFO] [stderr]     Checking failure v0.1.2
[INFO] [stderr]     Checking nginx-config v0.13.2
[INFO] [stderr]     Checking nginx-config-mod v0.2.9 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/bin/nginx_config_mod/modify.rs:340:21
[INFO] [stderr]     |
[INFO] [stderr] 340 |                 let mut s = replacement.to_string();
[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/bin/nginx_config_mod/modify.rs:340:21
[INFO] [stderr]     |
[INFO] [stderr] 340 |                 let mut s = replacement.to_string();
[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 46.01s
[INFO] running `"docker" "inspect" "019047648e74ff61780f88128a846643f877f42d2d06f63568b28300d5f4e811"`
[INFO] running `"docker" "rm" "-f" "019047648e74ff61780f88128a846643f877f42d2d06f63568b28300d5f4e811"`
[INFO] [stdout] 019047648e74ff61780f88128a846643f877f42d2d06f63568b28300d5f4e811