[INFO] updating cached repository https://github.com/tailhook/nginx-config-mod
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4be0df3b7390f79536ca05b3ac27c72897746007
[INFO] checking tailhook/nginx-config-mod against master#45d050cde277b22a755847338f2acc2c7b834141 for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftailhook%2Fnginx-config-mod" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tailhook/nginx-config-mod on toolchain 45d050cde277b22a755847338f2acc2c7b834141
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/tailhook/nginx-config-mod
[INFO] finished tweaking git repo https://github.com/tailhook/nginx-config-mod
[INFO] tweaked toml for git repo https://github.com/tailhook/nginx-config-mod written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/tailhook/nginx-config-mod already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "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 `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+45d050cde277b22a755847338f2acc2c7b834141" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0de2f2b4ffcc1473212419cd47622b5dea372d60d232b9f22ae8f93486daf3d1
[INFO] running `"docker" "start" "-a" "0de2f2b4ffcc1473212419cd47622b5dea372d60d232b9f22ae8f93486daf3d1"`
[INFO] [stderr]     Checking libc v0.2.43
[INFO] [stderr]    Compiling proc-macro2 v0.4.12
[INFO] [stderr]    Compiling cc v1.0.18
[INFO] [stderr]     Checking cfg-if v0.1.5
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking ucd-util v0.1.1
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking byteorder v1.2.4
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking utf8-ranges v1.0.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking ascii v0.7.1
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking unicode-normalization v0.1.7
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking termcolor v1.0.1
[INFO] [stderr]     Checking log v0.4.3
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking regex-syntax v0.6.2
[INFO] [stderr]     Checking humantime v1.1.1
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking thread_local v0.3.5
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]     Checking aho-corasick v0.6.6
[INFO] [stderr]     Checking combine v3.5.1
[INFO] [stderr]    Compiling quote v0.6.6
[INFO] [stderr]    Compiling syn v0.14.8
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking url v1.7.1
[INFO] [stderr]     Checking regex v1.0.2
[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 failure v0.1.2
[INFO] [stderr]     Checking structopt v0.2.10
[INFO] [stderr]     Checking nginx-config v0.13.2
[INFO] [stderr]     Checking nginx-config-mod v0.2.9 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/checks/proxy_pass.rs:30:33
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let mut errors = Vec::new();;
[INFO] [stderr]    |                                 ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> src/checks/proxy_pass.rs:30:33
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let mut errors = Vec::new();;
[INFO] [stderr]    |                                 ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[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] 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: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 05s
[INFO] running `"docker" "inspect" "0de2f2b4ffcc1473212419cd47622b5dea372d60d232b9f22ae8f93486daf3d1"`
[INFO] running `"docker" "rm" "-f" "0de2f2b4ffcc1473212419cd47622b5dea372d60d232b9f22ae8f93486daf3d1"`
[INFO] [stdout] 0de2f2b4ffcc1473212419cd47622b5dea372d60d232b9f22ae8f93486daf3d1