[INFO] fetching crate nginx-config-mod 0.2.9...
[INFO] checking nginx-config-mod-0.2.9 against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] extracting crate nginx-config-mod 0.2.9 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate nginx-config-mod 0.2.9 on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nginx-config-mod 0.2.9
[INFO] finished tweaking crates.io crate nginx-config-mod 0.2.9
[INFO] tweaked toml for crates.io crate nginx-config-mod 0.2.9 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e7acff47603f6782b3b33c79722da453c1e0332d82a1da862ecc51a94f0f21a5
[INFO] running `Command { std: "docker" "start" "-a" "e7acff47603f6782b3b33c79722da453c1e0332d82a1da862ecc51a94f0f21a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e7acff47603f6782b3b33c79722da453c1e0332d82a1da862ecc51a94f0f21a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7acff47603f6782b3b33c79722da453c1e0332d82a1da862ecc51a94f0f21a5", kill_on_drop: false }`
[INFO] [stdout] e7acff47603f6782b3b33c79722da453c1e0332d82a1da862ecc51a94f0f21a5
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4b0d8d3df4f63d7ac275e6a587f7a2c53dfad8a5d605e3563f9edb1c0dbab73
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e4b0d8d3df4f63d7ac275e6a587f7a2c53dfad8a5d605e3563f9edb1c0dbab73", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]     Checking matches v0.1.8
[INFO] [stderr]     Checking tinyvec_macros v0.1.0
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ascii v0.9.3
[INFO] [stderr]     Checking quick-error v1.2.3
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking addr2line v0.15.2
[INFO] [stderr]     Checking unicode-bidi v0.3.5
[INFO] [stderr]    Compiling backtrace v0.3.60
[INFO] [stderr]     Checking bitflags v1.2.1
[INFO] [stderr]     Checking tinyvec v1.3.1
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking humantime v1.3.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking combine v3.8.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling structopt-derive v0.2.18
[INFO] [stderr]     Checking nginx-config v0.13.2
[INFO] [stderr]     Checking structopt v0.2.18
[INFO] [stderr]     Checking nginx-config-mod v0.2.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/checks/proxy_pass.rs:30:33
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let mut errors = Vec::new();;
[INFO] [stdout]    |                                 ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> src/checks/proxy_pass.rs:30:33
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let mut errors = Vec::new();;
[INFO] [stdout]    |                                 ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/nginx_config_mod/modify.rs:340:21
[INFO] [stdout]     |
[INFO] [stdout] 340 |                 let mut s = replacement.to_string();
[INFO] [stdout]     |                     ----^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/nginx_config_mod/modify.rs:340:21
[INFO] [stdout]     |
[INFO] [stdout] 340 |                 let mut s = replacement.to_string();
[INFO] [stdout]     |                     ----^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.19s
[INFO] running `Command { std: "docker" "inspect" "e4b0d8d3df4f63d7ac275e6a587f7a2c53dfad8a5d605e3563f9edb1c0dbab73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4b0d8d3df4f63d7ac275e6a587f7a2c53dfad8a5d605e3563f9edb1c0dbab73", kill_on_drop: false }`
[INFO] [stdout] e4b0d8d3df4f63d7ac275e6a587f7a2c53dfad8a5d605e3563f9edb1c0dbab73