[INFO] cloning repository https://github.com/thehenrymcintosh/imageserver_optimiser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thehenrymcintosh/imageserver_optimiser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthehenrymcintosh%2Fimageserver_optimiser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthehenrymcintosh%2Fimageserver_optimiser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 31f7fbd172d2920b9e9b5d8f4eaf5a030156e557
[INFO] checking thehenrymcintosh/imageserver_optimiser against master#39b841dfe36f90a7cd111e7f0c55f32594f6e578 for pr-77035
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthehenrymcintosh%2Fimageserver_optimiser" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thehenrymcintosh/imageserver_optimiser on toolchain 39b841dfe36f90a7cd111e7f0c55f32594f6e578
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/thehenrymcintosh/imageserver_optimiser
[INFO] finished tweaking git repo https://github.com/thehenrymcintosh/imageserver_optimiser
[INFO] tweaked toml for git repo https://github.com/thehenrymcintosh/imageserver_optimiser written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/thehenrymcintosh/imageserver_optimiser already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 08fe311fc7551b7ea59d271a06873fbce04bd22b2567aed2d03a57cd0a4dd3d3
[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" "08fe311fc7551b7ea59d271a06873fbce04bd22b2567aed2d03a57cd0a4dd3d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "08fe311fc7551b7ea59d271a06873fbce04bd22b2567aed2d03a57cd0a4dd3d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08fe311fc7551b7ea59d271a06873fbce04bd22b2567aed2d03a57cd0a4dd3d3", kill_on_drop: false }`
[INFO] [stdout] 08fe311fc7551b7ea59d271a06873fbce04bd22b2567aed2d03a57cd0a4dd3d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+39b841dfe36f90a7cd111e7f0c55f32594f6e578" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d8be353370e41ec9e96005abbfc408dcb0f98f11da9ce1963d35b1f8585b4f0
[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" "1d8be353370e41ec9e96005abbfc408dcb0f98f11da9ce1963d35b1f8585b4f0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking lazycell v1.3.0
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking dotenv v0.15.0
[INFO] [stderr]     Checking state v0.4.2
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking inotify-sys v0.1.4
[INFO] [stderr]     Checking filetime v0.2.13
[INFO] [stderr]     Checking inotify v0.7.1
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]     Checking notify v4.0.15
[INFO] [stderr]     Checking imageserver_optimiser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `cookie`
[INFO] [stdout]   --> src/webp_buffer.rs:44:51
[INFO] [stdout]    |
[INFO] [stdout] 44 |         Ok(RawEvent{path: Some(path), op: Ok(op), cookie}) => {
[INFO] [stdout]    |                                                   ^^^^^^ help: try ignoring the field: `cookie: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cookie`
[INFO] [stdout]   --> src/webp_buffer.rs:44:51
[INFO] [stdout]    |
[INFO] [stdout] 44 |         Ok(RawEvent{path: Some(path), op: Ok(op), cookie}) => {
[INFO] [stdout]    |                                                   ^^^^^^ help: try ignoring the field: `cookie: _`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `plain`
[INFO] [stdout]    --> src/log.rs:223:10
[INFO] [stdout]     |
[INFO] [stdout] 223 |   pub fn plain(mut self) -> Trace {
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `plain`
[INFO] [stdout]    --> src/log.rs:223:10
[INFO] [stdout]     |
[INFO] [stdout] 223 |   pub fn plain(mut self) -> Trace {
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.47s
[INFO] running `Command { std: "docker" "inspect" "1d8be353370e41ec9e96005abbfc408dcb0f98f11da9ce1963d35b1f8585b4f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d8be353370e41ec9e96005abbfc408dcb0f98f11da9ce1963d35b1f8585b4f0", kill_on_drop: false }`
[INFO] [stdout] 1d8be353370e41ec9e96005abbfc408dcb0f98f11da9ce1963d35b1f8585b4f0