[INFO] updating cached repository https://github.com/johnsnewby/mjpeg
[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] 1f68d6bf1a00afcdd7beabcd513ffa7f075ef657
[INFO] checking johnsnewby/mjpeg against master#6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257 for pr-70872
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohnsnewby%2Fmjpeg" "/workspace/builds/worker-2/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/johnsnewby/mjpeg on toolchain 6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/johnsnewby/mjpeg
[INFO] finished tweaking git repo https://github.com/johnsnewby/mjpeg
[INFO] tweaked toml for git repo https://github.com/johnsnewby/mjpeg written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/johnsnewby/mjpeg already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-2/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+6dee5f1126dfd5c9314ee5ae9d9eb010e35ef257" "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] a4cc8ecf27deadb658a8a795d7404521997f1cbc13c82667d279554dd7ab4a45
[INFO] running `"docker" "start" "-a" "a4cc8ecf27deadb658a8a795d7404521997f1cbc13c82667d279554dd7ab4a45"`
[INFO] [stderr]    Compiling zmq v0.9.2
[INFO] [stderr]     Checking finally-block v0.2.0
[INFO] [stderr]     Checking iter-read v0.2.1
[INFO] [stderr]     Checking simple-error v0.2.1
[INFO] [stderr]    Compiling metadeps v1.1.2
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking deflate v0.8.4
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.8
[INFO] [stderr]     Checking futures-util v0.3.4
[INFO] [stderr]    Compiling zmq-sys v0.11.0
[INFO] [stderr]     Checking png v0.16.2
[INFO] [stderr]     Checking url v2.1.1
[INFO] [stderr]     Checking tiny_http v0.6.2
[INFO] [stderr]     Checking image v0.23.3
[INFO] [stderr]     Checking tokio v0.2.17
[INFO] [stderr]     Checking pin-project v0.4.8
[INFO] [stderr]     Checking futures-executor v0.3.4
[INFO] [stderr]     Checking futures v0.3.4
[INFO] [stderr]     Checking tokio-util v0.3.1
[INFO] [stderr]     Checking h2 v0.2.4
[INFO] [stderr]     Checking hyper v0.13.4
[INFO] [stderr]     Checking mjpeg-proxy v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `scaler1`
[INFO] [stderr]   --> src/scaler.rs:46:9
[INFO] [stderr]    |
[INFO] [stderr] 46 |     let scaler1 = get_scaler(1).unwrap();
[INFO] [stderr]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_scaler1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 44.28s
[INFO] running `"docker" "inspect" "a4cc8ecf27deadb658a8a795d7404521997f1cbc13c82667d279554dd7ab4a45"`
[INFO] running `"docker" "rm" "-f" "a4cc8ecf27deadb658a8a795d7404521997f1cbc13c82667d279554dd7ab4a45"`
[INFO] [stdout] a4cc8ecf27deadb658a8a795d7404521997f1cbc13c82667d279554dd7ab4a45