[INFO] cloning repository https://github.com/ackwill/rust-face-rec
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ackwill/rust-face-rec" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fackwill%2Frust-face-rec", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fackwill%2Frust-face-rec'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d2b8746319f30c2caeb7b0c1743ce55faad0357d
[INFO] testing ackwill/rust-face-rec against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fackwill%2Frust-face-rec" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ackwill/rust-face-rec on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ackwill/rust-face-rec
[INFO] finished tweaking git repo https://github.com/ackwill/rust-face-rec
[INFO] tweaked toml for git repo https://github.com/ackwill/rust-face-rec written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/ackwill/rust-face-rec already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-0/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[INFO] the lockfile is outdated, regenerating it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 `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2cea4c2553bd2aa2bed2f17cbe9517f4e1d02b400ee73d0b04ab9f05d0617bc8
[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" "2cea4c2553bd2aa2bed2f17cbe9517f4e1d02b400ee73d0b04ab9f05d0617bc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cea4c2553bd2aa2bed2f17cbe9517f4e1d02b400ee73d0b04ab9f05d0617bc8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cea4c2553bd2aa2bed2f17cbe9517f4e1d02b400ee73d0b04ab9f05d0617bc8", kill_on_drop: false }`
[INFO] [stdout] 2cea4c2553bd2aa2bed2f17cbe9517f4e1d02b400ee73d0b04ab9f05d0617bc8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 497a4e2966c716bbc2ce97917aadb567e21a078622e16d04e1a0f162b53fb13d
[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" "497a4e2966c716bbc2ce97917aadb567e21a078622e16d04e1a0f162b53fb13d", kill_on_drop: false }`
[INFO] [stderr]    Compiling lzw v0.9.0
[INFO] [stderr]    Compiling bitflags v0.3.3
[INFO] [stderr]    Compiling nn v0.1.6
[INFO] [stderr]    Compiling png v0.4.3
[INFO] [stderr]    Compiling gif v0.7.0
[INFO] [stderr]    Compiling image v0.6.1
[INFO] [stderr]    Compiling rust-face-rec v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/network.rs:180:61
[INFO] [stdout]     |
[INFO] [stdout] 180 |         Err(why) => panic!("couldn't open {}: {}", display, Error::description(&why)),
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/network.rs:188:52
[INFO] [stdout]     |
[INFO] [stdout] 188 | ...                   Error::description(&why)),
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/network.rs:203:28
[INFO] [stdout]     |
[INFO] [stdout] 203 | ...                   Error::description(&why)),
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/network.rs:210:48
[INFO] [stdout]     |
[INFO] [stdout] 210 | ...                   Error::description(&why))
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0261]: use of undeclared lifetime name `'a`
[INFO] [stdout]    --> src/recognizer/mod.rs:180:40
[INFO] [stdout]     |
[INFO] [stdout] 169 | pub fn calc_image_hist(img: &mut GrayImage, cell_x: u32, cell_y: u32) -> Histogram {
[INFO] [stdout]     |                       - help: consider introducing lifetime `'a` here: `<'a>`
[INFO] [stdout] ...
[INFO] [stdout] 180 |             let cell = img.sub_image::<'a>(x*cell_width, y*cell_height, cell_width, cell_height).to_image();
[INFO] [stdout]     |                                        ^^ undeclared lifetime
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0261`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-face-rec`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "497a4e2966c716bbc2ce97917aadb567e21a078622e16d04e1a0f162b53fb13d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "497a4e2966c716bbc2ce97917aadb567e21a078622e16d04e1a0f162b53fb13d", kill_on_drop: false }`
[INFO] [stdout] 497a4e2966c716bbc2ce97917aadb567e21a078622e16d04e1a0f162b53fb13d