[INFO] cloning repository https://github.com/quietlychris/density_clusters
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/quietlychris/density_clusters" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquietlychris%2Fdensity_clusters", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquietlychris%2Fdensity_clusters'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ec70e93a86bb57040a677572f2a1eb450ea1967f
[INFO] checking quietlychris/density_clusters against try#3e22d1f9053c0fc87629b3c6d5d9567856368e5d for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fquietlychris%2Fdensity_clusters" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/quietlychris/density_clusters on toolchain 3e22d1f9053c0fc87629b3c6d5d9567856368e5d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/quietlychris/density_clusters
[INFO] removed path dependency plotlib from git repo https://github.com/quietlychris/density_clusters
[INFO] finished tweaking git repo https://github.com/quietlychris/density_clusters
[INFO] tweaked toml for git repo https://github.com/quietlychris/density_clusters written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/quietlychris/density_clusters already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (plotlib) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr] error: the lock file /workspace/builds/worker-9/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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "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" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (plotlib) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7244c59350ff668685bee68ebfa52cae666066f8cd345eedb2b6b902dd04f101
[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" "7244c59350ff668685bee68ebfa52cae666066f8cd345eedb2b6b902dd04f101", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7244c59350ff668685bee68ebfa52cae666066f8cd345eedb2b6b902dd04f101", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7244c59350ff668685bee68ebfa52cae666066f8cd345eedb2b6b902dd04f101", kill_on_drop: false }`
[INFO] [stdout] 7244c59350ff668685bee68ebfa52cae666066f8cd345eedb2b6b902dd04f101
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+3e22d1f9053c0fc87629b3c6d5d9567856368e5d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9829ce767b7068afa1289ffb302f6b3376cb38c38773da7f6ab868041b31933d
[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" "9829ce767b7068afa1289ffb302f6b3376cb38c38773da7f6ab868041b31933d", kill_on_drop: false }`
[INFO] [stderr] warning: dependency (plotlib) specified without providing a local path, Git repository, or version to use. This will be considered an error in future versions
[INFO] [stderr]     Checking svg v0.7.2
[INFO] [stderr]     Checking num-complex v0.2.4
[INFO] [stderr]     Checking plotlib v0.5.1
[INFO] [stderr]     Checking ndarray v0.13.1
[INFO] [stderr]     Checking density_clusters v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ndarray::Array`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ndarray::Array;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ndarray::Array`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ndarray::Array;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0616]: field `representations` of struct `ContinuousView` is private
[INFO] [stdout]    --> src/main.rs:168:11
[INFO] [stdout]     |
[INFO] [stdout] 168 |         v.representations.push(Box::new(plot.clone()));
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^ private field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0616]: field `representations` of struct `ContinuousView` is private
[INFO] [stdout]    --> src/main.rs:168:11
[INFO] [stdout]     |
[INFO] [stdout] 168 |         v.representations.push(Box::new(plot.clone()));
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^ private field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0616`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0616`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `density_clusters`
[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" "9829ce767b7068afa1289ffb302f6b3376cb38c38773da7f6ab868041b31933d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9829ce767b7068afa1289ffb302f6b3376cb38c38773da7f6ab868041b31933d", kill_on_drop: false }`
[INFO] [stdout] 9829ce767b7068afa1289ffb302f6b3376cb38c38773da7f6ab868041b31933d