[INFO] cloning repository https://github.com/disDeal/vollter-integration
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/disDeal/vollter-integration" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FdisDeal%2Fvollter-integration", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FdisDeal%2Fvollter-integration'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 53fb39f9d8f61fe18c6343d6d0e8e131ea199746
[INFO] checking disDeal/vollter-integration against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FdisDeal%2Fvollter-integration" "/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/disDeal/vollter-integration on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/disDeal/vollter-integration
[INFO] finished tweaking git repo https://github.com/disDeal/vollter-integration
[INFO] tweaked toml for git repo https://github.com/disDeal/vollter-integration written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/disDeal/vollter-integration already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: the lock file /workspace/builds/worker-4/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[INFO] the lockfile is outdated, regenerating it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" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/milliams/plotlib.git`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a9e5c6a8447f43742f6a88ad6f006a31c8e711ee3d8e8c8df28e91b6e5978a21
[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" "a9e5c6a8447f43742f6a88ad6f006a31c8e711ee3d8e8c8df28e91b6e5978a21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a9e5c6a8447f43742f6a88ad6f006a31c8e711ee3d8e8c8df28e91b6e5978a21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a9e5c6a8447f43742f6a88ad6f006a31c8e711ee3d8e8c8df28e91b6e5978a21", kill_on_drop: false }`
[INFO] [stdout] a9e5c6a8447f43742f6a88ad6f006a31c8e711ee3d8e8c8df28e91b6e5978a21
[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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0f6c6e2a08ea284eee4577d1b1ff4851b81337816819b8382706fff32473f1d
[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" "f0f6c6e2a08ea284eee4577d1b1ff4851b81337816819b8382706fff32473f1d", kill_on_drop: false }`
[INFO] [stderr]     Checking svg v0.9.1
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking plotlib v0.5.1 (https://github.com/milliams/plotlib.git?branch=master#1a3c1823)
[INFO] [stderr]     Checking volter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved imports `plotlib::repr::Line`, `plotlib::repr::Scatter`
[INFO] [stdout]  --> src/main.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use plotlib::repr::{Line, Scatter};
[INFO] [stdout]   |                     ^^^^  ^^^^^^^ no `Scatter` in `repr`
[INFO] [stdout]   |                     |
[INFO] [stdout]   |                     no `Line` in `repr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `Function` in `repr`
[INFO] [stdout]   --> src/main.rs:37:31
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let orig = plotlib::repr::Function::new(func, 0., 1.)
[INFO] [stdout]    |                               ^^^^^^^^ could not find `Function` in `repr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `plotlib::repr::Line`, `plotlib::repr::Scatter`
[INFO] [stdout]  --> src/main.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use plotlib::repr::{Line, Scatter};
[INFO] [stdout]   |                     ^^^^  ^^^^^^^ no `Scatter` in `repr`
[INFO] [stdout]   |                     |
[INFO] [stdout]   |                     no `Line` in `repr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `volter`
[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] [stdout] error[E0433]: failed to resolve: could not find `Function` in `repr`
[INFO] [stdout]   --> src/main.rs:37:31
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let orig = plotlib::repr::Function::new(func, 0., 1.)
[INFO] [stdout]    |                               ^^^^^^^^ could not find `Function` in `repr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f0f6c6e2a08ea284eee4577d1b1ff4851b81337816819b8382706fff32473f1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0f6c6e2a08ea284eee4577d1b1ff4851b81337816819b8382706fff32473f1d", kill_on_drop: false }`
[INFO] [stdout] f0f6c6e2a08ea284eee4577d1b1ff4851b81337816819b8382706fff32473f1d