[INFO] crate arc 0.0.1 is already in cache
[INFO] testing arc-0.0.1 against master#28742a1146f10a4f09369baad027a464acb7a766 for pr-71274
[INFO] extracting crate arc 0.0.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate arc 0.0.1 on toolchain 28742a1146f10a4f09369baad027a464acb7a766
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate arc 0.0.1
[INFO] finished tweaking crates.io crate arc 0.0.1
[INFO] tweaked toml for crates.io crate arc 0.0.1 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+28742a1146f10a4f09369baad027a464acb7a766" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+28742a1146f10a4f09369baad027a464acb7a766" "build" "--frozen"`
[INFO] [stdout] ffbf173742574e7c965eb3ce5b7f2f5bdb305dc68c684da22a730f1ea625a752
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "ffbf173742574e7c965eb3ce5b7f2f5bdb305dc68c684da22a730f1ea625a752"`
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling approx v0.1.1
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling backtrace-sys v0.1.35
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling backtrace v0.3.46
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling palette v0.3.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling failure v0.1.7
[INFO] [stderr]    Compiling arc v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.13s
[INFO] running `"docker" "inspect" "ffbf173742574e7c965eb3ce5b7f2f5bdb305dc68c684da22a730f1ea625a752"`
[INFO] running `"docker" "rm" "-f" "ffbf173742574e7c965eb3ce5b7f2f5bdb305dc68c684da22a730f1ea625a752"`
[INFO] [stdout] ffbf173742574e7c965eb3ce5b7f2f5bdb305dc68c684da22a730f1ea625a752
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+28742a1146f10a4f09369baad027a464acb7a766" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d8b06644e34e925a121403309c6a4dd06eea0586885b3619c696dfe58ac2bb12
[INFO] running `"docker" "start" "-a" "d8b06644e34e925a121403309c6a4dd06eea0586885b3619c696dfe58ac2bb12"`
[INFO] [stderr]    Compiling arc v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Application`
[INFO] [stderr]  --> examples/playground.rs:6:15
[INFO] [stderr]   |
[INFO] [stderr] 6 |     let app = Application::new();
[INFO] [stderr]   |               ^^^^^^^^^^^ use of undeclared type or module `Application`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Window`
[INFO] [stderr]  --> examples/playground.rs:8:18
[INFO] [stderr]   |
[INFO] [stderr] 8 |     let window = Window::new(900., 700.);
[INFO] [stderr]   |                  ^^^^^^ use of undeclared type or module `Window`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `SolidColor`
[INFO] [stderr]   --> examples/playground.rs:11:23
[INFO] [stderr]    |
[INFO] [stderr] 11 |     let mut top_bar = SolidColor::new();
[INFO] [stderr]    |                       ^^^^^^^^^^ use of undeclared type or module `SolidColor`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `SolidColor`
[INFO] [stderr]   --> examples/playground.rs:15:30
[INFO] [stderr]    |
[INFO] [stderr] 15 |     let mut top_bar_border = SolidColor::new();
[INFO] [stderr]    |                              ^^^^^^^^^^ use of undeclared type or module `SolidColor`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `SolidColor`
[INFO] [stderr]   --> examples/playground.rs:19:26
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut bottom_bar = SolidColor::new();
[INFO] [stderr]    |                          ^^^^^^^^^^ use of undeclared type or module `SolidColor`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `SolidColor`
[INFO] [stderr]   --> examples/playground.rs:23:33
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let mut bottom_bar_border = SolidColor::new();
[INFO] [stderr]    |                                 ^^^^^^^^^^ use of undeclared type or module `SolidColor`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `SolidColor`
[INFO] [stderr]   --> examples/playground.rs:27:20
[INFO] [stderr]    |
[INFO] [stderr] 27 |     let mut main = SolidColor::new();
[INFO] [stderr]    |                    ^^^^^^^^^^ use of undeclared type or module `SolidColor`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `Column`
[INFO] [stderr]   --> examples/playground.rs:30:25
[INFO] [stderr]    |
[INFO] [stderr] 30 |     let mut container = Column::new();
[INFO] [stderr]    |                         ^^^^^^ use of undeclared type or module `Column`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `arc::*`
[INFO] [stderr]  --> examples/playground.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use arc::*;
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 8 previous errors; 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error: could not compile `arc`.
[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 `"docker" "inspect" "d8b06644e34e925a121403309c6a4dd06eea0586885b3619c696dfe58ac2bb12"`
[INFO] running `"docker" "rm" "-f" "d8b06644e34e925a121403309c6a4dd06eea0586885b3619c696dfe58ac2bb12"`
[INFO] [stdout] d8b06644e34e925a121403309c6a4dd06eea0586885b3619c696dfe58ac2bb12