[INFO] fetching crate amethyst_core 0.15.3...
[INFO] checking amethyst_core-0.15.3 against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] extracting crate amethyst_core 0.15.3 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate amethyst_core 0.15.3 on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate amethyst_core 0.15.3
[INFO] finished tweaking crates.io crate amethyst_core 0.15.3
[INFO] tweaked toml for crates.io crate amethyst_core 0.15.3 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 45bb417281bbff11861b7015a7985332e36a11532a5eef58b68c6dee0df6567f
[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" "45bb417281bbff11861b7015a7985332e36a11532a5eef58b68c6dee0df6567f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "45bb417281bbff11861b7015a7985332e36a11532a5eef58b68c6dee0df6567f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45bb417281bbff11861b7015a7985332e36a11532a5eef58b68c6dee0df6567f", kill_on_drop: false }`
[INFO] [stdout] 45bb417281bbff11861b7015a7985332e36a11532a5eef58b68c6dee0df6567f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ce2c4557a89eb9f33818de13ea4e5c1c1be63cc799b1061e1b1da8d54a5f814
[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" "5ce2c4557a89eb9f33818de13ea4e5c1c1be63cc799b1061e1b1da8d54a5f814", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling syn v1.0.50
[INFO] [stderr]     Checking rayon v1.5.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking num-rational v0.2.4
[INFO] [stderr]     Checking hibitset v0.6.3
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling shred-derive v0.6.2
[INFO] [stderr]    Compiling specs-derive v0.4.1
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling getset v0.0.9
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling alga_derive v0.9.2
[INFO] [stderr]     Checking shred v0.10.2
[INFO] [stderr]     Checking specs v0.16.1
[INFO] [stderr]     Checking specs-hierarchy v0.6.0
[INFO] [stderr]     Checking serde v1.0.117
[INFO] [stderr]     Checking num-complex v0.2.4
[INFO] [stderr]     Checking alga v0.9.3
[INFO] [stderr]     Checking nalgebra v0.19.0
[INFO] [stderr]     Checking amethyst_core v0.15.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ron`
[INFO] [stdout]    --> src/transform/components/transform.rs:768:13
[INFO] [stdout]     |
[INFO] [stdout] 768 |             ron::ser::to_string_pretty(&transform, ron::ser::PrettyConfig::default()).unwrap();
[INFO] [stdout]     |             ^^^ use of undeclared crate or module `ron`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ron`
[INFO] [stdout]    --> src/transform/components/transform.rs:768:52
[INFO] [stdout]     |
[INFO] [stdout] 768 |             ron::ser::to_string_pretty(&transform, ron::ser::PrettyConfig::default()).unwrap();
[INFO] [stdout]     |                                                    ^^^ use of undeclared crate or module `ron`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ron`
[INFO] [stdout]    --> src/transform/components/transform.rs:769:37
[INFO] [stdout]     |
[INFO] [stdout] 769 |         let transform2: Transform = ron::de::from_str(&s).unwrap();
[INFO] [stdout]     |                                     ^^^ use of undeclared crate or module `ron`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `ron`
[INFO] [stdout]    --> src/transform/components/transform.rs:776:36
[INFO] [stdout]     |
[INFO] [stdout] 776 |         let transform: Transform = ron::de::from_str("()").unwrap();
[INFO] [stdout]     |                                    ^^^ use of undeclared crate or module `ron`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `amethyst_core`
[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" "5ce2c4557a89eb9f33818de13ea4e5c1c1be63cc799b1061e1b1da8d54a5f814", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ce2c4557a89eb9f33818de13ea4e5c1c1be63cc799b1061e1b1da8d54a5f814", kill_on_drop: false }`
[INFO] [stdout] 5ce2c4557a89eb9f33818de13ea4e5c1c1be63cc799b1061e1b1da8d54a5f814