[INFO] fetching crate amethyst_core 0.15.3...
[INFO] checking amethyst_core-0.15.3 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate amethyst_core 0.15.3 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate amethyst_core 0.15.3 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "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" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8652ee21c820eb81428376e85623f54d5b4465701b6eed37f5cfd9db16632087
[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" "8652ee21c820eb81428376e85623f54d5b4465701b6eed37f5cfd9db16632087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8652ee21c820eb81428376e85623f54d5b4465701b6eed37f5cfd9db16632087", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8652ee21c820eb81428376e85623f54d5b4465701b6eed37f5cfd9db16632087", kill_on_drop: false }`
[INFO] [stdout] 8652ee21c820eb81428376e85623f54d5b4465701b6eed37f5cfd9db16632087
[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" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14860beffc74947a476bf573005bbf9ebadb715f7ecdb5263e0499258b4a0ab4
[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" "14860beffc74947a476bf573005bbf9ebadb715f7ecdb5263e0499258b4a0ab4", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking rayon-core v1.9.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking amethyst_error v0.15.3
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking rayon v1.5.0
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]     Checking nalgebra v0.19.0
[INFO] [stderr]    Compiling alga_derive v0.9.2
[INFO] [stderr]     Checking hibitset v0.6.3
[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 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] warning: panic message is not a string literal
[INFO] [stdout]    --> src/transform/systems.rs:104:17
[INFO] [stdout]     |
[INFO] [stdout] 104 | /                 format!(
[INFO] [stdout] 105 | |                     "Entity {:?} had a non-finite `Transform` {:?}",
[INFO] [stdout] 106 | |                     entity, local
[INFO] [stdout] 107 | |                 )
[INFO] [stdout]     | |_________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout]     = note: the panic!() macro supports formatting, so there's no need for the format!() macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 104 |                 
[INFO] [stdout] 105 |                     "Entity {:?} had a non-finite `Transform` {:?}",
[INFO] [stdout] 106 |                     entity, local
[INFO] [stdout] 107 |                 
[INFO] [stdout]     |
[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] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[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" "14860beffc74947a476bf573005bbf9ebadb715f7ecdb5263e0499258b4a0ab4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14860beffc74947a476bf573005bbf9ebadb715f7ecdb5263e0499258b4a0ab4", kill_on_drop: false }`
[INFO] [stdout] 14860beffc74947a476bf573005bbf9ebadb715f7ecdb5263e0499258b4a0ab4