[INFO] fetching crate amethyst_core 0.15.3...
[INFO] testing amethyst_core-0.15.3 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate amethyst_core 0.15.3 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate amethyst_core 0.15.3 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9082f93e15785cf10de04f9a4a375413dfb93fbb5aaa581bbae646d892b7784b
[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" "9082f93e15785cf10de04f9a4a375413dfb93fbb5aaa581bbae646d892b7784b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9082f93e15785cf10de04f9a4a375413dfb93fbb5aaa581bbae646d892b7784b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9082f93e15785cf10de04f9a4a375413dfb93fbb5aaa581bbae646d892b7784b", kill_on_drop: false }`
[INFO] [stdout] 9082f93e15785cf10de04f9a4a375413dfb93fbb5aaa581bbae646d892b7784b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c11c857935e30da10d945b212bcbb6bba5c17e8830bc06f47687b506637ec13f
[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" "c11c857935e30da10d945b212bcbb6bba5c17e8830bc06f47687b506637ec13f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.57
[INFO] [stderr]    Compiling const_fn v0.4.4
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling ahash v0.3.8
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling mopa v0.2.2
[INFO] [stderr]    Compiling smallvec v1.6.0
[INFO] [stderr]    Compiling atom v0.3.6
[INFO] [stderr]    Compiling shrev v1.1.1
[INFO] [stderr]    Compiling tuple_utils v0.3.0
[INFO] [stderr]    Compiling mint v0.5.6
[INFO] [stderr]    Compiling edit-distance v2.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling generic-array v0.13.2
[INFO] [stderr]    Compiling amethyst_error v0.15.3
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling quickcheck v0.9.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling crossbeam-queue v0.2.3
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling approx v0.3.2
[INFO] [stderr]    Compiling crossbeam-deque v0.8.0
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling tynm v0.1.6
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling shred-derive v0.6.3
[INFO] [stderr]    Compiling specs-derive v0.4.1
[INFO] [stderr]    Compiling alga_derive v0.9.2
[INFO] [stderr]    Compiling derive-new v0.5.8
[INFO] [stderr]    Compiling derivative v2.1.3
[INFO] [stderr]    Compiling getset v0.0.9
[INFO] [stderr]    Compiling hibitset v0.6.3
[INFO] [stderr]    Compiling shred v0.10.2
[INFO] [stderr]    Compiling specs v0.16.1
[INFO] [stderr]    Compiling specs-hierarchy v0.6.0
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling alga v0.9.3
[INFO] [stderr]    Compiling nalgebra v0.19.0
[INFO] [stderr]    Compiling amethyst_core v0.15.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 00s
[INFO] running `Command { std: "docker" "inspect" "c11c857935e30da10d945b212bcbb6bba5c17e8830bc06f47687b506637ec13f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c11c857935e30da10d945b212bcbb6bba5c17e8830bc06f47687b506637ec13f", kill_on_drop: false }`
[INFO] [stdout] c11c857935e30da10d945b212bcbb6bba5c17e8830bc06f47687b506637ec13f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 47c4b055cd7227d6d9f517d4a7ce82ec9416719bbd19756943b40e46dae8044f
[INFO] running `Command { std: "docker" "start" "-a" "47c4b055cd7227d6d9f517d4a7ce82ec9416719bbd19756943b40e46dae8044f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling 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] running `Command { std: "docker" "inspect" "47c4b055cd7227d6d9f517d4a7ce82ec9416719bbd19756943b40e46dae8044f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47c4b055cd7227d6d9f517d4a7ce82ec9416719bbd19756943b40e46dae8044f", kill_on_drop: false }`
[INFO] [stdout] 47c4b055cd7227d6d9f517d4a7ce82ec9416719bbd19756943b40e46dae8044f