[INFO] cloning repository https://github.com/JoeHowarth/simulation_rust_2_vue
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JoeHowarth/simulation_rust_2_vue" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoeHowarth%2Fsimulation_rust_2_vue", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoeHowarth%2Fsimulation_rust_2_vue'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fbf55514d90a07c8c853faeb079d8eefcfe54341
[INFO] testing JoeHowarth/simulation_rust_2_vue against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoeHowarth%2Fsimulation_rust_2_vue" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JoeHowarth/simulation_rust_2_vue on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JoeHowarth/simulation_rust_2_vue
[INFO] disabled cargo feature 'default-run' from git repo https://github.com/JoeHowarth/simulation_rust_2_vue
[INFO] finished tweaking git repo https://github.com/JoeHowarth/simulation_rust_2_vue
[INFO] tweaked toml for git repo https://github.com/JoeHowarth/simulation_rust_2_vue written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/JoeHowarth/simulation_rust_2_vue already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "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" "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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7557fb3da28f8a4af0a920a15766e00bed6afcb07ef1845738138bfb922a001d
[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" "7557fb3da28f8a4af0a920a15766e00bed6afcb07ef1845738138bfb922a001d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7557fb3da28f8a4af0a920a15766e00bed6afcb07ef1845738138bfb922a001d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7557fb3da28f8a4af0a920a15766e00bed6afcb07ef1845738138bfb922a001d", kill_on_drop: false }`
[INFO] [stdout] 7557fb3da28f8a4af0a920a15766e00bed6afcb07ef1845738138bfb922a001d
[INFO] running `Command { std: "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" "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" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 679c7d07839a5d7a958159b46c1e50fb4dcda16cb81495ad2c345a4466d6bd7f
[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" "679c7d07839a5d7a958159b46c1e50fb4dcda16cb81495ad2c345a4466d6bd7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.87
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling cc v1.0.29
[INFO] [stderr]    Compiling ucd-trie v0.1.1
[INFO] [stderr]    Compiling slog v2.4.1
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling rust-ini v0.13.0
[INFO] [stderr]    Compiling take_mut v0.2.2
[INFO] [stderr]    Compiling anymap v0.12.1
[INFO] [stderr]    Compiling ord_subset v3.1.1
[INFO] [stderr]    Compiling crossbeam-utils v0.6.5
[INFO] [stderr]    Compiling proc-macro2 v0.2.3
[INFO] [stderr]    Compiling yaml-rust v0.4.2
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling rand v0.5.6
[INFO] [stderr]    Compiling isatty v0.1.9
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling approx v0.3.1
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling nom v4.2.0
[INFO] [stderr]    Compiling generic-array v0.11.1
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling pest v2.1.0
[INFO] [stderr]    Compiling bytes v0.4.11
[INFO] [stderr]    Compiling crossbeam-channel v0.3.8
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling mio v0.6.16
[INFO] [stderr]    Compiling quote v0.4.2
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling parking_lot v0.5.5
[INFO] [stderr]    Compiling syn v0.12.15
[INFO] [stderr]    Compiling slog-async v2.3.0
[INFO] [stderr]    Compiling mio-extras v2.0.5
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling pest_meta v2.1.0
[INFO] [stderr]    Compiling slog-term v2.4.0
[INFO] [stderr]    Compiling ws v0.7.9
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling serde-hjson v0.8.2
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling specs-derive v0.2.0
[INFO] [stderr]    Compiling serde_json v1.0.38
[INFO] [stderr]    Compiling toml v0.4.10
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling serde_derive_internals v0.24.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling alga v0.7.2
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling crossbeam v0.6.0
[INFO] [stderr]    Compiling config v0.9.2
[INFO] [stderr]    Compiling slog-scope v4.1.1
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling derivative v1.0.2
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.87
[INFO] [stderr]    Compiling shred-derive v0.5.1
[INFO] [stderr]    Compiling derive_more v0.14.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling shred v0.7.1
[INFO] [stderr]    Compiling hibitset v0.5.4
[INFO] [stderr]    Compiling typescript-definitions-derive v0.1.10
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/shred-0.7.1/src/lib.rs:57:34
[INFO] [stdout]    |
[INFO] [stdout] 57 | #![cfg_attr(feature = "nightly", feature(core_intrinsics))]
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `shred`
[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" "679c7d07839a5d7a958159b46c1e50fb4dcda16cb81495ad2c345a4466d6bd7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "679c7d07839a5d7a958159b46c1e50fb4dcda16cb81495ad2c345a4466d6bd7f", kill_on_drop: false }`
[INFO] [stdout] 679c7d07839a5d7a958159b46c1e50fb4dcda16cb81495ad2c345a4466d6bd7f