[INFO] updating cached repository https://github.com/JoeHowarth/simulation_rust_2_vue
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 38687b7ea4d22578e04f839fd6599709e9539438
[INFO] testing JoeHowarth/simulation_rust_2_vue against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2FJoeHowarth%2Fsimulation_rust_2_vue" "work/builds/worker-0/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JoeHowarth/simulation_rust_2_vue on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[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 work/builds/worker-0/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 `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 2fbc4d5ab71770e721729f7e35e3be99dd3043e63c835a5b4ff25ca45dbd164c
[INFO] running `"docker" "start" "-a" "2fbc4d5ab71770e721729f7e35e3be99dd3043e63c835a5b4ff25ca45dbd164c"`
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling rust-ini v0.13.0
[INFO] [stderr]    Compiling anymap v0.12.1
[INFO] [stderr]    Compiling linked-hash-map v0.3.0
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling nom v4.2.0
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling fxhash v0.2.1
[INFO] [stderr]    Compiling term v0.5.1
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling slog-async v2.3.0
[INFO] [stderr]    Compiling chrono v0.4.6
[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 shred-derive v0.5.1
[INFO] [stderr]    Compiling specs-derive v0.2.0
[INFO] [stderr]    Compiling derive_more v0.14.0
[INFO] [stderr]    Compiling mio-extras v2.0.5
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling parking_lot v0.5.5
[INFO] [stderr]    Compiling ws v0.7.9
[INFO] [stderr]    Compiling slog-term v2.4.0
[INFO] [stderr]    Compiling shrev v1.0.1
[INFO] [stderr]    Compiling alga v0.7.2
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling serde-hjson v0.8.2
[INFO] [stderr]    Compiling crossbeam-deque v0.6.3
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling crossbeam v0.6.0
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling config v0.9.2
[INFO] [stderr]    Compiling nalgebra v0.16.13
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling slog-scope v4.1.1
[INFO] [stderr]    Compiling typescript-definitions-derive v0.1.10
[INFO] [stderr]    Compiling hibitset v0.5.4
[INFO] [stderr]    Compiling shred v0.7.1
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/shred-0.7.1/src/lib.rs:57:34
[INFO] [stderr]    |
[INFO] [stderr] 57 | #![cfg_attr(feature = "nightly", feature(core_intrinsics))]
[INFO] [stderr]    |                                  ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `shred`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning[E0502]: cannot borrow `*self` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/nalgebra-0.16.13/src/base/cg.rs:291:44
[INFO] [stderr]     |
[INFO] [stderr] 291 |                 self[(j, i)] += shift[j] * self[(D::dim() - 1, i)];
[INFO] [stderr]     |                 ---------------------------^^^^-------------------
[INFO] [stderr]     |                 |                          |
[INFO] [stderr]     |                 |                          immutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow occurs here
[INFO] [stderr]     |                 mutable borrow later used here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]     = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "2fbc4d5ab71770e721729f7e35e3be99dd3043e63c835a5b4ff25ca45dbd164c"`
[INFO] running `"docker" "rm" "-f" "2fbc4d5ab71770e721729f7e35e3be99dd3043e63c835a5b4ff25ca45dbd164c"`
[INFO] [stdout] 2fbc4d5ab71770e721729f7e35e3be99dd3043e63c835a5b4ff25ca45dbd164c