[INFO] updating cached repository JoeHowarth/simulation_rust_2_vue
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/JoeHowarth/simulation_rust_2_vue
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/JoeHowarth/simulation_rust_2_vue" "work/ex/beta-1.38-1/sources/1.37.0/gh/JoeHowarth/simulation_rust_2_vue"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/JoeHowarth/simulation_rust_2_vue'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/JoeHowarth/simulation_rust_2_vue" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JoeHowarth/simulation_rust_2_vue"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JoeHowarth/simulation_rust_2_vue'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] e1381c5820454b49c6d06a3ea93ad0b9e7839e4b
[INFO] sha for GitHub repo JoeHowarth/simulation_rust_2_vue: e1381c5820454b49c6d06a3ea93ad0b9e7839e4b
[INFO] validating manifest of JoeHowarth/simulation_rust_2_vue on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of JoeHowarth/simulation_rust_2_vue on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing JoeHowarth/simulation_rust_2_vue
[INFO] disabled cargo feature 'default-run' from JoeHowarth/simulation_rust_2_vue
[INFO] finished frobbing JoeHowarth/simulation_rust_2_vue
[INFO] frobbed toml for JoeHowarth/simulation_rust_2_vue written to work/ex/beta-1.38-1/sources/1.37.0/gh/JoeHowarth/simulation_rust_2_vue/Cargo.toml
[INFO] started frobbing JoeHowarth/simulation_rust_2_vue
[INFO] disabled cargo feature 'default-run' from JoeHowarth/simulation_rust_2_vue
[INFO] finished frobbing JoeHowarth/simulation_rust_2_vue
[INFO] frobbed toml for JoeHowarth/simulation_rust_2_vue written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/JoeHowarth/simulation_rust_2_vue/Cargo.toml
[INFO] crate JoeHowarth/simulation_rust_2_vue already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing JoeHowarth/simulation_rust_2_vue against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/JoeHowarth/simulation_rust_2_vue:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 8ffb9a63d129326a467e273cafd3567267b835e9566d6b45e00cf301062260c7
[INFO] running `"docker" "start" "-a" "8ffb9a63d129326a467e273cafd3567267b835e9566d6b45e00cf301062260c7"`
[INFO] [stderr]    Compiling arrayvec v0.4.10
[INFO] [stderr]    Compiling ord_subset v3.1.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling dirs v1.0.5
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling nom v4.2.0
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling crossbeam-channel v0.3.8
[INFO] [stderr]    Compiling term v0.5.1
[INFO] [stderr]    Compiling slog-async v2.3.0
[INFO] [stderr]    Compiling parking_lot_core v0.2.14
[INFO] [stderr]    Compiling specs-derive v0.2.0
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling idna v0.1.5
[INFO] [stderr]    Compiling rand v0.6.5
[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 derive_more v0.14.0
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling mio-extras v2.0.5
[INFO] [stderr]    Compiling alga v0.7.2
[INFO] [stderr]    Compiling parking_lot v0.5.5
[INFO] [stderr]    Compiling slog-term v2.4.0
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling url v1.7.2
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling shrev v1.0.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.7.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling parking_lot v0.7.1
[INFO] [stderr]    Compiling nalgebra v0.16.13
[INFO] [stderr]    Compiling ws v0.7.9
[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 slog-scope v4.1.1
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]    Compiling serde-hjson v0.8.2
[INFO] [stderr]    Compiling typescript-definitions-derive v0.1.10
[INFO] [stderr]    Compiling config v0.9.2
[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/crater/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/crater/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" "8ffb9a63d129326a467e273cafd3567267b835e9566d6b45e00cf301062260c7"`
[INFO] running `"docker" "rm" "-f" "8ffb9a63d129326a467e273cafd3567267b835e9566d6b45e00cf301062260c7"`
[INFO] [stdout] 8ffb9a63d129326a467e273cafd3567267b835e9566d6b45e00cf301062260c7