[INFO] updating cached repository aejt/sparse-octree-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/aejt/sparse-octree-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/aejt/sparse-octree-rs" "work/ex/beta-1.38-1/sources/1.37.0/gh/aejt/sparse-octree-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/aejt/sparse-octree-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/aejt/sparse-octree-rs" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aejt/sparse-octree-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aejt/sparse-octree-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c6f3fa5de5e1ed84d53d36787ee785179037accf
[INFO] sha for GitHub repo aejt/sparse-octree-rs: c6f3fa5de5e1ed84d53d36787ee785179037accf
[INFO] validating manifest of aejt/sparse-octree-rs 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 aejt/sparse-octree-rs 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 aejt/sparse-octree-rs
[INFO] finished frobbing aejt/sparse-octree-rs
[INFO] frobbed toml for aejt/sparse-octree-rs written to work/ex/beta-1.38-1/sources/1.37.0/gh/aejt/sparse-octree-rs/Cargo.toml
[INFO] started frobbing aejt/sparse-octree-rs
[INFO] finished frobbing aejt/sparse-octree-rs
[INFO] frobbed toml for aejt/sparse-octree-rs written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aejt/sparse-octree-rs/Cargo.toml
[INFO] crate aejt/sparse-octree-rs 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 aejt/sparse-octree-rs 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-5/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/aejt/sparse-octree-rs:/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] c23db30f56e7e02add9cb12eeb061c6d5eeec9c8cefbd1e418c142b0da2bbf2c
[INFO] running `"docker" "start" "-a" "c23db30f56e7e02add9cb12eeb061c6d5eeec9c8cefbd1e418c142b0da2bbf2c"`
[INFO] [stderr]    Compiling sparse-octree v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(nll)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(inclusive_range_syntax)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: the item `std` is imported redundantly
[INFO] [stderr]   --> src/sparse_octree/sparse_octree.rs:47:13
[INFO] [stderr]    |
[INFO] [stderr] 47 |         use std;
[INFO] [stderr]    |             ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0554`.
[INFO] [stderr] error: Could not compile `sparse-octree`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "c23db30f56e7e02add9cb12eeb061c6d5eeec9c8cefbd1e418c142b0da2bbf2c"`
[INFO] running `"docker" "rm" "-f" "c23db30f56e7e02add9cb12eeb061c6d5eeec9c8cefbd1e418c142b0da2bbf2c"`
[INFO] [stdout] c23db30f56e7e02add9cb12eeb061c6d5eeec9c8cefbd1e418c142b0da2bbf2c