[INFO] updating cached repository IGreyGooI/halite3-starter-kits-rs
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/IGreyGooI/halite3-starter-kits-rs
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/IGreyGooI/halite3-starter-kits-rs" "work/ex/beta-1.37-6/sources/1.36.0/gh/IGreyGooI/halite3-starter-kits-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/IGreyGooI/halite3-starter-kits-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/IGreyGooI/halite3-starter-kits-rs" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/IGreyGooI/halite3-starter-kits-rs"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/IGreyGooI/halite3-starter-kits-rs'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8fee25cde0a0f0c21c4cde5d9a6eb3110e5a9047
[INFO] sha for GitHub repo IGreyGooI/halite3-starter-kits-rs: 8fee25cde0a0f0c21c4cde5d9a6eb3110e5a9047
[INFO] validating manifest of IGreyGooI/halite3-starter-kits-rs on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of IGreyGooI/halite3-starter-kits-rs on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing IGreyGooI/halite3-starter-kits-rs
[INFO] finished frobbing IGreyGooI/halite3-starter-kits-rs
[INFO] frobbed toml for IGreyGooI/halite3-starter-kits-rs written to work/ex/beta-1.37-6/sources/1.36.0/gh/IGreyGooI/halite3-starter-kits-rs/Cargo.toml
[INFO] started frobbing IGreyGooI/halite3-starter-kits-rs
[INFO] finished frobbing IGreyGooI/halite3-starter-kits-rs
[INFO] frobbed toml for IGreyGooI/halite3-starter-kits-rs written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/IGreyGooI/halite3-starter-kits-rs/Cargo.toml
[INFO] crate IGreyGooI/halite3-starter-kits-rs already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing IGreyGooI/halite3-starter-kits-rs against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/IGreyGooI/halite3-starter-kits-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" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] b70b0df69ff8dcf8f2cf5383a33d4d6a12c4a42380d0e9b727bde4cc4cc2e973
[INFO] running `"docker" "start" "-a" "b70b0df69ff8dcf8f2cf5383a33d4d6a12c4a42380d0e9b727bde4cc4cc2e973"`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling num-bigint v0.2.1
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling rand v0.5.5
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling num v0.2.0
[INFO] [stderr]    Compiling archon v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error[E0554]: #![feature] may not be used on the stable release channel
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(associated_consts)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:6:1
[INFO] [stderr]   |
[INFO] [stderr] 6 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Structure`
[INFO] [stderr]   --> src/main.rs:18:27
[INFO] [stderr]    |
[INFO] [stderr] 18 |                           Structure};
[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 `archon`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "b70b0df69ff8dcf8f2cf5383a33d4d6a12c4a42380d0e9b727bde4cc4cc2e973"`
[INFO] running `"docker" "rm" "-f" "b70b0df69ff8dcf8f2cf5383a33d4d6a12c4a42380d0e9b727bde4cc4cc2e973"`
[INFO] [stdout] b70b0df69ff8dcf8f2cf5383a33d4d6a12c4a42380d0e9b727bde4cc4cc2e973