[INFO] updating cached repository 29rou/c-som
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/29rou/c-som
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/29rou/c-som" "work/ex/beta-1.37-6/sources/1.36.0/gh/29rou/c-som"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/29rou/c-som'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/29rou/c-som" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/29rou/c-som"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/29rou/c-som'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4d39c9291406cb5fff61b2a35e05bd192d0d5303
[INFO] sha for GitHub repo 29rou/c-som: 4d39c9291406cb5fff61b2a35e05bd192d0d5303
[INFO] validating manifest of 29rou/c-som 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 29rou/c-som 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 29rou/c-som
[INFO] finished frobbing 29rou/c-som
[INFO] frobbed toml for 29rou/c-som written to work/ex/beta-1.37-6/sources/1.36.0/gh/29rou/c-som/Cargo.toml
[INFO] started frobbing 29rou/c-som
[INFO] finished frobbing 29rou/c-som
[INFO] frobbed toml for 29rou/c-som written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/29rou/c-som/Cargo.toml
[INFO] crate 29rou/c-som 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 29rou/c-som 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-4/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/29rou/c-som:/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] 014c47c139fd2ce3144a68d04d1c60f15048c4ed534122265ece7c3410362158
[INFO] running `"docker" "start" "-a" "014c47c139fd2ce3144a68d04d1c60f15048c4ed534122265ece7c3410362158"`
[INFO] [stderr] warning: `panic` setting is ignored for `test` profile
[INFO] [stderr]    Compiling num-traits v0.2.2
[INFO] [stderr]    Compiling libc v0.2.40
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling either v1.5.0
[INFO] [stderr]    Compiling itertools v0.7.8
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling num-integer v0.1.36
[INFO] [stderr]    Compiling num-iter v0.1.35
[INFO] [stderr]    Compiling generic-array v0.11.0
[INFO] [stderr]    Compiling num-bigint v0.1.43
[INFO] [stderr]    Compiling num-complex v0.1.43
[INFO] [stderr]    Compiling num-rational v0.1.42
[INFO] [stderr]    Compiling num v0.1.42
[INFO] [stderr]    Compiling c-som 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(core_intrinsics)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `U0`, `U10000`, `U100`, `U16`, `U17`, `U1`, `U20`, `U2`, `U32`, `U3`, `U4`, `U5`, `U6`
[INFO] [stderr]  --> src/main.rs:9:25
[INFO] [stderr]   |
[INFO] [stderr] 9 |     use self::typenum::{U0, U1, U2, U3, U4, U5, U6, U10, U16, U17, U20, U32, U100, U10000};
[INFO] [stderr]   |                         ^^  ^^  ^^  ^^  ^^  ^^  ^^       ^^^  ^^^  ^^^  ^^^  ^^^^  ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[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 `c-som`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "014c47c139fd2ce3144a68d04d1c60f15048c4ed534122265ece7c3410362158"`
[INFO] running `"docker" "rm" "-f" "014c47c139fd2ce3144a68d04d1c60f15048c4ed534122265ece7c3410362158"`
[INFO] [stdout] 014c47c139fd2ce3144a68d04d1c60f15048c4ed534122265ece7c3410362158