[INFO] updating cached repository gfreezy/rust-raft [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/gfreezy/rust-raft [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/gfreezy/rust-raft" "work/ex/beta-1.37-6/sources/1.36.0/gh/gfreezy/rust-raft"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/gfreezy/rust-raft'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/gfreezy/rust-raft" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/gfreezy/rust-raft"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/gfreezy/rust-raft'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] f101591ec62fc00acfd954b7729f79b471d69674 [INFO] sha for GitHub repo gfreezy/rust-raft: f101591ec62fc00acfd954b7729f79b471d69674 [INFO] validating manifest of gfreezy/rust-raft 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 gfreezy/rust-raft 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 gfreezy/rust-raft [INFO] finished frobbing gfreezy/rust-raft [INFO] frobbed toml for gfreezy/rust-raft written to work/ex/beta-1.37-6/sources/1.36.0/gh/gfreezy/rust-raft/Cargo.toml [INFO] started frobbing gfreezy/rust-raft [INFO] finished frobbing gfreezy/rust-raft [INFO] frobbed toml for gfreezy/rust-raft written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/gfreezy/rust-raft/Cargo.toml [INFO] crate gfreezy/rust-raft 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] [stderr] Blocking waiting for file lock on package cache [INFO] testing gfreezy/rust-raft 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-1/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/gfreezy/rust-raft:/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] 59bf00d06808242b408db6eaa1bc093d9eef18a1d01eea2cf72e22fa0adfed6c [INFO] running `"docker" "start" "-a" "59bf00d06808242b408db6eaa1bc093d9eef18a1d01eea2cf72e22fa0adfed6c"` [INFO] [stderr] Compiling scopeguard v0.3.3 [INFO] [stderr] Compiling either v1.4.0 [INFO] [stderr] Compiling rayon-core v1.3.0 [INFO] [stderr] Compiling yansi v0.3.4 [INFO] [stderr] Compiling linked-hash-map v0.5.0 [INFO] [stderr] Compiling state v0.3.3 [INFO] [stderr] Compiling iovec v0.1.1 [INFO] [stderr] Compiling toml v0.4.5 [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/state-0.3.3/src/lib.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(const_fn)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [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/state-0.3.3/src/lib.rs:2:1 [INFO] [stderr] | [INFO] [stderr] 2 | #![feature(const_unsafe_cell_new)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [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/state-0.3.3/src/lib.rs:3:1 [INFO] [stderr] | [INFO] [stderr] 3 | #![feature(const_atomic_usize_new)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [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/state-0.3.3/src/lib.rs:4:1 [INFO] [stderr] | [INFO] [stderr] 4 | #![feature(const_atomic_bool_new)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to 4 previous errors [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: Could not compile `state`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [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/yansi-0.3.4/src/lib.rs:1:32 [INFO] [stderr] | [INFO] [stderr] 1 | #![cfg_attr(feature="nightly", feature(const_atomic_bool_new))] [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 `yansi`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "59bf00d06808242b408db6eaa1bc093d9eef18a1d01eea2cf72e22fa0adfed6c"` [INFO] running `"docker" "rm" "-f" "59bf00d06808242b408db6eaa1bc093d9eef18a1d01eea2cf72e22fa0adfed6c"` [INFO] [stdout] 59bf00d06808242b408db6eaa1bc093d9eef18a1d01eea2cf72e22fa0adfed6c