[INFO] updating cached repository Twistbioscience/pycon-2018-rust-example [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/Twistbioscience/pycon-2018-rust-example [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/Twistbioscience/pycon-2018-rust-example" "work/ex/beta-1.37-6/sources/1.36.0/gh/Twistbioscience/pycon-2018-rust-example"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/Twistbioscience/pycon-2018-rust-example'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/Twistbioscience/pycon-2018-rust-example" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Twistbioscience/pycon-2018-rust-example"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Twistbioscience/pycon-2018-rust-example'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 273aacd5a624718ed097bb1fefe6231b86c361c5 [INFO] sha for GitHub repo Twistbioscience/pycon-2018-rust-example: 273aacd5a624718ed097bb1fefe6231b86c361c5 [INFO] validating manifest of Twistbioscience/pycon-2018-rust-example 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 Twistbioscience/pycon-2018-rust-example 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 Twistbioscience/pycon-2018-rust-example [INFO] finished frobbing Twistbioscience/pycon-2018-rust-example [INFO] frobbed toml for Twistbioscience/pycon-2018-rust-example written to work/ex/beta-1.37-6/sources/1.36.0/gh/Twistbioscience/pycon-2018-rust-example/Cargo.toml [INFO] started frobbing Twistbioscience/pycon-2018-rust-example [INFO] finished frobbing Twistbioscience/pycon-2018-rust-example [INFO] frobbed toml for Twistbioscience/pycon-2018-rust-example written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/Twistbioscience/pycon-2018-rust-example/Cargo.toml [INFO] crate Twistbioscience/pycon-2018-rust-example 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 Twistbioscience/pycon-2018-rust-example 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-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/Twistbioscience/pycon-2018-rust-example:/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] 8637b9b7edc728542093039ed157ee4bc17bda81ae50cb3000ca18c2a752fed5 [INFO] running `"docker" "start" "-a" "8637b9b7edc728542093039ed157ee4bc17bda81ae50cb3000ca18c2a752fed5"` [INFO] [stderr] Compiling libc v0.2.41 [INFO] [stderr] Compiling spin v0.4.8 [INFO] [stderr] Compiling pyo3cls v0.2.7 [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/spin-0.4.8/src/lib.rs:6:30 [INFO] [stderr] | [INFO] [stderr] 6 | #![cfg_attr(feature = "asm", feature(asm))] [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/spin-0.4.8/src/lib.rs:7:42 [INFO] [stderr] | [INFO] [stderr] 7 | #![cfg_attr(feature = "core_intrinsics", feature(core_intrinsics))] [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/spin-0.4.8/src/lib.rs:8:35 [INFO] [stderr] | [INFO] [stderr] 8 | #![cfg_attr(feature = "const_fn", feature(const_fn, const_unsafe_cell_new, const_atomic_usize_new))] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to 3 previous errors [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: Could not compile `spin`. [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/pyo3cls-0.2.7/src/lib.rs:4:1 [INFO] [stderr] | [INFO] [stderr] 4 | #![feature(proc_macro)] [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 `pyo3cls`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "8637b9b7edc728542093039ed157ee4bc17bda81ae50cb3000ca18c2a752fed5"` [INFO] running `"docker" "rm" "-f" "8637b9b7edc728542093039ed157ee4bc17bda81ae50cb3000ca18c2a752fed5"` [INFO] [stdout] 8637b9b7edc728542093039ed157ee4bc17bda81ae50cb3000ca18c2a752fed5