[INFO] updating cached repository moratorium08/blog_os [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/moratorium08/blog_os [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/moratorium08/blog_os" "work/ex/beta-1.38-1/sources/1.37.0/gh/moratorium08/blog_os"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/moratorium08/blog_os'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/moratorium08/blog_os" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/moratorium08/blog_os"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/moratorium08/blog_os'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] b6c1a2b16997979079d8c258384c7c08a874a0a8 [INFO] sha for GitHub repo moratorium08/blog_os: b6c1a2b16997979079d8c258384c7c08a874a0a8 [INFO] validating manifest of moratorium08/blog_os 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 moratorium08/blog_os 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 moratorium08/blog_os [INFO] finished frobbing moratorium08/blog_os [INFO] frobbed toml for moratorium08/blog_os written to work/ex/beta-1.38-1/sources/1.37.0/gh/moratorium08/blog_os/Cargo.toml [INFO] started frobbing moratorium08/blog_os [INFO] finished frobbing moratorium08/blog_os [INFO] frobbed toml for moratorium08/blog_os written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/moratorium08/blog_os/Cargo.toml [INFO] crate moratorium08/blog_os 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] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing moratorium08/blog_os 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/moratorium08/blog_os:/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] 866c0ea771c720acc4dc2e095e6d1eaf402c2b875879f4d155af9fc5beef76a2 [INFO] running `"docker" "start" "-a" "866c0ea771c720acc4dc2e095e6d1eaf402c2b875879f4d155af9fc5beef76a2"` [INFO] [stderr] Compiling bitflags v1.0.3 [INFO] [stderr] Compiling ux v0.1.2 [INFO] [stderr] Compiling os_bootinfo v0.2.1 [INFO] [stderr] Compiling usize_conversions v0.2.0 [INFO] [stderr] Compiling bit_field v0.9.0 [INFO] [stderr] Compiling spin v0.4.8 [INFO] [stderr] Compiling volatile v0.2.4 [INFO] [stderr] Compiling lazy_static v1.1.0 [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/usize_conversions-0.2.0/src/lib.rs:6:1 [INFO] [stderr] | [INFO] [stderr] 6 | #![feature(i128_type)] [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 `usize_conversions`. [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/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: build failed [INFO] running `"docker" "inspect" "866c0ea771c720acc4dc2e095e6d1eaf402c2b875879f4d155af9fc5beef76a2"` [INFO] running `"docker" "rm" "-f" "866c0ea771c720acc4dc2e095e6d1eaf402c2b875879f4d155af9fc5beef76a2"` [INFO] [stdout] 866c0ea771c720acc4dc2e095e6d1eaf402c2b875879f4d155af9fc5beef76a2