[INFO] updating cached repository daxpedda/test-syntax-cfg-attr [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/daxpedda/test-syntax-cfg-attr [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/daxpedda/test-syntax-cfg-attr" "work/ex/beta-1.38-1/sources/1.37.0/gh/daxpedda/test-syntax-cfg-attr"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/daxpedda/test-syntax-cfg-attr'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/daxpedda/test-syntax-cfg-attr" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/daxpedda/test-syntax-cfg-attr"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/daxpedda/test-syntax-cfg-attr'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 4705d1318c32ab12f672bfaeddce4ce0c3fac2ed [INFO] sha for GitHub repo daxpedda/test-syntax-cfg-attr: 4705d1318c32ab12f672bfaeddce4ce0c3fac2ed [INFO] validating manifest of daxpedda/test-syntax-cfg-attr 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 daxpedda/test-syntax-cfg-attr 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 daxpedda/test-syntax-cfg-attr [INFO] finished frobbing daxpedda/test-syntax-cfg-attr [INFO] frobbed toml for daxpedda/test-syntax-cfg-attr written to work/ex/beta-1.38-1/sources/1.37.0/gh/daxpedda/test-syntax-cfg-attr/Cargo.toml [INFO] started frobbing daxpedda/test-syntax-cfg-attr [INFO] finished frobbing daxpedda/test-syntax-cfg-attr [INFO] frobbed toml for daxpedda/test-syntax-cfg-attr written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/daxpedda/test-syntax-cfg-attr/Cargo.toml [INFO] crate daxpedda/test-syntax-cfg-attr 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] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing daxpedda/test-syntax-cfg-attr 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-1/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/daxpedda/test-syntax-cfg-attr:/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] dd66cee8a516609471312cc57082026a0de1281051f4f589f35ea1bf8d3ad655 [INFO] running `"docker" "start" "-a" "dd66cee8a516609471312cc57082026a0de1281051f4f589f35ea1bf8d3ad655"` [INFO] [stderr] Compiling proc-macro2 v0.4.28 [INFO] [stderr] Compiling rustc-rayon-core v0.1.2 [INFO] [stderr] Compiling syn v0.15.32 [INFO] [stderr] Compiling smallvec v0.6.9 [INFO] [stderr] Compiling rustc-rayon v0.1.2 [INFO] [stderr] Compiling rustc-ap-graphviz v450.0.0 [INFO] [stderr] Compiling rustc-ap-rustc_target v450.0.0 [INFO] [stderr] Compiling rustc-ap-syntax v450.0.0 [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/smallvec-0.6.9/lib.rs:33:32 [INFO] [stderr] | [INFO] [stderr] 33 | #![cfg_attr(feature = "union", feature(untagged_unions))] [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/smallvec-0.6.9/lib.rs:35:37 [INFO] [stderr] | [INFO] [stderr] 35 | #![cfg_attr(feature = "may_dangle", feature(dropck_eyepatch))] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Compiling ena v0.13.0 [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/rustc-ap-graphviz-450.0.0/lib.rs:279:1 [INFO] [stderr] | [INFO] [stderr] 279 | #![feature(rustc_private, nll)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] Compiling rustc-ap-rustc_cratesio_shim v450.0.0 [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 `rustc-ap-graphviz`. [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/rustc-ap-rustc_cratesio_shim-450.0.0/src/lib.rs:6:1 [INFO] [stderr] | [INFO] [stderr] 6 | #![feature(nll)] [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 `rustc-ap-rustc_cratesio_shim`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: aborting due to 2 previous errors [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: Could not compile `smallvec`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "dd66cee8a516609471312cc57082026a0de1281051f4f589f35ea1bf8d3ad655"` [INFO] running `"docker" "rm" "-f" "dd66cee8a516609471312cc57082026a0de1281051f4f589f35ea1bf8d3ad655"` [INFO] [stdout] dd66cee8a516609471312cc57082026a0de1281051f4f589f35ea1bf8d3ad655