[INFO] updating cached repository rustyhorde/twists [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/rustyhorde/twists [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/rustyhorde/twists" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/rustyhorde/twists"` [INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/rustyhorde/twists'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/rustyhorde/twists" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/rustyhorde/twists"` [INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/rustyhorde/twists'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 4490db4201265c28c9f05f469d0d010181f65b22 [INFO] sha for GitHub repo rustyhorde/twists: 4490db4201265c28c9f05f469d0d010181f65b22 [INFO] validating manifest of rustyhorde/twists on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of rustyhorde/twists on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing rustyhorde/twists [INFO] finished frobbing rustyhorde/twists [INFO] frobbed toml for rustyhorde/twists written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/rustyhorde/twists/Cargo.toml [INFO] started frobbing rustyhorde/twists [INFO] finished frobbing rustyhorde/twists [INFO] frobbed toml for rustyhorde/twists written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/rustyhorde/twists/Cargo.toml [INFO] crate rustyhorde/twists already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking rustyhorde/twists against master#452087b4bf18cece2d52d7cd8c9147195e5404bf for pr-63247 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-7/master#452087b4bf18cece2d52d7cd8c9147195e5404bf:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/rustyhorde/twists:/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=forbid" "-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" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 07d9cadba4e9766dfa5fb53b868ef546c23d86976e47a7b55f0f683b64890a43 [INFO] running `"docker" "start" "-a" "07d9cadba4e9766dfa5fb53b868ef546c23d86976e47a7b55f0f683b64890a43"` [INFO] [stderr] Compiling lazy_static v0.2.6 [INFO] [stderr] Checking slog v1.5.2 [INFO] [stderr] Checking untrusted v0.3.2 [INFO] [stderr] Checking slog v2.0.0-3.1 [INFO] [stderr] Checking iovec v0.1.0 [INFO] [stderr] Compiling num_cpus v1.3.0 [INFO] [stderr] Checking isatty v0.1.3 [INFO] [stderr] Checking net2 v0.2.27 [INFO] [stderr] Checking base64 v0.4.1 [INFO] [stderr] Checking tokio-service v0.1.0 [INFO] [stderr] error[E0277]: `*mut (dyn core::ops::Fn() + 'static)` cannot be shared between threads safely [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-1.5.2/src/ser.rs:228:6 [INFO] [stderr] | [INFO] [stderr] 228 | impl SyncSerialize for fmt::Arguments<'static> {} [INFO] [stderr] | ^^^^^^^^^^^^^ `*mut (dyn core::ops::Fn() + 'static)` cannot be shared between threads safely [INFO] [stderr] | [INFO] [stderr] = help: within `core::fmt::Arguments<'static>`, the trait `core::marker::Sync` is not implemented for `*mut (dyn core::ops::Fn() + 'static)` [INFO] [stderr] = note: required because it appears within the type `core::marker::PhantomData<*mut (dyn core::ops::Fn() + 'static)>` [INFO] [stderr] = note: required because it appears within the type `core::fmt::Void` [INFO] [stderr] = note: required because it appears within the type `&'static core::fmt::Void` [INFO] [stderr] = note: required because it appears within the type `core::fmt::ArgumentV1<'static>` [INFO] [stderr] = note: required because it appears within the type `[core::fmt::ArgumentV1<'static>]` [INFO] [stderr] = note: required because it appears within the type `&'static [core::fmt::ArgumentV1<'static>]` [INFO] [stderr] = note: required because it appears within the type `core::fmt::Arguments<'static>` [INFO] [stderr] [INFO] [stderr] Checking lz4-compress v0.1.0 [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0277`. [INFO] [stderr] error: Could not compile `slog`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error[E0446]: private type `NeverStruct` in public interface [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-2.0.0-3.1/src/lib.rs:988:5 [INFO] [stderr] | [INFO] [stderr] 988 | type Err = Never; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ can't leak private type [INFO] [stderr] ... [INFO] [stderr] 2650 | struct NeverStruct(()); [INFO] [stderr] | - `NeverStruct` declared as private [INFO] [stderr] [INFO] [stderr] error[E0446]: private type `NeverStruct` in public interface [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-2.0.0-3.1/src/lib.rs:1271:5 [INFO] [stderr] | [INFO] [stderr] 1271 | type Err = Never; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ can't leak private type [INFO] [stderr] ... [INFO] [stderr] 2650 | struct NeverStruct(()); [INFO] [stderr] | - `NeverStruct` declared as private [INFO] [stderr] [INFO] [stderr] error[E0446]: private type `NeverStruct` in public interface [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-2.0.0-3.1/src/lib.rs:1434:5 [INFO] [stderr] | [INFO] [stderr] 1434 | type Err = Never; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ can't leak private type [INFO] [stderr] ... [INFO] [stderr] 2650 | struct NeverStruct(()); [INFO] [stderr] | - `NeverStruct` declared as private [INFO] [stderr] [INFO] [stderr] error[E0446]: private type `NeverStruct` in public interface [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-2.0.0-3.1/src/lib.rs:1466:5 [INFO] [stderr] | [INFO] [stderr] 1466 | type Err = Never; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ can't leak private type [INFO] [stderr] ... [INFO] [stderr] 2650 | struct NeverStruct(()); [INFO] [stderr] | - `NeverStruct` declared as private [INFO] [stderr] [INFO] [stderr] error: aborting due to 4 previous errors [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0446`. [INFO] [stderr] error: Could not compile `slog`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "07d9cadba4e9766dfa5fb53b868ef546c23d86976e47a7b55f0f683b64890a43"` [INFO] running `"docker" "rm" "-f" "07d9cadba4e9766dfa5fb53b868ef546c23d86976e47a7b55f0f683b64890a43"` [INFO] [stdout] 07d9cadba4e9766dfa5fb53b868ef546c23d86976e47a7b55f0f683b64890a43