[INFO] updating cached repository cheme/tunnel [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/cheme/tunnel [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/cheme/tunnel" "work/ex/beta-1.38-1/sources/1.37.0/gh/cheme/tunnel"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/cheme/tunnel'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/cheme/tunnel" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cheme/tunnel"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cheme/tunnel'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] c695e507295424520f56d62841574c321ccb8cea [INFO] sha for GitHub repo cheme/tunnel: c695e507295424520f56d62841574c321ccb8cea [INFO] validating manifest of cheme/tunnel 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 cheme/tunnel 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 cheme/tunnel [INFO] finished frobbing cheme/tunnel [INFO] frobbed toml for cheme/tunnel written to work/ex/beta-1.38-1/sources/1.37.0/gh/cheme/tunnel/Cargo.toml [INFO] started frobbing cheme/tunnel [INFO] finished frobbing cheme/tunnel [INFO] frobbed toml for cheme/tunnel written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/cheme/tunnel/Cargo.toml [INFO] crate cheme/tunnel 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 cheme/tunnel 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-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cheme/tunnel:/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] dbbfad31924a0e696fb2dc6cd391213426cf66122f59dcf53c81ce6de86ee6b5 [INFO] running `"docker" "start" "-a" "dbbfad31924a0e696fb2dc6cd391213426cf66122f59dcf53c81ce6de86ee6b5"` [INFO] [stderr] Compiling serde v1.0.33 [INFO] [stderr] Compiling readwrite-comp v0.0.1 (https://github.com/cheme/readwrite-comp.git#a7dd09c9) [INFO] [stderr] Compiling serde_derive_internals v0.21.0 [INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs [INFO] [stderr] --> /opt/crater/cargo-home/git/checkouts/readwrite-comp-98a72d5ffd3148ea/a7dd09c/readwrite-comp/src/lib.rs:369:9 [INFO] [stderr] | [INFO] [stderr] 353 | impl<'a, 'b, W : 'a + Write, EW : 'b + ExtWrite> CompW<'a,'b,W,EW> { [INFO] [stderr] | -- lifetime `'b` defined here [INFO] [stderr] ... [INFO] [stderr] 369 | Ok((self.1,self.2.clone())) [INFO] [stderr] | ----^^^^^^----------------- returning this value requires that `*self.1` is borrowed for `'b` [INFO] [stderr] 370 | } [INFO] [stderr] | - here, drop of `self` needs exclusive access to `*self.1`, because the type `CompW<'_, '_, W, EW>` implements the `Drop` trait [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs [INFO] [stderr] --> /opt/crater/cargo-home/git/checkouts/readwrite-comp-98a72d5ffd3148ea/a7dd09c/readwrite-comp/src/lib.rs:436:9 [INFO] [stderr] | [INFO] [stderr] 422 | impl<'a, 'b, R : 'a + Read, ER : 'b + ExtRead> CompR<'a,'b,R,ER> { [INFO] [stderr] | -- lifetime `'b` defined here [INFO] [stderr] ... [INFO] [stderr] 436 | Ok((self.1,self.2.clone())) [INFO] [stderr] | ----^^^^^^----------------- returning this value requires that `*self.1` is borrowed for `'b` [INFO] [stderr] 437 | } [INFO] [stderr] | - here, drop of `self` needs exclusive access to `*self.1`, because the type `CompR<'_, '_, R, ER>` implements the `Drop` trait [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] Compiling serde_derive v1.0.33 [INFO] [stderr] Compiling bincode v0.8.0 [INFO] [stderr] Compiling tunnel v0.0.1 (/opt/crater/workdir) [INFO] [stderr] warning: unused imports: `Deserialize`, `Deserializer`, `Serializer` [INFO] [stderr] --> src/lib.rs:11:3 [INFO] [stderr] | [INFO] [stderr] 11 | Deserialize, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] 12 | Serializer, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] 13 | Deserializer, [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Deserialize`, `Deserializer`, `Serialize`, `Serializer` [INFO] [stderr] --> src/info/error.rs:24:3 [INFO] [stderr] | [INFO] [stderr] 24 | Serialize, [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] 25 | Deserialize, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] 26 | Serializer, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] 27 | Deserializer, [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `serde::de::DeserializeOwned` [INFO] [stderr] --> src/info/error.rs:29:5 [INFO] [stderr] | [INFO] [stderr] 29 | use serde::de::DeserializeOwned; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Deserialize`, `Deserializer`, `Serializer` [INFO] [stderr] --> src/info/multi.rs:26:3 [INFO] [stderr] | [INFO] [stderr] 26 | Deserialize, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] 27 | Serializer, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] 28 | Deserializer, [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `TunnelReadProv` [INFO] [stderr] --> src/nope.rs:9:3 [INFO] [stderr] | [INFO] [stderr] 9 | TunnelReadProv, [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `BorrMutErr` [INFO] [stderr] --> src/full.rs:43:3 [INFO] [stderr] | [INFO] [stderr] 43 | BorrMutErr, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `v` [INFO] [stderr] --> src/full.rs:535:42 [INFO] [stderr] | [INFO] [stderr] 535 | MultipleReplyInfo::CachedRoute(ref v) => return Ok((true,false,None)), [INFO] [stderr] | ^ help: consider prefixing with an underscore: `_v` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_variables)] on by default [INFO] [stderr] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 21.32s [INFO] running `"docker" "inspect" "dbbfad31924a0e696fb2dc6cd391213426cf66122f59dcf53c81ce6de86ee6b5"` [INFO] running `"docker" "rm" "-f" "dbbfad31924a0e696fb2dc6cd391213426cf66122f59dcf53c81ce6de86ee6b5"` [INFO] [stdout] dbbfad31924a0e696fb2dc6cd391213426cf66122f59dcf53c81ce6de86ee6b5 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-2/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/cheme/tunnel:/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" "test" "--frozen" "--no-run"` [INFO] [stdout] 4316179153c4273b59e22712a8b3af8901f02e3e5bafb223ddfc336cac7c5c26 [INFO] running `"docker" "start" "-a" "4316179153c4273b59e22712a8b3af8901f02e3e5bafb223ddfc336cac7c5c26"` [INFO] [stderr] Compiling itoa v0.4.0 [INFO] [stderr] Compiling uuid v0.6.1 [INFO] [stderr] Compiling bit-vec v0.4.1 (https://github.com/cheme/bit-vec.git#084e672d) [INFO] [stderr] Compiling context v1.0.1 [INFO] [stderr] Compiling parking_lot_core v0.2.13 [INFO] [stderr] Compiling readwrite-comp-test v0.0.1 (https://github.com/cheme/readwrite-comp.git#a7dd09c9) [INFO] [stderr] Compiling sized_windows_lim v0.0.1 (https://github.com/cheme/readwrite-comp.git#a7dd09c9) [INFO] [stderr] Compiling serde_json v1.0.12 [INFO] [stderr] Compiling parking_lot v0.4.8 [INFO] [stderr] Compiling coroutine v0.8.0 [INFO] [stderr] error[E0432]: unresolved import `std::boxed::FnBox` [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/coroutine-0.8.0/src/asymmetric.rs:25:5 [INFO] [stderr] | [INFO] [stderr] 25 | use std::boxed::FnBox; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ no `FnBox` in `boxed` [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/coroutine-0.8.0/src/lib.rs:25:1 [INFO] [stderr] | [INFO] [stderr] 25 | #![feature(fnbox)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to 2 previous errors [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0432, E0554. [INFO] [stderr] For more information about an error, try `rustc --explain E0432`. [INFO] [stderr] error: Could not compile `coroutine`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "4316179153c4273b59e22712a8b3af8901f02e3e5bafb223ddfc336cac7c5c26"` [INFO] running `"docker" "rm" "-f" "4316179153c4273b59e22712a8b3af8901f02e3e5bafb223ddfc336cac7c5c26"` [INFO] [stdout] 4316179153c4273b59e22712a8b3af8901f02e3e5bafb223ddfc336cac7c5c26