[INFO] updating cached repository https://github.com/mlsteele/bittles [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 68441273c2e5aaa5e7e19d35c2b8fdeee0ac92af [INFO] checking mlsteele/bittles against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmlsteele%2Fbittles" "/workspace/builds/worker-9/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mlsteele/bittles on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b [INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/mlsteele/bittles [INFO] finished tweaking git repo https://github.com/mlsteele/bittles [INFO] tweaked toml for git repo https://github.com/mlsteele/bittles written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate git repo https://github.com/mlsteele/bittles already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 11e88bc6469f59af21cf0ef8b609af30f0bfd251da4c809ba419e24f8cfe5a76 [INFO] running `"docker" "start" "-a" "11e88bc6469f59af21cf0ef8b609af30f0bfd251da4c809ba419e24f8cfe5a76"` [INFO] [stderr] Checking slog v2.0.5 [INFO] [stderr] Checking futures v0.1.13 [INFO] [stderr] Checking untrusted v0.3.2 [INFO] [stderr] Checking iovec v0.1.0 [INFO] [stderr] Checking isatty v0.1.3 [INFO] [stderr] Compiling hyper v0.10.8 [INFO] [stderr] Checking serde_cbor v0.5.2 [INFO] [stderr] Compiling deque v0.3.1 [INFO] [stderr] Checking backtrace v0.3.0 [INFO] [stderr] Checking chrono v0.3.1 [INFO] [stderr] Checking url v1.4.0 [INFO] [stderr] Checking docopt v0.7.0 [INFO] [stderr] Compiling rayon-core v1.0.0 [INFO] [stderr] Checking bytes v0.4.3 [INFO] [stderr] Checking mio v0.6.7 [INFO] [stderr] Checking error-chain v0.9.0 [INFO] [stderr] Checking error-chain v0.10.0 [INFO] [stderr] error[E0446]: private type `NeverStruct` in public interface [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-2.0.5/src/lib.rs:1180:5 [INFO] [stderr] | [INFO] [stderr] 1180 | type Err = Never; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ can't leak private type [INFO] [stderr] ... [INFO] [stderr] 2868 | struct NeverStruct(()); [INFO] [stderr] | - `NeverStruct` declared as private [INFO] [stderr] [INFO] [stderr] error[E0446]: private type `NeverStruct` in public interface [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-2.0.5/src/lib.rs:1465:5 [INFO] [stderr] | [INFO] [stderr] 1465 | type Err = Never; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ can't leak private type [INFO] [stderr] ... [INFO] [stderr] 2868 | struct NeverStruct(()); [INFO] [stderr] | - `NeverStruct` declared as private [INFO] [stderr] [INFO] [stderr] error[E0446]: private type `NeverStruct` in public interface [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-2.0.5/src/lib.rs:1630:5 [INFO] [stderr] | [INFO] [stderr] 1630 | type Err = Never; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ can't leak private type [INFO] [stderr] ... [INFO] [stderr] 2868 | struct NeverStruct(()); [INFO] [stderr] | - `NeverStruct` declared as private [INFO] [stderr] [INFO] [stderr] error[E0446]: private type `NeverStruct` in public interface [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-2.0.5/src/lib.rs:1662:5 [INFO] [stderr] | [INFO] [stderr] 1662 | type Err = Never; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ can't leak private type [INFO] [stderr] ... [INFO] [stderr] 2868 | 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[E0713]: borrow may still be in use when destructor runs [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.4.0/src/form_urlencoded.rs:246:40 [INFO] [stderr] | [INFO] [stderr] 244 | impl<'a> Target for ::UrlQuery<'a> { [INFO] [stderr] | -- lifetime `'a` defined here [INFO] [stderr] 245 | fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization } [INFO] [stderr] 246 | fn finish(self) -> &'a mut ::Url { self.url } [INFO] [stderr] | ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait [INFO] [stderr] | | [INFO] [stderr] | returning this value requires that `*self.url` is borrowed for `'a` [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0713`. [INFO] [stderr] error: could not compile `url`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "11e88bc6469f59af21cf0ef8b609af30f0bfd251da4c809ba419e24f8cfe5a76"` [INFO] running `"docker" "rm" "-f" "11e88bc6469f59af21cf0ef8b609af30f0bfd251da4c809ba419e24f8cfe5a76"` [INFO] [stdout] 11e88bc6469f59af21cf0ef8b609af30f0bfd251da4c809ba419e24f8cfe5a76