[INFO] updating cached repository https://github.com/srufle/maze-book-rs [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] fb33121d25b45c94c8cebd62ad8f379f0cf1de61 [INFO] checking srufle/maze-book-rs against try#d27c6c6a469a28343396a8f3ac1c9d403aabda69 for pr-66037 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsrufle%2Fmaze-book-rs" "/workspace/builds/worker-11/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/srufle/maze-book-rs on toolchain d27c6c6a469a28343396a8f3ac1c9d403aabda69 [INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/srufle/maze-book-rs [INFO] finished tweaking git repo https://github.com/srufle/maze-book-rs [INFO] tweaked toml for git repo https://github.com/srufle/maze-book-rs written to /workspace/builds/worker-11/source/Cargo.toml [INFO] crate git repo https://github.com/srufle/maze-book-rs already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Updating crates.io index [INFO] [stderr] error: the lock file /workspace/builds/worker-11/source/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag. [INFO] the lockfile is outdated, regenerating it [INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+d27c6c6a469a28343396a8f3ac1c9d403aabda69" "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] 626fcd407b172a85179c7b51731046e6b399a36720825c237d1a296b143ca412 [INFO] running `"docker" "start" "-a" "626fcd407b172a85179c7b51731046e6b399a36720825c237d1a296b143ca412"` [INFO] [stderr] Compiling slog v2.5.2 [INFO] [stderr] Checking radix_fmt v0.1.1 [INFO] [stderr] Checking rusttype v0.8.2 [INFO] [stderr] Checking chrono v0.4.10 [INFO] [stderr] Checking term v0.6.1 [INFO] [stderr] Checking tiff v0.2.2 [INFO] [stderr] Checking num v0.2.1 [INFO] [stderr] Checking rusttype v0.7.9 [INFO] [stderr] Checking image v0.21.3 [INFO] [stderr] error[E0038]: the trait `MapErrFn` cannot be made into an object [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-2.5.2/src/lib.rs:1807:5 [INFO] [stderr] | [INFO] [stderr] 1807 | map_fn: Box>, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the trait `MapErrFn` cannot be made into an object [INFO] [stderr] [INFO] [stderr] error[E0038]: the trait `SendSyncRefUnwindSafeDrain` cannot be made into an object [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-2.5.2/src/lib.rs:1079:19 [INFO] [stderr] | [INFO] [stderr] 1079 | pub struct Logger>> [INFO] [stderr] | ^ the trait `SendSyncRefUnwindSafeDrain` cannot be made into an object [INFO] [stderr] [INFO] [stderr] error[E0038]: the trait `SendSyncRefUnwindSafeDrain` cannot be made into an object [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-2.5.2/src/lib.rs:1117:5 [INFO] [stderr] | [INFO] [stderr] 1117 | / pub fn root(drain: D, values: OwnedKV) -> Logger [INFO] [stderr] 1118 | | where [INFO] [stderr] 1119 | | D: 'static + SendSyncRefUnwindSafeDrain, [INFO] [stderr] 1120 | | T: SendSyncRefUnwindSafeKV + 'static, [INFO] [stderr] ... | [INFO] [stderr] 1126 | | } [INFO] [stderr] 1127 | | } [INFO] [stderr] | |_____^ the trait `SendSyncRefUnwindSafeDrain` cannot be made into an object [INFO] [stderr] [INFO] [stderr] error[E0038]: the trait `SendSyncRefUnwindSafeDrain` cannot be made into an object [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-2.5.2/src/lib.rs:1220:5 [INFO] [stderr] | [INFO] [stderr] 1220 | / pub fn into_erased( [INFO] [stderr] 1221 | | self, [INFO] [stderr] 1222 | | ) -> Logger>> [INFO] [stderr] 1223 | | where [INFO] [stderr] ... | [INFO] [stderr] 1230 | | } [INFO] [stderr] 1231 | | } [INFO] [stderr] | |_____^ the trait `SendSyncRefUnwindSafeDrain` cannot be made into an object [INFO] [stderr] [INFO] [stderr] error[E0038]: the trait `SendSyncRefUnwindSafeDrain` cannot be made into an object [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/slog-2.5.2/src/lib.rs:1236:5 [INFO] [stderr] | [INFO] [stderr] 1236 | / pub fn to_erased( [INFO] [stderr] 1237 | | &self, [INFO] [stderr] 1238 | | ) -> Logger>> [INFO] [stderr] 1239 | | where [INFO] [stderr] ... | [INFO] [stderr] 1242 | | self.clone().into_erased() [INFO] [stderr] 1243 | | } [INFO] [stderr] | |_____^ the trait `SendSyncRefUnwindSafeDrain` cannot be made into an object [INFO] [stderr] [INFO] [stderr] error: aborting due to 5 previous errors [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0038`. [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" "626fcd407b172a85179c7b51731046e6b399a36720825c237d1a296b143ca412"` [INFO] running `"docker" "rm" "-f" "626fcd407b172a85179c7b51731046e6b399a36720825c237d1a296b143ca412"` [INFO] [stdout] 626fcd407b172a85179c7b51731046e6b399a36720825c237d1a296b143ca412