[INFO] updating cached repository https://github.com/cstorey/mio-rules-example
[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] b49009b7d73463a927191b208b617e23155dee4d
[INFO] checking cstorey/mio-rules-example against master#2da942f32802c8233a09744024dfbc34431adf65 for pr-66963
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcstorey%2Fmio-rules-example" "/workspace/builds/worker-3/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cstorey/mio-rules-example on toolchain 2da942f32802c8233a09744024dfbc34431adf65
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2da942f32802c8233a09744024dfbc34431adf65" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/cstorey/mio-rules-example
[INFO] finished tweaking git repo https://github.com/cstorey/mio-rules-example
[INFO] tweaked toml for git repo https://github.com/cstorey/mio-rules-example written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/cstorey/mio-rules-example already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2da942f32802c8233a09744024dfbc34431adf65" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+2da942f32802c8233a09744024dfbc34431adf65" "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] 8afcd0f8630294fb136c0decc713ee60d68da735b37a6ce3a46bf00bb3429ee5
[INFO] running `"docker" "start" "-a" "8afcd0f8630294fb136c0decc713ee60d68da735b37a6ce3a46bf00bb3429ee5"`
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking regex v1.0.5
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking michat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:38:25
[INFO] [stderr]    |
[INFO] [stderr] 38 |         to_parent: &mut FnMut(MiChatCommand),
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(MiChatCommand)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:158:25
[INFO] [stderr]     |
[INFO] [stderr] 158 |         to_parent: &mut FnMut(MiChatCommand),
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(MiChatCommand)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:195:50
[INFO] [stderr]     |
[INFO] [stderr] 195 |     fn process_buffer(&mut self, to_parent: &mut FnMut(MiChatCommand)) {
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(MiChatCommand)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:336:25
[INFO] [stderr]     |
[INFO] [stderr] 336 |         to_parent: &mut FnMut(MiChatCommand),
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(MiChatCommand)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:358:19
[INFO] [stderr]     |
[INFO] [stderr] 358 |     type Target = RuleHandler;
[INFO] [stderr]     |                   ^^^^^^^^^^^ help: use `dyn`: `dyn RuleHandler`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:38:25
[INFO] [stderr]    |
[INFO] [stderr] 38 |         to_parent: &mut FnMut(MiChatCommand),
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(MiChatCommand)`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:158:25
[INFO] [stderr]     |
[INFO] [stderr] 158 |         to_parent: &mut FnMut(MiChatCommand),
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(MiChatCommand)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:195:50
[INFO] [stderr]     |
[INFO] [stderr] 195 |     fn process_buffer(&mut self, to_parent: &mut FnMut(MiChatCommand)) {
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(MiChatCommand)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:336:25
[INFO] [stderr]     |
[INFO] [stderr] 336 |         to_parent: &mut FnMut(MiChatCommand),
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(MiChatCommand)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:358:19
[INFO] [stderr]     |
[INFO] [stderr] 358 |     type Target = RuleHandler;
[INFO] [stderr]     |                   ^^^^^^^^^^^ help: use `dyn`: `dyn RuleHandler`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.74s
[INFO] running `"docker" "inspect" "8afcd0f8630294fb136c0decc713ee60d68da735b37a6ce3a46bf00bb3429ee5"`
[INFO] running `"docker" "rm" "-f" "8afcd0f8630294fb136c0decc713ee60d68da735b37a6ce3a46bf00bb3429ee5"`
[INFO] [stdout] 8afcd0f8630294fb136c0decc713ee60d68da735b37a6ce3a46bf00bb3429ee5