[INFO] updating cached repository https://github.com/asonix/rust-worker-pool
[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] d464e0bf404bfb5a59323e13d9b41cfdda61c2f0
[INFO] checking asonix/rust-worker-pool against master#0cbcb17d3306d6e22eafc2c05ce885db97d0189c for pr-68766
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fasonix%2Frust-worker-pool" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/asonix/rust-worker-pool on toolchain 0cbcb17d3306d6e22eafc2c05ce885db97d0189c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/asonix/rust-worker-pool
[INFO] finished tweaking git repo https://github.com/asonix/rust-worker-pool
[INFO] tweaked toml for git repo https://github.com/asonix/rust-worker-pool written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/asonix/rust-worker-pool already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+0cbcb17d3306d6e22eafc2c05ce885db97d0189c" "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] 15bbcf68824be19125f205e2aaecb2214c627339b2d68986bc9e0b8eb5169189
[INFO] running `"docker" "start" "-a" "15bbcf68824be19125f205e2aaecb2214c627339b2d68986bc9e0b8eb5169189"`
[INFO] [stderr]     Checking splay_tree v0.2.8
[INFO] [stderr]     Checking nbchan v0.1.0
[INFO] [stderr]     Checking handy_async v0.2.12
[INFO] [stderr]     Checking serde_json v1.0.3
[INFO] [stderr]     Checking fibers v0.1.8
[INFO] [stderr]     Checking worker-pool v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:26:36
[INFO] [stderr]    |
[INFO] [stderr] 26 |     handlers: HashMap<&'a str, &'a Handler<T>>,
[INFO] [stderr]    |                                    ^^^^^^^^^^ help: use `dyn`: `dyn Handler<T>`
[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/lib.rs:46:51
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn handlers(self) -> HashMap<&'a str, &'a Handler<T>> {
[INFO] [stderr]    |                                                   ^^^^^^^^^^ help: use `dyn`: `dyn Handler<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:50:68
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub fn register_handler(&mut self, name: &'a str, handler: &'a Handler<T>) -> Result<(), ()> {
[INFO] [stderr]    |                                                                    ^^^^^^^^^^ help: use `dyn`: `dyn Handler<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:26:36
[INFO] [stderr]    |
[INFO] [stderr] 26 |     handlers: HashMap<&'a str, &'a Handler<T>>,
[INFO] [stderr]    |                                    ^^^^^^^^^^ help: use `dyn`: `dyn Handler<T>`
[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/lib.rs:46:51
[INFO] [stderr]    |
[INFO] [stderr] 46 |     pub fn handlers(self) -> HashMap<&'a str, &'a Handler<T>> {
[INFO] [stderr]    |                                                   ^^^^^^^^^^ help: use `dyn`: `dyn Handler<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:50:68
[INFO] [stderr]    |
[INFO] [stderr] 50 |     pub fn register_handler(&mut self, name: &'a str, handler: &'a Handler<T>) -> Result<(), ()> {
[INFO] [stderr]    |                                                                    ^^^^^^^^^^ help: use `dyn`: `dyn Handler<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/bin/server.rs:70:23
[INFO] [stderr]    |
[INFO] [stderr] 70 |     type Future = Box<Future<Item = Self::Response, Error = Self::Error>>;
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Self::Response, Error = Self::Error>`
[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/bin/server.rs:70:23
[INFO] [stderr]    |
[INFO] [stderr] 70 |     type Future = Box<Future<Item = Self::Response, Error = Self::Error>>;
[INFO] [stderr]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Future<Item = Self::Response, Error = Self::Error>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.98s
[INFO] running `"docker" "inspect" "15bbcf68824be19125f205e2aaecb2214c627339b2d68986bc9e0b8eb5169189"`
[INFO] running `"docker" "rm" "-f" "15bbcf68824be19125f205e2aaecb2214c627339b2d68986bc9e0b8eb5169189"`
[INFO] [stdout] 15bbcf68824be19125f205e2aaecb2214c627339b2d68986bc9e0b8eb5169189