[INFO] updating cached repository https://github.com/triangle-rustaceans/tokio-hops
[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] 808f36192fab92f20d970facd4fc0215fb6ac4ee
[INFO] checking triangle-rustaceans/tokio-hops against master#30ca215b4e38b32aa7abdd635c5e2d56f5724494 for pr-66037
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftriangle-rustaceans%2Ftokio-hops" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/triangle-rustaceans/tokio-hops on toolchain 30ca215b4e38b32aa7abdd635c5e2d56f5724494
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/triangle-rustaceans/tokio-hops
[INFO] finished tweaking git repo https://github.com/triangle-rustaceans/tokio-hops
[INFO] tweaked toml for git repo https://github.com/triangle-rustaceans/tokio-hops written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/triangle-rustaceans/tokio-hops already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "+30ca215b4e38b32aa7abdd635c5e2d56f5724494" "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] f19dc99343abe1f9bf050590ac20eccd1f50d138372873588f14f0c32d96f2e9
[INFO] running `"docker" "start" "-a" "f19dc99343abe1f9bf050590ac20eccd1f50d138372873588f14f0c32d96f2e9"`
[INFO] [stderr]     Checking serde v1.0.50
[INFO] [stderr]    Compiling serde_derive v1.0.50
[INFO] [stderr]     Checking serde_json v1.0.17
[INFO] [stderr]     Checking hops v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/main.rs:121:29
[INFO] [stderr]     |
[INFO] [stderr] 121 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::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/main.rs:121:29
[INFO] [stderr]     |
[INFO] [stderr] 121 | fn main() -> Result<(), Box<std::error::Error>> {
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn std::error::Error`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.23s
[INFO] running `"docker" "inspect" "f19dc99343abe1f9bf050590ac20eccd1f50d138372873588f14f0c32d96f2e9"`
[INFO] running `"docker" "rm" "-f" "f19dc99343abe1f9bf050590ac20eccd1f50d138372873588f14f0c32d96f2e9"`
[INFO] [stdout] f19dc99343abe1f9bf050590ac20eccd1f50d138372873588f14f0c32d96f2e9