[INFO] updating cached repository https://github.com/mre/rfcs
[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] 922a047c782e27c4ce5606a3b74c5e686091a77d
[INFO] checking mre/rfcs against master#b61e69433951e31f7bd746e22f516a48ad41623b for prs-64470-and-65389
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmre%2Frfcs" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mre/rfcs on toolchain b61e69433951e31f7bd746e22f516a48ad41623b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/mre/rfcs
[INFO] finished tweaking git repo https://github.com/mre/rfcs
[INFO] tweaked toml for git repo https://github.com/mre/rfcs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/mre/rfcs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+b61e69433951e31f7bd746e22f516a48ad41623b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+b61e69433951e31f7bd746e22f516a48ad41623b" "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] 82eb8e039153c15f04a9a746f8b309af3b830909291aff748fcf143657e51119
[INFO] running `"docker" "start" "-a" "82eb8e039153c15f04a9a746f8b309af3b830909291aff748fcf143657e51119"`
[INFO] [stderr]    Compiling rand v0.6.3
[INFO] [stderr]     Checking rand_os v0.1.0
[INFO] [stderr]     Checking time v0.1.41
[INFO] [stderr]     Checking tokio-io v0.1.10
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]    Compiling serde_derive v1.0.84
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking env_logger v0.6.0
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking hyperx v0.13.2
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking h2 v0.1.14
[INFO] [stderr]     Checking tokio-reactor v0.1.7
[INFO] [stderr]     Checking tokio-threadpool v0.1.9
[INFO] [stderr]     Checking failure v0.1.5
[INFO] [stderr]     Checking pretty_env_logger v0.3.0
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking tokio-uds v0.2.4
[INFO] [stderr]     Checking tokio-fs v0.1.4
[INFO] [stderr]     Checking tokio v0.1.13
[INFO] [stderr]     Checking hyper v0.12.19
[INFO] [stderr]     Checking hyper-tls v0.3.1
[INFO] [stderr]     Checking hubcaps v0.5.0
[INFO] [stderr]     Checking rfcs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/github.rs:20:26
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub type Stream<T> = Box<StdStream<Item = T, Error = hubcaps::errors::Error> + Send>;
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn StdStream<Item = T, Error = hubcaps::errors::Error> + Send`
[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/github.rs:20:26
[INFO] [stderr]    |
[INFO] [stderr] 20 | pub type Stream<T> = Box<StdStream<Item = T, Error = hubcaps::errors::Error> + Send>;
[INFO] [stderr]    |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn StdStream<Item = T, Error = hubcaps::errors::Error> + Send`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 18s
[INFO] running `"docker" "inspect" "82eb8e039153c15f04a9a746f8b309af3b830909291aff748fcf143657e51119"`
[INFO] running `"docker" "rm" "-f" "82eb8e039153c15f04a9a746f8b309af3b830909291aff748fcf143657e51119"`
[INFO] [stdout] 82eb8e039153c15f04a9a746f8b309af3b830909291aff748fcf143657e51119