[INFO] updating cached repository plietar/pony-playpen
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/plietar/pony-playpen
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/plietar/pony-playpen" "work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/plietar/pony-playpen"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/plietar/pony-playpen'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/plietar/pony-playpen" "work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/plietar/pony-playpen"`
[INFO] [stderr] Cloning into 'work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/plietar/pony-playpen'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 50a31c879d9db1a35abef2ae61be0b9172589e3d
[INFO] sha for GitHub repo plietar/pony-playpen: 50a31c879d9db1a35abef2ae61be0b9172589e3d
[INFO] validating manifest of plietar/pony-playpen on toolchain master#5f9c0448dde167128d668da4555879f64e56af1d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of plietar/pony-playpen on toolchain try#8ec8125bea94852768b56958f05da47666c21ab0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing plietar/pony-playpen
[INFO] finished frobbing plietar/pony-playpen
[INFO] frobbed toml for plietar/pony-playpen written to work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/plietar/pony-playpen/Cargo.toml
[INFO] started frobbing plietar/pony-playpen
[INFO] finished frobbing plietar/pony-playpen
[INFO] frobbed toml for plietar/pony-playpen written to work/ex/pr-62133/sources/try#8ec8125bea94852768b56958f05da47666c21ab0/gh/plietar/pony-playpen/Cargo.toml
[INFO] crate plietar/pony-playpen already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+8ec8125bea94852768b56958f05da47666c21ab0-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking plietar/pony-playpen against master#5f9c0448dde167128d668da4555879f64e56af1d for pr-62133
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62133/worker-4/master#5f9c0448dde167128d668da4555879f64e56af1d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62133/sources/master#5f9c0448dde167128d668da4555879f64e56af1d/gh/plietar/pony-playpen:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+5f9c0448dde167128d668da4555879f64e56af1d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1ba4f35b64096942448b7be78b04495c338302f7ee076b3e2f22f53d557b82ef
[INFO] running `"docker" "start" "-a" "1ba4f35b64096942448b7be78b04495c338302f7ee076b3e2f22f53d557b82ef"`
[INFO] [stderr]     Checking inotify-sys v0.1.3
[INFO] [stderr]     Checking filetime v0.2.4
[INFO] [stderr]     Checking isatty v0.1.9
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]    Compiling ring v0.13.5
[INFO] [stderr]    Compiling hyper v0.10.15
[INFO] [stderr]     Checking cookie v0.11.0
[INFO] [stderr]     Checking mio-extras v2.0.5
[INFO] [stderr]     Checking error-chain v0.12.0
[INFO] [stderr]     Checking h2 v0.1.14
[INFO] [stderr]     Checking hyperx v0.13.1
[INFO] [stderr]     Checking env_logger v0.6.0
[INFO] [stderr]     Checking tokio-reactor v0.1.7
[INFO] [stderr]     Checking tokio-threadpool v0.1.9
[INFO] [stderr]     Checking tokio-uds v0.2.4
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking inotify v0.6.1
[INFO] [stderr]     Checking tokio-fs v0.1.4
[INFO] [stderr]     Checking notify v4.0.6
[INFO] [stderr]     Checking tokio v0.1.13
[INFO] [stderr]     Checking rocket_http v0.4.0
[INFO] [stderr]     Checking hyper v0.12.17
[INFO] [stderr]     Checking hyper-tls v0.3.1
[INFO] [stderr]     Checking hubcaps v0.5.0
[INFO] [stderr]    Compiling rocket_codegen v0.4.0
[INFO] [stderr]     Checking rocket v0.4.0
[INFO] [stderr]     Checking rocket_contrib v0.4.0
[INFO] [stderr]     Checking pony-playground v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/docker.rs:88:45
[INFO] [stderr]    |
[INFO] [stderr] 88 | fn append(into: &Mutex<Vec<u8>>, from: &mut Read) {
[INFO] [stderr]    |                                             ^^^^ help: use `dyn`: `dyn Read`
[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/docker.rs:88:45
[INFO] [stderr]    |
[INFO] [stderr] 88 | fn append(into: &Mutex<Vec<u8>>, from: &mut Read) {
[INFO] [stderr]    |                                             ^^^^ help: use `dyn`: `dyn Read`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(bare_trait_objects)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 59.53s
[INFO] running `"docker" "inspect" "1ba4f35b64096942448b7be78b04495c338302f7ee076b3e2f22f53d557b82ef"`
[INFO] running `"docker" "rm" "-f" "1ba4f35b64096942448b7be78b04495c338302f7ee076b3e2f22f53d557b82ef"`
[INFO] [stdout] 1ba4f35b64096942448b7be78b04495c338302f7ee076b3e2f22f53d557b82ef