[INFO] updating cached repository illegalprime/rust-ddp
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/illegalprime/rust-ddp
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/illegalprime/rust-ddp" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/illegalprime/rust-ddp"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/illegalprime/rust-ddp'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/illegalprime/rust-ddp" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/illegalprime/rust-ddp"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/illegalprime/rust-ddp'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4d73ed647b9d331a2819a825299525bfd4d7a47f
[INFO] sha for GitHub repo illegalprime/rust-ddp: 4d73ed647b9d331a2819a825299525bfd4d7a47f
[INFO] validating manifest of illegalprime/rust-ddp on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of illegalprime/rust-ddp on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing illegalprime/rust-ddp
[INFO] finished frobbing illegalprime/rust-ddp
[INFO] frobbed toml for illegalprime/rust-ddp written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/illegalprime/rust-ddp/Cargo.toml
[INFO] started frobbing illegalprime/rust-ddp
[INFO] finished frobbing illegalprime/rust-ddp
[INFO] frobbed toml for illegalprime/rust-ddp written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/illegalprime/rust-ddp/Cargo.toml
[INFO] crate illegalprime/rust-ddp already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking illegalprime/rust-ddp against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-3/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/illegalprime/rust-ddp:/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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] dc3870fb5619dfa06e75dd17750398ea8c990ac1adde6321c9b3b8d4509f01a5
[INFO] running `"docker" "start" "-a" "dc3870fb5619dfa06e75dd17750398ea8c990ac1adde6321c9b3b8d4509f01a5"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking serde_json v1.0.17
[INFO] [stderr]     Checking tokio-io v0.1.6
[INFO] [stderr]     Checking tokio-threadpool v0.1.3
[INFO] [stderr]     Checking url v1.7.0
[INFO] [stderr]    Compiling serde_derive v1.0.45
[INFO] [stderr]     Checking tokio-reactor v0.1.1
[INFO] [stderr]     Checking tokio-fs v0.1.0
[INFO] [stderr] warning[E0713]: borrow may still be in use when destructor runs
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/url-1.7.0/src/form_urlencoded.rs:261:40
[INFO] [stderr]     |
[INFO] [stderr] 259 | impl<'a> Target for ::UrlQuery<'a> {
[INFO] [stderr]     |      -- lifetime `'a` defined here
[INFO] [stderr] 260 |     fn as_mut_string(&mut self) -> &mut String { &mut self.url.serialization }
[INFO] [stderr] 261 |     fn finish(self) -> &'a mut ::Url { self.url }
[INFO] [stderr]     |                                        ^^^^^^^^ - here, drop of `self` needs exclusive access to `*self.url`, because the type `UrlQuery<'_>` implements the `Drop` trait
[INFO] [stderr]     |                                        |
[INFO] [stderr]     |                                        returning this value requires that `*self.url` is borrowed for `'a`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]     = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]     Checking hyper v0.10.13
[INFO] [stderr]     Checking tokio-tcp v0.1.0
[INFO] [stderr]     Checking tokio-udp v0.1.0
[INFO] [stderr]     Checking tokio v0.1.6
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking tokio-tls v0.1.4
[INFO] [stderr]     Checking websocket v0.20.2
[INFO] [stderr]     Checking ddp v0.0.5 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client/connection.rs:23:27
[INFO] [stderr]    |
[INFO] [stderr] 23 | type MethodCallback = Box<FnMut(Result<&Ejson, &Ejson>) + Send + 'static>;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Result<&Ejson, &Ejson>) + Send + 'static`
[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/client/connection.rs:58:57
[INFO] [stderr]    |
[INFO] [stderr] 58 |             let mut handlers: HashMap<&'static str, Box<Fn(&Core, &Value)>> = HashMap::new();
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Core, &Value)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/connection.rs:110:31
[INFO] [stderr]     |
[INFO] [stderr] 110 |                 callback: Box<FnMut(Result<&Ejson, &Ejson>) + Send + 'static>) {
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Result<&Ejson, &Ejson>) + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/connection.rs:297:27
[INFO] [stderr]     |
[INFO] [stderr] 297 |             callback: Box<FnMut(Result<&Ejson, &Ejson>) + Send + 'static>) {
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Result<&Ejson, &Ejson>) + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/connection.rs:313:50
[INFO] [stderr]     |
[INFO] [stderr] 313 |     remove_listeners: Arc<Mutex<HashMap<u32, Box<Fn(&str) + Send + 'static>>>>,
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&str) + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/connection.rs:314:50
[INFO] [stderr]     |
[INFO] [stderr] 314 |     insert_listeners: Arc<Mutex<HashMap<u32, Box<Fn(&str, Option<&Ejson>) + Send + 'static>>>>,
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&str, Option<&Ejson>) + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/connection.rs:315:50
[INFO] [stderr]     |
[INFO] [stderr] 315 |     change_listeners: Arc<Mutex<HashMap<u32, Box<Fn(&str, Option<&Ejson>, Option<&Ejson>) + Send + 'static>>>>,
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&str, Option<&Ejson>, Option<&Ejson>) + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/connection.rs:444:39
[INFO] [stderr]     |
[INFO] [stderr] 444 |     subs:     HashMap<String, Vec<Box<FnMut(Result<(), &Ejson>) + Send + 'static>>>,
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Result<(), &Ejson>) + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/connection.rs:512:19
[INFO] [stderr]     |
[INFO] [stderr] 512 | struct OnDrop(Arc<Fn() + Sync + Send>);
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client/mod.rs:74:16
[INFO] [stderr]    |
[INFO] [stderr] 74 |     Custom(Box<Fn(u32, u32) -> Option<u32>>),
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(u32, u32) -> Option<u32>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client/connection.rs:23:27
[INFO] [stderr]    |
[INFO] [stderr] 23 | type MethodCallback = Box<FnMut(Result<&Ejson, &Ejson>) + Send + 'static>;
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Result<&Ejson, &Ejson>) + Send + 'static`
[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/client/connection.rs:58:57
[INFO] [stderr]    |
[INFO] [stderr] 58 |             let mut handlers: HashMap<&'static str, Box<Fn(&Core, &Value)>> = HashMap::new();
[INFO] [stderr]    |                                                         ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Core, &Value)`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/connection.rs:110:31
[INFO] [stderr]     |
[INFO] [stderr] 110 |                 callback: Box<FnMut(Result<&Ejson, &Ejson>) + Send + 'static>) {
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Result<&Ejson, &Ejson>) + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/connection.rs:297:27
[INFO] [stderr]     |
[INFO] [stderr] 297 |             callback: Box<FnMut(Result<&Ejson, &Ejson>) + Send + 'static>) {
[INFO] [stderr]     |                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Result<&Ejson, &Ejson>) + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/connection.rs:313:50
[INFO] [stderr]     |
[INFO] [stderr] 313 |     remove_listeners: Arc<Mutex<HashMap<u32, Box<Fn(&str) + Send + 'static>>>>,
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&str) + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/connection.rs:314:50
[INFO] [stderr]     |
[INFO] [stderr] 314 |     insert_listeners: Arc<Mutex<HashMap<u32, Box<Fn(&str, Option<&Ejson>) + Send + 'static>>>>,
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&str, Option<&Ejson>) + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/connection.rs:315:50
[INFO] [stderr]     |
[INFO] [stderr] 315 |     change_listeners: Arc<Mutex<HashMap<u32, Box<Fn(&str, Option<&Ejson>, Option<&Ejson>) + Send + 'static>>>>,
[INFO] [stderr]     |                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&str, Option<&Ejson>, Option<&Ejson>) + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/connection.rs:444:39
[INFO] [stderr]     |
[INFO] [stderr] 444 |     subs:     HashMap<String, Vec<Box<FnMut(Result<(), &Ejson>) + Send + 'static>>>,
[INFO] [stderr]     |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnMut(Result<(), &Ejson>) + Send + 'static`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/client/connection.rs:512:19
[INFO] [stderr]     |
[INFO] [stderr] 512 | struct OnDrop(Arc<Fn() + Sync + Send>);
[INFO] [stderr]     |                   ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() + Sync + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/client/mod.rs:74:16
[INFO] [stderr]    |
[INFO] [stderr] 74 |     Custom(Box<Fn(u32, u32) -> Option<u32>>),
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(u32, u32) -> Option<u32>`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/client/connection.rs:490:25
[INFO] [stderr]     |
[INFO] [stderr] 490 |             if let Some(mut listeners) = self.subs.get_mut(id) {
[INFO] [stderr]     |                         ----^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/client/connection.rs:490:25
[INFO] [stderr]     |
[INFO] [stderr] 490 |             if let Some(mut listeners) = self.subs.get_mut(id) {
[INFO] [stderr]     |                         ----^^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.13s
[INFO] running `"docker" "inspect" "dc3870fb5619dfa06e75dd17750398ea8c990ac1adde6321c9b3b8d4509f01a5"`
[INFO] running `"docker" "rm" "-f" "dc3870fb5619dfa06e75dd17750398ea8c990ac1adde6321c9b3b8d4509f01a5"`
[INFO] [stdout] dc3870fb5619dfa06e75dd17750398ea8c990ac1adde6321c9b3b8d4509f01a5