[INFO] updating cached repository fuchsnj/actix_bug
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/fuchsnj/actix_bug
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/fuchsnj/actix_bug" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/fuchsnj/actix_bug"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/fuchsnj/actix_bug'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/fuchsnj/actix_bug" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/fuchsnj/actix_bug"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/fuchsnj/actix_bug'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 4543ce5f114fc4d6bb44e0390372f3ce48fe85a8
[INFO] sha for GitHub repo fuchsnj/actix_bug: 4543ce5f114fc4d6bb44e0390372f3ce48fe85a8
[INFO] validating manifest of fuchsnj/actix_bug 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 fuchsnj/actix_bug 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 fuchsnj/actix_bug
[INFO] finished frobbing fuchsnj/actix_bug
[INFO] frobbed toml for fuchsnj/actix_bug written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/fuchsnj/actix_bug/Cargo.toml
[INFO] started frobbing fuchsnj/actix_bug
[INFO] finished frobbing fuchsnj/actix_bug
[INFO] frobbed toml for fuchsnj/actix_bug written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/fuchsnj/actix_bug/Cargo.toml
[INFO] crate fuchsnj/actix_bug 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking fuchsnj/actix_bug against master#60960a260f7b5c695fd0717311d72ce62dd4eb43 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-4/master#60960a260f7b5c695fd0717311d72ce62dd4eb43:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/fuchsnj/actix_bug:/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" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2c723768f469cb1116e6ef95c588a0f7bc16366ccfbab80ce308b900eafa98f3
[INFO] running `"docker" "start" "-a" "2c723768f469cb1116e6ef95c588a0f7bc16366ccfbab80ce308b900eafa98f3"`
[INFO] [stderr]    Compiling semver v0.8.0
[INFO] [stderr]    Compiling serde_json v1.0.9
[INFO] [stderr]    Compiling actix_derive v0.1.1
[INFO] [stderr]    Compiling tempdir v0.3.5
[INFO] [stderr]    Compiling serde_derive_internals v0.19.0
[INFO] [stderr]    Compiling backtrace v0.3.5
[INFO] [stderr]     Checking mio-uds v0.6.4
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]     Checking tokio-signal v0.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.27
[INFO] [stderr]    Compiling cargo_metadata v0.3.3
[INFO] [stderr]    Compiling skeptic v0.13.2
[INFO] [stderr]    Compiling actix v0.4.3
[INFO] [stderr]     Checking actix_bug v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused imports: `Arbiter`, `SyncAddress`, `msgs`
[INFO] [stderr]  --> src/main.rs:3:13
[INFO] [stderr]   |
[INFO] [stderr] 3 | use actix::{msgs, Actor, Address, Arbiter, Context, System, Handler, ResponseType, ActorFuture, AsyncContext, SyncAddress};
[INFO] [stderr]   |             ^^^^                  ^^^^^^^                                                                     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Arbiter`, `SyncAddress`, `msgs`
[INFO] [stderr]  --> src/main.rs:3:13
[INFO] [stderr]   |
[INFO] [stderr] 3 | use actix::{msgs, Actor, Address, Arbiter, Context, System, Handler, ResponseType, ActorFuture, AsyncContext, SyncAddress};
[INFO] [stderr]   |             ^^^^                  ^^^^^^^                                                                     ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]   --> src/main.rs:49:6
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let addr: Address<_> = MyActor.start();
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_addr`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/main.rs:20:74
[INFO] [stderr]    |
[INFO] [stderr] 20 |             ctx.spawn(wrap_future(addr.upgrade()).and_then(move |sync_address, _, ctx| {
[INFO] [stderr]    |                                                                                   ^^^ help: consider prefixing with an underscore: `_ctx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `actor`
[INFO] [stderr]   --> src/main.rs:14:70
[INFO] [stderr]    |
[INFO] [stderr] 14 |         ctx.spawn(wrap_future(addr.upgrade()).and_then(move |sync_address, actor: &mut MyActor, ctx: &mut Context<MyActor>| {
[INFO] [stderr]    |                                                                            ^^^^^ help: consider prefixing with an underscore: `_actor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/main.rs:40:23
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn handle(&mut self, msg: Message, ctx: &mut Self::Context) -> () {
[INFO] [stderr]    |                          ^^^ help: consider prefixing with an underscore: `_msg`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/main.rs:40:37
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn handle(&mut self, msg: Message, ctx: &mut Self::Context) -> () {
[INFO] [stderr]    |                                        ^^^ help: consider prefixing with an underscore: `_ctx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `addr`
[INFO] [stderr]   --> src/main.rs:49:6
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let addr: Address<_> = MyActor.start();
[INFO] [stderr]    |         ^^^^ help: consider prefixing with an underscore: `_addr`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/main.rs:20:74
[INFO] [stderr]    |
[INFO] [stderr] 20 |             ctx.spawn(wrap_future(addr.upgrade()).and_then(move |sync_address, _, ctx| {
[INFO] [stderr]    |                                                                                   ^^^ help: consider prefixing with an underscore: `_ctx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `actor`
[INFO] [stderr]   --> src/main.rs:14:70
[INFO] [stderr]    |
[INFO] [stderr] 14 |         ctx.spawn(wrap_future(addr.upgrade()).and_then(move |sync_address, actor: &mut MyActor, ctx: &mut Context<MyActor>| {
[INFO] [stderr]    |                                                                            ^^^^^ help: consider prefixing with an underscore: `_actor`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg`
[INFO] [stderr]   --> src/main.rs:40:23
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn handle(&mut self, msg: Message, ctx: &mut Self::Context) -> () {
[INFO] [stderr]    |                          ^^^ help: consider prefixing with an underscore: `_msg`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ctx`
[INFO] [stderr]   --> src/main.rs:40:37
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn handle(&mut self, msg: Message, ctx: &mut Self::Context) -> () {
[INFO] [stderr]    |                                        ^^^ help: consider prefixing with an underscore: `_ctx`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.33s
[INFO] running `"docker" "inspect" "2c723768f469cb1116e6ef95c588a0f7bc16366ccfbab80ce308b900eafa98f3"`
[INFO] running `"docker" "rm" "-f" "2c723768f469cb1116e6ef95c588a0f7bc16366ccfbab80ce308b900eafa98f3"`
[INFO] [stdout] 2c723768f469cb1116e6ef95c588a0f7bc16366ccfbab80ce308b900eafa98f3