[INFO] crate ctx 0.2.0 is already in cache
[INFO] building ctx-0.2.0 against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] extracting crate ctx 0.2.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate ctx 0.2.0 on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate ctx 0.2.0
[INFO] finished tweaking crates.io crate ctx 0.2.0
[INFO] tweaked toml for crates.io crate ctx 0.2.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4dea489e96106692496a916417e4562e73d92cd1685dd262022e3f5001845b9c
[INFO] running `"docker" "start" "-a" "4dea489e96106692496a916417e4562e73d92cd1685dd262022e3f5001845b9c"`
[INFO] [stderr]    Compiling futures v0.1.29
[INFO] [stderr]    Compiling slab v0.3.0
[INFO] [stderr]    Compiling tokio-timer v0.1.2
[INFO] [stderr]    Compiling ctx v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/with_value.rs:20:32
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn value(&self) -> Option<&Any> {
[INFO] [stderr]    |                                ^^^ help: use `dyn`: `dyn Any`
[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/with_value.rs:21:37
[INFO] [stderr]    |
[INFO] [stderr] 21 |         let val_any = &self.val as &Any;
[INFO] [stderr]    |                                     ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/with_cancel.rs:20:32
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn value(&self) -> Option<&Any> {
[INFO] [stderr]    |                                ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/with_cancel.rs:77:54
[INFO] [stderr]    |
[INFO] [stderr] 77 | pub fn with_cancel(parent: Context) -> (Context, Box<Fn() + Send>) {
[INFO] [stderr]    |                                                      ^^^^^^^^^^^ help: use `dyn`: `dyn Fn() + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/with_deadline.rs:18:32
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn value(&self) -> Option<&Any> {
[INFO] [stderr]    |                                ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/with_deadline.rs:43:43
[INFO] [stderr]    |
[INFO] [stderr] 43 |                          -> (Context, Box<Fn() + Send>) {
[INFO] [stderr]    |                                           ^^^^^^^^^^^ help: use `dyn`: `dyn Fn() + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/with_deadline.rs:69:74
[INFO] [stderr]    |
[INFO] [stderr] 69 | pub fn with_timeout(parent: Context, timeout: Duration) -> (Context, Box<Fn() + Send>) {
[INFO] [stderr]    |                                                                          ^^^^^^^^^^^ help: use `dyn`: `dyn Fn() + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:29:39
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub struct Context(pub Rc<RefCell<Box<InnerContext<Item = (), Error = ContextError>>>>);
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn InnerContext<Item = (), Error = ContextError>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:82:32
[INFO] [stderr]    |
[INFO] [stderr] 82 |     fn value(&self) -> Option<&Any> {
[INFO] [stderr]    |                                ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'futures::task::park': renamed to `current`
[INFO] [stderr]   --> src/with_cancel.rs:49:44
[INFO] [stderr]    |
[INFO] [stderr] 49 | ...                   *handle = Some(task::park())
[INFO] [stderr]    |                                      ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:100:44
[INFO] [stderr]     |
[INFO] [stderr] 100 |         write!(f, "ContextError: {}", self.description())
[INFO] [stderr]     |                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'futures::task::Task::is_current': intended to be removed, see docs for details
[INFO] [stderr]   --> src/with_cancel.rs:45:52
[INFO] [stderr]    |
[INFO] [stderr] 45 | ...                   Some(ref task) if task.is_current() => false,
[INFO] [stderr]    |                                              ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'futures::task::Task::unpark': renamed to `notify`
[INFO] [stderr]   --> src/with_cancel.rs:93:40
[INFO] [stderr]    |
[INFO] [stderr] 93 | ...                   task.unpark();
[INFO] [stderr]    |                            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 13 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.52s
[INFO] running `"docker" "inspect" "4dea489e96106692496a916417e4562e73d92cd1685dd262022e3f5001845b9c"`
[INFO] running `"docker" "rm" "-f" "4dea489e96106692496a916417e4562e73d92cd1685dd262022e3f5001845b9c"`
[INFO] [stdout] 4dea489e96106692496a916417e4562e73d92cd1685dd262022e3f5001845b9c
[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" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1b8a4b598236f8eb5bf267f1c9971df13fa98751f9b24165a04e78f7cd77b36d
[INFO] running `"docker" "start" "-a" "1b8a4b598236f8eb5bf267f1c9971df13fa98751f9b24165a04e78f7cd77b36d"`
[INFO] [stderr]    Compiling ctx v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/with_value.rs:20:32
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn value(&self) -> Option<&Any> {
[INFO] [stderr]    |                                ^^^ help: use `dyn`: `dyn Any`
[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/with_value.rs:21:37
[INFO] [stderr]    |
[INFO] [stderr] 21 |         let val_any = &self.val as &Any;
[INFO] [stderr]    |                                     ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/with_cancel.rs:20:32
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn value(&self) -> Option<&Any> {
[INFO] [stderr]    |                                ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/with_cancel.rs:77:54
[INFO] [stderr]    |
[INFO] [stderr] 77 | pub fn with_cancel(parent: Context) -> (Context, Box<Fn() + Send>) {
[INFO] [stderr]    |                                                      ^^^^^^^^^^^ help: use `dyn`: `dyn Fn() + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/with_deadline.rs:18:32
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn value(&self) -> Option<&Any> {
[INFO] [stderr]    |                                ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/with_deadline.rs:43:43
[INFO] [stderr]    |
[INFO] [stderr] 43 |                          -> (Context, Box<Fn() + Send>) {
[INFO] [stderr]    |                                           ^^^^^^^^^^^ help: use `dyn`: `dyn Fn() + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/with_deadline.rs:69:74
[INFO] [stderr]    |
[INFO] [stderr] 69 | pub fn with_timeout(parent: Context, timeout: Duration) -> (Context, Box<Fn() + Send>) {
[INFO] [stderr]    |                                                                          ^^^^^^^^^^^ help: use `dyn`: `dyn Fn() + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:29:39
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub struct Context(pub Rc<RefCell<Box<InnerContext<Item = (), Error = ContextError>>>>);
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn InnerContext<Item = (), Error = ContextError>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:82:32
[INFO] [stderr]    |
[INFO] [stderr] 82 |     fn value(&self) -> Option<&Any> {
[INFO] [stderr]    |                                ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'futures::task::park': renamed to `current`
[INFO] [stderr]   --> src/with_cancel.rs:49:44
[INFO] [stderr]    |
[INFO] [stderr] 49 | ...                   *handle = Some(task::park())
[INFO] [stderr]    |                                      ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:100:44
[INFO] [stderr]     |
[INFO] [stderr] 100 |         write!(f, "ContextError: {}", self.description())
[INFO] [stderr]     |                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'futures::task::Task::is_current': intended to be removed, see docs for details
[INFO] [stderr]   --> src/with_cancel.rs:45:52
[INFO] [stderr]    |
[INFO] [stderr] 45 | ...                   Some(ref task) if task.is_current() => false,
[INFO] [stderr]    |                                              ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'futures::task::Task::unpark': renamed to `notify`
[INFO] [stderr]   --> src/with_cancel.rs:93:40
[INFO] [stderr]    |
[INFO] [stderr] 93 | ...                   task.unpark();
[INFO] [stderr]    |                            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 13 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/with_value.rs:20:32
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn value(&self) -> Option<&Any> {
[INFO] [stderr]    |                                ^^^ help: use `dyn`: `dyn Any`
[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/with_value.rs:21:37
[INFO] [stderr]    |
[INFO] [stderr] 21 |         let val_any = &self.val as &Any;
[INFO] [stderr]    |                                     ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/with_cancel.rs:20:32
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn value(&self) -> Option<&Any> {
[INFO] [stderr]    |                                ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/with_cancel.rs:77:54
[INFO] [stderr]    |
[INFO] [stderr] 77 | pub fn with_cancel(parent: Context) -> (Context, Box<Fn() + Send>) {
[INFO] [stderr]    |                                                      ^^^^^^^^^^^ help: use `dyn`: `dyn Fn() + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/with_deadline.rs:18:32
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fn value(&self) -> Option<&Any> {
[INFO] [stderr]    |                                ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/with_deadline.rs:43:43
[INFO] [stderr]    |
[INFO] [stderr] 43 |                          -> (Context, Box<Fn() + Send>) {
[INFO] [stderr]    |                                           ^^^^^^^^^^^ help: use `dyn`: `dyn Fn() + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/with_deadline.rs:69:74
[INFO] [stderr]    |
[INFO] [stderr] 69 | pub fn with_timeout(parent: Context, timeout: Duration) -> (Context, Box<Fn() + Send>) {
[INFO] [stderr]    |                                                                          ^^^^^^^^^^^ help: use `dyn`: `dyn Fn() + Send`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:29:39
[INFO] [stderr]    |
[INFO] [stderr] 29 | pub struct Context(pub Rc<RefCell<Box<InnerContext<Item = (), Error = ContextError>>>>);
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn InnerContext<Item = (), Error = ContextError>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/lib.rs:82:32
[INFO] [stderr]    |
[INFO] [stderr] 82 |     fn value(&self) -> Option<&Any> {
[INFO] [stderr]    |                                ^^^ help: use `dyn`: `dyn Any`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'futures::task::park': renamed to `current`
[INFO] [stderr]   --> src/with_cancel.rs:49:44
[INFO] [stderr]    |
[INFO] [stderr] 49 | ...                   *handle = Some(task::park())
[INFO] [stderr]    |                                      ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/lib.rs:100:44
[INFO] [stderr]     |
[INFO] [stderr] 100 |         write!(f, "ContextError: {}", self.description())
[INFO] [stderr]     |                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'futures::task::Task::is_current': intended to be removed, see docs for details
[INFO] [stderr]   --> src/with_cancel.rs:45:52
[INFO] [stderr]    |
[INFO] [stderr] 45 | ...                   Some(ref task) if task.is_current() => false,
[INFO] [stderr]    |                                              ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'futures::task::Task::unpark': renamed to `notify`
[INFO] [stderr]   --> src/with_cancel.rs:93:40
[INFO] [stderr]    |
[INFO] [stderr] 93 | ...                   task.unpark();
[INFO] [stderr]    |                            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 13 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `"docker" "inspect" "1b8a4b598236f8eb5bf267f1c9971df13fa98751f9b24165a04e78f7cd77b36d"`
[INFO] running `"docker" "rm" "-f" "1b8a4b598236f8eb5bf267f1c9971df13fa98751f9b24165a04e78f7cd77b36d"`
[INFO] [stdout] 1b8a4b598236f8eb5bf267f1c9971df13fa98751f9b24165a04e78f7cd77b36d