[INFO] fetching crate waker-waiter 0.3.0...
[INFO] testing waker-waiter-0.3.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate waker-waiter 0.3.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate waker-waiter 0.3.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate waker-waiter 0.3.0
[INFO] tweaked toml for crates.io crate waker-waiter 0.3.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate waker-waiter 0.3.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate waker-waiter 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded errno v0.3.5
[INFO] [stderr]   Downloaded smallvec v1.11.1
[INFO] [stderr]   Downloaded linux-raw-sys v0.4.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 015c51a565a86d60c9a2f9a98c58c61f694377001f2b1e3c2b42fdb6b7eb78f4
[INFO] running `Command { std: "docker" "start" "-a" "015c51a565a86d60c9a2f9a98c58c61f694377001f2b1e3c2b42fdb6b7eb78f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "015c51a565a86d60c9a2f9a98c58c61f694377001f2b1e3c2b42fdb6b7eb78f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "015c51a565a86d60c9a2f9a98c58c61f694377001f2b1e3c2b42fdb6b7eb78f4", kill_on_drop: false }`
[INFO] [stdout] 015c51a565a86d60c9a2f9a98c58c61f694377001f2b1e3c2b42fdb6b7eb78f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a49aa38c26245d5771df09a543f4d8409bcce6a6e2a424dc8f184a89e13e36a9
[INFO] running `Command { std: "docker" "start" "-a" "a49aa38c26245d5771df09a543f4d8409bcce6a6e2a424dc8f184a89e13e36a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling waker-waiter v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:189:1
[INFO] [stdout]     |
[INFO] [stdout] 189 | #![feature(local_waker)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]    --> src/lib.rs:190:1
[INFO] [stdout]     |
[INFO] [stdout] 190 | #![feature(context_ext)]
[INFO] [stdout]     | ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:580:40
[INFO] [stdout]     |
[INFO] [stdout] 580 | unsafe impl DynWithStaticInterface for (dyn TopLevelPoller + '_) {
[INFO] [stdout]     |                                        ^                       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 580 - unsafe impl DynWithStaticInterface for (dyn TopLevelPoller + '_) {
[INFO] [stdout] 580 + unsafe impl DynWithStaticInterface for dyn TopLevelPoller + '_ {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0477]: the type `dyn TopLevelPoller` does not fulfill the required lifetime
[INFO] [stdout]    --> src/lib.rs:582:24
[INFO] [stdout]     |
[INFO] [stdout] 521 |         type Clamped<'a>: ?Sized
[INFO] [stdout]     |         ------------------------ definition of `Clamped` from trait
[INFO] [stdout] ...
[INFO] [stdout] 582 |     type Clamped<'a> = dyn TopLevelPoller + 'a;
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: type must outlive the lifetime `'a` as defined here
[INFO] [stdout]    --> src/lib.rs:582:18
[INFO] [stdout]     |
[INFO] [stdout] 582 |     type Clamped<'a> = dyn TopLevelPoller + 'a;
[INFO] [stdout]     |                  ^^
[INFO] [stdout] help: copy the `where` clause predicates from the trait
[INFO] [stdout]     |
[INFO] [stdout] 582 |     type Clamped<'a> = dyn TopLevelPoller + 'a where Self: 'a;
[INFO] [stdout]     |                                                ++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `waker-waiter` (lib) due to 3 previous errors; 1 warning emitted
[INFO] [stdout] Some errors have detailed explanations: E0477, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0477`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a49aa38c26245d5771df09a543f4d8409bcce6a6e2a424dc8f184a89e13e36a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a49aa38c26245d5771df09a543f4d8409bcce6a6e2a424dc8f184a89e13e36a9", kill_on_drop: false }`
[INFO] [stdout] a49aa38c26245d5771df09a543f4d8409bcce6a6e2a424dc8f184a89e13e36a9