[INFO] fetching crate revent 0.29.0...
[INFO] testing revent-0.29.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate revent 0.29.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate revent 0.29.0
[INFO] finished tweaking crates.io crate revent 0.29.0
[INFO] tweaked toml for crates.io crate revent 0.29.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate revent 0.29.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate revent 0.29.0 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.18
[INFO] [stderr]   Downloaded log v0.4.8
[INFO] [stderr]   Downloaded quickcheck_macros v0.9.1
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[INFO] [stderr]   Downloaded cast v0.2.3
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[INFO] [stderr]   Downloaded serde_json v1.0.53
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[INFO] [stderr]   Downloaded csv-core v0.1.10
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc26473287280aa09032b44048ae8b5dbf481c22cb61c92a27e1287ea1d2157c
[INFO] running `Command { std: "docker" "start" "-a" "cc26473287280aa09032b44048ae8b5dbf481c22cb61c92a27e1287ea1d2157c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc26473287280aa09032b44048ae8b5dbf481c22cb61c92a27e1287ea1d2157c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc26473287280aa09032b44048ae8b5dbf481c22cb61c92a27e1287ea1d2157c", kill_on_drop: false }`
[INFO] [stdout] cc26473287280aa09032b44048ae8b5dbf481c22cb61c92a27e1287ea1d2157c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c2705006abd1bded5fc66113320f6bc0f5cc5b2f1bce3cbe29193bb1664d13f
[INFO] running `Command { std: "docker" "start" "-a" "7c2705006abd1bded5fc66113320f6bc0f5cc5b2f1bce3cbe29193bb1664d13f", kill_on_drop: false }`
[INFO] [stderr]    Compiling isize-vec v0.1.1
[INFO] [stderr]    Compiling revent v0.29.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]   --> src/node.rs:48:19
[INFO] [stdout]    |
[INFO] [stdout] 48 |             size: mem::size_of::<T>(),
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 61 |     unused_qualifications
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 48 -             size: mem::size_of::<T>(),
[INFO] [stdout] 48 +             size: size_of::<T>(),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]   --> src/node.rs:63:19
[INFO] [stdout]    |
[INFO] [stdout] 63 |             size: mem::size_of::<T>(),
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 63 -             size: mem::size_of::<T>(),
[INFO] [stdout] 63 +             size: size_of::<T>(),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unnecessary qualification
[INFO] [stdout]    --> src/lib.rs:147:51
[INFO] [stdout]     |
[INFO] [stdout] 147 |         if last.1 != item as *mut () || last.2 != mem::size_of::<Self>() {
[INFO] [stdout]     |                                                   ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]     |
[INFO] [stdout] 147 -         if last.1 != item as *mut () || last.2 != mem::size_of::<Self>() {
[INFO] [stdout] 147 +         if last.1 != item as *mut () || last.2 != size_of::<Self>() {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `drain_filter`
[INFO] [stdout]   --> src/lib.rs:63:28
[INFO] [stdout]    |
[INFO] [stdout] 63 | #![feature(coerce_unsized, drain_filter, unsize)]
[INFO] [stdout]    |                            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the trait bound `(Cell<isize>, UnsafeCell<T>): Unsize<(Cell<isize>, UnsafeCell<U>)>` is not satisfied
[INFO] [stdout]   --> src/node.rs:25:1
[INFO] [stdout]    |
[INFO] [stdout] 25 | / impl<T, U> CoerceUnsized<Node<U>> for Node<T>
[INFO] [stdout] 26 | | where
[INFO] [stdout] 27 | |     T: Unsize<U> + ?Sized,
[INFO] [stdout] 28 | |     U: ?Sized,
[INFO] [stdout]    | |______________^ the trait `Unsize<(Cell<isize>, UnsafeCell<U>)>` is not implemented for `(Cell<isize>, UnsafeCell<T>)`
[INFO] [stdout]    |
[INFO] [stdout]    = note: all implementations of `Unsize` are provided automatically by the compiler, see <https://doc.rust-lang.org/stable/std/marker/trait.Unsize.html> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `revent` (lib) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "7c2705006abd1bded5fc66113320f6bc0f5cc5b2f1bce3cbe29193bb1664d13f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c2705006abd1bded5fc66113320f6bc0f5cc5b2f1bce3cbe29193bb1664d13f", kill_on_drop: false }`
[INFO] [stdout] 7c2705006abd1bded5fc66113320f6bc0f5cc5b2f1bce3cbe29193bb1664d13f
