[INFO] fetching crate expiring_ref 0.9.2...
[INFO] testing expiring_ref-0.9.2 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate expiring_ref 0.9.2 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate expiring_ref 0.9.2
[INFO] finished tweaking crates.io crate expiring_ref 0.9.2
[INFO] tweaked toml for crates.io crate expiring_ref 0.9.2 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate expiring_ref 0.9.2 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate expiring_ref 0.9.2 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] ee525c507cae43a27ac30069f3b6c904067b25fc4584fb5a24387034145637d1
[INFO] running `Command { std: "docker" "start" "ee525c507cae43a27ac30069f3b6c904067b25fc4584fb5a24387034145637d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee525c507cae43a27ac30069f3b6c904067b25fc4584fb5a24387034145637d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ee525c507cae43a27ac30069f3b6c904067b25fc4584fb5a24387034145637d1" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee525c507cae43a27ac30069f3b6c904067b25fc4584fb5a24387034145637d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ee525c507cae43a27ac30069f3b6c904067b25fc4584fb5a24387034145637d1" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling expiring_ref v0.9.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(allocator_api)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `field_projections` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]   --> src/lib.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 32 | #![feature(field_projections)]
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #145383 <https://github.com/rust-lang/rust/issues/145383> for more information
[INFO] [stdout]    = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pastey::paste`
[INFO] [stdout]  --> src/macros.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use pastey::paste;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AddAssign`
[INFO] [stdout]   --> src/lib.rs:50:17
[INFO] [stdout]    |
[INFO] [stdout] 50 | use core::ops::{AddAssign, CoerceUnsized, Deref, DerefMut, DerefPure};
[INFO] [stdout]    |                 ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `allocator_api` has been partially stabilized since 1.100.0 and is succeeded by the feature `allocator_ext`
[INFO] [stdout]  --> src/lib.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(allocator_api)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] help: if you are using features which are still unstable, change to using `allocator_ext`
[INFO] [stdout]   |
[INFO] [stdout] 4 - #![feature(allocator_api)]
[INFO] [stdout] 4 + #![feature(allocator_ext)]
[INFO] [stdout]   |
[INFO] [stdout] help: if you are using features which are now stable, remove this line
[INFO] [stdout]   |
[INFO] [stdout] 4 - #![feature(allocator_api)]
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `expiring_ref` (lib) due to 1 previous error; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "ee525c507cae43a27ac30069f3b6c904067b25fc4584fb5a24387034145637d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee525c507cae43a27ac30069f3b6c904067b25fc4584fb5a24387034145637d1", kill_on_drop: false }`
[INFO] [stdout] ee525c507cae43a27ac30069f3b6c904067b25fc4584fb5a24387034145637d1
