[INFO] fetching crate ao_rs 0.1.5...
[INFO] testing ao_rs-0.1.5 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate ao_rs 0.1.5 into /workspace/builds/worker-78/source
[INFO] validating manifest of crates.io crate ao_rs 0.1.5 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ao_rs 0.1.5
[INFO] finished tweaking crates.io crate ao_rs 0.1.5
[INFO] tweaked toml for crates.io crate ao_rs 0.1.5 written to /workspace/builds/worker-78/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d88b755a0545ec003d1172a1ad5906dc2fff92701e905c8076df8cee12a62a6
[INFO] running `Command { std: "docker" "start" "-a" "4d88b755a0545ec003d1172a1ad5906dc2fff92701e905c8076df8cee12a62a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d88b755a0545ec003d1172a1ad5906dc2fff92701e905c8076df8cee12a62a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d88b755a0545ec003d1172a1ad5906dc2fff92701e905c8076df8cee12a62a6", kill_on_drop: false }`
[INFO] [stdout] 4d88b755a0545ec003d1172a1ad5906dc2fff92701e905c8076df8cee12a62a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6aa7dcba6a238a6757aae8bce612acba925ada4fb24082b9bd05394277c0fa8
[INFO] running `Command { std: "docker" "start" "-a" "b6aa7dcba6a238a6757aae8bce612acba925ada4fb24082b9bd05394277c0fa8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling ao_rs v0.1.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated type alias `libc::uint32_t`: Use u32 instead.
[INFO] [stdout]  --> src/ffi.rs:5:27
[INFO] [stdout]   |
[INFO] [stdout] 5 | use libc::{c_int, c_char, uint32_t};
[INFO] [stdout]   |                           ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated type alias `libc::uint32_t`: Use u32 instead.
[INFO] [stdout]   --> src/ffi.rs:42:31
[INFO] [stdout]    |
[INFO] [stdout] 42 |                    num_bytes: uint32_t)
[INFO] [stdout]    |                               ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `unique`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(unique)]
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ao_rs` due to 2 previous errors; 2 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "b6aa7dcba6a238a6757aae8bce612acba925ada4fb24082b9bd05394277c0fa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6aa7dcba6a238a6757aae8bce612acba925ada4fb24082b9bd05394277c0fa8", kill_on_drop: false }`
[INFO] [stdout] b6aa7dcba6a238a6757aae8bce612acba925ada4fb24082b9bd05394277c0fa8