[INFO] fetching crate audio 0.2.0-alpha.3...
[INFO] checking audio-0.2.0-alpha.3 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate audio 0.2.0-alpha.3 into /workspace/builds/worker-18/source
[INFO] validating manifest of crates.io crate audio 0.2.0-alpha.3 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate audio 0.2.0-alpha.3
[INFO] finished tweaking crates.io crate audio 0.2.0-alpha.3
[INFO] tweaked toml for crates.io crate audio 0.2.0-alpha.3 written to /workspace/builds/worker-18/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "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" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "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-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 497cc0f94c3abd10f52e02f5fe718a588fc8b8e63bd544adacfce46028202bbc
[INFO] running `Command { std: "docker" "start" "-a" "497cc0f94c3abd10f52e02f5fe718a588fc8b8e63bd544adacfce46028202bbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "497cc0f94c3abd10f52e02f5fe718a588fc8b8e63bd544adacfce46028202bbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "497cc0f94c3abd10f52e02f5fe718a588fc8b8e63bd544adacfce46028202bbc", kill_on_drop: false }`
[INFO] [stdout] 497cc0f94c3abd10f52e02f5fe718a588fc8b8e63bd544adacfce46028202bbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90af753eeff04d832dc3d26c8c6ccc31aebc66b7491a02185146c23bc304cb23
[INFO] running `Command { std: "docker" "start" "-a" "90af753eeff04d832dc3d26c8c6ccc31aebc66b7491a02185146c23bc304cb23", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]     Checking audio-core v0.2.0-alpha.3
[INFO] [stderr]     Checking bittle v0.1.1
[INFO] [stderr]     Checking audio v0.2.0-alpha.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/macros.rs:41:69
[INFO] [stdout]     |
[INFO] [stdout] 41  |         $crate::Dynamic::from_array([[$sample; $frames]; $channels]);
[INFO] [stdout]     |                                                                     ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/tests/dynamic.rs:160:13
[INFO] [stdout]     |
[INFO] [stdout] 160 |     let _ = crate::dynamic![[0.0; 1024]; 2];
[INFO] [stdout]     |             ------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `crate::dynamic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]    --> src/macros.rs:41:69
[INFO] [stdout]     |
[INFO] [stdout] 41  |         $crate::Dynamic::from_array([[$sample; $frames]; $channels]);
[INFO] [stdout]     |                                                                     ^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/tests/sequential.rs:165:13
[INFO] [stdout]     |
[INFO] [stdout] 165 |     let _ = crate::dynamic![[0.0; 128]; 2];
[INFO] [stdout]     |             ------------------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]     = note: this warning originates in the macro `crate::dynamic` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.46s
[INFO] running `Command { std: "docker" "inspect" "90af753eeff04d832dc3d26c8c6ccc31aebc66b7491a02185146c23bc304cb23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90af753eeff04d832dc3d26c8c6ccc31aebc66b7491a02185146c23bc304cb23", kill_on_drop: false }`
[INFO] [stdout] 90af753eeff04d832dc3d26c8c6ccc31aebc66b7491a02185146c23bc304cb23