[INFO] fetching crate jack 0.7.1...
[INFO] checking jack-0.7.1 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate jack 0.7.1 into /workspace/builds/worker-23/source
[INFO] validating manifest of crates.io crate jack 0.7.1 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jack 0.7.1
[INFO] finished tweaking crates.io crate jack 0.7.1
[INFO] tweaked toml for crates.io crate jack 0.7.1 written to /workspace/builds/worker-23/source/Cargo.toml
[INFO] crate crates.io crate jack 0.7.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c3cd6eb9e2d633a742fa44f2a7c14bc27b99c592b0b7bfd2c71cc0e698b0625b
[INFO] running `Command { std: "docker" "start" "-a" "c3cd6eb9e2d633a742fa44f2a7c14bc27b99c592b0b7bfd2c71cc0e698b0625b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c3cd6eb9e2d633a742fa44f2a7c14bc27b99c592b0b7bfd2c71cc0e698b0625b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3cd6eb9e2d633a742fa44f2a7c14bc27b99c592b0b7bfd2c71cc0e698b0625b", kill_on_drop: false }`
[INFO] [stdout] c3cd6eb9e2d633a742fa44f2a7c14bc27b99c592b0b7bfd2c71cc0e698b0625b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-23/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2357967d258dcb8ed9a12f4003e9941ab68fe751bb11a4d1ae037992127f12cc
[INFO] running `Command { std: "docker" "start" "-a" "2357967d258dcb8ed9a12f4003e9941ab68fe751bb11a4d1ae037992127f12cc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking libloading v0.6.7
[INFO] [stderr]    Compiling crossbeam-utils v0.8.4
[INFO] [stderr]     Checking jack-sys v0.2.2
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking jack v0.7.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: reference to packed field is unaligned
[INFO] [stdout]    --> src/transport.rs:393:41
[INFO] [stdout]     |
[INFO] [stdout] 393 |             .field("unique_1", unsafe { &self.0.unique_1 })
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unaligned_references)]` 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 #82523 <https://github.com/rust-lang/rust/issues/82523>
[INFO] [stdout]     = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: reference to packed field is unaligned
[INFO] [stdout]    --> src/transport.rs:394:38
[INFO] [stdout]     |
[INFO] [stdout] 394 |             .field("usecs", unsafe { &self.0.usecs })
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^
[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 #82523 <https://github.com/rust-lang/rust/issues/82523>
[INFO] [stdout]     = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: reference to packed field is unaligned
[INFO] [stdout]    --> src/transport.rs:395:38
[INFO] [stdout]     |
[INFO] [stdout] 395 |             .field("frame", unsafe { &self.0.frame })
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^
[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 #82523 <https://github.com/rust-lang/rust/issues/82523>
[INFO] [stdout]     = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: reference to packed field is unaligned
[INFO] [stdout]    --> src/transport.rs:396:43
[INFO] [stdout]     |
[INFO] [stdout] 396 |             .field("frame_rate", unsafe { &self.0.frame_rate })
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^
[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 #82523 <https://github.com/rust-lang/rust/issues/82523>
[INFO] [stdout]     = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/transport.rs:393:32
[INFO] [stdout]     |
[INFO] [stdout] 393 |             .field("unique_1", unsafe { &self.0.unique_1 })
[INFO] [stdout]     |                                ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/transport.rs:394:29
[INFO] [stdout]     |
[INFO] [stdout] 394 |             .field("usecs", unsafe { &self.0.usecs })
[INFO] [stdout]     |                             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/transport.rs:395:29
[INFO] [stdout]     |
[INFO] [stdout] 395 |             .field("frame", unsafe { &self.0.frame })
[INFO] [stdout]     |                             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/transport.rs:396:34
[INFO] [stdout]     |
[INFO] [stdout] 396 |             .field("frame_rate", unsafe { &self.0.frame_rate })
[INFO] [stdout]     |                                  ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: reference to packed field is unaligned
[INFO] [stdout]    --> src/transport.rs:393:41
[INFO] [stdout]     |
[INFO] [stdout] 393 |             .field("unique_1", unsafe { &self.0.unique_1 })
[INFO] [stdout]     |                                         ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unaligned_references)]` 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 #82523 <https://github.com/rust-lang/rust/issues/82523>
[INFO] [stdout]     = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: reference to packed field is unaligned
[INFO] [stdout]    --> src/transport.rs:394:38
[INFO] [stdout]     |
[INFO] [stdout] 394 |             .field("usecs", unsafe { &self.0.usecs })
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^
[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 #82523 <https://github.com/rust-lang/rust/issues/82523>
[INFO] [stdout]     = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: reference to packed field is unaligned
[INFO] [stdout]    --> src/transport.rs:395:38
[INFO] [stdout]     |
[INFO] [stdout] 395 |             .field("frame", unsafe { &self.0.frame })
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^
[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 #82523 <https://github.com/rust-lang/rust/issues/82523>
[INFO] [stdout]     = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: reference to packed field is unaligned
[INFO] [stdout]    --> src/transport.rs:396:43
[INFO] [stdout]     |
[INFO] [stdout] 396 |             .field("frame_rate", unsafe { &self.0.frame_rate })
[INFO] [stdout]     |                                           ^^^^^^^^^^^^^^^^^^
[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 #82523 <https://github.com/rust-lang/rust/issues/82523>
[INFO] [stdout]     = note: fields of packed structs are not properly aligned, and creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/transport.rs:393:32
[INFO] [stdout]     |
[INFO] [stdout] 393 |             .field("unique_1", unsafe { &self.0.unique_1 })
[INFO] [stdout]     |                                ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/transport.rs:394:29
[INFO] [stdout]     |
[INFO] [stdout] 394 |             .field("usecs", unsafe { &self.0.usecs })
[INFO] [stdout]     |                             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/transport.rs:395:29
[INFO] [stdout]     |
[INFO] [stdout] 395 |             .field("frame", unsafe { &self.0.frame })
[INFO] [stdout]     |                             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]    --> src/transport.rs:396:34
[INFO] [stdout]     |
[INFO] [stdout] 396 |             .field("frame_rate", unsafe { &self.0.frame_rate })
[INFO] [stdout]     |                                  ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.91s
[INFO] running `Command { std: "docker" "inspect" "2357967d258dcb8ed9a12f4003e9941ab68fe751bb11a4d1ae037992127f12cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2357967d258dcb8ed9a12f4003e9941ab68fe751bb11a4d1ae037992127f12cc", kill_on_drop: false }`
[INFO] [stdout] 2357967d258dcb8ed9a12f4003e9941ab68fe751bb11a4d1ae037992127f12cc