[INFO] fetching crate btrfs 1.2.2...
[INFO] extracting crate btrfs 1.2.2 into work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/btrfs/1.2.2
[INFO] extracting crate btrfs 1.2.2 into work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/btrfs/1.2.2
[INFO] validating manifest of btrfs-1.2.2 on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of btrfs-1.2.2 on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing btrfs-1.2.2
[INFO] finished frobbing btrfs-1.2.2
[INFO] frobbed toml for btrfs-1.2.2 written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/btrfs/1.2.2/Cargo.toml
[INFO] started frobbing btrfs-1.2.2
[INFO] finished frobbing btrfs-1.2.2
[INFO] frobbed toml for btrfs-1.2.2 written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/reg/btrfs/1.2.2/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking btrfs-1.2.2 against master#9f06855064ed06a50c496577b21ca50f92a2e67d for pr-61874
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-6/master#9f06855064ed06a50c496577b21ca50f92a2e67d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/reg/btrfs/1.2.2:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] eaaa546df6de4048f4bd39516966334616ea91e757c5eada1abe21e37bf7d0e3
[INFO] running `"docker" "start" "-a" "eaaa546df6de4048f4bd39516966334616ea91e757c5eada1abe21e37bf7d0e3"`
[INFO] [stderr]     Checking minilzo-sys v0.1.0
[INFO] [stderr]     Checking minilzo v0.2.0
[INFO] [stderr]     Checking btrfs v1.2.2 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | #[ macro_use ]
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:10:1
[INFO] [stderr]    |
[INFO] [stderr] 10 | #[ macro_use ]
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stderr]    --> src/diskformat/item/extent_data.rs:213:7
[INFO] [stderr]     |
[INFO] [stderr] 213 |                         self.data ().other_encoding)
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(safe_packed_borrows)] on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `lzo2a_decompress`
[INFO] [stderr]   --> src/compress/lzo.rs:25:2
[INFO] [stderr]    |
[INFO] [stderr] 25 |       fn lzo2a_decompress (
[INFO] [stderr]    |  _____^
[INFO] [stderr] 26 | |         src: * const u8,
[INFO] [stderr] 27 | |         src_len: libc::c_uint,
[INFO] [stderr] 28 | |         dst: * const u8,
[INFO] [stderr] 29 | |         dst_len: * mut libc::c_uint,
[INFO] [stderr] 30 | |         wrkmem: * const u8,
[INFO] [stderr] 31 | |     ) -> libc::c_int;
[INFO] [stderr]    | |_____________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stderr]    --> src/diskformat/item/extent_data.rs:213:7
[INFO] [stderr]     |
[INFO] [stderr] 213 |                         self.data ().other_encoding)
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(safe_packed_borrows)] on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stderr]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stderr] 
[INFO] [stderr] warning: foreign function is never used: `lzo2a_decompress`
[INFO] [stderr]   --> src/compress/lzo.rs:25:2
[INFO] [stderr]    |
[INFO] [stderr] 25 |       fn lzo2a_decompress (
[INFO] [stderr]    |  _____^
[INFO] [stderr] 26 | |         src: * const u8,
[INFO] [stderr] 27 | |         src_len: libc::c_uint,
[INFO] [stderr] 28 | |         dst: * const u8,
[INFO] [stderr] 29 | |         dst_len: * mut libc::c_uint,
[INFO] [stderr] 30 | |         wrkmem: * const u8,
[INFO] [stderr] 31 | |     ) -> libc::c_int;
[INFO] [stderr]    | |_____________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.01s
[INFO] running `"docker" "inspect" "eaaa546df6de4048f4bd39516966334616ea91e757c5eada1abe21e37bf7d0e3"`
[INFO] running `"docker" "rm" "-f" "eaaa546df6de4048f4bd39516966334616ea91e757c5eada1abe21e37bf7d0e3"`
[INFO] [stdout] eaaa546df6de4048f4bd39516966334616ea91e757c5eada1abe21e37bf7d0e3