[INFO] fetching crate btrfs2 1.2.2...
[INFO] checking btrfs2-1.2.2 against master#ff1737bb00913444173658b4e0b274fd79aabf66 for pr-132712-1
[INFO] extracting crate btrfs2 1.2.2 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate btrfs2 1.2.2 on toolchain ff1737bb00913444173658b4e0b274fd79aabf66
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate btrfs2 1.2.2
[INFO] finished tweaking crates.io crate btrfs2 1.2.2
[INFO] tweaked toml for crates.io crate btrfs2 1.2.2 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 15 packages to latest compatible versions
[INFO] [stderr]       Adding crc v1.8.1 (available: v3.2.1)
[INFO] [stderr]       Adding flate2 v0.2.20 (available: v1.0.35)
[INFO] [stderr]       Adding lazy_static v0.2.11 (available: v1.5.0)
[INFO] [stderr]       Adding minilzo v0.1.2 (available: v0.2.0)
[INFO] [stderr]       Adding nix v0.8.1 (available: v0.29.0)
[INFO] [stderr]       Adding uuid v0.3.1 (available: v1.11.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded flate2 v0.2.20
[INFO] [stderr]   Downloaded minilzo v0.1.2
[INFO] [stderr]   Downloaded build_const v0.2.2
[INFO] [stderr]   Downloaded minilzo-sys v0.1.0
[INFO] [stderr]   Downloaded uuid v0.3.1
[INFO] [stderr]   Downloaded nix v0.8.1
[INFO] [stderr]   Downloaded miniz-sys v0.1.12
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c60864670148a90d92ac18d2ddf029936be1ba8b63d93ff2abd4b53005ba30a6
[INFO] running `Command { std: "docker" "start" "-a" "c60864670148a90d92ac18d2ddf029936be1ba8b63d93ff2abd4b53005ba30a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c60864670148a90d92ac18d2ddf029936be1ba8b63d93ff2abd4b53005ba30a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c60864670148a90d92ac18d2ddf029936be1ba8b63d93ff2abd4b53005ba30a6", kill_on_drop: false }`
[INFO] [stdout] c60864670148a90d92ac18d2ddf029936be1ba8b63d93ff2abd4b53005ba30a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+ff1737bb00913444173658b4e0b274fd79aabf66" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ebb839627148ee97c3b2ccd5efccbcd088dcb843c2903af897f58affba6de017
[INFO] running `Command { std: "docker" "start" "-a" "ebb839627148ee97c3b2ccd5efccbcd088dcb843c2903af897f58affba6de017", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]     Checking minilzo-sys v0.1.0
[INFO] [stderr]     Checking uuid v0.3.1
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]     Checking nix v0.8.1
[INFO] [stderr]     Checking minilzo v0.1.2
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking flate2 v0.2.20
[INFO] [stderr]     Checking btrfs2 v1.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0793]: reference to packed field is unaligned
[INFO] [stdout]    --> src/diskformat/item/extent_data.rs:215:7
[INFO] [stdout]     |
[INFO] [stdout] 215 |                         self.data ().other_encoding)
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: packed structs are only aligned by one byte, and many modern architectures penalize unaligned field accesses
[INFO] [stdout]     = note: creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
[INFO] [stdout]     = help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers)
[INFO] [stdout]     = note: this error originates in the macro `$crate::__export::format_args` which comes from the expansion of the macro `format` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0793]: reference to packed field is unaligned
[INFO] [stdout]    --> src/diskformat/item/extent_data.rs:215:7
[INFO] [stdout]     |
[INFO] [stdout] 215 |                         self.data ().other_encoding)
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: packed structs are only aligned by one byte, and many modern architectures penalize unaligned field accesses
[INFO] [stdout]     = note: creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
[INFO] [stdout]     = help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers)
[INFO] [stdout]     = note: this error originates in the macro `$crate::__export::format_args` which comes from the expansion of the macro `format` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0793`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0793`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `btrfs2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `btrfs2` (lib test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "ebb839627148ee97c3b2ccd5efccbcd088dcb843c2903af897f58affba6de017", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebb839627148ee97c3b2ccd5efccbcd088dcb843c2903af897f58affba6de017", kill_on_drop: false }`
[INFO] [stdout] ebb839627148ee97c3b2ccd5efccbcd088dcb843c2903af897f58affba6de017