[INFO] fetching crate btrfs 1.2.2...
[INFO] testing btrfs-1.2.2 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate btrfs 1.2.2 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate btrfs 1.2.2 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate btrfs 1.2.2
[INFO] finished tweaking crates.io crate btrfs 1.2.2
[INFO] tweaked toml for crates.io crate btrfs 1.2.2 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 21c136ba3955e09b2813339c64d433caa486f21d170bfd73fb6d4307978f6527
[INFO] running `Command { std: "docker" "start" "-a" "21c136ba3955e09b2813339c64d433caa486f21d170bfd73fb6d4307978f6527", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "21c136ba3955e09b2813339c64d433caa486f21d170bfd73fb6d4307978f6527", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "21c136ba3955e09b2813339c64d433caa486f21d170bfd73fb6d4307978f6527", kill_on_drop: false }`
[INFO] [stdout] 21c136ba3955e09b2813339c64d433caa486f21d170bfd73fb6d4307978f6527
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 264de2691fe855724c936d542fc47e50a63c2857331fd101945d8d301cd6a615
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "264de2691fe855724c936d542fc47e50a63c2857331fd101945d8d301cd6a615", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling build_const v0.2.1
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling uuid v0.5.1
[INFO] [stderr]    Compiling minilzo-sys v0.1.0
[INFO] [stderr]    Compiling nix v0.8.1
[INFO] [stderr]    Compiling minilzo v0.2.0
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling btrfs v1.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/diskformat/item/extent_data.rs:226:42
[INFO] [stdout]     |
[INFO] [stdout] 226 |                 BTRFS_EXTENT_DATA_LZO_COMPRESSION => try! (
[INFO] [stdout]     |                                                      ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/linux/types/file_descriptor.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 |             try! (
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/linux/types/file_descriptor.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 |             try! (
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/linux/operations/deduplicate.rs:183:3
[INFO] [stdout]     |
[INFO] [stdout] 183 |         try! (
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/linux/operations/deduplicate.rs:200:3
[INFO] [stdout]     |
[INFO] [stdout] 200 |         try! (
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/linux/operations/deduplicate.rs:226:4
[INFO] [stdout]     |
[INFO] [stdout] 226 |             try! (
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/linux/operations/deduplicate.rs:275:2
[INFO] [stdout]     |
[INFO] [stdout] 275 |     try! (
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/linux/operations/fiemap.rs:19:3
[INFO] [stdout]    |
[INFO] [stdout] 19 |         try! (
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/linux/operations/fiemap.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 |             try! (
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/linux/operations/filesystem_info.rs:132:4
[INFO] [stdout]     |
[INFO] [stdout] 132 |             try! (
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/linux/operations/space_info.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 |             try! (
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[ macro_use ]
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/linux/operations/deduplicate.rs:193:14
[INFO] [stdout]     |
[INFO] [stdout] 193 |                 io_error.description ())
[INFO] [stdout]     |                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/diskformat/item/extent_data.rs:213:7
[INFO] [stdout]     |
[INFO] [stdout] 213 |                         self.data ().other_encoding)
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(safe_packed_borrows)]` 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 #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `lzo2a_decompress`
[INFO] [stdout]   --> src/compress/lzo.rs:25:2
[INFO] [stdout]    |
[INFO] [stdout] 25 |       fn lzo2a_decompress (
[INFO] [stdout]    |  _____^
[INFO] [stdout] 26 | |         src: * const u8,
[INFO] [stdout] 27 | |         src_len: libc::c_uint,
[INFO] [stdout] 28 | |         dst: * const u8,
[INFO] [stdout] 29 | |         dst_len: * mut libc::c_uint,
[INFO] [stdout] 30 | |         wrkmem: * const u8,
[INFO] [stdout] 31 | |     ) -> libc::c_int;
[INFO] [stdout]    | |_____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.27s
[INFO] running `Command { std: "docker" "inspect" "264de2691fe855724c936d542fc47e50a63c2857331fd101945d8d301cd6a615", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "264de2691fe855724c936d542fc47e50a63c2857331fd101945d8d301cd6a615", kill_on_drop: false }`
[INFO] [stdout] 264de2691fe855724c936d542fc47e50a63c2857331fd101945d8d301cd6a615
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99eb03861a3f2c3c46fdd0c4fff66b542162b2486b04b3f6cfe52edbdbddfd48
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "99eb03861a3f2c3c46fdd0c4fff66b542162b2486b04b3f6cfe52edbdbddfd48", kill_on_drop: false }`
[INFO] [stderr]    Compiling btrfs v1.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/diskformat/item/extent_data.rs:226:42
[INFO] [stdout]     |
[INFO] [stdout] 226 |                 BTRFS_EXTENT_DATA_LZO_COMPRESSION => try! (
[INFO] [stdout]     |                                                      ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/linux/types/file_descriptor.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 |             try! (
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/linux/types/file_descriptor.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 |             try! (
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/linux/operations/deduplicate.rs:183:3
[INFO] [stdout]     |
[INFO] [stdout] 183 |         try! (
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/linux/operations/deduplicate.rs:200:3
[INFO] [stdout]     |
[INFO] [stdout] 200 |         try! (
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/linux/operations/deduplicate.rs:226:4
[INFO] [stdout]     |
[INFO] [stdout] 226 |             try! (
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/linux/operations/deduplicate.rs:275:2
[INFO] [stdout]     |
[INFO] [stdout] 275 |     try! (
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/linux/operations/fiemap.rs:19:3
[INFO] [stdout]    |
[INFO] [stdout] 19 |         try! (
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/linux/operations/fiemap.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 |             try! (
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/linux/operations/filesystem_info.rs:132:4
[INFO] [stdout]     |
[INFO] [stdout] 132 |             try! (
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/linux/operations/space_info.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 |             try! (
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[ macro_use ]
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/linux/operations/deduplicate.rs:193:14
[INFO] [stdout]     |
[INFO] [stdout] 193 |                 io_error.description ())
[INFO] [stdout]     |                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/diskformat/item/extent_data.rs:213:7
[INFO] [stdout]     |
[INFO] [stdout] 213 |                         self.data ().other_encoding)
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(safe_packed_borrows)]` 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 #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `lzo2a_decompress`
[INFO] [stdout]   --> src/compress/lzo.rs:25:2
[INFO] [stdout]    |
[INFO] [stdout] 25 |       fn lzo2a_decompress (
[INFO] [stdout]    |  _____^
[INFO] [stdout] 26 | |         src: * const u8,
[INFO] [stdout] 27 | |         src_len: libc::c_uint,
[INFO] [stdout] 28 | |         dst: * const u8,
[INFO] [stdout] 29 | |         dst_len: * mut libc::c_uint,
[INFO] [stdout] 30 | |         wrkmem: * const u8,
[INFO] [stdout] 31 | |     ) -> libc::c_int;
[INFO] [stdout]    | |_____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/diskformat/item/extent_data.rs:226:42
[INFO] [stdout]     |
[INFO] [stdout] 226 |                 BTRFS_EXTENT_DATA_LZO_COMPRESSION => try! (
[INFO] [stdout]     |                                                      ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/linux/types/file_descriptor.rs:22:4
[INFO] [stdout]    |
[INFO] [stdout] 22 |             try! (
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/linux/types/file_descriptor.rs:35:4
[INFO] [stdout]    |
[INFO] [stdout] 35 |             try! (
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/linux/operations/deduplicate.rs:183:3
[INFO] [stdout]     |
[INFO] [stdout] 183 |         try! (
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/linux/operations/deduplicate.rs:200:3
[INFO] [stdout]     |
[INFO] [stdout] 200 |         try! (
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/linux/operations/deduplicate.rs:226:4
[INFO] [stdout]     |
[INFO] [stdout] 226 |             try! (
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/linux/operations/deduplicate.rs:275:2
[INFO] [stdout]     |
[INFO] [stdout] 275 |     try! (
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/linux/operations/fiemap.rs:19:3
[INFO] [stdout]    |
[INFO] [stdout] 19 |         try! (
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/linux/operations/fiemap.rs:52:4
[INFO] [stdout]    |
[INFO] [stdout] 52 |             try! (
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/linux/operations/filesystem_info.rs:132:4
[INFO] [stdout]     |
[INFO] [stdout] 132 |             try! (
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/linux/operations/space_info.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 |             try! (
[INFO] [stdout]    |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:10:1
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[ macro_use ]
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/linux/operations/deduplicate.rs:193:14
[INFO] [stdout]     |
[INFO] [stdout] 193 |                 io_error.description ())
[INFO] [stdout]     |                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
[INFO] [stdout]    --> src/diskformat/item/extent_data.rs:213:7
[INFO] [stdout]     |
[INFO] [stdout] 213 |                         self.data ().other_encoding)
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(safe_packed_borrows)]` 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 #46043 <https://github.com/rust-lang/rust/issues/46043>
[INFO] [stdout]     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `lzo2a_decompress`
[INFO] [stdout]   --> src/compress/lzo.rs:25:2
[INFO] [stdout]    |
[INFO] [stdout] 25 |       fn lzo2a_decompress (
[INFO] [stdout]    |  _____^
[INFO] [stdout] 26 | |         src: * const u8,
[INFO] [stdout] 27 | |         src_len: libc::c_uint,
[INFO] [stdout] 28 | |         dst: * const u8,
[INFO] [stdout] 29 | |         dst_len: * mut libc::c_uint,
[INFO] [stdout] 30 | |         wrkmem: * const u8,
[INFO] [stdout] 31 | |     ) -> libc::c_int;
[INFO] [stdout]    | |_____________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: linking with `cc` failed: exit code: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: "cc" "-Wl,--as-needed" "-Wl,-z,noexecstack" "-m64" "-Wl,--eh-frame-hdr" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "/opt/rustwide/target/debug/deps/btrfs-636b3b2b81d3e836.btrfs.atd68exb-cgu.0.rcgu.o" "/opt/rustwide/target/debug/deps/btrfs-636b3b2b81d3e836.btrfs.atd68exb-cgu.1.rcgu.o" "/opt/rustwide/target/debug/deps/btrfs-636b3b2b81d3e836.btrfs.atd68exb-cgu.2.rcgu.o" "/opt/rustwide/target/debug/deps/btrfs-636b3b2b81d3e836.btrfs.atd68exb-cgu.3.rcgu.o" "/opt/rustwide/target/debug/deps/btrfs-636b3b2b81d3e836.btrfs.atd68exb-cgu.4.rcgu.o" "/opt/rustwide/target/debug/deps/btrfs-636b3b2b81d3e836.btrfs.atd68exb-cgu.5.rcgu.o" "/opt/rustwide/target/debug/deps/btrfs-636b3b2b81d3e836.btrfs.atd68exb-cgu.6.rcgu.o" "-o" "/opt/rustwide/target/debug/deps/btrfs-636b3b2b81d3e836" "/opt/rustwide/target/debug/deps/btrfs-636b3b2b81d3e836.4vkqdmurmb6fjmew.rcgu.o" "-Wl,--gc-sections" "-pie" "-Wl,-zrelro" "-Wl,-znow" "-nodefaultlibs" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/target/debug/build/miniz-sys-916b5dda450a9fb5/out" "-L" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-llzo2" "-lz" "-Wl,-Bstatic" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libtest-8c293b579fdb38fc.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libterm-ef7d6114ddb41a44.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgetopts-16c582eb506314ba.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunicode_width-6abbb81e68fea101.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_std-4437f76c42770bc3.rlib" "/opt/rustwide/target/debug/deps/libuuid-62580fef6de7c553.rlib" "/opt/rustwide/target/debug/deps/libminilzo-0e6836273a51625b.rlib" "/opt/rustwide/target/debug/deps/libminilzo_sys-d03883155f95292c.rlib" "/opt/rustwide/target/debug/deps/libflate2-f07a3839f7c37a44.rlib" "/opt/rustwide/target/debug/deps/libminiz_sys-d34b8076143290b2.rlib" "/opt/rustwide/target/debug/deps/libcrc-eb2f0502c7cf0197.rlib" "/opt/rustwide/target/debug/deps/libnix-3421e8b81d4a53e4.rlib" "/opt/rustwide/target/debug/deps/liblibc-e52aab25f5d90c7e.rlib" "/opt/rustwide/target/debug/deps/libvoid-2b8404f9072f9abf.rlib" "/opt/rustwide/target/debug/deps/libcfg_if-727e218cbe4629d5.rlib" "/opt/rustwide/target/debug/deps/libbitflags-7b15d77b989f677d.rlib" "/opt/rustwide/target/debug/deps/liblazy_static-2ea69cae54b65af6.rlib" "-Wl,--start-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-3532beb752f910d7.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-3529ece450b7f3c6.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-23e8f582a6744f80.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-5e7e0793b29cbf78.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-253e0736424ceb78.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-b6fd484888124c85.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-cca4d20e4b53839c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-0a7401891c2a4f50.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-efbb25e073df787e.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-25965457612624bc.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-09058283ea779342.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-ab973dacc0513511.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-b437d6640b1f764b.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-8cc0b2380206399c.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-727cdf2b6a468113.rlib" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-cf4d442d877ea2f4.rlib" "-Wl,--end-group" "/opt/rustwide/rustup-home/toolchains/beta-2020-10-09-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-7e5b6df427ca977c.rlib" "-Wl,-Bdynamic" "-llzo2" "-llzo2" "-lgcc_s" "-lc" "-lm" "-lrt" "-lpthread" "-lutil" "-ldl" "-lutil"
[INFO] [stdout]   = note: /usr/bin/ld: cannot find -llzo2
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `btrfs`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "99eb03861a3f2c3c46fdd0c4fff66b542162b2486b04b3f6cfe52edbdbddfd48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99eb03861a3f2c3c46fdd0c4fff66b542162b2486b04b3f6cfe52edbdbddfd48", kill_on_drop: false }`
[INFO] [stdout] 99eb03861a3f2c3c46fdd0c4fff66b542162b2486b04b3f6cfe52edbdbddfd48
