[INFO] crate btrfs2 1.2.2 is already in cache
[INFO] checking btrfs2-1.2.2 against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] extracting crate btrfs2 1.2.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate btrfs2 1.2.2 on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] eab13c718ce95da0241a7902eaec5e7f7ee784050a089dbb3d77b0d1dc574624
[INFO] running `"docker" "start" "-a" "eab13c718ce95da0241a7902eaec5e7f7ee784050a089dbb3d77b0d1dc574624"`
[INFO] [stderr]     Checking uuid v0.3.1
[INFO] [stderr]     Checking minilzo-sys v0.1.0
[INFO] [stderr]     Checking nix v0.8.1
[INFO] [stderr]     Checking minilzo v0.1.2
[INFO] [stderr]     Checking btrfs2 v1.2.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/diskformat/item/extent_data.rs:228:42
[INFO] [stderr]     |
[INFO] [stderr] 228 |                 BTRFS_EXTENT_DATA_LZO_COMPRESSION => try! (
[INFO] [stderr]     |                                                      ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/linux/types/file_descriptor.rs:22:4
[INFO] [stderr]    |
[INFO] [stderr] 22 |             try! (
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/linux/types/file_descriptor.rs:35:4
[INFO] [stderr]    |
[INFO] [stderr] 35 |             try! (
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/linux/operations/deduplicate.rs:186:3
[INFO] [stderr]     |
[INFO] [stderr] 186 |         try! (
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/linux/operations/deduplicate.rs:203:3
[INFO] [stderr]     |
[INFO] [stderr] 203 |         try! (
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/linux/operations/deduplicate.rs:229:4
[INFO] [stderr]     |
[INFO] [stderr] 229 |             try! (
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/linux/operations/deduplicate.rs:278:2
[INFO] [stderr]     |
[INFO] [stderr] 278 |     try! (
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/linux/operations/fiemap.rs:19:3
[INFO] [stderr]    |
[INFO] [stderr] 19 |         try! (
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/linux/operations/fiemap.rs:52:4
[INFO] [stderr]    |
[INFO] [stderr] 52 |             try! (
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/linux/operations/filesystem_info.rs:139:4
[INFO] [stderr]     |
[INFO] [stderr] 139 |             try! (
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/linux/operations/space_info.rs:23:4
[INFO] [stderr]    |
[INFO] [stderr] 23 |             try! (
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | #[ macro_use ]
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::BTreeMap`
[INFO] [stderr]  --> src/diskformat/tree/root_tree.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::BTreeMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `linux::imports::*`
[INFO] [stderr]  --> src/linux/ctypes/ioctl_constants.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use linux::imports::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/diskformat/item/extent_data.rs:228:42
[INFO] [stderr]     |
[INFO] [stderr] 228 |                 BTRFS_EXTENT_DATA_LZO_COMPRESSION => try! (
[INFO] [stderr]     |                                                      ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/linux/types/file_descriptor.rs:22:4
[INFO] [stderr]    |
[INFO] [stderr] 22 |             try! (
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/linux/types/file_descriptor.rs:35:4
[INFO] [stderr]    |
[INFO] [stderr] 35 |             try! (
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/linux/operations/deduplicate.rs:186:3
[INFO] [stderr]     |
[INFO] [stderr] 186 |         try! (
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/linux/operations/deduplicate.rs:203:3
[INFO] [stderr]     |
[INFO] [stderr] 203 |         try! (
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/linux/operations/deduplicate.rs:229:4
[INFO] [stderr]     |
[INFO] [stderr] 229 |             try! (
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/linux/operations/deduplicate.rs:278:2
[INFO] [stderr]     |
[INFO] [stderr] 278 |     try! (
[INFO] [stderr]     |     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/linux/operations/fiemap.rs:19:3
[INFO] [stderr]    |
[INFO] [stderr] 19 |         try! (
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/linux/operations/fiemap.rs:52:4
[INFO] [stderr]    |
[INFO] [stderr] 52 |             try! (
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/linux/operations/filesystem_info.rs:139:4
[INFO] [stderr]     |
[INFO] [stderr] 139 |             try! (
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/linux/operations/space_info.rs:23:4
[INFO] [stderr]    |
[INFO] [stderr] 23 |             try! (
[INFO] [stderr]    |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | #[ macro_use ]
[INFO] [stderr]    | ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::BTreeMap`
[INFO] [stderr]  --> src/diskformat/tree/root_tree.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::BTreeMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `linux::imports::*`
[INFO] [stderr]  --> src/linux/ctypes/ioctl_constants.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use linux::imports::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/linux/operations/deduplicate.rs:196:14
[INFO] [stderr]     |
[INFO] [stderr] 196 |                 io_error.description ())
[INFO] [stderr]     |                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/linux/operations/fiemap.rs:186:13
[INFO] [stderr]     |
[INFO] [stderr] 186 |     if let Err(e) = fiemap_result {
[INFO] [stderr]     |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/linux/operations/filesystem_info.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |     if let Err(e) = get_fs_info_result {
[INFO] [stderr]    |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/linux/operations/filesystem_info.rs:80:13
[INFO] [stderr]    |
[INFO] [stderr] 80 |     if let Err(e) = get_dev_info_result {
[INFO] [stderr]    |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/linux/operations/space_info.rs:134:13
[INFO] [stderr]     |
[INFO] [stderr] 134 |     if let Err(e) = get_space_args_real_result {
[INFO] [stderr]     |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::description': use the Display impl or to_string()
[INFO] [stderr]    --> src/linux/operations/deduplicate.rs:196:14
[INFO] [stderr]     |
[INFO] [stderr] 196 |                 io_error.description ())
[INFO] [stderr]     |                          ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/linux/operations/fiemap.rs:186:13
[INFO] [stderr]     |
[INFO] [stderr] 186 |     if let Err(e) = fiemap_result {
[INFO] [stderr]     |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/linux/operations/filesystem_info.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |     if let Err(e) = get_fs_info_result {
[INFO] [stderr]    |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/linux/operations/filesystem_info.rs:80:13
[INFO] [stderr]    |
[INFO] [stderr] 80 |     if let Err(e) = get_dev_info_result {
[INFO] [stderr]    |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]    --> src/linux/operations/space_info.rs:134:13
[INFO] [stderr]     |
[INFO] [stderr] 134 |     if let Err(e) = get_space_args_real_result {
[INFO] [stderr]     |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[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:215:7
[INFO] [stderr]     |
[INFO] [stderr] 215 |                         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:28:2
[INFO] [stderr]    |
[INFO] [stderr] 28 |       fn lzo2a_decompress (
[INFO] [stderr]    |  _____^
[INFO] [stderr] 29 | |         src: * const u8,
[INFO] [stderr] 30 | |         src_len: libc::c_uint,
[INFO] [stderr] 31 | |         dst: * const u8,
[INFO] [stderr] 32 | |         dst_len: * mut libc::c_uint,
[INFO] [stderr] 33 | |         wrkmem: * const u8,
[INFO] [stderr] 34 | |     ) -> libc::c_int;
[INFO] [stderr]    | |_____________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `superblock`
[INFO] [stderr]   --> src/diskformat/superblock.rs:43:2
[INFO] [stderr]    |
[INFO] [stderr] 43 |     superblock: & 'a BtrfsSuperblock,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/compress/lzo.rs:109:2
[INFO] [stderr]     |
[INFO] [stderr] 109 |       io::stderr ().write_all (
[INFO] [stderr]     |  _____^
[INFO] [stderr] 110 | |         b"LZO\r\n");
[INFO] [stderr]     | |____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/compress/lzo.rs:120:2
[INFO] [stderr]     |
[INFO] [stderr] 120 |       io::stderr ().write_all (
[INFO] [stderr]     |  _____^
[INFO] [stderr] 121 | |         b"LZO2\r\n");
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/compress/lzo.rs:148:2
[INFO] [stderr]     |
[INFO] [stderr] 148 |       io::stderr ().write_all (
[INFO] [stderr]     |  _____^
[INFO] [stderr] 149 | |         b"LZO3\r\n");
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/diskformat/item/extent_data.rs:236:1
[INFO] [stderr]     |
[INFO] [stderr] 236 | / io::stdout ().write_fmt (
[INFO] [stderr] 237 | |     format_args! (
[INFO] [stderr] 238 | |         "LZO SUCCESS {} -> {} bytes\r\n",
[INFO] [stderr] 239 | |         raw_data.len (),
[INFO] [stderr] 240 | |         uncompressed_data.len ()));
[INFO] [stderr]     | |___________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[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:215:7
[INFO] [stderr]     |
[INFO] [stderr] 215 |                         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:28:2
[INFO] [stderr]    |
[INFO] [stderr] 28 |       fn lzo2a_decompress (
[INFO] [stderr]    |  _____^
[INFO] [stderr] 29 | |         src: * const u8,
[INFO] [stderr] 30 | |         src_len: libc::c_uint,
[INFO] [stderr] 31 | |         dst: * const u8,
[INFO] [stderr] 32 | |         dst_len: * mut libc::c_uint,
[INFO] [stderr] 33 | |         wrkmem: * const u8,
[INFO] [stderr] 34 | |     ) -> libc::c_int;
[INFO] [stderr]    | |_____________________^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `superblock`
[INFO] [stderr]   --> src/diskformat/superblock.rs:43:2
[INFO] [stderr]    |
[INFO] [stderr] 43 |     superblock: & 'a BtrfsSuperblock,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/compress/lzo.rs:109:2
[INFO] [stderr]     |
[INFO] [stderr] 109 |       io::stderr ().write_all (
[INFO] [stderr]     |  _____^
[INFO] [stderr] 110 | |         b"LZO\r\n");
[INFO] [stderr]     | |____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/compress/lzo.rs:120:2
[INFO] [stderr]     |
[INFO] [stderr] 120 |       io::stderr ().write_all (
[INFO] [stderr]     |  _____^
[INFO] [stderr] 121 | |         b"LZO2\r\n");
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/compress/lzo.rs:148:2
[INFO] [stderr]     |
[INFO] [stderr] 148 |       io::stderr ().write_all (
[INFO] [stderr]     |  _____^
[INFO] [stderr] 149 | |         b"LZO3\r\n");
[INFO] [stderr]     | |_____________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/diskformat/item/extent_data.rs:236:1
[INFO] [stderr]     |
[INFO] [stderr] 236 | / io::stdout ().write_fmt (
[INFO] [stderr] 237 | |     format_args! (
[INFO] [stderr] 238 | |         "LZO SUCCESS {} -> {} bytes\r\n",
[INFO] [stderr] 239 | |         raw_data.len (),
[INFO] [stderr] 240 | |         uncompressed_data.len ()));
[INFO] [stderr]     | |___________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.14s
[INFO] running `"docker" "inspect" "eab13c718ce95da0241a7902eaec5e7f7ee784050a089dbb3d77b0d1dc574624"`
[INFO] running `"docker" "rm" "-f" "eab13c718ce95da0241a7902eaec5e7f7ee784050a089dbb3d77b0d1dc574624"`
[INFO] [stdout] eab13c718ce95da0241a7902eaec5e7f7ee784050a089dbb3d77b0d1dc574624
