Aug 30 23:05:21.441 INFO checking btrfs2-1.2.2 against try#2d477f9981361618ac78253c28051a66b6cea125 for pr-53707
Aug 30 23:05:21.441 INFO running: cargo +2d477f9981361618ac78253c28051a66b6cea125-alt check --frozen --all --all-targets
Aug 30 23:05:21.441 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53707/try#2d477f9981361618ac78253c28051a66b6cea125:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53707/worker-0/try#2d477f9981361618ac78253c28051a66b6cea125:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +2d477f9981361618ac78253c28051a66b6cea125-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Aug 30 23:05:21.622 INFO blam! e38fbdea4f9b01040d12ccad063d3d9a5c5eed6eb3988d2d6ecefd54fd600750
Aug 30 23:05:21.624 INFO running `"docker" "start" "-a" "e38fbdea4f9b01040d12ccad063d3d9a5c5eed6eb3988d2d6ecefd54fd600750"`
Aug 30 23:05:22.259 INFO kablam!     Checking uuid v0.3.1
Aug 30 23:05:22.603 INFO kablam!     Checking btrfs2 v1.2.2 (file:///source)
Aug 30 23:05:24.045 INFO kablam! warning: unused `#[macro_use]` import
Aug 30 23:05:24.045 INFO kablam!   --> src/lib.rs:13:1
Aug 30 23:05:24.045 INFO kablam!    |
Aug 30 23:05:24.045 INFO kablam! 13 | #[ macro_use ]
Aug 30 23:05:24.045 INFO kablam!    | ^^^^^^^^^^^^^^
Aug 30 23:05:24.045 INFO kablam!    |
Aug 30 23:05:24.045 INFO kablam!    = note: #[warn(unused_imports)] on by default
Aug 30 23:05:24.045 INFO kablam! 
Aug 30 23:05:24.051 INFO kablam! warning: unused import: `std::collections::BTreeMap`
Aug 30 23:05:24.051 INFO kablam!  --> src/diskformat/tree/root_tree.rs:1:5
Aug 30 23:05:24.051 INFO kablam!   |
Aug 30 23:05:24.051 INFO kablam! 1 | use std::collections::BTreeMap;
Aug 30 23:05:24.051 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 30 23:05:24.051 INFO kablam! 
Aug 30 23:05:24.051 INFO kablam! warning: unused import: `linux::imports::*`
Aug 30 23:05:24.051 INFO kablam!  --> src/linux/ctypes/ioctl_constants.rs:1:5
Aug 30 23:05:24.052 INFO kablam!   |
Aug 30 23:05:24.052 INFO kablam! 1 | use linux::imports::*;
Aug 30 23:05:24.052 INFO kablam!   |     ^^^^^^^^^^^^^^^^^
Aug 30 23:05:24.052 INFO kablam! 
Aug 30 23:05:24.244 INFO kablam! warning: unused `#[macro_use]` import
Aug 30 23:05:24.244 INFO kablam!   --> src/lib.rs:13:1
Aug 30 23:05:24.244 INFO kablam!    |
Aug 30 23:05:24.244 INFO kablam! 13 | #[ macro_use ]
Aug 30 23:05:24.244 INFO kablam!    | ^^^^^^^^^^^^^^
Aug 30 23:05:24.244 INFO kablam!    |
Aug 30 23:05:24.244 INFO kablam!    = note: #[warn(unused_imports)] on by default
Aug 30 23:05:24.244 INFO kablam! 
Aug 30 23:05:24.257 INFO kablam! warning: unused import: `std::collections::BTreeMap`
Aug 30 23:05:24.257 INFO kablam!  --> src/diskformat/tree/root_tree.rs:1:5
Aug 30 23:05:24.257 INFO kablam!   |
Aug 30 23:05:24.257 INFO kablam! 1 | use std::collections::BTreeMap;
Aug 30 23:05:24.257 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 30 23:05:24.257 INFO kablam! 
Aug 30 23:05:24.258 INFO kablam! warning: unused import: `linux::imports::*`
Aug 30 23:05:24.258 INFO kablam!  --> src/linux/ctypes/ioctl_constants.rs:1:5
Aug 30 23:05:24.258 INFO kablam!   |
Aug 30 23:05:24.258 INFO kablam! 1 | use linux::imports::*;
Aug 30 23:05:24.258 INFO kablam!   |     ^^^^^^^^^^^^^^^^^
Aug 30 23:05:24.258 INFO kablam! 
Aug 30 23:05:25.607 INFO kablam! warning: unused variable: `e`
Aug 30 23:05:25.607 INFO kablam!    --> src/linux/operations/fiemap.rs:186:13
Aug 30 23:05:25.607 INFO kablam!     |
Aug 30 23:05:25.607 INFO kablam! 186 |     if let Err(e) = fiemap_result {
Aug 30 23:05:25.607 INFO kablam!     |                ^ help: consider using `_e` instead
Aug 30 23:05:25.607 INFO kablam!     |
Aug 30 23:05:25.607 INFO kablam!     = note: #[warn(unused_variables)] on by default
Aug 30 23:05:25.607 INFO kablam! 
Aug 30 23:05:25.608 INFO kablam! warning: unused variable: `e`
Aug 30 23:05:25.608 INFO kablam!   --> src/linux/operations/filesystem_info.rs:31:13
Aug 30 23:05:25.608 INFO kablam!    |
Aug 30 23:05:25.608 INFO kablam! 31 |     if let Err(e) = get_fs_info_result {
Aug 30 23:05:25.608 INFO kablam!    |                ^ help: consider using `_e` instead
Aug 30 23:05:25.608 INFO kablam! 
Aug 30 23:05:25.608 INFO kablam! warning: unused variable: `e`
Aug 30 23:05:25.608 INFO kablam!   --> src/linux/operations/filesystem_info.rs:80:13
Aug 30 23:05:25.608 INFO kablam!    |
Aug 30 23:05:25.608 INFO kablam! 80 |     if let Err(e) = get_dev_info_result {
Aug 30 23:05:25.608 INFO kablam!    |                ^ help: consider using `_e` instead
Aug 30 23:05:25.608 INFO kablam! 
Aug 30 23:05:25.608 INFO kablam! warning: unused variable: `e`
Aug 30 23:05:25.608 INFO kablam!    --> src/linux/operations/space_info.rs:134:13
Aug 30 23:05:25.608 INFO kablam!     |
Aug 30 23:05:25.608 INFO kablam! 134 |     if let Err(e) = get_space_args_real_result {
Aug 30 23:05:25.608 INFO kablam!     |                ^ help: consider using `_e` instead
Aug 30 23:05:25.609 INFO kablam! 
Aug 30 23:05:25.666 INFO kablam! warning: unused variable: `e`
Aug 30 23:05:25.666 INFO kablam!    --> src/linux/operations/fiemap.rs:186:13
Aug 30 23:05:25.666 INFO kablam!     |
Aug 30 23:05:25.666 INFO kablam! 186 |     if let Err(e) = fiemap_result {
Aug 30 23:05:25.666 INFO kablam!     |                ^ help: consider using `_e` instead
Aug 30 23:05:25.666 INFO kablam!     |
Aug 30 23:05:25.666 INFO kablam!     = note: #[warn(unused_variables)] on by default
Aug 30 23:05:25.666 INFO kablam! 
Aug 30 23:05:25.666 INFO kablam! warning: unused variable: `e`
Aug 30 23:05:25.666 INFO kablam!   --> src/linux/operations/filesystem_info.rs:31:13
Aug 30 23:05:25.666 INFO kablam!    |
Aug 30 23:05:25.666 INFO kablam! 31 |     if let Err(e) = get_fs_info_result {
Aug 30 23:05:25.667 INFO kablam!    |                ^ help: consider using `_e` instead
Aug 30 23:05:25.667 INFO kablam! 
Aug 30 23:05:25.667 INFO kablam! warning: unused variable: `e`
Aug 30 23:05:25.667 INFO kablam!   --> src/linux/operations/filesystem_info.rs:80:13
Aug 30 23:05:25.667 INFO kablam!    |
Aug 30 23:05:25.667 INFO kablam! 80 |     if let Err(e) = get_dev_info_result {
Aug 30 23:05:25.667 INFO kablam!    |                ^ help: consider using `_e` instead
Aug 30 23:05:25.667 INFO kablam! 
Aug 30 23:05:25.667 INFO kablam! warning: unused variable: `e`
Aug 30 23:05:25.667 INFO kablam!    --> src/linux/operations/space_info.rs:134:13
Aug 30 23:05:25.667 INFO kablam!     |
Aug 30 23:05:25.667 INFO kablam! 134 |     if let Err(e) = get_space_args_real_result {
Aug 30 23:05:25.667 INFO kablam!     |                ^ help: consider using `_e` instead
Aug 30 23:05:25.667 INFO kablam! 
Aug 30 23:05:26.170 INFO kablam! warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
Aug 30 23:05:26.170 INFO kablam!    --> src/diskformat/item/extent_data.rs:215:7
Aug 30 23:05:26.170 INFO kablam!     |
Aug 30 23:05:26.170 INFO kablam! 215 |                         self.data ().other_encoding)
Aug 30 23:05:26.170 INFO kablam!     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 30 23:05:26.170 INFO kablam!     |
Aug 30 23:05:26.170 INFO kablam!     = note: #[warn(safe_packed_borrows)] on by default
Aug 30 23:05:26.170 INFO kablam!     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Aug 30 23:05:26.170 INFO kablam!     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
Aug 30 23:05:26.170 INFO kablam!     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
Aug 30 23:05:26.170 INFO kablam! 
Aug 30 23:05:26.174 INFO kablam! warning: foreign function is never used: `lzo2a_decompress`
Aug 30 23:05:26.174 INFO kablam!   --> src/compress/lzo.rs:28:2
Aug 30 23:05:26.174 INFO kablam!    |
Aug 30 23:05:26.174 INFO kablam! 28 |       fn lzo2a_decompress (
Aug 30 23:05:26.174 INFO kablam!    |  _____^
Aug 30 23:05:26.174 INFO kablam! 29 | |         src: * const u8,
Aug 30 23:05:26.174 INFO kablam! 30 | |         src_len: libc::c_uint,
Aug 30 23:05:26.174 INFO kablam! 31 | |         dst: * const u8,
Aug 30 23:05:26.174 INFO kablam! 32 | |         dst_len: * mut libc::c_uint,
Aug 30 23:05:26.175 INFO kablam! 33 | |         wrkmem: * const u8,
Aug 30 23:05:26.175 INFO kablam! 34 | |     ) -> libc::c_int;
Aug 30 23:05:26.175 INFO kablam!    | |_____________________^
Aug 30 23:05:26.175 INFO kablam!    |
Aug 30 23:05:26.175 INFO kablam!    = note: #[warn(dead_code)] on by default
Aug 30 23:05:26.175 INFO kablam! 
Aug 30 23:05:26.175 INFO kablam! warning: field is never used: `superblock`
Aug 30 23:05:26.175 INFO kablam!   --> src/diskformat/superblock.rs:43:2
Aug 30 23:05:26.175 INFO kablam!    |
Aug 30 23:05:26.175 INFO kablam! 43 |     superblock: & 'a BtrfsSuperblock,
Aug 30 23:05:26.176 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 30 23:05:26.176 INFO kablam! 
Aug 30 23:05:26.177 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 30 23:05:26.177 INFO kablam!    --> src/compress/lzo.rs:109:2
Aug 30 23:05:26.177 INFO kablam!     |
Aug 30 23:05:26.177 INFO kablam! 109 |       io::stderr ().write_all (
Aug 30 23:05:26.177 INFO kablam!     |  _____^
Aug 30 23:05:26.177 INFO kablam! 110 | |         b"LZO\r\n");
Aug 30 23:05:26.177 INFO kablam!     | |____________________^
Aug 30 23:05:26.177 INFO kablam!     |
Aug 30 23:05:26.177 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Aug 30 23:05:26.177 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Aug 30 23:05:26.178 INFO kablam! 
Aug 30 23:05:26.178 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 30 23:05:26.178 INFO kablam!    --> src/compress/lzo.rs:120:2
Aug 30 23:05:26.178 INFO kablam!     |
Aug 30 23:05:26.178 INFO kablam! 120 |       io::stderr ().write_all (
Aug 30 23:05:26.178 INFO kablam!     |  _____^
Aug 30 23:05:26.178 INFO kablam! 121 | |         b"LZO2\r\n");
Aug 30 23:05:26.178 INFO kablam!     | |_____________________^
Aug 30 23:05:26.178 INFO kablam!     |
Aug 30 23:05:26.178 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Aug 30 23:05:26.179 INFO kablam! 
Aug 30 23:05:26.179 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 30 23:05:26.179 INFO kablam!    --> src/compress/lzo.rs:148:2
Aug 30 23:05:26.179 INFO kablam!     |
Aug 30 23:05:26.179 INFO kablam! 148 |       io::stderr ().write_all (
Aug 30 23:05:26.179 INFO kablam!     |  _____^
Aug 30 23:05:26.179 INFO kablam! 149 | |         b"LZO3\r\n");
Aug 30 23:05:26.179 INFO kablam!     | |_____________________^
Aug 30 23:05:26.179 INFO kablam!     |
Aug 30 23:05:26.179 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Aug 30 23:05:26.179 INFO kablam! 
Aug 30 23:05:26.192 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 30 23:05:26.192 INFO kablam!    --> src/diskformat/item/extent_data.rs:236:1
Aug 30 23:05:26.192 INFO kablam!     |
Aug 30 23:05:26.192 INFO kablam! 236 | / io::stdout ().write_fmt (
Aug 30 23:05:26.192 INFO kablam! 237 | |     format_args! (
Aug 30 23:05:26.192 INFO kablam! 238 | |         "LZO SUCCESS {} -> {} bytes\r\n",
Aug 30 23:05:26.192 INFO kablam! 239 | |         raw_data.len (),
Aug 30 23:05:26.192 INFO kablam! 240 | |         uncompressed_data.len ()));
Aug 30 23:05:26.192 INFO kablam!     | |___________________________________^
Aug 30 23:05:26.192 INFO kablam!     |
Aug 30 23:05:26.192 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Aug 30 23:05:26.192 INFO kablam! 
Aug 30 23:05:26.226 INFO kablam! warning: borrow of packed field is unsafe and requires unsafe function or block (error E0133)
Aug 30 23:05:26.226 INFO kablam!    --> src/diskformat/item/extent_data.rs:215:7
Aug 30 23:05:26.226 INFO kablam!     |
Aug 30 23:05:26.226 INFO kablam! 215 |                         self.data ().other_encoding)
Aug 30 23:05:26.226 INFO kablam!     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 30 23:05:26.226 INFO kablam!     |
Aug 30 23:05:26.226 INFO kablam!     = note: #[warn(safe_packed_borrows)] on by default
Aug 30 23:05:26.226 INFO kablam!     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Aug 30 23:05:26.226 INFO kablam!     = note: for more information, see issue #46043 <https://github.com/rust-lang/rust/issues/46043>
Aug 30 23:05:26.226 INFO kablam!     = note: fields of packed structs might be misaligned: dereferencing a misaligned pointer or even just creating a misaligned reference is undefined behavior
Aug 30 23:05:26.226 INFO kablam! 
Aug 30 23:05:26.230 INFO kablam! warning: foreign function is never used: `lzo2a_decompress`
Aug 30 23:05:26.230 INFO kablam!   --> src/compress/lzo.rs:28:2
Aug 30 23:05:26.230 INFO kablam!    |
Aug 30 23:05:26.230 INFO kablam! 28 |       fn lzo2a_decompress (
Aug 30 23:05:26.230 INFO kablam!    |  _____^
Aug 30 23:05:26.230 INFO kablam! 29 | |         src: * const u8,
Aug 30 23:05:26.231 INFO kablam! 30 | |         src_len: libc::c_uint,
Aug 30 23:05:26.231 INFO kablam! 31 | |         dst: * const u8,
Aug 30 23:05:26.231 INFO kablam! 32 | |         dst_len: * mut libc::c_uint,
Aug 30 23:05:26.231 INFO kablam! 33 | |         wrkmem: * const u8,
Aug 30 23:05:26.231 INFO kablam! 34 | |     ) -> libc::c_int;
Aug 30 23:05:26.231 INFO kablam!    | |_____________________^
Aug 30 23:05:26.231 INFO kablam!    |
Aug 30 23:05:26.231 INFO kablam!    = note: #[warn(dead_code)] on by default
Aug 30 23:05:26.231 INFO kablam! 
Aug 30 23:05:26.231 INFO kablam! warning: field is never used: `superblock`
Aug 30 23:05:26.231 INFO kablam!   --> src/diskformat/superblock.rs:43:2
Aug 30 23:05:26.232 INFO kablam!    |
Aug 30 23:05:26.232 INFO kablam! 43 |     superblock: & 'a BtrfsSuperblock,
Aug 30 23:05:26.232 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Aug 30 23:05:26.232 INFO kablam! 
Aug 30 23:05:26.233 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 30 23:05:26.233 INFO kablam!    --> src/compress/lzo.rs:109:2
Aug 30 23:05:26.234 INFO kablam!     |
Aug 30 23:05:26.234 INFO kablam! 109 |       io::stderr ().write_all (
Aug 30 23:05:26.234 INFO kablam!     |  _____^
Aug 30 23:05:26.234 INFO kablam! 110 | |         b"LZO\r\n");
Aug 30 23:05:26.234 INFO kablam!     | |____________________^
Aug 30 23:05:26.234 INFO kablam!     |
Aug 30 23:05:26.234 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Aug 30 23:05:26.234 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Aug 30 23:05:26.234 INFO kablam! 
Aug 30 23:05:26.234 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 30 23:05:26.235 INFO kablam!    --> src/compress/lzo.rs:120:2
Aug 30 23:05:26.235 INFO kablam!     |
Aug 30 23:05:26.235 INFO kablam! 120 |       io::stderr ().write_all (
Aug 30 23:05:26.235 INFO kablam!     |  _____^
Aug 30 23:05:26.235 INFO kablam! 121 | |         b"LZO2\r\n");
Aug 30 23:05:26.235 INFO kablam!     | |_____________________^
Aug 30 23:05:26.235 INFO kablam!     |
Aug 30 23:05:26.235 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Aug 30 23:05:26.235 INFO kablam! 
Aug 30 23:05:26.235 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 30 23:05:26.235 INFO kablam!    --> src/compress/lzo.rs:148:2
Aug 30 23:05:26.235 INFO kablam!     |
Aug 30 23:05:26.235 INFO kablam! 148 |       io::stderr ().write_all (
Aug 30 23:05:26.235 INFO kablam!     |  _____^
Aug 30 23:05:26.235 INFO kablam! 149 | |         b"LZO3\r\n");
Aug 30 23:05:26.235 INFO kablam!     | |_____________________^
Aug 30 23:05:26.235 INFO kablam!     |
Aug 30 23:05:26.235 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Aug 30 23:05:26.235 INFO kablam! 
Aug 30 23:05:26.248 INFO kablam! warning: unused `std::result::Result` which must be used
Aug 30 23:05:26.248 INFO kablam!    --> src/diskformat/item/extent_data.rs:236:1
Aug 30 23:05:26.248 INFO kablam!     |
Aug 30 23:05:26.248 INFO kablam! 236 | / io::stdout ().write_fmt (
Aug 30 23:05:26.248 INFO kablam! 237 | |     format_args! (
Aug 30 23:05:26.248 INFO kablam! 238 | |         "LZO SUCCESS {} -> {} bytes\r\n",
Aug 30 23:05:26.248 INFO kablam! 239 | |         raw_data.len (),
Aug 30 23:05:26.248 INFO kablam! 240 | |         uncompressed_data.len ()));
Aug 30 23:05:26.248 INFO kablam!     | |___________________________________^
Aug 30 23:05:26.248 INFO kablam!     |
Aug 30 23:05:26.248 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Aug 30 23:05:26.248 INFO kablam! 
Aug 30 23:05:26.352 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.13s
Aug 30 23:05:26.370 INFO kablam! su: No module specific data is present
Aug 30 23:05:26.946 INFO running `"docker" "rm" "-f" "e38fbdea4f9b01040d12ccad063d3d9a5c5eed6eb3988d2d6ecefd54fd600750"`
Aug 30 23:05:27.054 INFO blam! e38fbdea4f9b01040d12ccad063d3d9a5c5eed6eb3988d2d6ecefd54fd600750