[INFO] fetching crate btrfs2 1.2.2...
[INFO] checking btrfs2-1.2.2 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[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 c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "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" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "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 bitflags v0.7.0 (latest: v2.5.0)
[INFO] [stderr]       Adding cfg-if v0.1.10 (latest: v1.0.0)
[INFO] [stderr]       Adding crc v1.8.1 (latest: v3.2.1)
[INFO] [stderr]       Adding flate2 v0.2.20 (latest: v1.0.30)
[INFO] [stderr]       Adding lazy_static v0.2.11 (latest: v1.4.0)
[INFO] [stderr]       Adding minilzo v0.1.2 (latest: v0.2.0)
[INFO] [stderr]       Adding nix v0.8.1 (latest: v0.28.0)
[INFO] [stderr]       Adding uuid v0.3.1 (latest: v1.8.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded uuid v0.3.1
[INFO] [stderr]   Downloaded nix v0.8.1
[INFO] [stderr]   Downloaded minilzo-sys v0.1.0
[INFO] [stderr]   Downloaded minilzo v0.1.2
[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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0918ab73555111ba54614302953a4faa1117623a6f0a78cd9880abaeb4a5da5b
[INFO] running `Command { std: "docker" "start" "-a" "0918ab73555111ba54614302953a4faa1117623a6f0a78cd9880abaeb4a5da5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0918ab73555111ba54614302953a4faa1117623a6f0a78cd9880abaeb4a5da5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0918ab73555111ba54614302953a4faa1117623a6f0a78cd9880abaeb4a5da5b", kill_on_drop: false }`
[INFO] [stdout] 0918ab73555111ba54614302953a4faa1117623a6f0a78cd9880abaeb4a5da5b
[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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 815fb3815e224b518470800a443d948731b2c73232b54aff65163e4bfe38708c
[INFO] running `Command { std: "docker" "start" "-a" "815fb3815e224b518470800a443d948731b2c73232b54aff65163e4bfe38708c", kill_on_drop: false }`
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]     Checking minilzo-sys v0.1.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking uuid v0.3.1
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking nix v0.8.1
[INFO] [stderr]     Checking minilzo v0.1.2
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking btrfs2 v1.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[ 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 macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/diskformat/item/extent_data.rs:228:42
[INFO] [stdout]     |
[INFO] [stdout] 228 |                 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: unused import: `std::collections::BTreeMap`
[INFO] [stdout]  --> src/diskformat/tree/root_tree.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::BTreeMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[ macro_use ]
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `linux::imports::*`
[INFO] [stdout]  --> src/linux/ctypes/ioctl_constants.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use linux::imports::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::ioctl_device_path::*`
[INFO] [stdout]   --> src/linux/ctypes/mod.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub use self::ioctl_device_path::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `linux::operations::*`
[INFO] [stdout]   --> src/linux/imports.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub use linux::operations::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/diskformat/item/extent_data.rs:228:42
[INFO] [stdout]     |
[INFO] [stdout] 228 |                 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:278:2
[INFO] [stdout]     |
[INFO] [stdout] 278 |     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:186:3
[INFO] [stdout]     |
[INFO] [stdout] 186 |         try! (
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::BTreeMap`
[INFO] [stdout]  --> src/diskformat/tree/root_tree.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::BTreeMap;
[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:203:3
[INFO] [stdout]     |
[INFO] [stdout] 203 |         try! (
[INFO] [stdout]     |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `linux::imports::*`
[INFO] [stdout]  --> src/linux/ctypes/ioctl_constants.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use linux::imports::*;
[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:229:4
[INFO] [stdout]     |
[INFO] [stdout] 229 |             try! (
[INFO] [stdout]     |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::ioctl_device_path::*`
[INFO] [stdout]   --> src/linux/ctypes/mod.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub use self::ioctl_device_path::*;
[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: unused import: `linux::operations::*`
[INFO] [stdout]   --> src/linux/imports.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub use linux::operations::*;
[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:139:4
[INFO] [stdout]     |
[INFO] [stdout] 139 |             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: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/space_info.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 |             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:278:2
[INFO] [stdout]     |
[INFO] [stdout] 278 |     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:186:3
[INFO] [stdout]     |
[INFO] [stdout] 186 |         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:203:3
[INFO] [stdout]     |
[INFO] [stdout] 203 |         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:229:4
[INFO] [stdout]     |
[INFO] [stdout] 229 |             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:139:4
[INFO] [stdout]     |
[INFO] [stdout] 139 |             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: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/linux/operations/deduplicate.rs:196:14
[INFO] [stdout]     |
[INFO] [stdout] 196 |                 io_error.description ())
[INFO] [stdout]     |                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/linux/operations/deduplicate.rs:196:14
[INFO] [stdout]     |
[INFO] [stdout] 196 |                 io_error.description ())
[INFO] [stdout]     |                          ^^^^^^^^^^^
[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 `$crate::__export::format_args` which comes from the expansion of the macro `format` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0793]: reference to packed field is unaligned
[INFO] [stdout]    --> src/diskformat/item/extent_data.rs:215:7
[INFO] [stdout]     |
[INFO] [stdout] 215 |                         self.data ().other_encoding)
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: packed structs are only aligned by one byte, and many modern architectures penalize unaligned field accesses
[INFO] [stdout]     = note: creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
[INFO] [stdout]     = help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers)
[INFO] [stdout]     = note: this error originates in the macro `$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] warning: unused variable: `e`
[INFO] [stdout]    --> src/linux/operations/fiemap.rs:186:13
[INFO] [stdout]     |
[INFO] [stdout] 186 |     if let Err(e) = fiemap_result {
[INFO] [stdout]     |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/linux/operations/filesystem_info.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |     if let Err(e) = get_fs_info_result {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/linux/operations/filesystem_info.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |     if let Err(e) = get_dev_info_result {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/linux/operations/space_info.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout] 134 |     if let Err(e) = get_space_args_real_result {
[INFO] [stdout]     |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/linux/operations/fiemap.rs:186:13
[INFO] [stdout]     |
[INFO] [stdout] 186 |     if let Err(e) = fiemap_result {
[INFO] [stdout]     |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/linux/operations/filesystem_info.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |     if let Err(e) = get_fs_info_result {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/linux/operations/filesystem_info.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |     if let Err(e) = get_dev_info_result {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/linux/operations/space_info.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout] 134 |     if let Err(e) = get_space_args_real_result {
[INFO] [stdout]     |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0793`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0793`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `btrfs2` (lib test) due to 2 previous errors; 21 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `btrfs2` (lib) due to 2 previous errors; 21 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "815fb3815e224b518470800a443d948731b2c73232b54aff65163e4bfe38708c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "815fb3815e224b518470800a443d948731b2c73232b54aff65163e4bfe38708c", kill_on_drop: false }`
[INFO] [stdout] 815fb3815e224b518470800a443d948731b2c73232b54aff65163e4bfe38708c
[INFO] checking btrfs2-1.2.2 against try#9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88 for pr-124157
[INFO] extracting crate btrfs2 1.2.2 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate btrfs2 1.2.2 on toolchain 9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "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-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "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 bitflags v0.7.0 (latest: v2.5.0)
[INFO] [stderr]       Adding cfg-if v0.1.10 (latest: v1.0.0)
[INFO] [stderr]       Adding crc v1.8.1 (latest: v3.2.1)
[INFO] [stderr]       Adding flate2 v0.2.20 (latest: v1.0.30)
[INFO] [stderr]       Adding lazy_static v0.2.11 (latest: v1.4.0)
[INFO] [stderr]       Adding minilzo v0.1.2 (latest: v0.2.0)
[INFO] [stderr]       Adding nix v0.8.1 (latest: v0.28.0)
[INFO] [stderr]       Adding uuid v0.3.1 (latest: v1.8.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4a8bb5dfdd73b010da4a4271236b29aef367068c0965b9a0434248ab2edfe957
[INFO] running `Command { std: "docker" "start" "-a" "4a8bb5dfdd73b010da4a4271236b29aef367068c0965b9a0434248ab2edfe957", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4a8bb5dfdd73b010da4a4271236b29aef367068c0965b9a0434248ab2edfe957", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a8bb5dfdd73b010da4a4271236b29aef367068c0965b9a0434248ab2edfe957", kill_on_drop: false }`
[INFO] [stdout] 4a8bb5dfdd73b010da4a4271236b29aef367068c0965b9a0434248ab2edfe957
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+9c7b5f5b6b8ec32bbbcf9f07fc0e5208da6c5f88" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bfd4484ba2467521e41a776d9f5e9bae040923a1b1027a988f243da67f3de7cd
[INFO] running `Command { std: "docker" "start" "-a" "bfd4484ba2467521e41a776d9f5e9bae040923a1b1027a988f243da67f3de7cd", kill_on_drop: false }`
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]     Checking minilzo-sys v0.1.0
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking uuid v0.3.1
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking nix v0.8.1
[INFO] [stderr]     Checking minilzo v0.1.2
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]     Checking btrfs2 v1.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[ 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 macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/diskformat/item/extent_data.rs:228:42
[INFO] [stdout]     |
[INFO] [stdout] 228 |                 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: unused import: `std::collections::BTreeMap`
[INFO] [stdout]  --> src/diskformat/tree/root_tree.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::BTreeMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `linux::imports::*`
[INFO] [stdout]  --> src/linux/ctypes/ioctl_constants.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use linux::imports::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[ macro_use ]
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::ioctl_device_path::*`
[INFO] [stdout]   --> src/linux/ctypes/mod.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub use self::ioctl_device_path::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `linux::operations::*`
[INFO] [stdout]   --> src/linux/imports.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub use linux::operations::*;
[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: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:278:2
[INFO] [stdout]     |
[INFO] [stdout] 278 |     try! (
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]    --> src/diskformat/item/extent_data.rs:228:42
[INFO] [stdout]     |
[INFO] [stdout] 228 |                 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/operations/deduplicate.rs:186:3
[INFO] [stdout]     |
[INFO] [stdout] 186 |         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:203:3
[INFO] [stdout]     |
[INFO] [stdout] 203 |         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:229:4
[INFO] [stdout]     |
[INFO] [stdout] 229 |             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:139:4
[INFO] [stdout]     |
[INFO] [stdout] 139 |             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 import: `std::collections::BTreeMap`
[INFO] [stdout]  --> src/diskformat/tree/root_tree.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::BTreeMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `linux::imports::*`
[INFO] [stdout]  --> src/linux/ctypes/ioctl_constants.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use linux::imports::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::ioctl_device_path::*`
[INFO] [stdout]   --> src/linux/ctypes/mod.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub use self::ioctl_device_path::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `linux::operations::*`
[INFO] [stdout]   --> src/linux/imports.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub use linux::operations::*;
[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: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:278:2
[INFO] [stdout]     |
[INFO] [stdout] 278 |     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:186:3
[INFO] [stdout]     |
[INFO] [stdout] 186 |         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:203:3
[INFO] [stdout]     |
[INFO] [stdout] 203 |         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:229:4
[INFO] [stdout]     |
[INFO] [stdout] 229 |             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:139:4
[INFO] [stdout]     |
[INFO] [stdout] 139 |             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: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/linux/operations/deduplicate.rs:196:14
[INFO] [stdout]     |
[INFO] [stdout] 196 |                 io_error.description ())
[INFO] [stdout]     |                          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/linux/operations/deduplicate.rs:196:14
[INFO] [stdout]     |
[INFO] [stdout] 196 |                 io_error.description ())
[INFO] [stdout]     |                          ^^^^^^^^^^^
[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 `$crate::__export::format_args` which comes from the expansion of the macro `format` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0793]: reference to packed field is unaligned
[INFO] [stdout]    --> src/diskformat/item/extent_data.rs:215:7
[INFO] [stdout]     |
[INFO] [stdout] 215 |                         self.data ().other_encoding)
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: packed structs are only aligned by one byte, and many modern architectures penalize unaligned field accesses
[INFO] [stdout]     = note: creating a misaligned reference is undefined behavior (even if that reference is never dereferenced)
[INFO] [stdout]     = help: copy the field contents to a local variable, or replace the reference with a raw pointer and use `read_unaligned`/`write_unaligned` (loads and stores via `*p` must be properly aligned even when using raw pointers)
[INFO] [stdout]     = note: this error originates in the macro `$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] warning: unused variable: `e`
[INFO] [stdout]    --> src/linux/operations/fiemap.rs:186:13
[INFO] [stdout]     |
[INFO] [stdout] 186 |     if let Err(e) = fiemap_result {
[INFO] [stdout]     |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/linux/operations/fiemap.rs:186:13
[INFO] [stdout]     |
[INFO] [stdout] 186 |     if let Err(e) = fiemap_result {
[INFO] [stdout]     |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/linux/operations/filesystem_info.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |     if let Err(e) = get_fs_info_result {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/linux/operations/filesystem_info.rs:31:13
[INFO] [stdout]    |
[INFO] [stdout] 31 |     if let Err(e) = get_fs_info_result {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/linux/operations/filesystem_info.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |     if let Err(e) = get_dev_info_result {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/linux/operations/filesystem_info.rs:80:13
[INFO] [stdout]    |
[INFO] [stdout] 80 |     if let Err(e) = get_dev_info_result {
[INFO] [stdout]    |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/linux/operations/space_info.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout] 134 |     if let Err(e) = get_space_args_real_result {
[INFO] [stdout]     |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/linux/operations/space_info.rs:134:13
[INFO] [stdout]     |
[INFO] [stdout] 134 |     if let Err(e) = get_space_args_real_result {
[INFO] [stdout]     |                ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 21 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0793`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 21 warnings emitted
[INFO] [stdout] 
[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 2 previous errors; 21 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `btrfs2` (lib test) due to 2 previous errors; 21 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "bfd4484ba2467521e41a776d9f5e9bae040923a1b1027a988f243da67f3de7cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfd4484ba2467521e41a776d9f5e9bae040923a1b1027a988f243da67f3de7cd", kill_on_drop: false }`
[INFO] [stdout] bfd4484ba2467521e41a776d9f5e9bae040923a1b1027a988f243da67f3de7cd
