[INFO] updating cached repository google/hat-backup
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/google/hat-backup
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/google/hat-backup" "work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/google/hat-backup"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/google/hat-backup'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/google/hat-backup" "work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/google/hat-backup"`
[INFO] [stderr] Cloning into 'work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/google/hat-backup'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6a6cffd546a41104f68bf0a402a1dfcd336b2558
[INFO] sha for GitHub repo google/hat-backup: 6a6cffd546a41104f68bf0a402a1dfcd336b2558
[INFO] validating manifest of google/hat-backup on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of google/hat-backup on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing google/hat-backup
[INFO] finished frobbing google/hat-backup
[INFO] frobbed toml for google/hat-backup written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/gh/google/hat-backup/Cargo.toml
[INFO] started frobbing google/hat-backup
[INFO] finished frobbing google/hat-backup
[INFO] frobbed toml for google/hat-backup written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/google/hat-backup/Cargo.toml
[INFO] crate google/hat-backup already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking google/hat-backup against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-4/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/gh/google/hat-backup:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 8c56fa8726f9f3b4e3f57f28e52b438d9f83de52634abcbd04d2c4b3e0a69e1d
[INFO] running `"docker" "start" "-a" "8c56fa8726f9f3b4e3f57f28e52b438d9f83de52634abcbd04d2c4b3e0a69e1d"`
[INFO] [stderr]    Compiling libc v0.2.26
[INFO] [stderr]     Checking error-type v0.1.2
[INFO] [stderr]    Compiling num-integer v0.1.35
[INFO] [stderr]    Compiling libsodium-sys v0.0.15
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking secstr v0.3.0
[INFO] [stderr]     Checking filetime v0.1.10
[INFO] [stderr]    Compiling capnp v0.8.10
[INFO] [stderr]     Checking blake2-rfc v0.2.17
[INFO] [stderr]     Checking scoped-pool v1.0.0
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.34
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking chrono v0.4.0
[INFO] [stderr]     Checking argon2rs v0.2.5
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]    Compiling capnpc v0.8.5
[INFO] [stderr]    Compiling time v0.1.38
[INFO] [stderr]    Compiling num v0.1.40
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]    Compiling diesel v0.14.1
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking quickcheck v0.4.1
[INFO] [stderr]    Compiling hat-backup v0.0.1-pre (/opt/crater/workdir)
[INFO] [stderr]    Compiling diesel_infer_schema v0.14.0
[INFO] [stderr]    Compiling diesel_codegen v0.14.0
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/blob/mod.rs:72:25
[INFO] [stderr]    |
[INFO] [stderr] 72 |     blob_refs: Vec<(Box<FnBox<(), ()>>)>,
[INFO] [stderr]    |                         ^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox<(), ()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/blob/mod.rs:134:23
[INFO] [stderr]     |
[INFO] [stderr] 134 |         callback: Box<FnBox<(), ()>>,
[INFO] [stderr]     |                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox<(), ()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/blob/mod.rs:266:23
[INFO] [stderr]     |
[INFO] [stderr] 266 |         callback: Box<FnBox<(), ()>>,
[INFO] [stderr]     |                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox<(), ()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:26:19
[INFO] [stderr]    |
[INFO] [stderr] 26 |         (self as &fmt::Debug).fmt(f)
[INFO] [stderr]    |                   ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/hat/family.rs:310:54
[INFO] [stderr]     |
[INFO] [stderr] 310 |             Some(Box::new(move |()| contents) as Box<FnBox<(), _>>)
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox<(), _>`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]   --> src/hat/insert_path_handler.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use std::str;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/hat/insert_path_handler.rs:34:78
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn new(full_path: PathBuf, parent: Option<u64>) -> Result<FileEntry, Box<Error>> {
[INFO] [stderr]    |                                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]    --> src/key/index.rs:444:25
[INFO] [stderr]     |
[INFO] [stderr] 444 |         ) as i64))).set((tag.eq(Tag::Reserved as i64)))
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/key/mod.rs:87:30
[INFO] [stderr]    |
[INFO] [stderr] 87 |     Insert(Entry, Option<Box<FnBox<(), Option<IT>>>>),
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox<(), Option<IT>>`
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/blob/mod.rs:48:1
[INFO] [stderr]    |
[INFO] [stderr] 48 | / error_type! {
[INFO] [stderr] 49 | |     #[derive(Debug)]
[INFO] [stderr] 50 | |     pub enum BlobError {
[INFO] [stderr] 51 | |         Message(Cow<'static, str>) {
[INFO] [stderr] ...  |
[INFO] [stderr] 62 | |     }
[INFO] [stderr] 63 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/blob/mod.rs:48:1
[INFO] [stderr]    |
[INFO] [stderr] 48 | / error_type! {
[INFO] [stderr] 49 | |     #[derive(Debug)]
[INFO] [stderr] 50 | |     pub enum BlobError {
[INFO] [stderr] 51 | |         Message(Cow<'static, str>) {
[INFO] [stderr] ...  |
[INFO] [stderr] 62 | |     }
[INFO] [stderr] 63 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/errors.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     error_type! {
[INFO] [stderr] 47 | |         #[derive(Debug)]
[INFO] [stderr] 48 | |         pub enum HatError {
[INFO] [stderr] 49 | |             Recv(mpsc::RecvError) {
[INFO] [stderr] ...  |
[INFO] [stderr] 75 | |         }
[INFO] [stderr] 76 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/errors.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     error_type! {
[INFO] [stderr] 47 | |         #[derive(Debug)]
[INFO] [stderr] 48 | |         pub enum HatError {
[INFO] [stderr] 49 | |             Recv(mpsc::RecvError) {
[INFO] [stderr] ...  |
[INFO] [stderr] 75 | |         }
[INFO] [stderr] 76 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/errors.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     error_type! {
[INFO] [stderr] 47 | |         #[derive(Debug)]
[INFO] [stderr] 48 | |         pub enum HatError {
[INFO] [stderr] 49 | |             Recv(mpsc::RecvError) {
[INFO] [stderr] ...  |
[INFO] [stderr] 75 | |         }
[INFO] [stderr] 76 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/errors.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     error_type! {
[INFO] [stderr] 47 | |         #[derive(Debug)]
[INFO] [stderr] 48 | |         pub enum HatError {
[INFO] [stderr] 49 | |             Recv(mpsc::RecvError) {
[INFO] [stderr] ...  |
[INFO] [stderr] 75 | |         }
[INFO] [stderr] 76 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/errors.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     error_type! {
[INFO] [stderr] 47 | |         #[derive(Debug)]
[INFO] [stderr] 48 | |         pub enum HatError {
[INFO] [stderr] 49 | |             Recv(mpsc::RecvError) {
[INFO] [stderr] ...  |
[INFO] [stderr] 75 | |         }
[INFO] [stderr] 76 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/errors.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     error_type! {
[INFO] [stderr] 47 | |         #[derive(Debug)]
[INFO] [stderr] 48 | |         pub enum HatError {
[INFO] [stderr] 49 | |             Recv(mpsc::RecvError) {
[INFO] [stderr] ...  |
[INFO] [stderr] 75 | |         }
[INFO] [stderr] 76 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/errors.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     error_type! {
[INFO] [stderr] 47 | |         #[derive(Debug)]
[INFO] [stderr] 48 | |         pub enum HatError {
[INFO] [stderr] 49 | |             Recv(mpsc::RecvError) {
[INFO] [stderr] ...  |
[INFO] [stderr] 75 | |         }
[INFO] [stderr] 76 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]    --> src/errors.rs:88:5
[INFO] [stderr]     |
[INFO] [stderr] 88  | /     error_type! {
[INFO] [stderr] 89  | |         #[derive(Debug)]
[INFO] [stderr] 90  | |         pub enum DieselError {
[INFO] [stderr] 91  | |             SqlConnection(diesel::ConnectionError) {
[INFO] [stderr] ...   |
[INFO] [stderr] 103 | |         }
[INFO] [stderr] 104 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]    --> src/errors.rs:88:5
[INFO] [stderr]     |
[INFO] [stderr] 88  | /     error_type! {
[INFO] [stderr] 89  | |         #[derive(Debug)]
[INFO] [stderr] 90  | |         pub enum DieselError {
[INFO] [stderr] 91  | |             SqlConnection(diesel::ConnectionError) {
[INFO] [stderr] ...   |
[INFO] [stderr] 103 | |         }
[INFO] [stderr] 104 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]    --> src/errors.rs:88:5
[INFO] [stderr]     |
[INFO] [stderr] 88  | /     error_type! {
[INFO] [stderr] 89  | |         #[derive(Debug)]
[INFO] [stderr] 90  | |         pub enum DieselError {
[INFO] [stderr] 91  | |             SqlConnection(diesel::ConnectionError) {
[INFO] [stderr] ...   |
[INFO] [stderr] 103 | |         }
[INFO] [stderr] 104 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]    --> src/errors.rs:88:5
[INFO] [stderr]     |
[INFO] [stderr] 88  | /     error_type! {
[INFO] [stderr] 89  | |         #[derive(Debug)]
[INFO] [stderr] 90  | |         pub enum DieselError {
[INFO] [stderr] 91  | |             SqlConnection(diesel::ConnectionError) {
[INFO] [stderr] ...   |
[INFO] [stderr] 103 | |         }
[INFO] [stderr] 104 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/key/mod.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | / error_type! {
[INFO] [stderr] 44 | |     #[derive(Debug)]
[INFO] [stderr] 45 | |     pub enum MsgError {
[INFO] [stderr] 46 | |         Message(Cow<'static, str>) {
[INFO] [stderr] ...  |
[INFO] [stderr] 60 | |      }
[INFO] [stderr] 61 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/key/mod.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | / error_type! {
[INFO] [stderr] 44 | |     #[derive(Debug)]
[INFO] [stderr] 45 | |     pub enum MsgError {
[INFO] [stderr] 46 | |         Message(Cow<'static, str>) {
[INFO] [stderr] ...  |
[INFO] [stderr] 60 | |      }
[INFO] [stderr] 61 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/key/mod.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | / error_type! {
[INFO] [stderr] 44 | |     #[derive(Debug)]
[INFO] [stderr] 45 | |     pub enum MsgError {
[INFO] [stderr] 46 | |         Message(Cow<'static, str>) {
[INFO] [stderr] ...  |
[INFO] [stderr] 60 | |      }
[INFO] [stderr] 61 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/blob/mod.rs:72:25
[INFO] [stderr]    |
[INFO] [stderr] 72 |     blob_refs: Vec<(Box<FnBox<(), ()>>)>,
[INFO] [stderr]    |                         ^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox<(), ()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/blob/mod.rs:134:23
[INFO] [stderr]     |
[INFO] [stderr] 134 |         callback: Box<FnBox<(), ()>>,
[INFO] [stderr]     |                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox<(), ()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/blob/mod.rs:266:23
[INFO] [stderr]     |
[INFO] [stderr] 266 |         callback: Box<FnBox<(), ()>>,
[INFO] [stderr]     |                       ^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox<(), ()>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/errors.rs:26:19
[INFO] [stderr]    |
[INFO] [stderr] 26 |         (self as &fmt::Debug).fmt(f)
[INFO] [stderr]    |                   ^^^^^^^^^^ help: use `dyn`: `dyn fmt::Debug`
[INFO] [stderr] 
[INFO] [stderr]    |
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/hat/family.rs:310:54
[INFO] [stderr]     |
[INFO] [stderr] 310 |             Some(Box::new(move |()| contents) as Box<FnBox<(), _>>)
[INFO] [stderr]     |                                                      ^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox<(), _>`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::str`
[INFO] [stderr]   --> src/hat/insert_path_handler.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 22 | use std::str;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/hat/insert_path_handler.rs:34:78
[INFO] [stderr]    |
[INFO] [stderr] 34 |     fn new(full_path: PathBuf, parent: Option<u64>) -> Result<FileEntry, Box<Error>> {
[INFO] [stderr]    |                                                                              ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr] 
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around method argument
[INFO] [stderr]    --> src/key/index.rs:444:25
[INFO] [stderr]     |
[INFO] [stderr] 444 |         ) as i64))).set((tag.eq(Tag::Reserved as i64)))
[INFO] [stderr]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/key/mod.rs:87:30
[INFO] [stderr]    |
[INFO] [stderr] 87 |     Insert(Entry, Option<Box<FnBox<(), Option<IT>>>>),
[INFO] [stderr]    |                              ^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox<(), Option<IT>>`
[INFO] [stderr] 
[INFO] [stderr] warning: the item `crypto` is imported redundantly
[INFO] [stderr]    --> src/key/mod.rs:144:13
[INFO] [stderr]     |
[INFO] [stderr] 20  | use crypto;
[INFO] [stderr]     |     ------ the item `crypto` is already imported here
[INFO] [stderr] ...
[INFO] [stderr] 144 |         use crypto;
[INFO] [stderr]     |             ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/blob/mod.rs:48:1
[INFO] [stderr]    |
[INFO] [stderr] 48 | / error_type! {
[INFO] [stderr] 49 | |     #[derive(Debug)]
[INFO] [stderr] 50 | |     pub enum BlobError {
[INFO] [stderr] 51 | |         Message(Cow<'static, str>) {
[INFO] [stderr] ...  |
[INFO] [stderr] 62 | |     }
[INFO] [stderr] 63 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/blob/mod.rs:48:1
[INFO] [stderr]    |
[INFO] [stderr] 48 | / error_type! {
[INFO] [stderr] 49 | |     #[derive(Debug)]
[INFO] [stderr] 50 | |     pub enum BlobError {
[INFO] [stderr] 51 | |         Message(Cow<'static, str>) {
[INFO] [stderr] ...  |
[INFO] [stderr] 62 | |     }
[INFO] [stderr] 63 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/errors.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     error_type! {
[INFO] [stderr] 47 | |         #[derive(Debug)]
[INFO] [stderr] 48 | |         pub enum HatError {
[INFO] [stderr] 49 | |             Recv(mpsc::RecvError) {
[INFO] [stderr] ...  |
[INFO] [stderr] 75 | |         }
[INFO] [stderr] 76 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/errors.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     error_type! {
[INFO] [stderr] 47 | |         #[derive(Debug)]
[INFO] [stderr] 48 | |         pub enum HatError {
[INFO] [stderr] 49 | |             Recv(mpsc::RecvError) {
[INFO] [stderr] ...  |
[INFO] [stderr] 75 | |         }
[INFO] [stderr] 76 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/errors.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     error_type! {
[INFO] [stderr] 47 | |         #[derive(Debug)]
[INFO] [stderr] 48 | |         pub enum HatError {
[INFO] [stderr] 49 | |             Recv(mpsc::RecvError) {
[INFO] [stderr] ...  |
[INFO] [stderr] 75 | |         }
[INFO] [stderr] 76 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/errors.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     error_type! {
[INFO] [stderr] 47 | |         #[derive(Debug)]
[INFO] [stderr] 48 | |         pub enum HatError {
[INFO] [stderr] 49 | |             Recv(mpsc::RecvError) {
[INFO] [stderr] ...  |
[INFO] [stderr] 75 | |         }
[INFO] [stderr] 76 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/errors.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     error_type! {
[INFO] [stderr] 47 | |         #[derive(Debug)]
[INFO] [stderr] 48 | |         pub enum HatError {
[INFO] [stderr] 49 | |             Recv(mpsc::RecvError) {
[INFO] [stderr] ...  |
[INFO] [stderr] 75 | |         }
[INFO] [stderr] 76 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/errors.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     error_type! {
[INFO] [stderr] 47 | |         #[derive(Debug)]
[INFO] [stderr] 48 | |         pub enum HatError {
[INFO] [stderr] 49 | |             Recv(mpsc::RecvError) {
[INFO] [stderr] ...  |
[INFO] [stderr] 75 | |         }
[INFO] [stderr] 76 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/errors.rs:46:5
[INFO] [stderr]    |
[INFO] [stderr] 46 | /     error_type! {
[INFO] [stderr] 47 | |         #[derive(Debug)]
[INFO] [stderr] 48 | |         pub enum HatError {
[INFO] [stderr] 49 | |             Recv(mpsc::RecvError) {
[INFO] [stderr] ...  |
[INFO] [stderr] 75 | |         }
[INFO] [stderr] 76 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]    --> src/errors.rs:88:5
[INFO] [stderr]     |
[INFO] [stderr] 88  | /     error_type! {
[INFO] [stderr] 89  | |         #[derive(Debug)]
[INFO] [stderr] 90  | |         pub enum DieselError {
[INFO] [stderr] 91  | |             SqlConnection(diesel::ConnectionError) {
[INFO] [stderr] ...   |
[INFO] [stderr] 103 | |         }
[INFO] [stderr] 104 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]    --> src/errors.rs:88:5
[INFO] [stderr]     |
[INFO] [stderr] 88  | /     error_type! {
[INFO] [stderr] 89  | |         #[derive(Debug)]
[INFO] [stderr] 90  | |         pub enum DieselError {
[INFO] [stderr] 91  | |             SqlConnection(diesel::ConnectionError) {
[INFO] [stderr] ...   |
[INFO] [stderr] 103 | |         }
[INFO] [stderr] 104 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]    --> src/errors.rs:88:5
[INFO] [stderr]     |
[INFO] [stderr] 88  | /     error_type! {
[INFO] [stderr] 89  | |         #[derive(Debug)]
[INFO] [stderr] 90  | |         pub enum DieselError {
[INFO] [stderr] 91  | |             SqlConnection(diesel::ConnectionError) {
[INFO] [stderr] ...   |
[INFO] [stderr] 103 | |         }
[INFO] [stderr] 104 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]    --> src/errors.rs:88:5
[INFO] [stderr]     |
[INFO] [stderr] 88  | /     error_type! {
[INFO] [stderr] 89  | |         #[derive(Debug)]
[INFO] [stderr] 90  | |         pub enum DieselError {
[INFO] [stderr] 91  | |             SqlConnection(diesel::ConnectionError) {
[INFO] [stderr] ...   |
[INFO] [stderr] 103 | |         }
[INFO] [stderr] 104 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/key/mod.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | / error_type! {
[INFO] [stderr] 44 | |     #[derive(Debug)]
[INFO] [stderr] 45 | |     pub enum MsgError {
[INFO] [stderr] 46 | |         Message(Cow<'static, str>) {
[INFO] [stderr] ...  |
[INFO] [stderr] 60 | |      }
[INFO] [stderr] 61 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/key/mod.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | / error_type! {
[INFO] [stderr] 44 | |     #[derive(Debug)]
[INFO] [stderr] 45 | |     pub enum MsgError {
[INFO] [stderr] 46 | |         Message(Cow<'static, str>) {
[INFO] [stderr] ...  |
[INFO] [stderr] 60 | |      }
[INFO] [stderr] 61 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::error::Error::cause': replaced by Error::source, which can support downcasting
[INFO] [stderr]   --> src/key/mod.rs:43:1
[INFO] [stderr]    |
[INFO] [stderr] 43 | / error_type! {
[INFO] [stderr] 44 | |     #[derive(Debug)]
[INFO] [stderr] 45 | |     pub enum MsgError {
[INFO] [stderr] 46 | |         Message(Cow<'static, str>) {
[INFO] [stderr] ...  |
[INFO] [stderr] 60 | |      }
[INFO] [stderr] 61 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/hash/mod.rs:135:9
[INFO] [stderr]     |
[INFO] [stderr] 135 |         mut queue: &mut MutexGuard<Queue>,
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/hash/mod.rs:136:9
[INFO] [stderr]     |
[INFO] [stderr] 136 |         mut index: &mut db::IndexGuard,
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/hash/mod.rs:168:59
[INFO] [stderr]     |
[INFO] [stderr] 168 |     fn update_reserved(&self, id: u64, hash_entry: Entry, mut queue: &mut MutexGuard<Queue>) {
[INFO] [stderr]     |                                                           ----^^^^^
[INFO] [stderr]     |                                                           |
[INFO] [stderr]     |                                                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/hash/mod.rs:196:9
[INFO] [stderr]     |
[INFO] [stderr] 196 |         mut queue: &mut MutexGuard<Queue>,
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/hash/mod.rs:197:9
[INFO] [stderr]     |
[INFO] [stderr] 197 |         mut index: &mut db::IndexGuard,
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/hat/family.rs:171:33
[INFO] [stderr]     |
[INFO] [stderr] 171 | fn parse_dir_data(chunk: &[u8], mut out: &mut Vec<walker::FileEntry>) -> Result<(), HatError> {
[INFO] [stderr]     |                                 ----^^^
[INFO] [stderr]     |                                 |
[INFO] [stderr]     |                                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/hat/walker.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 82 |         mut file_v: &mut FV,
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/hat/walker.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 |         mut dir_v: &mut DV,
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/hat/walker.rs:100:9
[INFO] [stderr]     |
[INFO] [stderr] 100 |         mut file_v: &mut FV,
[INFO] [stderr]     |         ----^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/hat/walker.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |         mut dir_v: &mut DV,
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/blob/tests.rs:325:9
[INFO] [stderr]     |
[INFO] [stderr] 325 |         mut bytes: &mut [u8],
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/hash/mod.rs:135:9
[INFO] [stderr]     |
[INFO] [stderr] 135 |         mut queue: &mut MutexGuard<Queue>,
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/hash/mod.rs:136:9
[INFO] [stderr]     |
[INFO] [stderr] 136 |         mut index: &mut db::IndexGuard,
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/hash/mod.rs:168:59
[INFO] [stderr]     |
[INFO] [stderr] 168 |     fn update_reserved(&self, id: u64, hash_entry: Entry, mut queue: &mut MutexGuard<Queue>) {
[INFO] [stderr]     |                                                           ----^^^^^
[INFO] [stderr]     |                                                           |
[INFO] [stderr]     |                                                           help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/hash/mod.rs:196:9
[INFO] [stderr]     |
[INFO] [stderr] 196 |         mut queue: &mut MutexGuard<Queue>,
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/hash/mod.rs:197:9
[INFO] [stderr]     |
[INFO] [stderr] 197 |         mut index: &mut db::IndexGuard,
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/hat/family.rs:171:33
[INFO] [stderr]     |
[INFO] [stderr] 171 | fn parse_dir_data(chunk: &[u8], mut out: &mut Vec<walker::FileEntry>) -> Result<(), HatError> {
[INFO] [stderr]     |                                 ----^^^
[INFO] [stderr]     |                                 |
[INFO] [stderr]     |                                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/hat/walker.rs:82:9
[INFO] [stderr]    |
[INFO] [stderr] 82 |         mut file_v: &mut FV,
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/hat/walker.rs:83:9
[INFO] [stderr]    |
[INFO] [stderr] 83 |         mut dir_v: &mut DV,
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/hat/walker.rs:100:9
[INFO] [stderr]     |
[INFO] [stderr] 100 |         mut file_v: &mut FV,
[INFO] [stderr]     |         ----^^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/hat/walker.rs:101:9
[INFO] [stderr]     |
[INFO] [stderr] 101 |         mut dir_v: &mut DV,
[INFO] [stderr]     |         ----^^^^^
[INFO] [stderr]     |         |
[INFO] [stderr]     |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 58.29s
[INFO] running `"docker" "inspect" "8c56fa8726f9f3b4e3f57f28e52b438d9f83de52634abcbd04d2c4b3e0a69e1d"`
[INFO] running `"docker" "rm" "-f" "8c56fa8726f9f3b4e3f57f28e52b438d9f83de52634abcbd04d2c4b3e0a69e1d"`
[INFO] [stdout] 8c56fa8726f9f3b4e3f57f28e52b438d9f83de52634abcbd04d2c4b3e0a69e1d