[INFO] crate git_rs 0.1.0 is already in cache
[INFO] extracting crate git_rs 0.1.0 into work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/git_rs/0.1.0
[INFO] extracting crate git_rs 0.1.0 into work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/git_rs/0.1.0
[INFO] validating manifest of git_rs-0.1.0 on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of git_rs-0.1.0 on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing git_rs-0.1.0
[INFO] finished frobbing git_rs-0.1.0
[INFO] frobbed toml for git_rs-0.1.0 written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/reg/git_rs/0.1.0/Cargo.toml
[INFO] started frobbing git_rs-0.1.0
[INFO] finished frobbing git_rs-0.1.0
[INFO] frobbed toml for git_rs-0.1.0 written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/git_rs/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking git_rs-0.1.0 against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-1/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/reg/git_rs/0.1.0:/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" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 047fe1c74d34b0cc4854b97ed9c03c5335b2e04f82686742bd03bae566741875
[INFO] running `"docker" "start" "-a" "047fe1c74d34b0cc4854b97ed9c03c5335b2e04f82686742bd03bae566741875"`
[INFO] [stderr]     Checking git_rs v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/id.rs:21:10
[INFO] [stderr]    |
[INFO] [stderr] 21 |         0...9 => (inp + 48) as char,
[INFO] [stderr]    |          ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/id.rs:22:11
[INFO] [stderr]    |
[INFO] [stderr] 22 |         10...16 => (inp + 87) as char,
[INFO] [stderr]    |           ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/id.rs:45:20
[INFO] [stderr]    |
[INFO] [stderr] 45 |                 48 ... 57 => xs - 48,
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/id.rs:46:20
[INFO] [stderr]    |
[INFO] [stderr] 46 |                 97 ... 102 => xs - 97 + 10,
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/id.rs:47:20
[INFO] [stderr]    |
[INFO] [stderr] 47 |                 65 ... 70 => xs - 65 + 10,
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/stores/loose.rs:10:15
[INFO] [stderr]    |
[INFO] [stderr] 10 | type Reader = Fn(&Id) -> Result<Option<Box<std::io::Read>>> + Send + Sync;
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Id) -> Result<Option<Box<std::io::Read>>> + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/stores/loose.rs:10:44
[INFO] [stderr]    |
[INFO] [stderr] 10 | type Reader = Fn(&Id) -> Result<Option<Box<std::io::Read>>> + Send + Sync;
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/stores/loose.rs:19:47
[INFO] [stderr]    |
[INFO] [stderr] 19 |         where C: Fn(&Id) -> Result<Option<Box<std::io::Read>>> + 'static + Send + Sync {
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Read`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Cursor`
[INFO] [stderr]  --> src/pack/index.rs:4:16
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::{ Cursor, SeekFrom };
[INFO] [stderr]   |                ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/pack/index.rs:168:8
[INFO] [stderr]     |
[INFO] [stderr] 168 |     if (&magic != b"\xfftOc") {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/pack/index.rs:172:8
[INFO] [stderr]     |
[INFO] [stderr] 172 |     if (version != unsafe { std::mem::transmute::<u32, [u8; 4]>(2u32.to_be()) }) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/pack/any.rs:12:22
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub type GetObject = Fn(&Id) -> Result<Option<(Type, Box<std::io::Read>)>>;
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Id) -> Result<Option<(Type, Box<std::io::Read>)>>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/pack/any.rs:12:58
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub type GetObject = Fn(&Id) -> Result<Option<(Type, Box<std::io::Read>)>>;
[INFO] [stderr]    |                                                          ^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/pack/any.rs:15:15
[INFO] [stderr]    |
[INFO] [stderr] 15 |     read: Box<Fn() -> Result<R>>,
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> Result<R>`
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/pack/read.rs:35:10
[INFO] [stderr]    |
[INFO] [stderr] 35 |         0...4 => {
[INFO] [stderr]    |          ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/id.rs:21:10
[INFO] [stderr]    |
[INFO] [stderr] 21 |         0...9 => (inp + 48) as char,
[INFO] [stderr]    |          ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/id.rs:22:11
[INFO] [stderr]    |
[INFO] [stderr] 22 |         10...16 => (inp + 87) as char,
[INFO] [stderr]    |           ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/id.rs:45:20
[INFO] [stderr]    |
[INFO] [stderr] 45 |                 48 ... 57 => xs - 48,
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/id.rs:46:20
[INFO] [stderr]    |
[INFO] [stderr] 46 |                 97 ... 102 => xs - 97 + 10,
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/id.rs:47:20
[INFO] [stderr]    |
[INFO] [stderr] 47 |                 65 ... 70 => xs - 65 + 10,
[INFO] [stderr]    |                    ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/stores/loose.rs:10:15
[INFO] [stderr]    |
[INFO] [stderr] 10 | type Reader = Fn(&Id) -> Result<Option<Box<std::io::Read>>> + Send + Sync;
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Id) -> Result<Option<Box<std::io::Read>>> + Send + Sync`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/stores/loose.rs:10:44
[INFO] [stderr]    |
[INFO] [stderr] 10 | type Reader = Fn(&Id) -> Result<Option<Box<std::io::Read>>> + Send + Sync;
[INFO] [stderr]    |                                            ^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/stores/loose.rs:19:47
[INFO] [stderr]    |
[INFO] [stderr] 19 |         where C: Fn(&Id) -> Result<Option<Box<std::io::Read>>> + 'static + Send + Sync {
[INFO] [stderr]    |                                               ^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Read`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Cursor`
[INFO] [stderr]  --> src/pack/index.rs:4:16
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::io::{ Cursor, SeekFrom };
[INFO] [stderr]   |                ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/pack/index.rs:168:8
[INFO] [stderr]     |
[INFO] [stderr] 168 |     if (&magic != b"\xfftOc") {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/pack/index.rs:172:8
[INFO] [stderr]     |
[INFO] [stderr] 172 |     if (version != unsafe { std::mem::transmute::<u32, [u8; 4]>(2u32.to_be()) }) {
[INFO] [stderr]     |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/pack/any.rs:12:22
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub type GetObject = Fn(&Id) -> Result<Option<(Type, Box<std::io::Read>)>>;
[INFO] [stderr]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Id) -> Result<Option<(Type, Box<std::io::Read>)>>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/pack/any.rs:12:58
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub type GetObject = Fn(&Id) -> Result<Option<(Type, Box<std::io::Read>)>>;
[INFO] [stderr]    |                                                          ^^^^^^^^^^^^^ help: use `dyn`: `dyn std::io::Read`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/pack/any.rs:15:15
[INFO] [stderr]    |
[INFO] [stderr] 15 |     read: Box<Fn() -> Result<R>>,
[INFO] [stderr]    |               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn() -> Result<R>`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]   --> src/pack/iter.rs:99:20
[INFO] [stderr]    |
[INFO] [stderr] 99 |     use std::io::{ Read, Cursor };
[INFO] [stderr]    |                    ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/pack/read.rs:35:10
[INFO] [stderr]    |
[INFO] [stderr] 35 |         0...4 => {
[INFO] [stderr]    |          ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `id`
[INFO] [stderr]   --> src/stores/mod.rs:20:43
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn get<W: Write, S: Queryable>(&self, id: &Id, _output: &mut W, _backends: &StorageSet<S>) -> Result<Option<Type>> {
[INFO] [stderr]    |                                           ^^ help: consider prefixing with an underscore: `_id`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mode`
[INFO] [stderr]   --> src/stores/loose.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let mut mode = Mode::FindSpace;
[INFO] [stderr]    |                 ^^^^ help: consider prefixing with an underscore: `_mode`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `end`
[INFO] [stderr]   --> src/pack/any.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |         end: u64,
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_end`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `size` is assigned to, but never used
[INFO] [stderr]   --> src/pack/read.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut size = (byte[0] & 0xf) as u64;
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_size` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/stores/loose.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let mut mode = Mode::FindSpace;
[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: unused variable: `id`
[INFO] [stderr]   --> src/stores/mod.rs:20:43
[INFO] [stderr]    |
[INFO] [stderr] 20 |     fn get<W: Write, S: Queryable>(&self, id: &Id, _output: &mut W, _backends: &StorageSet<S>) -> Result<Option<Type>> {
[INFO] [stderr]    |                                           ^^ help: consider prefixing with an underscore: `_id`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `mode`
[INFO] [stderr]   --> src/stores/loose.rs:53:17
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let mut mode = Mode::FindSpace;
[INFO] [stderr]    |                 ^^^^ help: consider prefixing with an underscore: `_mode`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `end`
[INFO] [stderr]   --> src/pack/any.rs:32:9
[INFO] [stderr]    |
[INFO] [stderr] 32 |         end: u64,
[INFO] [stderr]    |         ^^^ help: consider prefixing with an underscore: `_end`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `size` is assigned to, but never used
[INFO] [stderr]   --> src/pack/read.rs:19:13
[INFO] [stderr]    |
[INFO] [stderr] 19 |     let mut size = (byte[0] & 0xf) as u64;
[INFO] [stderr]    |             ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_size` instead
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/stores/loose.rs:53:13
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let mut mode = Mode::FindSpace;
[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: variant is never constructed: `FindNull`
[INFO] [stderr]   --> src/stores/loose.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |             FindNull
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `crcs`
[INFO] [stderr]    --> src/pack/index.rs:237:5
[INFO] [stderr]     |
[INFO] [stderr] 237 |     crcs: Vec<u32>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `storage_set`
[INFO] [stderr]   --> src/pack/iter.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     storage_set: Option<&'a StorageSet<S>>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/stores/loose.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 55 |         reader.read_until(0x20, &mut type_vec);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/stores/loose.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 |         reader.read_until(0, &mut size_vec);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `FindNull`
[INFO] [stderr]   --> src/stores/loose.rs:51:13
[INFO] [stderr]    |
[INFO] [stderr] 51 |             FindNull
[INFO] [stderr]    |             ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `crcs`
[INFO] [stderr]    --> src/pack/index.rs:237:5
[INFO] [stderr]     |
[INFO] [stderr] 237 |     crcs: Vec<u32>,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `storage_set`
[INFO] [stderr]   --> src/pack/iter.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     storage_set: Option<&'a StorageSet<S>>
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/stores/loose.rs:55:9
[INFO] [stderr]    |
[INFO] [stderr] 55 |         reader.read_until(0x20, &mut type_vec);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/stores/loose.rs:56:9
[INFO] [stderr]    |
[INFO] [stderr] 56 |         reader.read_until(0, &mut size_vec);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/index_pack.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     write(cursor, &mut io::stdout(), Some(&storage_set));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/bin/index_pack.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     write(cursor, &mut io::stdout(), Some(&storage_set));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.56s
[INFO] running `"docker" "inspect" "047fe1c74d34b0cc4854b97ed9c03c5335b2e04f82686742bd03bae566741875"`
[INFO] running `"docker" "rm" "-f" "047fe1c74d34b0cc4854b97ed9c03c5335b2e04f82686742bd03bae566741875"`
[INFO] [stdout] 047fe1c74d34b0cc4854b97ed9c03c5335b2e04f82686742bd03bae566741875