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289ba63a7045a09d82a7e0fd4abd834cb7ac81c3df99dd1ea374af8cc68fddea [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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b56aaec52bc0fa35591a872fb4aac81f606e265c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 748237d42f308f2bc2894720bf705da79c68c845781304e16b2530c493d07a78 [INFO] running `Command { std: "docker" "start" "-a" "748237d42f308f2bc2894720bf705da79c68c845781304e16b2530c493d07a78", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Compiling proc-macro2 v1.0.7 [INFO] [stderr] Compiling serde v1.0.104 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.13 [INFO] [stderr] Compiling ryu v1.0.2 [INFO] [stderr] Compiling memchr v2.3.0 [INFO] [stderr] Compiling slog v2.5.2 [INFO] [stderr] Checking scopeguard v1.0.0 [INFO] [stderr] 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Checking rand_os v0.2.2 [INFO] [stderr] Checking rand_xoshiro v0.3.1 [INFO] [stderr] Checking chrono v0.4.10 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking rayon v1.3.0 [INFO] [stderr] Checking slog-term v2.5.0 [INFO] [stderr] Checking serde_json v1.0.44 [INFO] [stderr] Checking bstr v0.2.9 [INFO] [stderr] Compiling serde_derive v1.0.104 [INFO] [stderr] Compiling num-derive v0.3.0 [INFO] [stderr] Checking csv v1.1.2 [INFO] [stderr] Checking tinytemplate v1.0.3 [INFO] [stderr] Checking wickdb v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `Slice` is never constructed [INFO] [stdout] --> src/util/slice.rs:31:12 [INFO] [stdout] | [INFO] [stdout] 31 | pub struct Slice { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `as_slice`, `is_empty`, `compare`, and `as_str` are never used [INFO] [stdout] --> src/util/slice.rs:37:12 [INFO] [stdout] | [INFO] [stdout] 36 | impl Slice { [INFO] [stdout] | ---------- associated items in this implementation [INFO] [stdout] 37 | pub fn new(data: *const u8, size: usize) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 42 | pub fn as_slice(&self) -> &[u8] { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 51 | pub fn is_empty(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 56 | pub fn compare(&self, other: &Slice) -> Ordering { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 61 | pub fn as_str(&self) -> &str { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `micros`, `bytes_read`, and `bytes_written` are never read [INFO] [stdout] --> src/compaction.rs:371:9 [INFO] [stdout] | [INFO] [stdout] 369 | pub struct CompactionStats { [INFO] [stdout] | --------------- fields in this struct [INFO] [stdout] 370 | // The microseconds this compaction takes [INFO] [stdout] 371 | pub micros: u64, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 372 | /// The data size read by this compaction [INFO] [stdout] 373 | pub bytes_read: u64, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 374 | /// The data size created in new generated SSTables [INFO] [stdout] 375 | pub bytes_written: u64, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `CompactionStats` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary transmute [INFO] [stdout] --> src/util/coding.rs:33:21 [INFO] [stdout] | [INFO] [stdout] 33 | let bytes = transmute::(value.to_le()); [INFO] [stdout] | -------------------------^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: replace this with: `u32::to_ne_bytes` [INFO] [stdout] | [INFO] [stdout] = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order [INFO] [stdout] = note: `#[warn(unnecessary_transmutes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary transmute [INFO] [stdout] --> src/util/coding.rs:50:21 [INFO] [stdout] | [INFO] [stdout] 50 | let bytes = transmute::(value.to_le()); [INFO] [stdout] | -------------------------^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: replace this with: `u64::to_ne_bytes` [INFO] [stdout] | [INFO] [stdout] = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `finish` that must be used [INFO] [stdout] --> src/util/slice.rs:107:9 [INFO] [stdout] | [INFO] [stdout] 107 | state.finish(); [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 107 | let _ = state.finish(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::slice::Iter` that must be used [INFO] [stdout] --> src/compaction.rs:57:9 [INFO] [stdout] | [INFO] [stdout] 57 | self.base.iter(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: iterators are lazy and do nothing unless consumed [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 57 | let _ = self.base.iter(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/db/mod.rs:900:28 [INFO] [stdout] | [INFO] [stdout] 900 | fn make_room_for_write(&self, mut force: bool) -> Result>> { [INFO] [stdout] | ^^^^^ the lifetime is elided here ---------------------------- the same lifetime is hidden here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 900 | fn make_room_for_write(&self, mut force: bool) -> Result>> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/db/mod.rs:1185:22 [INFO] [stdout] | [INFO] [stdout] 1185 | fn do_compaction(&self, mut c: Compaction) -> Result>> { [INFO] [stdout] | ^^^^^ the lifetime is elided here ---------------------------- the same lifetime is hidden here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 1185 | fn do_compaction(&self, mut c: Compaction) -> Result>> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/db/format.rs:78:39 [INFO] [stdout] | [INFO] [stdout] 78 | pub fn decode_from(internal_key: &'a [u8]) -> Option> { [INFO] [stdout] | ^^ the lifetime is named here -- the same lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 78 - pub fn decode_from(internal_key: &'a [u8]) -> Option> { [INFO] [stdout] 78 + pub fn decode_from(internal_key: &'a [u8]) -> Option> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/db/format.rs:96:22 [INFO] [stdout] | [INFO] [stdout] 96 | pub fn new(key: &'a [u8], seq: u64, v_type: ValueType) -> ParsedInternalKey<'_> { [INFO] [stdout] | ^^ the lifetime is named here -- the same lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 96 - pub fn new(key: &'a [u8], seq: u64, v_type: ValueType) -> ParsedInternalKey<'_> { [INFO] [stdout] 96 + pub fn new(key: &'a [u8], seq: u64, v_type: ValueType) -> ParsedInternalKey<'a> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Option::::map_or` that must be used [INFO] [stdout] --> src/iterator.rs:234:9 [INFO] [stdout] | [INFO] [stdout] 234 | self.derived.as_mut().map_or((), |di| di.next()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the returned value, use `if let` instead [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 234 | let _ = self.derived.as_mut().map_or((), |di| di.next()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Option::::map_or` that must be used [INFO] [stdout] --> src/iterator.rs:240:9 [INFO] [stdout] | [INFO] [stdout] 240 | self.derived.as_mut().map_or((), |di| di.prev()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the returned value, use `if let` instead [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 240 | let _ = self.derived.as_mut().map_or((), |di| di.prev()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item [INFO] [stdout] --> src/options.rs:33:30 [INFO] [stdout] | [INFO] [stdout] 33 | #[derive(Clone, Copy, Debug, FromPrimitive)] [INFO] [stdout] | ^------------ [INFO] [stdout] | | [INFO] [stdout] | `FromPrimitive` is not local [INFO] [stdout] | move the `impl` block outside of this constant `_IMPL_NUM_FromPrimitive_FOR_CompressionType` [INFO] [stdout] 34 | pub enum CompressionType { [INFO] [stdout] | --------------- `CompressionType` is not local [INFO] [stdout] | [INFO] [stdout] = note: the derive macro `FromPrimitive` defines the non-local `impl`, and may need to be changed [INFO] [stdout] = note: the derive macro `FromPrimitive` may come from an old version of the `num_derive` crate, try updating your dependency with `cargo update -p num_derive` [INFO] [stdout] = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl` [INFO] [stdout] = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint [INFO] [stdout] = note: `#[warn(non_local_definitions)]` on by default [INFO] [stdout] = note: this warning originates in the derive macro `FromPrimitive` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking criterion v0.3.0 [INFO] [stdout] warning: struct `Slice` is never constructed [INFO] [stdout] --> src/util/slice.rs:31:12 [INFO] [stdout] | [INFO] [stdout] 31 | pub struct Slice { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `as_slice`, `is_empty`, `compare`, and `as_str` are never used [INFO] [stdout] --> src/util/slice.rs:37:12 [INFO] [stdout] | [INFO] [stdout] 36 | impl Slice { [INFO] [stdout] | ---------- associated items in this implementation [INFO] [stdout] 37 | pub fn new(data: *const u8, size: usize) -> Self { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 42 | pub fn as_slice(&self) -> &[u8] { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 51 | pub fn is_empty(&self) -> bool { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 56 | pub fn compare(&self, other: &Slice) -> Ordering { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 61 | pub fn as_str(&self) -> &str { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `micros`, `bytes_read`, and `bytes_written` are never read [INFO] [stdout] --> src/compaction.rs:371:9 [INFO] [stdout] | [INFO] [stdout] 369 | pub struct CompactionStats { [INFO] [stdout] | --------------- fields in this struct [INFO] [stdout] 370 | // The microseconds this compaction takes [INFO] [stdout] 371 | pub micros: u64, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 372 | /// The data size read by this compaction [INFO] [stdout] 373 | pub bytes_read: u64, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] 374 | /// The data size created in new generated SSTables [INFO] [stdout] 375 | pub bytes_written: u64, [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `CompactionStats` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary transmute [INFO] [stdout] --> src/util/coding.rs:33:21 [INFO] [stdout] | [INFO] [stdout] 33 | let bytes = transmute::(value.to_le()); [INFO] [stdout] | -------------------------^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: replace this with: `u32::to_ne_bytes` [INFO] [stdout] | [INFO] [stdout] = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order [INFO] [stdout] = note: `#[warn(unnecessary_transmutes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unnecessary transmute [INFO] [stdout] --> src/util/coding.rs:50:21 [INFO] [stdout] | [INFO] [stdout] 50 | let bytes = transmute::(value.to_le()); [INFO] [stdout] | -------------------------^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: replace this with: `u64::to_ne_bytes` [INFO] [stdout] | [INFO] [stdout] = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `finish` that must be used [INFO] [stdout] --> src/util/slice.rs:107:9 [INFO] [stdout] | [INFO] [stdout] 107 | state.finish(); [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 107 | let _ = state.finish(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::slice::Iter` that must be used [INFO] [stdout] --> src/compaction.rs:57:9 [INFO] [stdout] | [INFO] [stdout] 57 | self.base.iter(); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: iterators are lazy and do nothing unless consumed [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 57 | let _ = self.base.iter(); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/db/mod.rs:900:28 [INFO] [stdout] | [INFO] [stdout] 900 | fn make_room_for_write(&self, mut force: bool) -> Result>> { [INFO] [stdout] | ^^^^^ the lifetime is elided here ---------------------------- the same lifetime is hidden here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 900 | fn make_room_for_write(&self, mut force: bool) -> Result>> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/db/mod.rs:1185:22 [INFO] [stdout] | [INFO] [stdout] 1185 | fn do_compaction(&self, mut c: Compaction) -> Result>> { [INFO] [stdout] | ^^^^^ the lifetime is elided here ---------------------------- the same lifetime is hidden here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 1185 | fn do_compaction(&self, mut c: Compaction) -> Result>> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/db/format.rs:78:39 [INFO] [stdout] | [INFO] [stdout] 78 | pub fn decode_from(internal_key: &'a [u8]) -> Option> { [INFO] [stdout] | ^^ the lifetime is named here -- the same lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 78 - pub fn decode_from(internal_key: &'a [u8]) -> Option> { [INFO] [stdout] 78 + pub fn decode_from(internal_key: &'a [u8]) -> Option> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing [INFO] [stdout] --> src/db/format.rs:96:22 [INFO] [stdout] | [INFO] [stdout] 96 | pub fn new(key: &'a [u8], seq: u64, v_type: ValueType) -> ParsedInternalKey<'_> { [INFO] [stdout] | ^^ the lifetime is named here -- the same lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: consistently use `'a` [INFO] [stdout] | [INFO] [stdout] 96 - pub fn new(key: &'a [u8], seq: u64, v_type: ValueType) -> ParsedInternalKey<'_> { [INFO] [stdout] 96 + pub fn new(key: &'a [u8], seq: u64, v_type: ValueType) -> ParsedInternalKey<'a> { [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item [INFO] [stdout] --> src/db/mod.rs:1524:34 [INFO] [stdout] | [INFO] [stdout] 1524 | #[derive(Debug, Clone, Copy, FromPrimitive)] [INFO] [stdout] | ^------------ [INFO] [stdout] | | [INFO] [stdout] | `FromPrimitive` is not local [INFO] [stdout] | move the `impl` block outside of this constant `_IMPL_NUM_FromPrimitive_FOR_TestOption` [INFO] [stdout] 1525 | enum TestOption { [INFO] [stdout] | ---------- `TestOption` is not local [INFO] [stdout] | [INFO] [stdout] = note: the derive macro `FromPrimitive` defines the non-local `impl`, and may need to be changed [INFO] [stdout] = note: the derive macro `FromPrimitive` may come from an old version of the `num_derive` crate, try updating your dependency with `cargo update -p num_derive` [INFO] [stdout] = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl` [INFO] [stdout] = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint [INFO] [stdout] = note: `#[warn(non_local_definitions)]` on by default [INFO] [stdout] = note: this warning originates in the derive macro `FromPrimitive` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Option::::map_or` that must be used [INFO] [stdout] --> src/iterator.rs:234:9 [INFO] [stdout] | [INFO] [stdout] 234 | self.derived.as_mut().map_or((), |di| di.next()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the returned value, use `if let` instead [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 234 | let _ = self.derived.as_mut().map_or((), |di| di.next()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `Option::::map_or` that must be used [INFO] [stdout] --> src/iterator.rs:240:9 [INFO] [stdout] | [INFO] [stdout] 240 | self.derived.as_mut().map_or((), |di| di.prev()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the returned value, use `if let` instead [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 240 | let _ = self.derived.as_mut().map_or((), |di| di.prev()); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: non-local `impl` definition, `impl` blocks should be written at the same level as their item [INFO] [stdout] --> src/options.rs:33:30 [INFO] [stdout] | [INFO] [stdout] 33 | #[derive(Clone, Copy, Debug, FromPrimitive)] [INFO] [stdout] | ^------------ [INFO] [stdout] | | [INFO] [stdout] | `FromPrimitive` is not local [INFO] [stdout] | move the `impl` block outside of this constant `_IMPL_NUM_FromPrimitive_FOR_CompressionType` [INFO] [stdout] 34 | pub enum CompressionType { [INFO] [stdout] | --------------- `CompressionType` is not local [INFO] [stdout] | [INFO] [stdout] = note: the derive macro `FromPrimitive` defines the non-local `impl`, and may need to be changed [INFO] [stdout] = note: the derive macro `FromPrimitive` may come from an old version of the `num_derive` crate, try updating your dependency with `cargo update -p num_derive` [INFO] [stdout] = note: an `impl` is never scoped, even when it is nested inside an item, as it may impact type checking outside of that item, which can be the case if neither the trait or the self type are at the same nesting level as the `impl` [INFO] [stdout] = note: items in an anonymous const item (`const _: () = { ... }`) are treated as in the same scope as the anonymous const's declaration for the purpose of this lint [INFO] [stdout] = note: this warning originates in the derive macro `FromPrimitive` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.38s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: criterion v0.3.0, snap v1.0.0 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1` [INFO] running `Command { std: "docker" "inspect" "748237d42f308f2bc2894720bf705da79c68c845781304e16b2530c493d07a78", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "748237d42f308f2bc2894720bf705da79c68c845781304e16b2530c493d07a78", kill_on_drop: false }` [INFO] [stdout] 748237d42f308f2bc2894720bf705da79c68c845781304e16b2530c493d07a78