[INFO] cloning repository https://github.com/rohankumardubey/wickdb [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rohankumardubey/wickdb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frohankumardubey%2Fwickdb", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frohankumardubey%2Fwickdb'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b8e4c6f6a1f284efab49974dd983fff3b3a48383 [INFO] checking rohankumardubey/wickdb against master#068609ce766e55d2e7371cd2a86143a6d7e8e2e4 for pr-138952 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frohankumardubey%2Fwickdb" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/rohankumardubey/wickdb on toolchain 068609ce766e55d2e7371cd2a86143a6d7e8e2e4 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] removed /workspace/builds/worker-1-tc1/source/rust-toolchain [INFO] started tweaking git repo https://github.com/rohankumardubey/wickdb [INFO] finished tweaking git repo https://github.com/rohankumardubey/wickdb [INFO] tweaked toml for git repo https://github.com/rohankumardubey/wickdb written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/rohankumardubey/wickdb already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded slog-async v2.4.0 [INFO] [stderr] Downloaded bstr v0.2.9 [INFO] [stderr] Downloaded csv v1.1.2 [INFO] [stderr] Downloaded slog-term v2.5.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" 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"/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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+068609ce766e55d2e7371cd2a86143a6d7e8e2e4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c4961c0959156043b6b76e188dba42ab06bcc694ee14399900ff4a558a941238 [INFO] running `Command { std: "docker" "start" "-a" "c4961c0959156043b6b76e188dba42ab06bcc694ee14399900ff4a558a941238", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking lazy_static v1.4.0 [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 proc-macro2 v1.0.7 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling serde v1.0.104 [INFO] [stderr] Compiling memchr v2.3.0 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling syn v1.0.13 [INFO] [stderr] Compiling ryu v1.0.2 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Compiling crossbeam-utils v0.7.0 [INFO] [stderr] Compiling crossbeam-epoch v0.8.0 [INFO] [stderr] Compiling memoffset v0.5.3 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Checking scopeguard v1.0.0 [INFO] [stderr] Compiling slog v2.5.2 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking dirs-sys v0.3.4 [INFO] [stderr] Compiling cast v0.2.3 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking ppv-lite86 v0.2.6 [INFO] [stderr] Checking itoa v0.4.4 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling rayon-core v1.7.0 [INFO] [stderr] Checking either v1.5.3 [INFO] [stderr] Checking crossbeam-queue v0.2.1 [INFO] [stderr] Checking crossbeam-deque v0.7.2 [INFO] [stderr] Checking dirs v2.0.2 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking num_cpus v1.11.1 [INFO] [stderr] Checking regex-automata v0.1.8 [INFO] [stderr] Checking crossbeam-utils v0.6.6 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking c2-chacha v0.2.3 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Compiling crc32fast v1.2.1 [INFO] [stderr] Compiling snap v1.0.0 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Checking crossbeam-channel v0.3.9 [INFO] [stderr] Checking chrono v0.4.10 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking term v0.6.1 [INFO] [stderr] Checking itertools v0.8.2 [INFO] [stderr] Checking csv-core v0.1.6 [INFO] [stderr] Checking take_mut v0.2.2 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking slog-async v2.4.0 [INFO] [stderr] Checking rayon v1.3.0 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking slog-term v2.5.0 [INFO] [stderr] Checking crossbeam-channel v0.4.0 [INFO] [stderr] Checking criterion-plot v0.4.0 [INFO] [stderr] Checking rand_xoshiro v0.3.1 [INFO] [stderr] Checking rand_os v0.2.2 [INFO] [stderr] Checking fs2 v0.4.3 [INFO] [stderr] Checking fxhash v0.2.1 [INFO] [stderr] Checking bytes v0.5.6 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Checking serde_json v1.0.44 [INFO] [stderr] Checking bstr v0.2.9 [INFO] [stderr] Checking csv v1.1.2 [INFO] [stderr] Compiling num-derive v0.3.0 [INFO] [stderr] Compiling serde_derive v1.0.104 [INFO] [stderr] Checking tinytemplate v1.0.3 [INFO] [stderr] Checking wickdb v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/db/format.rs:78:76 [INFO] [stdout] | [INFO] [stdout] 75 | impl<'a> ParsedInternalKey<'a> { [INFO] [stdout] | -- lifetime `'a` declared here [INFO] [stdout] ... [INFO] [stdout] 78 | pub fn decode_from(internal_key: &'a [u8]) -> Option> { [INFO] [stdout] | ^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/db/format.rs:96:81 [INFO] [stdout] | [INFO] [stdout] 75 | impl<'a> ParsedInternalKey<'a> { [INFO] [stdout] | -- lifetime `'a` declared here [INFO] [stdout] ... [INFO] [stdout] 96 | pub fn new(key: &'a [u8], seq: u64, v_type: ValueType) -> ParsedInternalKey<'_> { [INFO] [stdout] | ^^ this elided lifetime gets resolved as `'a` [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] = note: `#[warn(dead_code)]` on by default [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: 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: elided lifetime has a name [INFO] [stdout] --> src/db/format.rs:78:76 [INFO] [stdout] | [INFO] [stdout] 75 | impl<'a> ParsedInternalKey<'a> { [INFO] [stdout] | -- lifetime `'a` declared here [INFO] [stdout] ... [INFO] [stdout] 78 | pub fn decode_from(internal_key: &'a [u8]) -> Option> { [INFO] [stdout] | ^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/db/format.rs:96:81 [INFO] [stdout] | [INFO] [stdout] 75 | impl<'a> ParsedInternalKey<'a> { [INFO] [stdout] | -- lifetime `'a` declared here [INFO] [stdout] ... [INFO] [stdout] 96 | pub fn new(key: &'a [u8], seq: u64, v_type: ValueType) -> ParsedInternalKey<'_> { [INFO] [stdout] | ^^ this elided lifetime gets resolved as `'a` [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] = note: `#[warn(dead_code)]` on by default [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: 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 34.46s [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" "c4961c0959156043b6b76e188dba42ab06bcc694ee14399900ff4a558a941238", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c4961c0959156043b6b76e188dba42ab06bcc694ee14399900ff4a558a941238", kill_on_drop: false }` [INFO] [stdout] c4961c0959156043b6b76e188dba42ab06bcc694ee14399900ff4a558a941238