[INFO] fetching crate IMAPServer 0.2.0... [INFO] checking IMAPServer-0.2.0 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1 [INFO] extracting crate IMAPServer 0.2.0 into /workspace/builds/worker-7-tc1/source [INFO] started tweaking crates.io crate IMAPServer 0.2.0 [INFO] finished tweaking crates.io crate IMAPServer 0.2.0 [INFO] tweaked toml for crates.io crate IMAPServer 0.2.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate IMAPServer 0.2.0 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate IMAPServer 0.2.0 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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded hermit-abi v0.1.3 [INFO] [stderr] Downloaded tokio-macros v0.2.0 [INFO] [stderr] Downloaded mailparse v0.10.1 [INFO] [stderr] Downloaded ole32-sys v0.2.0 [INFO] [stderr] Downloaded charset v0.1.2 [INFO] [stderr] Downloaded app_dirs v1.2.1 [INFO] [stderr] Downloaded tokio v0.2.4 [INFO] [stderr] Downloaded shell32-sys v0.1.2 [INFO] [stderr] Downloaded serde_derive v1.0.103 [INFO] [stderr] Downloaded serde v1.0.103 [INFO] [stderr] Downloaded encoding_rs v0.8.20 [INFO] [stderr] Downloaded quoted_printable v0.4.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ae4f606e1fcd3ef7ab4885c6f43d87b4931fbb4ac04dfbedf641ca64c5da4a07 [INFO] running `Command { std: "docker" "start" "-a" "ae4f606e1fcd3ef7ab4885c6f43d87b4931fbb4ac04dfbedf641ca64c5da4a07", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ae4f606e1fcd3ef7ab4885c6f43d87b4931fbb4ac04dfbedf641ca64c5da4a07", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ae4f606e1fcd3ef7ab4885c6f43d87b4931fbb4ac04dfbedf641ca64c5da4a07", kill_on_drop: false }` [INFO] [stdout] ae4f606e1fcd3ef7ab4885c6f43d87b4931fbb4ac04dfbedf641ca64c5da4a07 [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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4a2bc50d9f67bdac57acc5d0d61d9a0439fbdab1edee9e45a96ddb2f5465228c [INFO] running `Command { std: "docker" "start" "-a" "4a2bc50d9f67bdac57acc5d0d61d9a0439fbdab1edee9e45a96ddb2f5465228c", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.6 [INFO] [stderr] Compiling syn v1.0.11 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Compiling libc v0.2.66 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Compiling pkg-config v0.3.17 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Compiling failure_derive v0.1.6 [INFO] [stderr] Compiling nom v4.2.3 [INFO] [stderr] Compiling glob v0.2.11 [INFO] [stderr] Compiling libsqlite3-sys v0.16.0 [INFO] [stderr] Compiling clang-sys v0.26.4 [INFO] [stderr] Compiling num_cpus v1.11.1 [INFO] [stderr] Compiling jobserver v0.1.17 [INFO] [stderr] Compiling rustc-demangle v0.1.16 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling atty v0.2.13 [INFO] [stderr] Compiling cc v1.0.48 [INFO] [stderr] Compiling aho-corasick v0.7.6 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Compiling unicode-width v0.1.7 [INFO] [stderr] Checking futures-core v0.3.1 [INFO] [stderr] Compiling quick-error v1.2.2 [INFO] [stderr] Compiling regex-syntax v0.6.12 [INFO] [stderr] Compiling humantime v1.3.0 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling termcolor v1.0.5 [INFO] [stderr] Checking futures-sink v0.3.1 [INFO] [stderr] Checking futures v0.1.29 [INFO] [stderr] Compiling bindgen v0.48.1 [INFO] [stderr] Compiling strsim v0.8.0 [INFO] [stderr] Compiling backtrace-sys v0.1.32 [INFO] [stderr] Compiling libloading v0.5.2 [INFO] [stderr] Compiling scopeguard v0.3.3 [INFO] [stderr] Compiling ansi_term v0.11.0 [INFO] [stderr] Compiling getrandom v0.1.13 [INFO] [stderr] Compiling vec_map v0.8.1 [INFO] [stderr] Compiling proc-macro-nested v0.1.3 [INFO] [stderr] Compiling hashbrown v0.1.8 [INFO] [stderr] Compiling clap v2.33.0 [INFO] [stderr] Compiling cexpr v0.3.6 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling rand v0.4.6 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling num-traits v0.2.10 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Compiling remove_dir_all v0.5.2 [INFO] [stderr] Compiling peeking_take_while v0.1.2 [INFO] [stderr] Checking mio v0.6.21 [INFO] [stderr] Checking futures-channel v0.3.1 [INFO] [stderr] Checking base64 v0.10.1 [INFO] [stderr] Compiling tempdir v0.3.7 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling num-integer v0.1.41 [INFO] [stderr] Compiling regex v1.3.1 [INFO] [stderr] Compiling encoding_rs v0.8.20 [INFO] [stderr] Checking pin-utils v0.1.0-alpha.4 [INFO] [stderr] Checking ppv-lite86 v0.2.6 [INFO] [stderr] Compiling serde v1.0.103 [INFO] [stderr] Checking futures-task v0.3.1 [INFO] [stderr] Checking futures-io v0.3.1 [INFO] [stderr] Checking arc-swap v0.4.4 [INFO] [stderr] Checking c2-chacha v0.2.3 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking signal-hook-registry v1.2.0 [INFO] [stderr] Checking rand_isaac v0.1.1 [INFO] [stderr] Checking rand_hc v0.1.0 [INFO] [stderr] Checking rand_xorshift v0.1.1 [INFO] [stderr] Checking rand_jitter v0.1.4 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Checking pin-project-lite v0.1.1 [INFO] [stderr] Checking bytes v0.5.3 [INFO] [stderr] Checking linked-hash-map v0.5.2 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking yaml-rust v0.4.3 [INFO] [stderr] Checking futures-cpupool v0.1.8 [INFO] [stderr] Compiling env_logger v0.6.2 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking scopeguard v1.0.0 [INFO] [stderr] Checking dtoa v0.4.4 [INFO] [stderr] Checking colored v1.9.0 [INFO] [stderr] Checking chrono v0.4.10 [INFO] [stderr] Checking rand v0.7.2 [INFO] [stderr] Checking quoted_printable v0.4.1 [INFO] [stderr] Checking xdg v2.2.0 [INFO] [stderr] Checking base64 v0.11.0 [INFO] [stderr] Checking app_dirs v1.2.1 [INFO] [stderr] Compiling synstructure v0.12.3 [INFO] [stderr] Checking charset v0.1.2 [INFO] [stderr] Checking mailparse v0.10.1 [INFO] [stderr] Checking fern v0.5.9 [INFO] [stderr] Compiling backtrace v0.3.40 [INFO] [stderr] Compiling diesel_derives v1.4.1 [INFO] [stderr] Compiling proc-macro-hack v0.5.11 [INFO] [stderr] Compiling serde_derive v1.0.103 [INFO] [stderr] Compiling tokio-macros v0.2.0 [INFO] [stderr] Checking tokio v0.2.4 [INFO] [stderr] Compiling failure v0.1.6 [INFO] [stderr] Compiling futures-macro v0.3.1 [INFO] [stderr] Compiling which v2.0.1 [INFO] [stderr] Checking futures-util v0.3.1 [INFO] [stderr] Compiling diesel v1.4.3 [INFO] [stderr] Checking tokio-util v0.2.0 [INFO] [stderr] Checking futures-executor v0.3.1 [INFO] [stderr] Checking futures v0.3.1 [INFO] [stderr] Compiling argonautica v0.2.0 [INFO] [stderr] Checking serde_yaml v0.8.11 [INFO] [stderr] Checking migrations_internals v1.4.0 [INFO] [stderr] Compiling migrations_macros v1.4.1 [INFO] [stderr] Checking diesel_migrations v1.4.0 [INFO] [stderr] Checking IMAPServer-shared v0.1.0 [INFO] [stderr] Checking IMAPServer v0.2.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused imports: `BufWriter` and `Write` [INFO] [stdout] --> src/main.rs:5:15 [INFO] [stdout] | [INFO] [stdout] 5 | use std::io::{BufWriter, Write}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy` [INFO] [stdout] --> src/config.rs:3:28 [INFO] [stdout] | [INFO] [stdout] 3 | #[derive(Debug, PartialEq, Serialize, Deserialize)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: no expected values for `feature` [INFO] [stdout] = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate [INFO] [stdout] = help: try referring to `Serialize` crate for guidance on how handle this unexpected cfg [INFO] [stdout] = help: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy` [INFO] [stdout] --> src/config.rs:3:39 [INFO] [stdout] | [INFO] [stdout] 3 | #[derive(Debug, PartialEq, Serialize, Deserialize)] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: no expected values for `feature` [INFO] [stdout] = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate [INFO] [stdout] = help: try referring to `Deserialize` crate for guidance on how handle this unexpected cfg [INFO] [stdout] = help: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/commands/authenticate.rs:145:13 [INFO] [stdout] | [INFO] [stdout] 145 | let mut peer = state.peers.get_mut(&addr).expect("unable to find peer"); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `BufWriter` and `Write` [INFO] [stdout] --> src/main.rs:5:15 [INFO] [stdout] | [INFO] [stdout] 5 | use std::io::{BufWriter, Write}; [INFO] [stdout] | ^^^^^^^^^ ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy` [INFO] [stdout] --> src/config.rs:3:28 [INFO] [stdout] | [INFO] [stdout] 3 | #[derive(Debug, PartialEq, Serialize, Deserialize)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: no expected values for `feature` [INFO] [stdout] = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate [INFO] [stdout] = help: try referring to `Serialize` crate for guidance on how handle this unexpected cfg [INFO] [stdout] = help: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] = note: this warning originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition value: `cargo-clippy` [INFO] [stdout] --> src/config.rs:3:39 [INFO] [stdout] | [INFO] [stdout] 3 | #[derive(Debug, PartialEq, Serialize, Deserialize)] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: no expected values for `feature` [INFO] [stdout] = note: using a cfg inside a derive macro will use the cfgs from the destination crate and not the ones from the defining crate [INFO] [stdout] = help: try referring to `Deserialize` crate for guidance on how handle this unexpected cfg [INFO] [stdout] = help: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_derive` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: this warning originates in the derive macro `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/commands/authenticate.rs:145:13 [INFO] [stdout] | [INFO] [stdout] 145 | let mut peer = state.peers.get_mut(&addr).expect("unable to find peer"); [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Config` is never constructed [INFO] [stdout] --> src/config.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct Config { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [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/config.rs:3:28 [INFO] [stdout] | [INFO] [stdout] 3 | #[derive(Debug, PartialEq, Serialize, Deserialize)] [INFO] [stdout] | ^-------- [INFO] [stdout] | | [INFO] [stdout] | `Serialize` is not local [INFO] [stdout] | move the `impl` block outside of this constant `_IMPL_SERIALIZE_FOR_Config` [INFO] [stdout] 4 | struct Config { [INFO] [stdout] | ------ `Config` is not local [INFO] [stdout] | [INFO] [stdout] = note: the derive macro `Serialize` defines the non-local `impl`, and may need to be changed [INFO] [stdout] = note: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_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 `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info) [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/config.rs:3:39 [INFO] [stdout] | [INFO] [stdout] 3 | #[derive(Debug, PartialEq, Serialize, Deserialize)] [INFO] [stdout] | ^---------- [INFO] [stdout] | | [INFO] [stdout] | `Deserialize` is not local [INFO] [stdout] | move the `impl` block outside of this constant `_IMPL_DESERIALIZE_FOR_Config` [INFO] [stdout] 4 | struct Config { [INFO] [stdout] | ------ `Config` is not local [INFO] [stdout] | [INFO] [stdout] = note: the derive macro `Deserialize` defines the non-local `impl`, and may need to be changed [INFO] [stdout] = note: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_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 `Deserialize` (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Config` is never constructed [INFO] [stdout] --> src/config.rs:4:8 [INFO] [stdout] | [INFO] [stdout] 4 | struct Config { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [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/config.rs:3:28 [INFO] [stdout] | [INFO] [stdout] 3 | #[derive(Debug, PartialEq, Serialize, Deserialize)] [INFO] [stdout] | ^-------- [INFO] [stdout] | | [INFO] [stdout] | `Serialize` is not local [INFO] [stdout] | move the `impl` block outside of this constant `_IMPL_SERIALIZE_FOR_Config` [INFO] [stdout] 4 | struct Config { [INFO] [stdout] | ------ `Config` is not local [INFO] [stdout] | [INFO] [stdout] = note: the derive macro `Serialize` defines the non-local `impl`, and may need to be changed [INFO] [stdout] = note: the derive macro `Serialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_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 `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info) [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/config.rs:3:39 [INFO] [stdout] | [INFO] [stdout] 3 | #[derive(Debug, PartialEq, Serialize, Deserialize)] [INFO] [stdout] | ^---------- [INFO] [stdout] | | [INFO] [stdout] | `Deserialize` is not local [INFO] [stdout] | move the `impl` block outside of this constant `_IMPL_DESERIALIZE_FOR_Config` [INFO] [stdout] 4 | struct Config { [INFO] [stdout] | ------ `Config` is not local [INFO] [stdout] | [INFO] [stdout] = note: the derive macro `Deserialize` defines the non-local `impl`, and may need to be changed [INFO] [stdout] = note: the derive macro `Deserialize` may come from an old version of the `serde_derive` crate, try updating your dependency with `cargo update -p serde_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 `Deserialize` (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 1m 26s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: cexpr v0.3.6, nom v4.2.3 [INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4` [INFO] running `Command { std: "docker" "inspect" "4a2bc50d9f67bdac57acc5d0d61d9a0439fbdab1edee9e45a96ddb2f5465228c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4a2bc50d9f67bdac57acc5d0d61d9a0439fbdab1edee9e45a96ddb2f5465228c", kill_on_drop: false }` [INFO] [stdout] 4a2bc50d9f67bdac57acc5d0d61d9a0439fbdab1edee9e45a96ddb2f5465228c