[INFO] fetching crate rendr 0.3.2... [INFO] checking rendr-0.3.2 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604 [INFO] extracting crate rendr 0.3.2 into /workspace/builds/worker-2-tc1/source [INFO] validating manifest of crates.io crate rendr 0.3.2 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate rendr 0.3.2 [INFO] finished tweaking crates.io crate rendr 0.3.2 [INFO] tweaked toml for crates.io crate rendr 0.3.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate crates.io crate rendr 0.3.2 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded serde_yaml v0.8.13 [INFO] [stderr] Downloaded text_io v0.1.8 [INFO] [stderr] Downloaded vcpkg v0.2.10 [INFO] [stderr] Downloaded proc-macro-error-attr v1.0.3 [INFO] [stderr] Downloaded semver-parser v0.9.0 [INFO] [stderr] Downloaded ppv-lite86 v0.2.8 [INFO] [stderr] Downloaded clap-cargo v0.3.1 [INFO] [stderr] Downloaded synstructure v0.12.4 [INFO] [stderr] Downloaded addr2line v0.13.0 [INFO] [stderr] Downloaded native-tls v0.2.4 [INFO] [stderr] Downloaded toml_edit v0.1.5 [INFO] [stderr] Downloaded flate2 v1.0.16 [INFO] [stderr] Downloaded backtrace v0.3.50 [INFO] [stderr] Downloaded serde_json v1.0.56 [INFO] [stderr] Downloaded hyper v0.12.35 [INFO] [stderr] Downloaded object v0.20.0 [INFO] [stderr] Downloaded syn v1.0.33 [INFO] [stderr] Downloaded git2 v0.13.6 [INFO] [stderr] Downloaded openssl v0.10.30 [INFO] [stderr] Downloaded once_cell v1.4.0 [INFO] [stderr] Downloaded structopt v0.3.15 [INFO] [stderr] Downloaded cargo-release v0.13.0 [INFO] [stderr] Downloaded openssl-sys v0.9.58 [INFO] [stderr] Downloaded bstr v0.2.13 [INFO] [stderr] Downloaded miniz_oxide v0.4.0 [INFO] [stderr] Downloaded indexmap v1.4.0 [INFO] [stderr] Downloaded publicsuffix v1.5.4 [INFO] [stderr] Downloaded adler v0.2.2 [INFO] [stderr] Downloaded crates_io_api v0.5.1 [INFO] [stderr] Downloaded proc-macro-error v1.0.3 [INFO] [stderr] Downloaded structopt-derive v0.4.8 [INFO] [stderr] Downloaded libssh2-sys v0.2.18 [INFO] [stderr] Downloaded dirs-sys v0.3.5 [INFO] [stderr] Downloaded tinyvec v0.3.3 [INFO] [stderr] Downloaded libz-sys v1.0.25 [INFO] [stderr] Downloaded gimli v0.22.0 [INFO] [stderr] Downloaded encoding_rs v0.8.23 [INFO] [stderr] Downloaded libgit2-sys v0.12.7+1.0.0 [INFO] [stderr] Downloaded openssl-src v111.10.1+1.1.1g [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a6fe9d9d1a9e68a46c92b47db7c53528e7b2180999ab423e424e1b9e31ea0247 [INFO] running `Command { std: "docker" "start" "-a" "a6fe9d9d1a9e68a46c92b47db7c53528e7b2180999ab423e424e1b9e31ea0247", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a6fe9d9d1a9e68a46c92b47db7c53528e7b2180999ab423e424e1b9e31ea0247", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a6fe9d9d1a9e68a46c92b47db7c53528e7b2180999ab423e424e1b9e31ea0247", kill_on_drop: false }` [INFO] [stdout] a6fe9d9d1a9e68a46c92b47db7c53528e7b2180999ab423e424e1b9e31ea0247 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 680abb04f974e6445da8ddf17d708a928848a89d4804b6c786d3736448b337a4 [INFO] running `Command { std: "docker" "start" "-a" "680abb04f974e6445da8ddf17d708a928848a89d4804b6c786d3736448b337a4", kill_on_drop: false }` [INFO] [stderr] warning: rendr v0.3.2 (/opt/rustwide/workdir) ignoring invalid dependency `cargo-release` which is missing a lib target [INFO] [stderr] Compiling libc v0.2.72 [INFO] [stderr] Compiling pkg-config v0.3.17 [INFO] [stderr] Compiling proc-macro2 v1.0.18 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.33 [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling serde_derive v1.0.114 [INFO] [stderr] Compiling serde v1.0.114 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Checking tinyvec v0.3.3 [INFO] [stderr] Checking matches v0.1.8 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling openssl v0.10.30 [INFO] [stderr] Checking unicode-bidi v0.3.4 [INFO] [stderr] Checking quick-error v1.2.3 [INFO] [stderr] Checking regex-syntax v0.6.18 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking foreign-types-shared v0.1.1 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking linked-hash-map v0.5.3 [INFO] [stderr] Checking percent-encoding v2.1.0 [INFO] [stderr] Checking foreign-types v0.3.2 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Checking same-file v1.0.6 [INFO] [stderr] Checking yaml-rust v0.3.5 [INFO] [stderr] Checking yaml-rust v0.4.4 [INFO] [stderr] Compiling rendr v0.3.2 (/opt/rustwide/workdir) [INFO] [stderr] Checking dtoa v0.4.6 [INFO] [stderr] Checking openssl-probe v0.1.2 [INFO] [stderr] Checking termcolor v1.1.0 [INFO] [stderr] Checking remove_dir_all v0.5.3 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking unicode-normalization v0.1.13 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking walkdir v2.3.1 [INFO] [stderr] Checking glob v0.3.0 [INFO] [stderr] Checking text_io v0.1.8 [INFO] [stderr] Checking aho-corasick v0.7.13 [INFO] [stderr] Checking pathdiff v0.2.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking rand v0.4.6 [INFO] [stderr] Checking clap v2.33.1 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling jobserver v0.1.21 [INFO] [stderr] Checking tempdir v0.3.7 [INFO] [stderr] Compiling cc v1.0.58 [INFO] [stderr] Checking idna v0.2.0 [INFO] [stderr] Checking url v2.1.1 [INFO] [stderr] Compiling openssl-src v111.10.1+1.1.1g [INFO] [stderr] Compiling libz-sys v1.0.25 [INFO] [stderr] Compiling libssh2-sys v0.2.18 [INFO] [stderr] Compiling libgit2-sys v0.12.7+1.0.0 [INFO] [stderr] Compiling openssl-sys v0.9.58 [INFO] [stderr] Checking regex v1.3.9 [INFO] [stderr] Checking serde_yaml v0.8.13 [INFO] [stderr] Checking log v0.3.9 [INFO] [stderr] Checking env_logger v0.7.1 [INFO] [stderr] Checking mustache v0.9.0 [INFO] [stderr] Checking git2 v0.13.6 [INFO] [stdout] warning: unexpected `cfg` condition name: `debug` [INFO] [stdout] --> src/blueprint/mod.rs:281:15 [INFO] [stdout] | [INFO] [stdout] 281 | #[cfg(debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: expected names are: `clippy`, `debug_assertions`, `doc`, `docsrs`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `rustfmt`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `ub_checks`, `unix`, and `windows` [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `debug` [INFO] [stdout] --> src/blueprint/mod.rs:281:15 [INFO] [stdout] | [INFO] [stdout] 281 | #[cfg(debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: expected names are: `clippy`, `debug_assertions`, `doc`, `docsrs`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `rustfmt`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `ub_checks`, `unix`, and `windows` [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `msg` is never read [INFO] [stdout] --> src/blueprint/mod.rs:309:5 [INFO] [stdout] | [INFO] [stdout] 307 | struct ScriptError { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 308 | status: Option, [INFO] [stdout] 309 | msg: String, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ScriptError` 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: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `msg` is never read [INFO] [stdout] --> src/blueprint/mod.rs:309:5 [INFO] [stdout] | [INFO] [stdout] 307 | struct ScriptError { [INFO] [stdout] | ----------- field in this struct [INFO] [stdout] 308 | status: Option, [INFO] [stdout] 309 | msg: String, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `ScriptError` 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: unexpected `cfg` condition name: `debug` [INFO] [stdout] --> src/bin/main.rs:17:15 [INFO] [stdout] | [INFO] [stdout] 17 | #[cfg(debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: expected names are: `clippy`, `debug_assertions`, `doc`, `docsrs`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `rustfmt`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `ub_checks`, `unix`, and `windows` [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `debug` [INFO] [stdout] --> src/bin/main.rs:20:19 [INFO] [stdout] | [INFO] [stdout] 20 | #[cfg(not(debug))] [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `debug` [INFO] [stdout] --> src/bin/main.rs:37:11 [INFO] [stdout] | [INFO] [stdout] 37 | #[cfg(debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `debug` [INFO] [stdout] --> src/bin/main.rs:42:15 [INFO] [stdout] | [INFO] [stdout] 42 | #[cfg(not(debug))] [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `debug` [INFO] [stdout] --> src/bin/main.rs:17:15 [INFO] [stdout] | [INFO] [stdout] 17 | #[cfg(debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: expected names are: `clippy`, `debug_assertions`, `doc`, `docsrs`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `rustfmt`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `ub_checks`, `unix`, and `windows` [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] = note: `#[warn(unexpected_cfgs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `debug` [INFO] [stdout] --> src/bin/main.rs:20:19 [INFO] [stdout] | [INFO] [stdout] 20 | #[cfg(not(debug))] [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `debug` [INFO] [stdout] --> src/bin/main.rs:37:11 [INFO] [stdout] | [INFO] [stdout] 37 | #[cfg(debug)] [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unexpected `cfg` condition name: `debug` [INFO] [stdout] --> src/bin/main.rs:42:15 [INFO] [stdout] | [INFO] [stdout] 42 | #[cfg(not(debug))] [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: consider using a Cargo feature instead [INFO] [stdout] = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint: [INFO] [stdout] [lints.rust] [INFO] [stdout] unexpected_cfgs = { level = "warn", check-cfg = ['cfg(debug)'] } [INFO] [stdout] = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(debug)");` to the top of the `build.rs` [INFO] [stdout] = note: see for more information about checking conditional configuration [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 07s [INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: git2 v0.13.6 [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" "680abb04f974e6445da8ddf17d708a928848a89d4804b6c786d3736448b337a4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "680abb04f974e6445da8ddf17d708a928848a89d4804b6c786d3736448b337a4", kill_on_drop: false }` [INFO] [stdout] 680abb04f974e6445da8ddf17d708a928848a89d4804b6c786d3736448b337a4