[INFO] fetching crate sing_macros 0.1.3... [INFO] testing sing_macros-0.1.3 against try#b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b for pr-145330-1 [INFO] extracting crate sing_macros 0.1.3 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate sing_macros 0.1.3 [INFO] finished tweaking crates.io crate sing_macros 0.1.3 [INFO] tweaked toml for crates.io crate sing_macros 0.1.3 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate sing_macros 0.1.3 on toolchain b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 86 packages to latest compatible versions [INFO] [stderr] Adding rand v0.7.3 (available: v0.9.2) [INFO] [stderr] Adding ron v0.7.1 (available: v0.11.0) [INFO] [stderr] Adding syn v1.0.109 (available: v2.0.106) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3da8dd1fb31ab14a8dc1c56e0cf2d9f10560e4cb3a8f5dd940e48b27b2a11614 [INFO] running `Command { std: "docker" "start" "-a" "3da8dd1fb31ab14a8dc1c56e0cf2d9f10560e4cb3a8f5dd940e48b27b2a11614", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3da8dd1fb31ab14a8dc1c56e0cf2d9f10560e4cb3a8f5dd940e48b27b2a11614", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3da8dd1fb31ab14a8dc1c56e0cf2d9f10560e4cb3a8f5dd940e48b27b2a11614", kill_on_drop: false }` [INFO] [stdout] 3da8dd1fb31ab14a8dc1c56e0cf2d9f10560e4cb3a8f5dd940e48b27b2a11614 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 936b7230637e694d08abd6e50cd54d96b423868986ceb3a38ad8ec362de9b6ab [INFO] running `Command { std: "docker" "start" "-a" "936b7230637e694d08abd6e50cd54d96b423868986ceb3a38ad8ec362de9b6ab", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.176 [INFO] [stderr] Compiling cfg-if v1.0.3 [INFO] [stderr] Compiling proc-macro2 v1.0.101 [INFO] [stderr] Compiling quote v1.0.41 [INFO] [stderr] Compiling unicode-ident v1.0.19 [INFO] [stderr] Compiling parking_lot_core v0.9.11 [INFO] [stderr] Compiling memchr v2.7.6 [INFO] [stderr] Compiling regex-syntax v0.8.6 [INFO] [stderr] Compiling scopeguard v1.2.0 [INFO] [stderr] Compiling crunchy v0.2.4 [INFO] [stderr] Compiling smallvec v1.15.1 [INFO] [stderr] Compiling equivalent v1.0.2 [INFO] [stderr] Compiling hashbrown v0.16.0 [INFO] [stderr] Compiling siphasher v1.0.1 [INFO] [stderr] Compiling tiny-keccak v2.0.2 [INFO] [stderr] Compiling lock_api v0.4.13 [INFO] [stderr] Compiling serde_core v1.0.228 [INFO] [stderr] Compiling precomputed-hash v0.1.1 [INFO] [stderr] Compiling log v0.4.28 [INFO] [stderr] Compiling new_debug_unreachable v1.0.6 [INFO] [stderr] Compiling zerocopy v0.8.27 [INFO] [stderr] Compiling phf_shared v0.11.3 [INFO] [stderr] Compiling either v1.15.0 [INFO] [stderr] Compiling serde v1.0.228 [INFO] [stderr] Compiling fixedbitset v0.4.2 [INFO] [stderr] Compiling bit-vec v0.6.3 [INFO] [stderr] Compiling getrandom v0.1.16 [INFO] [stderr] Compiling ena v0.14.3 [INFO] [stderr] Compiling regex-syntax v0.6.29 [INFO] [stderr] Compiling unicode-xid v0.2.6 [INFO] [stderr] Compiling diff v0.1.13 [INFO] [stderr] Compiling bitflags v1.3.2 [INFO] [stderr] Compiling bit-set v0.5.3 [INFO] [stderr] Compiling base64 v0.13.1 [INFO] [stderr] Compiling itertools v0.10.5 [INFO] [stderr] Compiling aho-corasick v1.1.3 [INFO] [stderr] Compiling syn v2.0.106 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling indexmap v2.11.4 [INFO] [stderr] Compiling petgraph v0.6.5 [INFO] [stderr] Compiling dirs-sys-next v0.1.2 [INFO] [stderr] Compiling is-terminal v0.4.16 [INFO] [stderr] Compiling dirs-next v2.0.0 [INFO] [stderr] Compiling parking_lot v0.12.4 [INFO] [stderr] Compiling term v0.7.0 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling serde_derive v1.0.228 [INFO] [stderr] Compiling ascii-canvas v3.0.0 [INFO] [stderr] Compiling regex-automata v0.4.11 [INFO] [stderr] Compiling string_cache v0.8.9 [INFO] [stderr] Compiling ppv-lite86 v0.2.21 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling sing_util v0.1.3 [INFO] [stderr] Compiling ron v0.7.1 [INFO] [stderr] Compiling regex v1.11.3 [INFO] [stderr] Compiling lalrpop-util v0.19.12 [INFO] [stderr] Compiling lalrpop v0.19.12 [INFO] [stderr] Compiling sing_parse v0.1.3 [INFO] [stderr] Compiling sing_macros v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/lib.rs:503:11 [INFO] [stdout] | [INFO] [stdout] 503 | Equal(keyword::equal), [INFO] [stdout] | ----- ^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 503 - Equal(keyword::equal), [INFO] [stdout] 503 + Equal(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/lib.rs:504:10 [INFO] [stdout] | [INFO] [stdout] 504 | Diff(keyword::different), [INFO] [stdout] | ---- ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 504 - Diff(keyword::different), [INFO] [stdout] 504 + Diff(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 32.69s [INFO] running `Command { std: "docker" "inspect" "936b7230637e694d08abd6e50cd54d96b423868986ceb3a38ad8ec362de9b6ab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "936b7230637e694d08abd6e50cd54d96b423868986ceb3a38ad8ec362de9b6ab", kill_on_drop: false }` [INFO] [stdout] 936b7230637e694d08abd6e50cd54d96b423868986ceb3a38ad8ec362de9b6ab [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b9859869cc2e30c4dbcb2a4f8c576ff54659df6c75748ff147151b3c12eb777b [INFO] running `Command { std: "docker" "start" "-a" "b9859869cc2e30c4dbcb2a4f8c576ff54659df6c75748ff147151b3c12eb777b", kill_on_drop: false }` [INFO] [stderr] Compiling sing_macros v0.1.3 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/lib.rs:503:11 [INFO] [stdout] | [INFO] [stdout] 503 | Equal(keyword::equal), [INFO] [stdout] | ----- ^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 503 - Equal(keyword::equal), [INFO] [stdout] 503 + Equal(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/lib.rs:504:10 [INFO] [stdout] | [INFO] [stdout] 504 | Diff(keyword::different), [INFO] [stdout] | ---- ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 504 - Diff(keyword::different), [INFO] [stdout] 504 + Diff(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/lib.rs:503:11 [INFO] [stdout] | [INFO] [stdout] 503 | Equal(keyword::equal), [INFO] [stdout] | ----- ^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 503 - Equal(keyword::equal), [INFO] [stdout] 503 + Equal(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/lib.rs:504:10 [INFO] [stdout] | [INFO] [stdout] 504 | Diff(keyword::different), [INFO] [stdout] | ---- ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 504 - Diff(keyword::different), [INFO] [stdout] 504 + Diff(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.58s [INFO] running `Command { std: "docker" "inspect" "b9859869cc2e30c4dbcb2a4f8c576ff54659df6c75748ff147151b3c12eb777b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b9859869cc2e30c4dbcb2a4f8c576ff54659df6c75748ff147151b3c12eb777b", kill_on_drop: false }` [INFO] [stdout] b9859869cc2e30c4dbcb2a4f8c576ff54659df6c75748ff147151b3c12eb777b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+b6ae10aa7319b7ebb6c7b3331dd71a9d6c9c5b4b" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] e2dd53cb3a6ec5ebcf3444eceeb8ba71ee94a93dbb3607d556aa17d11c578ea1 [INFO] running `Command { std: "docker" "start" "-a" "e2dd53cb3a6ec5ebcf3444eceeb8ba71ee94a93dbb3607d556aa17d11c578ea1", kill_on_drop: false }` [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/lib.rs:503:11 [INFO] [stderr] | [INFO] [stderr] 503 | Equal(keyword::equal), [INFO] [stderr] | ----- ^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this variant [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stderr] | [INFO] [stderr] 503 - Equal(keyword::equal), [INFO] [stderr] 503 + Equal(()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: field `0` is never read [INFO] [stderr] --> src/lib.rs:504:10 [INFO] [stderr] | [INFO] [stderr] 504 | Diff(keyword::different), [INFO] [stderr] | ---- ^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | field in this variant [INFO] [stderr] | [INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stderr] | [INFO] [stderr] 504 - Diff(keyword::different), [INFO] [stderr] 504 + Diff(()), [INFO] [stderr] | [INFO] [stderr] [INFO] [stderr] warning: `sing_macros` (lib) generated 2 warnings [INFO] [stderr] warning: `sing_macros` (lib test) generated 2 warnings (2 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sing_macros-7da29c16968c7973) [INFO] [stdout] [INFO] [stdout] running 3 tests [INFO] [stdout] test tests::save_tokenstream ... ok [INFO] [stdout] test tests::trait_call ... ok [INFO] [stdout] test tests::non_trait_call - should panic ... ok [INFO] [stdout] [INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s [INFO] [stdout] [INFO] [stderr] Doc-tests sing_macros [INFO] [stdout] [INFO] [stdout] running 2 tests [INFO] [stdout] test src/lib.rs - sing_add_trait (line 48) ... FAILED [INFO] [stdout] test src/lib.rs - sing_loop (line 175) ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- src/lib.rs - sing_add_trait (line 48) stdout ---- [INFO] [stdout] error: cannot find attribute `sing_add_trait` in this scope [INFO] [stdout] --> src/lib.rs:60:3 [INFO] [stdout] | [INFO] [stdout] 14 | #[sing_add_trait()] [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: consider importing this attribute macro [INFO] [stdout] | [INFO] [stdout] 2 + use sing_macros::sing_add_trait; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error: cannot find derive macro `Serialize` in this scope [INFO] [stdout] --> src/lib.rs:53:17 [INFO] [stdout] | [INFO] [stdout] 7 | #[derive(Debug, Serialize, Deserialize)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: consider importing this derive macro [INFO] [stdout] | [INFO] [stdout] 2 + use serde::Serialize; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error: cannot find derive macro `Deserialize` in this scope [INFO] [stdout] --> src/lib.rs:53:28 [INFO] [stdout] | [INFO] [stdout] 7 | #[derive(Debug, Serialize, Deserialize)] [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: consider importing this derive macro [INFO] [stdout] | [INFO] [stdout] 2 + use serde::Deserialize; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error: aborting due to 3 previous errors [INFO] [stdout] [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] ---- src/lib.rs - sing_loop (line 175) stdout ---- [INFO] [stdout] error: cannot find macro `sing_loop` in this scope [INFO] [stdout] --> src/lib.rs:178:4 [INFO] [stdout] | [INFO] [stdout] 5 | sing_loop!(tree, [different, ron::to_string, ron::from_str],); [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] help: consider importing this macro [INFO] [stdout] | [INFO] [stdout] 2 + use sing_macros::sing_loop; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] error[E0422]: cannot find struct, variant or union type `BananaTree` in this scope [INFO] [stdout] --> src/lib.rs:176:12 [INFO] [stdout] | [INFO] [stdout] 3 | let tree = BananaTree {}; [INFO] [stdout] | ^^^^^^^^^^ not found in this scope [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0422`. [INFO] [stdout] Couldn't compile the test. [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] src/lib.rs - sing_add_trait (line 48) [INFO] [stdout] src/lib.rs - sing_loop (line 175) [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.22s [INFO] [stdout] [INFO] [stderr] error: doctest failed, to rerun pass `--doc` [INFO] running `Command { std: "docker" "inspect" "e2dd53cb3a6ec5ebcf3444eceeb8ba71ee94a93dbb3607d556aa17d11c578ea1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e2dd53cb3a6ec5ebcf3444eceeb8ba71ee94a93dbb3607d556aa17d11c578ea1", kill_on_drop: false }` [INFO] [stdout] e2dd53cb3a6ec5ebcf3444eceeb8ba71ee94a93dbb3607d556aa17d11c578ea1