[INFO] cloning repository https://github.com/Rezayovan/rust_json_parser [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Rezayovan/rust_json_parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRezayovan%2Frust_json_parser", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRezayovan%2Frust_json_parser'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1b051603f7b4e68bfae3ce1b657bad09b00a5328 [INFO] building Rezayovan/rust_json_parser against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRezayovan%2Frust_json_parser" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Rezayovan/rust_json_parser on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Rezayovan/rust_json_parser [INFO] finished tweaking git repo https://github.com/Rezayovan/rust_json_parser [INFO] tweaked toml for git repo https://github.com/Rezayovan/rust_json_parser written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/Rezayovan/rust_json_parser 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 3b4996f0a9f812940b2be2cea5a37bae31c5cd00d89f6cdba9e23e0d57c60483 [INFO] running `Command { std: "docker" "start" "-a" "3b4996f0a9f812940b2be2cea5a37bae31c5cd00d89f6cdba9e23e0d57c60483", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "3b4996f0a9f812940b2be2cea5a37bae31c5cd00d89f6cdba9e23e0d57c60483", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3b4996f0a9f812940b2be2cea5a37bae31c5cd00d89f6cdba9e23e0d57c60483", kill_on_drop: false }` [INFO] [stdout] 3b4996f0a9f812940b2be2cea5a37bae31c5cd00d89f6cdba9e23e0d57c60483 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 7ed5f195ab01a10ba4e3e9aab445b4923c941aa03297863098970e255f8b368e [INFO] running `Command { std: "docker" "start" "-a" "7ed5f195ab01a10ba4e3e9aab445b4923c941aa03297863098970e255f8b368e", kill_on_drop: false }` [INFO] [stderr] Compiling rust_json_parser v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `result` [INFO] [stdout] --> src/parser.rs:32:13 [INFO] [stdout] | [INFO] [stdout] 32 | let result: Result = Ok(JsonEnum::Empty); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `o` [INFO] [stdout] --> src/parser.rs:166:26 [INFO] [stdout] | [INFO] [stdout] 166 | JsonEnum::Object(o) => "object undefined".to_string(), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_o` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `o` [INFO] [stdout] --> src/parser.rs:167:25 [INFO] [stdout] | [INFO] [stdout] 167 | JsonEnum::Array(o) => "array undefined".to_string(), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_o` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/parser.rs:7:12 [INFO] [stdout] | [INFO] [stdout] 7 | Object(Vec<(String, JsonEnum)>), [INFO] [stdout] | ------ ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `JsonEnum` 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] 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] 7 | Object(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/parser.rs:8:11 [INFO] [stdout] | [INFO] [stdout] 8 | Array(Vec), [INFO] [stdout] | ----- ^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `JsonEnum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [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] 8 | Array(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant `Number` is never constructed [INFO] [stdout] --> src/parser.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 6 | pub enum JsonEnum { [INFO] [stdout] | -------- variant in this enum [INFO] [stdout] ... [INFO] [stdout] 10 | Number(f32), [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `JsonEnum` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `parse_number` is never used [INFO] [stdout] --> src/parser.rs:132:8 [INFO] [stdout] | [INFO] [stdout] 21 | impl JsonParser { [INFO] [stdout] | --------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 132 | fn parse_number(&self) -> Result { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `to_str` is never used [INFO] [stdout] --> src/parser.rs:164:8 [INFO] [stdout] | [INFO] [stdout] 164 | pub fn to_str(json: &JsonEnum) -> String { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` in tuple element 1 that must be used [INFO] [stdout] --> src/main.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | dbg!("{}", res); [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this warning originates in the macro `$crate::dbg` which comes from the expansion of the macro `dbg` (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 0.16s [INFO] running `Command { std: "docker" "inspect" "7ed5f195ab01a10ba4e3e9aab445b4923c941aa03297863098970e255f8b368e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7ed5f195ab01a10ba4e3e9aab445b4923c941aa03297863098970e255f8b368e", kill_on_drop: false }` [INFO] [stdout] 7ed5f195ab01a10ba4e3e9aab445b4923c941aa03297863098970e255f8b368e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 117a6d677ed201d6e33ea235887a16d46b570d08d06b85708084a4fff5c5daf9 [INFO] running `Command { std: "docker" "start" "-a" "117a6d677ed201d6e33ea235887a16d46b570d08d06b85708084a4fff5c5daf9", kill_on_drop: false }` [INFO] [stderr] Compiling rust_json_parser v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0432]: unresolved imports `crate::parser::JsonNumber`, `crate::parser::from_str` [INFO] [stdout] --> src/test.rs:6:31 [INFO] [stdout] | [INFO] [stdout] 6 | use crate::parser::{JsonEnum, JsonNumber, from_str}; [INFO] [stdout] | ^^^^^^^^^^ ^^^^^^^^ no `from_str` in `parser` [INFO] [stdout] | | [INFO] [stdout] | no `JsonNumber` in `parser` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0610]: `f32` is a primitive type and therefore doesn't have fields [INFO] [stdout] --> src/test.rs:13:28 [INFO] [stdout] | [INFO] [stdout] 13 | assert_eq!(val.value, 3.0); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result` [INFO] [stdout] --> src/parser.rs:32:13 [INFO] [stdout] | [INFO] [stdout] 32 | let result: Result = Ok(JsonEnum::Empty); [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `o` [INFO] [stdout] --> src/parser.rs:166:26 [INFO] [stdout] | [INFO] [stdout] 166 | JsonEnum::Object(o) => "object undefined".to_string(), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_o` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `o` [INFO] [stdout] --> src/parser.rs:167:25 [INFO] [stdout] | [INFO] [stdout] 167 | JsonEnum::Array(o) => "array undefined".to_string(), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_o` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0432, E0610. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0432`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rust_json_parser` (bin "rust_json_parser" test) due to 2 previous errors; 3 warnings emitted [INFO] running `Command { std: "docker" "inspect" "117a6d677ed201d6e33ea235887a16d46b570d08d06b85708084a4fff5c5daf9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "117a6d677ed201d6e33ea235887a16d46b570d08d06b85708084a4fff5c5daf9", kill_on_drop: false }` [INFO] [stdout] 117a6d677ed201d6e33ea235887a16d46b570d08d06b85708084a4fff5c5daf9