[INFO] cloning repository https://github.com/cfsamson/examples-parsers [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cfsamson/examples-parsers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcfsamson%2Fexamples-parsers", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcfsamson%2Fexamples-parsers'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e47801140f65a0b613c09dd8b2a6cd55ed3e51c8 [INFO] building cfsamson/examples-parsers 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%2Fcfsamson%2Fexamples-parsers" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/cfsamson/examples-parsers 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/cfsamson/examples-parsers [INFO] finished tweaking git repo https://github.com/cfsamson/examples-parsers [INFO] tweaked toml for git repo https://github.com/cfsamson/examples-parsers written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/cfsamson/examples-parsers 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] b50fac269dd5a4cd436123534c65bad1543b127e1e24d743c0a2d0580635f150 [INFO] running `Command { std: "docker" "start" "-a" "b50fac269dd5a4cd436123534c65bad1543b127e1e24d743c0a2d0580635f150", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b50fac269dd5a4cd436123534c65bad1543b127e1e24d743c0a2d0580635f150", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b50fac269dd5a4cd436123534c65bad1543b127e1e24d743c0a2d0580635f150", kill_on_drop: false }` [INFO] [stdout] b50fac269dd5a4cd436123534c65bad1543b127e1e24d743c0a2d0580635f150 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] fd1c5676714947fe689e4bf29d22eb5e69bc1e9f50caab3f734d101ff025c2fb [INFO] running `Command { std: "docker" "start" "-a" "fd1c5676714947fe689e4bf29d22eb5e69bc1e9f50caab3f734d101ff025c2fb", kill_on_drop: false }` [INFO] [stderr] Compiling parser v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `test` [INFO] [stdout] --> src/recursive_ascent.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let test = "[1, [], 3]"; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_test` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `test` is never used [INFO] [stdout] --> src/recursive_ascent.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn test() { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Lex` is never constructed [INFO] [stdout] --> src/recursive_ascent.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | struct Lex { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `token` is never used [INFO] [stdout] --> src/recursive_ascent.rs:11:8 [INFO] [stdout] | [INFO] [stdout] 10 | impl Lex { [INFO] [stdout] | -------- method in this implementation [INFO] [stdout] 11 | fn token(&self) -> Token { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Token` is never used [INFO] [stdout] --> src/recursive_ascent.rs:16:6 [INFO] [stdout] | [INFO] [stdout] 16 | enum Token { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Value` is never constructed [INFO] [stdout] --> src/recursive_ascent.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 24 | struct Value(JsonValue); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Array` is never constructed [INFO] [stdout] --> src/recursive_ascent.rs:25:8 [INFO] [stdout] | [INFO] [stdout] 25 | struct Array(Vec); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Elements` is never constructed [INFO] [stdout] --> src/recursive_ascent.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | struct Elements(Vec); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `JsonValue` is never used [INFO] [stdout] --> src/recursive_ascent.rs:28:6 [INFO] [stdout] | [INFO] [stdout] 28 | enum JsonValue { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `ParseError` is never constructed [INFO] [stdout] --> src/recursive_ascent.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | struct ParseError; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/recursive_descent.rs:163:12 [INFO] [stdout] | [INFO] [stdout] 163 | Number(f64), [INFO] [stdout] | ------ ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `AstKind` 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] 163 | Number(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/recursive_descent.rs:164:14 [INFO] [stdout] | [INFO] [stdout] 164 | Operator(String), [INFO] [stdout] | -------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `AstKind` 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] 164 | Operator(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s [INFO] running `Command { std: "docker" "inspect" "fd1c5676714947fe689e4bf29d22eb5e69bc1e9f50caab3f734d101ff025c2fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "fd1c5676714947fe689e4bf29d22eb5e69bc1e9f50caab3f734d101ff025c2fb", kill_on_drop: false }` [INFO] [stdout] fd1c5676714947fe689e4bf29d22eb5e69bc1e9f50caab3f734d101ff025c2fb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 34ce4a74e35174cd8878786f87e9756e5cac8067b2c1d0acdb3741e8b43ea250 [INFO] running `Command { std: "docker" "start" "-a" "34ce4a74e35174cd8878786f87e9756e5cac8067b2c1d0acdb3741e8b43ea250", kill_on_drop: false }` [INFO] [stderr] Compiling parser v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `test` [INFO] [stdout] --> src/recursive_ascent.rs:2:9 [INFO] [stdout] | [INFO] [stdout] 2 | let test = "[1, [], 3]"; [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_test` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `test` is never used [INFO] [stdout] --> src/recursive_ascent.rs:1:4 [INFO] [stdout] | [INFO] [stdout] 1 | fn test() { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Lex` is never constructed [INFO] [stdout] --> src/recursive_ascent.rs:6:8 [INFO] [stdout] | [INFO] [stdout] 6 | struct Lex { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `token` is never used [INFO] [stdout] --> src/recursive_ascent.rs:11:8 [INFO] [stdout] | [INFO] [stdout] 10 | impl Lex { [INFO] [stdout] | -------- method in this implementation [INFO] [stdout] 11 | fn token(&self) -> Token { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Token` is never used [INFO] [stdout] --> src/recursive_ascent.rs:16:6 [INFO] [stdout] | [INFO] [stdout] 16 | enum Token { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Value` is never constructed [INFO] [stdout] --> src/recursive_ascent.rs:24:8 [INFO] [stdout] | [INFO] [stdout] 24 | struct Value(JsonValue); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Array` is never constructed [INFO] [stdout] --> src/recursive_ascent.rs:25:8 [INFO] [stdout] | [INFO] [stdout] 25 | struct Array(Vec); [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Elements` is never constructed [INFO] [stdout] --> src/recursive_ascent.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | struct Elements(Vec); [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `JsonValue` is never used [INFO] [stdout] --> src/recursive_ascent.rs:28:6 [INFO] [stdout] | [INFO] [stdout] 28 | enum JsonValue { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `ParseError` is never constructed [INFO] [stdout] --> src/recursive_ascent.rs:33:8 [INFO] [stdout] | [INFO] [stdout] 33 | struct ParseError; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/recursive_descent.rs:163:12 [INFO] [stdout] | [INFO] [stdout] 163 | Number(f64), [INFO] [stdout] | ------ ^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `AstKind` 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] 163 | Number(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/recursive_descent.rs:164:14 [INFO] [stdout] | [INFO] [stdout] 164 | Operator(String), [INFO] [stdout] | -------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `AstKind` 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] 164 | Operator(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s [INFO] running `Command { std: "docker" "inspect" "34ce4a74e35174cd8878786f87e9756e5cac8067b2c1d0acdb3741e8b43ea250", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "34ce4a74e35174cd8878786f87e9756e5cac8067b2c1d0acdb3741e8b43ea250", kill_on_drop: false }` [INFO] [stdout] 34ce4a74e35174cd8878786f87e9756e5cac8067b2c1d0acdb3741e8b43ea250