[INFO] cloning repository https://github.com/yichaolemon/RegexParser [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yichaolemon/RegexParser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyichaolemon%2FRegexParser", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyichaolemon%2FRegexParser'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 9a6bde9e2d3abfc4f79597353a1037b6e9c99c4a [INFO] building yichaolemon/RegexParser 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%2Fyichaolemon%2FRegexParser" "/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/yichaolemon/RegexParser 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/yichaolemon/RegexParser [INFO] finished tweaking git repo https://github.com/yichaolemon/RegexParser [INFO] tweaked toml for git repo https://github.com/yichaolemon/RegexParser written to /workspace/builds/worker-0-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/yichaolemon/RegexParser 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] [stderr] Blocking waiting for file lock on package cache [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] 1d9ce61564d0ad36eaee1e32e2b525dd2574e7d10c98bed94535b247a9375e3a [INFO] running `Command { std: "docker" "start" "-a" "1d9ce61564d0ad36eaee1e32e2b525dd2574e7d10c98bed94535b247a9375e3a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1d9ce61564d0ad36eaee1e32e2b525dd2574e7d10c98bed94535b247a9375e3a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1d9ce61564d0ad36eaee1e32e2b525dd2574e7d10c98bed94535b247a9375e3a", kill_on_drop: false }` [INFO] [stdout] 1d9ce61564d0ad36eaee1e32e2b525dd2574e7d10c98bed94535b247a9375e3a [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] 6cf74529d4366d84222fbb8882448c23d714a007b37ece8b3cbf553852c872fa [INFO] running `Command { std: "docker" "start" "-a" "6cf74529d4366d84222fbb8882448c23d714a007b37ece8b3cbf553852c872fa", kill_on_drop: false }` [INFO] [stderr] Compiling hex v0.4.2 [INFO] [stderr] Compiling maplit v1.0.2 [INFO] [stderr] Compiling regex_parser v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: method `example` is never used [INFO] [stdout] --> src/graph.rs:120:6 [INFO] [stdout] | [INFO] [stdout] 119 | pub trait Transition { [INFO] [stdout] | ---------- method in this trait [INFO] [stdout] 120 | fn example(&self, s: &String) -> String; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `example` is never used [INFO] [stdout] --> src/graph.rs:124:10 [INFO] [stdout] | [INFO] [stdout] 123 | impl Graph { [INFO] [stdout] | --------------------------------------------- method in this implementation [INFO] [stdout] 124 | pub fn example(&self) -> Option { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `is_match` and `debug` are never read [INFO] [stdout] --> src/dfa.rs:233:3 [INFO] [stdout] | [INFO] [stdout] 232 | pub struct Match { [INFO] [stdout] | ----- fields in this struct [INFO] [stdout] 233 | is_match: bool, [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] 234 | groups: HashMap, [INFO] [stdout] 235 | debug: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Match` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `print_to_file` is never used [INFO] [stdout] --> src/dfa.rs:246:6 [INFO] [stdout] | [INFO] [stdout] 244 | pub trait Matcher { [INFO] [stdout] | ------- method in this trait [INFO] [stdout] 245 | fn match_string(&self, s: &str) -> Match; [INFO] [stdout] 246 | fn print_to_file(&self, f: &str); [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.94s [INFO] running `Command { std: "docker" "inspect" "6cf74529d4366d84222fbb8882448c23d714a007b37ece8b3cbf553852c872fa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6cf74529d4366d84222fbb8882448c23d714a007b37ece8b3cbf553852c872fa", kill_on_drop: false }` [INFO] [stdout] 6cf74529d4366d84222fbb8882448c23d714a007b37ece8b3cbf553852c872fa [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] 4ac3683f2a1da90cb42bf0863a09cc6381dd561978e73e09cd4930e5c1b95498 [INFO] running `Command { std: "docker" "start" "-a" "4ac3683f2a1da90cb42bf0863a09cc6381dd561978e73e09cd4930e5c1b95498", kill_on_drop: false }` [INFO] [stderr] Compiling regex_parser v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: method `example` is never used [INFO] [stdout] --> src/graph.rs:120:6 [INFO] [stdout] | [INFO] [stdout] 119 | pub trait Transition { [INFO] [stdout] | ---------- method in this trait [INFO] [stdout] 120 | fn example(&self, s: &String) -> String; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `example` is never used [INFO] [stdout] --> src/graph.rs:124:10 [INFO] [stdout] | [INFO] [stdout] 123 | impl Graph { [INFO] [stdout] | --------------------------------------------- method in this implementation [INFO] [stdout] 124 | pub fn example(&self) -> Option { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `debug` is never read [INFO] [stdout] --> src/dfa.rs:235:3 [INFO] [stdout] | [INFO] [stdout] 232 | pub struct Match { [INFO] [stdout] | ----- field in this struct [INFO] [stdout] ... [INFO] [stdout] 235 | debug: String, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Match` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.05s [INFO] running `Command { std: "docker" "inspect" "4ac3683f2a1da90cb42bf0863a09cc6381dd561978e73e09cd4930e5c1b95498", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4ac3683f2a1da90cb42bf0863a09cc6381dd561978e73e09cd4930e5c1b95498", kill_on_drop: false }` [INFO] [stdout] 4ac3683f2a1da90cb42bf0863a09cc6381dd561978e73e09cd4930e5c1b95498