[INFO] cloning repository https://github.com/kgtkr/regex-rs [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kgtkr/regex-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkgtkr%2Fregex-rs", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkgtkr%2Fregex-rs'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a1f3b0515afbee3a37f755ea2c9af759531fb3f1 [INFO] building kgtkr/regex-rs 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%2Fkgtkr%2Fregex-rs" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/kgtkr/regex-rs 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/kgtkr/regex-rs [INFO] finished tweaking git repo https://github.com/kgtkr/regex-rs [INFO] tweaked toml for git repo https://github.com/kgtkr/regex-rs written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/kgtkr/regex-rs 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] Downloading crates ... [INFO] [stderr] Downloaded combine v4.0.0-beta.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 364724053ea6ea7d116f00a937af2821c056eb4d6aaafc526fa3eea6b56eb4ae [INFO] running `Command { std: "docker" "start" "-a" "364724053ea6ea7d116f00a937af2821c056eb4d6aaafc526fa3eea6b56eb4ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "364724053ea6ea7d116f00a937af2821c056eb4d6aaafc526fa3eea6b56eb4ae", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "364724053ea6ea7d116f00a937af2821c056eb4d6aaafc526fa3eea6b56eb4ae", kill_on_drop: false }` [INFO] [stdout] 364724053ea6ea7d116f00a937af2821c056eb4d6aaafc526fa3eea6b56eb4ae [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] d4a573905e885a52796d651bce2f1a8aa6dcc1ea5c42b36b9421eaeebf0d6dc7 [INFO] running `Command { std: "docker" "start" "-a" "d4a573905e885a52796d651bce2f1a8aa6dcc1ea5c42b36b9421eaeebf0d6dc7", kill_on_drop: false }` [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Compiling ascii v1.0.0 [INFO] [stderr] Compiling either v1.5.3 [INFO] [stderr] Compiling combine v4.0.0-beta.1 [INFO] [stderr] Compiling regex-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the feature `maybe_uninit` has been stable since 1.36.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(maybe_uninit)] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variants `Empty`, `Char`, `Or`, `Concat`, and `Loop` are never constructed [INFO] [stdout] --> src/ast.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 2 | pub enum Expr { [INFO] [stdout] | ---- variants in this enum [INFO] [stdout] 3 | Empty, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 4 | Char(char), [INFO] [stdout] | ^^^^ [INFO] [stdout] 5 | Or(Box, Box), [INFO] [stdout] | ^^ [INFO] [stdout] 6 | Concat(Box, Box), [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 7 | Loop(Box), [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `Expr` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `match_expr` is never used [INFO] [stdout] --> src/interpreter.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | pub fn match_expr(pat: &Expr, s: &str) -> bool { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `match_helper` is never used [INFO] [stdout] --> src/interpreter.rs:7:4 [INFO] [stdout] | [INFO] [stdout] 7 | fn match_helper(s: &Vec, i: usize, pat: &Expr) -> Option { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `parse_expr` is never used [INFO] [stdout] --> src/parser.rs:7:8 [INFO] [stdout] | [INFO] [stdout] 7 | pub fn parse_expr(s: &str) -> Option { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.46s [INFO] running `Command { std: "docker" "inspect" "d4a573905e885a52796d651bce2f1a8aa6dcc1ea5c42b36b9421eaeebf0d6dc7", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d4a573905e885a52796d651bce2f1a8aa6dcc1ea5c42b36b9421eaeebf0d6dc7", kill_on_drop: false }` [INFO] [stdout] d4a573905e885a52796d651bce2f1a8aa6dcc1ea5c42b36b9421eaeebf0d6dc7 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 54877cfb552db103102571d2c1e7b738b60c19204d3edd22b6dec30b7b4837d8 [INFO] running `Command { std: "docker" "start" "-a" "54877cfb552db103102571d2c1e7b738b60c19204d3edd22b6dec30b7b4837d8", kill_on_drop: false }` [INFO] [stderr] Compiling regex-rs v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: the feature `maybe_uninit` has been stable since 1.36.0 and no longer requires an attribute to enable [INFO] [stdout] --> src/main.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(maybe_uninit)] [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(stable_features)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.03s [INFO] running `Command { std: "docker" "inspect" "54877cfb552db103102571d2c1e7b738b60c19204d3edd22b6dec30b7b4837d8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "54877cfb552db103102571d2c1e7b738b60c19204d3edd22b6dec30b7b4837d8", kill_on_drop: false }` [INFO] [stdout] 54877cfb552db103102571d2c1e7b738b60c19204d3edd22b6dec30b7b4837d8