[INFO] fetching crate regex-cli 0.2.1...
[INFO] checking regex-cli-0.2.1 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate regex-cli 0.2.1 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate regex-cli 0.2.1 on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate regex-cli 0.2.1
[INFO] finished tweaking crates.io crate regex-cli 0.2.1
[INFO] tweaked toml for crates.io crate regex-cli 0.2.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate crates.io crate regex-cli 0.2.1 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 013bdf1963ac5cd756a211e77f642958e8fdbd81267f520a97c48ff84bc396cc
[INFO] running `Command { std: "docker" "start" "-a" "013bdf1963ac5cd756a211e77f642958e8fdbd81267f520a97c48ff84bc396cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "013bdf1963ac5cd756a211e77f642958e8fdbd81267f520a97c48ff84bc396cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "013bdf1963ac5cd756a211e77f642958e8fdbd81267f520a97c48ff84bc396cc", kill_on_drop: false }`
[INFO] [stdout] 013bdf1963ac5cd756a211e77f642958e8fdbd81267f520a97c48ff84bc396cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0fc5cdd77de04987b4a5b880141d29ef15f4c0bcf41dfb0a7e2a7904bf646f4d
[INFO] running `Command { std: "docker" "start" "-a" "0fc5cdd77de04987b4a5b880141d29ef15f4c0bcf41dfb0a7e2a7904bf646f4d", kill_on_drop: false }`
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]     Checking unicode-width v0.1.13
[INFO] [stderr]     Checking regex-lite v0.1.6
[INFO] [stderr]     Checking lexopt v0.3.0
[INFO] [stderr]     Checking textwrap v0.16.1
[INFO] [stderr]     Checking tabwriter v1.4.0
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking bstr v1.9.1
[INFO] [stderr]     Checking memmap2 v0.9.4
[INFO] [stderr]     Checking regex-automata v0.4.7
[INFO] [stderr]     Checking regex v1.10.5
[INFO] [stderr]     Checking regex-cli v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Args` is never constructed
[INFO] [stdout]   --> cmd/find/half/mod.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | struct Args {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Args` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Args` is never constructed
[INFO] [stdout]   --> cmd/find/half/mod.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 | struct Args {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Args` has a derived impl for the trait `Default`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.59s
[INFO] running `Command { std: "docker" "inspect" "0fc5cdd77de04987b4a5b880141d29ef15f4c0bcf41dfb0a7e2a7904bf646f4d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fc5cdd77de04987b4a5b880141d29ef15f4c0bcf41dfb0a7e2a7904bf646f4d", kill_on_drop: false }`
[INFO] [stdout] 0fc5cdd77de04987b4a5b880141d29ef15f4c0bcf41dfb0a7e2a7904bf646f4d