[INFO] cloning repository https://github.com/irfn/qb-macarons [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/irfn/qb-macarons" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Firfn%2Fqb-macarons", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Firfn%2Fqb-macarons'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1fa521edac89af4865d5c2f7f1dad66d6a425f3a [INFO] checking irfn/qb-macarons against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Firfn%2Fqb-macarons" "/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/irfn/qb-macarons on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/irfn/qb-macarons [INFO] finished tweaking git repo https://github.com/irfn/qb-macarons [INFO] tweaked toml for git repo https://github.com/irfn/qb-macarons written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/irfn/qb-macarons 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "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] [stderr] Downloading crates ... [INFO] [stderr] Downloaded libsqlite3-sys v0.17.1 [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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] ec4861b6c660df97a90f15601e36d0066f5f4e03f686c1be9eb8a6eb6baa4e75 [INFO] running `Command { std: "docker" "start" "-a" "ec4861b6c660df97a90f15601e36d0066f5f4e03f686c1be9eb8a6eb6baa4e75", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ec4861b6c660df97a90f15601e36d0066f5f4e03f686c1be9eb8a6eb6baa4e75", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ec4861b6c660df97a90f15601e36d0066f5f4e03f686c1be9eb8a6eb6baa4e75", kill_on_drop: false }` [INFO] [stdout] ec4861b6c660df97a90f15601e36d0066f5f4e03f686c1be9eb8a6eb6baa4e75 [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" "-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 02cee43274e519cd77792306a7f5a129e9491e741ca21f1cb35c406736e22a3b [INFO] running `Command { std: "docker" "start" "-a" "02cee43274e519cd77792306a7f5a129e9491e741ca21f1cb35c406736e22a3b", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.67 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling pkg-config v0.3.17 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking linked-hash-map v0.5.2 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking fallible-iterator v0.2.0 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking lru-cache v0.1.2 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking fallible-streaming-iterator v0.1.9 [INFO] [stderr] Checking regex-syntax v0.6.16 [INFO] [stderr] Compiling libsqlite3-sys v0.17.1 [INFO] [stderr] Checking aho-corasick v0.7.9 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking rusqlite v0.21.0 [INFO] [stderr] Checking regex v1.3.4 [INFO] [stderr] Checking qb-macarons v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: for loop over a `Result`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/main.rs:56:20 [INFO] [stdout] | [INFO] [stdout] 56 | for dom in preview_clear_cookies(&mut conn, filtered) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to check pattern in a loop use `while let` [INFO] [stdout] | [INFO] [stdout] 56 | while let Ok(dom) = preview_clear_cookies(&mut conn, filtered) { [INFO] [stdout] | ~~~~~~~~~~~~~ ~~~ [INFO] [stdout] help: consider unwrapping the `Result` with `?` to iterate over its contents [INFO] [stdout] | [INFO] [stdout] 56 | for dom in preview_clear_cookies(&mut conn, filtered)? { [INFO] [stdout] | + [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 56 | if let Ok(dom) = preview_clear_cookies(&mut conn, filtered) { [INFO] [stdout] | ~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: for loop over a `Result`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/main.rs:56:20 [INFO] [stdout] | [INFO] [stdout] 56 | for dom in preview_clear_cookies(&mut conn, filtered) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to check pattern in a loop use `while let` [INFO] [stdout] | [INFO] [stdout] 56 | while let Ok(dom) = preview_clear_cookies(&mut conn, filtered) { [INFO] [stdout] | ~~~~~~~~~~~~~ ~~~ [INFO] [stdout] help: consider unwrapping the `Result` with `?` to iterate over its contents [INFO] [stdout] | [INFO] [stdout] 56 | for dom in preview_clear_cookies(&mut conn, filtered)? { [INFO] [stdout] | + [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 56 | if let Ok(dom) = preview_clear_cookies(&mut conn, filtered) { [INFO] [stdout] | ~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.83s [INFO] running `Command { std: "docker" "inspect" "02cee43274e519cd77792306a7f5a129e9491e741ca21f1cb35c406736e22a3b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "02cee43274e519cd77792306a7f5a129e9491e741ca21f1cb35c406736e22a3b", kill_on_drop: false }` [INFO] [stdout] 02cee43274e519cd77792306a7f5a129e9491e741ca21f1cb35c406736e22a3b [INFO] checking irfn/qb-macarons against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Firfn%2Fqb-macarons" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/irfn/qb-macarons on toolchain f9935d29d867449445ee008640ccca1bf1ae0889 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/irfn/qb-macarons [INFO] finished tweaking git repo https://github.com/irfn/qb-macarons [INFO] tweaked toml for git repo https://github.com/irfn/qb-macarons written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/irfn/qb-macarons 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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] dce60eff09a9a0be628ca07b6981ddcc28599aeceed817a1f6360111857f142a [INFO] running `Command { std: "docker" "start" "-a" "dce60eff09a9a0be628ca07b6981ddcc28599aeceed817a1f6360111857f142a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "dce60eff09a9a0be628ca07b6981ddcc28599aeceed817a1f6360111857f142a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dce60eff09a9a0be628ca07b6981ddcc28599aeceed817a1f6360111857f142a", kill_on_drop: false }` [INFO] [stdout] dce60eff09a9a0be628ca07b6981ddcc28599aeceed817a1f6360111857f142a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 03c284591286f981d7baa92efd6a97bd6acb1bbb38a07c333c2e982c775d1249 [INFO] running `Command { std: "docker" "start" "-a" "03c284591286f981d7baa92efd6a97bd6acb1bbb38a07c333c2e982c775d1249", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.67 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling pkg-config v0.3.17 [INFO] [stderr] Checking linked-hash-map v0.5.2 [INFO] [stderr] Checking unicode-width v0.1.7 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking thread_local v1.0.1 [INFO] [stderr] Checking lru-cache v0.1.2 [INFO] [stderr] Checking fallible-iterator v0.2.0 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking regex-syntax v0.6.16 [INFO] [stderr] Checking fallible-streaming-iterator v0.1.9 [INFO] [stderr] Compiling libsqlite3-sys v0.17.1 [INFO] [stderr] Checking aho-corasick v0.7.9 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking rusqlite v0.21.0 [INFO] [stderr] Checking regex v1.3.4 [INFO] [stderr] Checking qb-macarons v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: for loop over a `Result`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/main.rs:56:20 [INFO] [stdout] | [INFO] [stdout] 56 | for dom in preview_clear_cookies(&mut conn, filtered) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to check pattern in a loop use `while let` [INFO] [stdout] | [INFO] [stdout] 56 | while let Ok(dom) = preview_clear_cookies(&mut conn, filtered) { [INFO] [stdout] | ~~~~~~~~~~~~~ ~~~ [INFO] [stdout] help: consider unwrapping the `Result` with `?` to iterate over its contents [INFO] [stdout] | [INFO] [stdout] 56 | for dom in preview_clear_cookies(&mut conn, filtered)? { [INFO] [stdout] | + [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 56 | if let Ok(dom) = preview_clear_cookies(&mut conn, filtered) { [INFO] [stdout] | ~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/main.rs:120:8 [INFO] [stdout] | [INFO] [stdout] 117 | fn read_lines
(filename: P) -> io::Result (filename: P) -> io::Result