[INFO] cloning repository https://github.com/FauxFaux/fetch-maybe [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FauxFaux/fetch-maybe" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFauxFaux%2Ffetch-maybe", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFauxFaux%2Ffetch-maybe'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 31b719b0d87cdc2f5aaddc99d5337655eaf9f21f [INFO] checking FauxFaux/fetch-maybe/31b719b0d87cdc2f5aaddc99d5337655eaf9f21f against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFauxFaux%2Ffetch-maybe" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/FauxFaux/fetch-maybe on toolchain 4d98531622e1718ae0bc3c7a1ab9cd8938428452 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/FauxFaux/fetch-maybe [INFO] finished tweaking git repo https://github.com/FauxFaux/fetch-maybe [INFO] tweaked toml for git repo https://github.com/FauxFaux/fetch-maybe written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/FauxFaux/fetch-maybe 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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] b175e78f1534adb8f2f8dbd14b7cac338d771602ad9f463ad219848f3ebe2f9e [INFO] running `Command { std: "docker" "start" "-a" "b175e78f1534adb8f2f8dbd14b7cac338d771602ad9f463ad219848f3ebe2f9e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "b175e78f1534adb8f2f8dbd14b7cac338d771602ad9f463ad219848f3ebe2f9e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b175e78f1534adb8f2f8dbd14b7cac338d771602ad9f463ad219848f3ebe2f9e", kill_on_drop: false }` [INFO] [stdout] b175e78f1534adb8f2f8dbd14b7cac338d771602ad9f463ad219848f3ebe2f9e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 40517b306ee5b3646c20ea35902b31a3577b1643aaac792a956ec9d87a00fd3c [INFO] running `Command { std: "docker" "start" "-a" "40517b306ee5b3646c20ea35902b31a3577b1643aaac792a956ec9d87a00fd3c", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.62 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling cc v1.0.45 [INFO] [stderr] Compiling autocfg v0.1.6 [INFO] [stderr] Checking smallvec v0.6.10 [INFO] [stderr] Checking matches v0.1.8 [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling getrandom v0.1.12 [INFO] [stderr] Checking spin v0.5.2 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling memchr v2.2.1 [INFO] [stderr] Checking untrusted v0.7.0 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Checking ppv-lite86 v0.2.5 [INFO] [stderr] Checking unicode-bidi v0.3.4 [INFO] [stderr] Checking percent-encoding v1.0.1 [INFO] [stderr] Checking thread_local v0.3.6 [INFO] [stderr] Checking regex-syntax v0.6.12 [INFO] [stderr] Checking quick-error v1.2.2 [INFO] [stderr] Compiling bitflags v1.2.0 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Checking unicode-normalization v0.1.8 [INFO] [stderr] Checking humantime v1.3.0 [INFO] [stderr] Compiling num-traits v0.2.8 [INFO] [stderr] Compiling num-integer v0.1.41 [INFO] [stderr] Checking remove_dir_all v0.5.2 [INFO] [stderr] Checking rustc-demangle v0.1.16 [INFO] [stderr] Checking unicode-width v0.1.6 [INFO] [stderr] Checking termcolor v1.0.5 [INFO] [stderr] Checking percent-encoding v2.1.0 [INFO] [stderr] Checking c2-chacha v0.2.2 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking qstring v0.6.0 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking chunked_transfer v1.0.0 [INFO] [stderr] Checking ascii v1.0.0 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Checking base64 v0.10.1 [INFO] [stderr] Compiling ring v0.16.9 [INFO] [stderr] Compiling backtrace-sys v0.1.31 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking filetime v0.2.7 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking rand v0.7.2 [INFO] [stderr] Checking idna v0.1.5 [INFO] [stderr] Checking idna v0.2.0 [INFO] [stderr] Checking chrono v0.4.9 [INFO] [stderr] Checking backtrace v0.3.38 [INFO] [stderr] Checking regex v1.3.1 [INFO] [stderr] Checking url v1.7.2 [INFO] [stderr] Checking url v2.1.0 [INFO] [stderr] Checking tempfile v3.1.0 [INFO] [stderr] Checking tempfile-fast v0.3.1 [INFO] [stderr] Checking env_logger v0.6.2 [INFO] [stderr] Checking cookie v0.12.0 [INFO] [stderr] Checking pretty_env_logger v0.3.1 [INFO] [stderr] Compiling synstructure v0.10.2 [INFO] [stderr] Checking webpki v0.21.0 [INFO] [stderr] Checking sct v0.6.0 [INFO] [stderr] Checking webpki-roots v0.17.0 [INFO] [stderr] Checking rustls v0.16.0 [INFO] [stderr] Checking failure v0.1.5 [INFO] [stderr] Checking ureq v0.11.1 [INFO] [stderr] Checking fetch-maybe v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::path::PathBuf` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::path::PathBuf; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `log::error` [INFO] [stdout] --> src/main.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | use log::error; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::path::PathBuf` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::path::PathBuf; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `log::error` [INFO] [stdout] --> src/main.rs:13:5 [INFO] [stdout] | [INFO] [stdout] 13 | use log::error; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Parts` is never constructed [INFO] [stdout] --> src/period.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct Parts<'s> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/period.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 7 | impl<'s> Parts<'s> { [INFO] [stdout] | ------------------ associated function in this implementation [INFO] [stdout] 8 | fn new(inner: &str) -> Parts { [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:85:23 [INFO] [stdout] | [INFO] [stdout] 85 | .and_then(|m| m.modified().ok()) [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Parts` is never constructed [INFO] [stdout] --> src/period.rs:3:8 [INFO] [stdout] | [INFO] [stdout] 3 | struct Parts<'s> { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/period.rs:8:8 [INFO] [stdout] | [INFO] [stdout] 7 | impl<'s> Parts<'s> { [INFO] [stdout] | ------------------ associated function in this implementation [INFO] [stdout] 8 | fn new(inner: &str) -> Parts { [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:85:23 [INFO] [stdout] | [INFO] [stdout] 85 | .and_then(|m| m.modified().ok()) [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `fetch-maybe` (bin "fetch-maybe") due to 2 previous errors; 4 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `fetch-maybe` (bin "fetch-maybe" test) due to 2 previous errors; 4 warnings emitted [INFO] running `Command { std: "docker" "inspect" "40517b306ee5b3646c20ea35902b31a3577b1643aaac792a956ec9d87a00fd3c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "40517b306ee5b3646c20ea35902b31a3577b1643aaac792a956ec9d87a00fd3c", kill_on_drop: false }` [INFO] [stdout] 40517b306ee5b3646c20ea35902b31a3577b1643aaac792a956ec9d87a00fd3c