[INFO] cloning repository https://github.com/NLincoln/u-cc [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NLincoln/u-cc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNLincoln%2Fu-cc", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNLincoln%2Fu-cc'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 39578056809cba704098974f8488f50d5d2d3ab0 [INFO] checking NLincoln/u-cc/39578056809cba704098974f8488f50d5d2d3ab0 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%2FNLincoln%2Fu-cc" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/NLincoln/u-cc 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/NLincoln/u-cc [INFO] finished tweaking git repo https://github.com/NLincoln/u-cc [INFO] tweaked toml for git repo https://github.com/NLincoln/u-cc written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/NLincoln/u-cc 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 7031492f4e79768ef6820296df5481355b1ee3968d065031f0b3adf984760b75 [INFO] running `Command { std: "docker" "start" "-a" "7031492f4e79768ef6820296df5481355b1ee3968d065031f0b3adf984760b75", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7031492f4e79768ef6820296df5481355b1ee3968d065031f0b3adf984760b75", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7031492f4e79768ef6820296df5481355b1ee3968d065031f0b3adf984760b75", kill_on_drop: false }` [INFO] [stdout] 7031492f4e79768ef6820296df5481355b1ee3968d065031f0b3adf984760b75 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] f51a470c25515eeee6d1ef6c268210d870a3734f20c01e017e2b9cf5549a3837 [INFO] running `Command { std: "docker" "start" "-a" "f51a470c25515eeee6d1ef6c268210d870a3734f20c01e017e2b9cf5549a3837", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.50 [INFO] [stderr] Compiling rand_core v0.4.0 [INFO] [stderr] Compiling autocfg v0.1.2 [INFO] [stderr] Compiling proc-macro2 v0.4.27 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Compiling typenum v1.10.0 [INFO] [stderr] Compiling siphasher v0.2.3 [INFO] [stderr] Compiling lazy_static v1.3.0 [INFO] [stderr] Compiling serde v1.0.89 [INFO] [stderr] Compiling syn v0.15.29 [INFO] [stderr] Compiling regex v1.1.2 [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Compiling string_cache_shared v0.3.0 [INFO] [stderr] Checking bitflags v1.0.4 [INFO] [stderr] Compiling ucd-util v0.1.3 [INFO] [stderr] Compiling byte-tools v0.3.1 [INFO] [stderr] Compiling thread_local v0.3.6 [INFO] [stderr] Compiling phf_shared v0.7.24 [INFO] [stderr] Compiling utf8-ranges v1.0.2 [INFO] [stderr] Compiling block-padding v0.1.3 [INFO] [stderr] Compiling cfg-if v0.1.7 [INFO] [stderr] Compiling log v0.4.6 [INFO] [stderr] Compiling regex-syntax v0.6.5 [INFO] [stderr] Compiling nix v0.13.0 [INFO] [stderr] Compiling either v1.5.1 [INFO] [stderr] Compiling term v0.4.6 [INFO] [stderr] Compiling fixedbitset v0.1.9 [INFO] [stderr] Compiling rand_core v0.3.1 [INFO] [stderr] Compiling rand_jitter v0.1.3 [INFO] [stderr] Compiling precomputed-hash v0.1.1 [INFO] [stderr] Compiling rand_xorshift v0.1.1 [INFO] [stderr] Compiling rand_hc v0.1.0 [INFO] [stderr] Compiling rand_isaac v0.1.1 [INFO] [stderr] Compiling new_debug_unreachable v1.0.3 [INFO] [stderr] Compiling strsim v0.7.0 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling bit-vec v0.5.0 [INFO] [stderr] Compiling ordermap v0.3.5 [INFO] [stderr] Compiling aho-corasick v0.6.10 [INFO] [stderr] Compiling winapi v0.3.6 [INFO] [stderr] Compiling fake-simd v0.1.2 [INFO] [stderr] Compiling opaque-debug v0.2.2 [INFO] [stderr] Compiling quote v0.6.11 [INFO] [stderr] Compiling ascii-canvas v1.0.0 [INFO] [stderr] Compiling petgraph v0.4.13 [INFO] [stderr] Compiling bit-set v0.5.0 [INFO] [stderr] Compiling ena v0.11.0 [INFO] [stderr] Compiling itertools v0.8.0 [INFO] [stderr] Compiling lalrpop-util v0.16.3 [INFO] [stderr] Compiling diff v0.1.11 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Compiling atty v0.2.11 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Checking unicode-width v0.1.5 [INFO] [stderr] Compiling generic-array v0.12.0 [INFO] [stderr] Checking textwrap v0.10.0 [INFO] [stderr] Checking shared_child v0.3.3 [INFO] [stderr] Checking lazycell v1.2.1 [INFO] [stderr] Checking vec_map v0.8.1 [INFO] [stderr] Checking ansi_term v0.11.0 [INFO] [stderr] Checking colored v1.7.0 [INFO] [stderr] Compiling digest v0.8.0 [INFO] [stderr] Compiling block-buffer v0.7.0 [INFO] [stderr] Compiling sha2 v0.8.0 [INFO] [stderr] Checking clap v2.32.0 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Compiling string_cache_codegen v0.4.2 [INFO] [stderr] Compiling string_cache v0.7.3 [INFO] [stderr] Compiling serde_derive v1.0.89 [INFO] [stderr] Checking os_pipe v0.8.1 [INFO] [stderr] Checking duct v0.12.0 [INFO] [stderr] Checking u-cc-test v0.1.0 (/opt/rustwide/workdir/u-cc-test) [INFO] [stdout] warning: unused import: `env` [INFO] [stdout] --> u-cc-test/src/main.rs:3:11 [INFO] [stdout] | [INFO] [stdout] 3 | use std::{env, fs, io}; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `env` [INFO] [stdout] --> u-cc-test/src/main.rs:3:11 [INFO] [stdout] | [INFO] [stdout] 3 | use std::{env, fs, io}; [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [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] --> u-cc-test/src/main.rs:146:62 [INFO] [stdout] | [INFO] [stdout] 146 | .map(|test_case| -> io::Result<_> { Ok(TestCase::new(test_case?.path())) })) [INFO] [stdout] | --------- ^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> u-cc-test/src/main.rs:146:62 [INFO] [stdout] | [INFO] [stdout] 146 | .map(|test_case| -> io::Result<_> { Ok(TestCase::new(test_case?.path())) })) [INFO] [stdout] | --------- ^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [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; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `u-cc-test` (bin "u-cc-test" test) due to 2 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `u-cc-test` (bin "u-cc-test") due to 2 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "f51a470c25515eeee6d1ef6c268210d870a3734f20c01e017e2b9cf5549a3837", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f51a470c25515eeee6d1ef6c268210d870a3734f20c01e017e2b9cf5549a3837", kill_on_drop: false }` [INFO] [stdout] f51a470c25515eeee6d1ef6c268210d870a3734f20c01e017e2b9cf5549a3837