[INFO] fetching crate uppercut 0.4.0... [INFO] checking uppercut-0.4.0 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930 [INFO] extracting crate uppercut 0.4.0 into /workspace/builds/worker-7-tc2/source [INFO] validating manifest of crates.io crate uppercut 0.4.0 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate uppercut 0.4.0 [INFO] finished tweaking crates.io crate uppercut 0.4.0 [INFO] tweaked toml for crates.io crate uppercut 0.4.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate crates.io crate uppercut 0.4.0 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" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 38d4a9a88fad93455a41a6f3eecd8040271185424c0d152b9a3cb5a538441f8f [INFO] running `Command { std: "docker" "start" "-a" "38d4a9a88fad93455a41a6f3eecd8040271185424c0d152b9a3cb5a538441f8f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "38d4a9a88fad93455a41a6f3eecd8040271185424c0d152b9a3cb5a538441f8f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "38d4a9a88fad93455a41a6f3eecd8040271185424c0d152b9a3cb5a538441f8f", kill_on_drop: false }` [INFO] [stdout] 38d4a9a88fad93455a41a6f3eecd8040271185424c0d152b9a3cb5a538441f8f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b2fb6c34af6ca4f7519b9e2b9e966925fb837c174ada805d06b05c3c07707a04 [INFO] running `Command { std: "docker" "start" "-a" "b2fb6c34af6ca4f7519b9e2b9e966925fb837c174ada805d06b05c3c07707a04", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.126 [INFO] [stderr] Compiling autocfg v1.1.0 [INFO] [stderr] Compiling getrandom v0.1.16 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Compiling memchr v2.5.0 [INFO] [stderr] Compiling crossbeam-utils v0.8.8 [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Checking regex-syntax v0.6.26 [INFO] [stderr] Checking unicode-width v0.1.9 [INFO] [stderr] Checking strsim v0.8.0 [INFO] [stderr] Checking vec_map v0.8.2 [INFO] [stderr] Checking humantime v2.1.0 [INFO] [stderr] Checking termcolor v1.1.3 [INFO] [stderr] Checking bytes v1.1.0 [INFO] [stderr] Checking parsed v0.3.0 [INFO] [stderr] Checking bencher v0.1.5 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling num-traits v0.2.15 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Checking crossbeam-channel v0.5.4 [INFO] [stderr] Checking aho-corasick v0.7.18 [INFO] [stderr] Checking num_cpus v1.13.1 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking mio v0.8.3 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking core_affinity v0.5.10 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking uppercut v0.4.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: elided lifetime has a name [INFO] [stdout] --> src/core.rs:211:81 [INFO] [stdout] | [INFO] [stdout] 210 | impl<'a> Runtime<'a> { [INFO] [stdout] | -- lifetime `'a` declared here [INFO] [stdout] 211 | fn new(name: String, host: String, pool: &'a ThreadPool, config: Config) -> Runtime { [INFO] [stdout] | ^^^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking regex v1.5.6 [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Checking env_logger v0.8.4 [INFO] [stdout] error: this value of type `BytesMut` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> examples/paxos.rs:77:9 [INFO] [stdout] | [INFO] [stdout] 38 | let mut buf = BytesMut::with_capacity(1 + 8 + 8); [INFO] [stdout] | ------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 77 | buf.split().to_vec() [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: this value of type `BytesMut` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> examples/gossip.rs:155:9 [INFO] [stdout] | [INFO] [stdout] 125 | let mut buf = BytesMut::new(); [INFO] [stdout] | ------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 155 | buf.split().to_vec() [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] warning: elided lifetime has a name [INFO] [stdout] --> src/core.rs:211:81 [INFO] [stdout] | [INFO] [stdout] 210 | impl<'a> Runtime<'a> { [INFO] [stdout] | -- lifetime `'a` declared here [INFO] [stdout] 211 | fn new(name: String, host: String, pool: &'a ThreadPool, config: Config) -> Runtime { [INFO] [stdout] | ^^^^^^^ this elided lifetime gets resolved as `'a` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(elided_named_lifetimes)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> examples/gossip.rs:52:9 [INFO] [stdout] | [INFO] [stdout] 52 | New(String), [INFO] [stdout] | --- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 52 | New(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> examples/gossip.rs:53:9 [INFO] [stdout] | [INFO] [stdout] 53 | Out(String), [INFO] [stdout] | --- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Event` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 53 | Out(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `uppercut` (example "gossip") due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `uppercut` (example "paxos") due to 2 previous errors [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "b2fb6c34af6ca4f7519b9e2b9e966925fb837c174ada805d06b05c3c07707a04", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b2fb6c34af6ca4f7519b9e2b9e966925fb837c174ada805d06b05c3c07707a04", kill_on_drop: false }` [INFO] [stdout] b2fb6c34af6ca4f7519b9e2b9e966925fb837c174ada805d06b05c3c07707a04