[INFO] fetching crate fasten 0.8.3...
[INFO] checking fasten-0.8.3 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate fasten 0.8.3 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate fasten 0.8.3 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 fasten 0.8.3
[INFO] finished tweaking crates.io crate fasten 0.8.3
[INFO] tweaked toml for crates.io crate fasten 0.8.3 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate fasten 0.8.3 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] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7c4b6f56e7a1d205b09e6d7f22a6b8b277936aae138125ee446f37572746abf8
[INFO] running `Command { std: "docker" "start" "-a" "7c4b6f56e7a1d205b09e6d7f22a6b8b277936aae138125ee446f37572746abf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c4b6f56e7a1d205b09e6d7f22a6b8b277936aae138125ee446f37572746abf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c4b6f56e7a1d205b09e6d7f22a6b8b277936aae138125ee446f37572746abf8", kill_on_drop: false }`
[INFO] [stdout] 7c4b6f56e7a1d205b09e6d7f22a6b8b277936aae138125ee446f37572746abf8
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1bfe2e6d079ccba624d753bbd5bf0d49a0273c0fc0bb09af70e794ebcc769488
[INFO] running `Command { std: "docker" "start" "-a" "1bfe2e6d079ccba624d753bbd5bf0d49a0273c0fc0bb09af70e794ebcc769488", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking thread-id v3.3.0
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking owning_ref v0.2.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking aho-corasick v1.1.2
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking parking_lot_core v0.2.14
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking smallvec v0.3.4
[INFO] [stderr]     Checking parking_lot v0.3.8
[INFO] [stderr]     Checking crossbeam v0.2.12
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking multiqueue v0.3.2
[INFO] [stderr]    Compiling libz-sys v1.1.12
[INFO] [stderr]    Compiling lz4-sys v1.9.4
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking bam v0.1.4
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking statistical v1.0.0
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking lz4 v1.24.0
[INFO] [stderr]     Checking fastq v0.6.0
[INFO] [stderr]     Checking fasten v0.8.3 (/opt/rustwide/workdir)
[INFO] [stdout] error: this value of type `Option<Result<String, std::io::Error>>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/bin/fasten_replace.rs:94:28
[INFO] [stdout]    |
[INFO] [stdout] 76 |     let find_regex = Regex::new(&find_param)
[INFO] [stdout]    |         ---------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 93 |     let mut buffer_iter = my_buffer.lines();
[INFO] [stdout]    |         --------------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 94 |     while let Some(line) = buffer_iter.next() {
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this changes meaning in Rust 2024
[INFO] [stdout]    = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fasten` (bin "fasten_replace") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this value of type `Result<(), std::io::Error>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]    --> src/bin/fasten_convert.rs:276:14
[INFO] [stdout]     |
[INFO] [stdout] 263 | fn read_fastq(tx:std::sync::mpsc::Sender<FastenSeq>, paired_end:bool){
[INFO] [stdout]     |               -- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 267 |   let mut parser_getter = parser.ref_iter();
[INFO] [stdout]     |       ----------------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 276 |       match &parser_getter.advance() {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2024
[INFO] [stdout]     = note: for more information, see issue #123739 <https://github.com/rust-lang/rust/issues/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
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fasten` (bin "fasten_convert" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "1bfe2e6d079ccba624d753bbd5bf0d49a0273c0fc0bb09af70e794ebcc769488", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bfe2e6d079ccba624d753bbd5bf0d49a0273c0fc0bb09af70e794ebcc769488", kill_on_drop: false }`
[INFO] [stdout] 1bfe2e6d079ccba624d753bbd5bf0d49a0273c0fc0bb09af70e794ebcc769488