[INFO] fetching crate mm0b_parser 0.1.4...
[INFO] checking mm0b_parser-0.1.4 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604
[INFO] extracting crate mm0b_parser 0.1.4 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate mm0b_parser 0.1.4 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 crates.io crate mm0b_parser 0.1.4
[INFO] finished tweaking crates.io crate mm0b_parser 0.1.4
[INFO] tweaked toml for crates.io crate mm0b_parser 0.1.4 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.6.0)
[INFO] [stderr]       Adding syn v1.0.109 (latest: v2.0.77)
[INFO] [stderr]       Adding zerocopy v0.5.2 (latest: v0.7.35)
[INFO] [stderr]       Adding zerocopy-derive v0.3.2 (latest: v0.7.35)
[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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 1559cf10469956f54634e1eba61a22839b17afe1f21050a61aca1d859d3f8f4e
[INFO] running `Command { std: "docker" "start" "-a" "1559cf10469956f54634e1eba61a22839b17afe1f21050a61aca1d859d3f8f4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1559cf10469956f54634e1eba61a22839b17afe1f21050a61aca1d859d3f8f4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1559cf10469956f54634e1eba61a22839b17afe1f21050a61aca1d859d3f8f4e", kill_on_drop: false }`
[INFO] [stdout] 1559cf10469956f54634e1eba61a22839b17afe1f21050a61aca1d859d3f8f4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 5b7f30b568cc8362dfbd64a2506279aefb94d5a554b60498b85cd54fa2b57c55
[INFO] running `Command { std: "docker" "start" "-a" "5b7f30b568cc8362dfbd64a2506279aefb94d5a554b60498b85cd54fa2b57c55", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking mm0_util v0.1.4
[INFO] [stderr]    Compiling zerocopy-derive v0.3.2
[INFO] [stderr]     Checking zerocopy v0.5.2
[INFO] [stderr]     Checking mm0b_parser v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `buf` is never read
[INFO] [stdout]     --> src/parser.rs:1020:3
[INFO] [stdout]      |
[INFO] [stdout] 1018 | pub struct HypsEntryRef<'a> {
[INFO] [stdout]      |            ------------ field in this struct
[INFO] [stdout] 1019 |   /// The full file
[INFO] [stdout] 1020 |   buf: &'a [u8],
[INFO] [stdout]      |   ^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `HypsEntryRef` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]     --> src/lib.rs:18:3
[INFO] [stdout]      |
[INFO] [stdout] 18   |   unused,
[INFO] [stdout]      |   ^^^^^^
[INFO] [stdout]      = note: `#[warn(dead_code)]` implied by `#[warn(unused)]`
[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/write.rs:185:14
[INFO] [stdout]     |
[INFO] [stdout] 179 |   pub fn new(proof: W) -> Mm0Writer<W> {
[INFO] [stdout]     |              -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 185 |       proof: TrackSize(proof, 0),
[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] warning: field `buf` is never read
[INFO] [stdout]     --> src/parser.rs:1020:3
[INFO] [stdout]      |
[INFO] [stdout] 1018 | pub struct HypsEntryRef<'a> {
[INFO] [stdout]      |            ------------ field in this struct
[INFO] [stdout] 1019 |   /// The full file
[INFO] [stdout] 1020 |   buf: &'a [u8],
[INFO] [stdout]      |   ^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `HypsEntryRef` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]     --> src/lib.rs:18:3
[INFO] [stdout]      |
[INFO] [stdout] 18   |   unused,
[INFO] [stdout]      |   ^^^^^^
[INFO] [stdout]      = note: `#[warn(dead_code)]` implied by `#[warn(unused)]`
[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/write.rs:185:14
[INFO] [stdout]     |
[INFO] [stdout] 179 |   pub fn new(proof: W) -> Mm0Writer<W> {
[INFO] [stdout]     |              -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] ...
[INFO] [stdout] 185 |       proof: TrackSize(proof, 0),
[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; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mm0b_parser` (lib) due to 2 previous errors; 1 warning emitted
[INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `mm0b_parser` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "5b7f30b568cc8362dfbd64a2506279aefb94d5a554b60498b85cd54fa2b57c55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b7f30b568cc8362dfbd64a2506279aefb94d5a554b60498b85cd54fa2b57c55", kill_on_drop: false }`
[INFO] [stdout] 5b7f30b568cc8362dfbd64a2506279aefb94d5a554b60498b85cd54fa2b57c55