[INFO] fetching crate fitparser 0.7.0...
[INFO] checking fitparser-0.7.0 against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864
[INFO] extracting crate fitparser 0.7.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate fitparser 0.7.0 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 fitparser 0.7.0
[INFO] finished tweaking crates.io crate fitparser 0.7.0
[INFO] tweaked toml for crates.io crate fitparser 0.7.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate fitparser 0.7.0 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 35422bc23e29bdfdb5cd103b91d5f5769a531dd5b33bed04194c97df9f8d7c4a
[INFO] running `Command { std: "docker" "start" "-a" "35422bc23e29bdfdb5cd103b91d5f5769a531dd5b33bed04194c97df9f8d7c4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "35422bc23e29bdfdb5cd103b91d5f5769a531dd5b33bed04194c97df9f8d7c4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "35422bc23e29bdfdb5cd103b91d5f5769a531dd5b33bed04194c97df9f8d7c4a", kill_on_drop: false }`
[INFO] [stdout] 35422bc23e29bdfdb5cd103b91d5f5769a531dd5b33bed04194c97df9f8d7c4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 5e2d7f79d780e32531fb40c8572f6c1abb24a5d42d81aaf38e9f0a6d7acc81ef
[INFO] running `Command { std: "docker" "start" "-a" "5e2d7f79d780e32531fb40c8572f6c1abb24a5d42d81aaf38e9f0a6d7acc81ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking iana-time-zone v0.1.57
[INFO] [stderr]     Checking ansi_term v0.12.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling serde_json v1.0.105
[INFO] [stderr]     Checking memchr v2.6.3
[INFO] [stderr]    Compiling num-traits v0.2.16
[INFO] [stderr]     Checking itoa v1.0.9
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling syn v2.0.31
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking chrono v0.4.28
[INFO] [stderr]     Checking fitparser v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `field_number` and `developer_data_index` are never read
[INFO] [stdout]    --> src/de/parser.rs:201:5
[INFO] [stdout]     |
[INFO] [stdout] 200 | pub struct DeveloperFieldDefinition {
[INFO] [stdout]     |            ------------------------ fields in this struct
[INFO] [stdout] 201 |     field_number: u8,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 202 |     size: u8,
[INFO] [stdout] 203 |     developer_data_index: u8,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DeveloperFieldDefinition` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `field_number` and `developer_data_index` are never read
[INFO] [stdout]    --> src/de/parser.rs:201:5
[INFO] [stdout]     |
[INFO] [stdout] 200 | pub struct DeveloperFieldDefinition {
[INFO] [stdout]     |            ------------------------ fields in this struct
[INFO] [stdout] 201 |     field_number: u8,
[INFO] [stdout]     |     ^^^^^^^^^^^^
[INFO] [stdout] 202 |     size: u8,
[INFO] [stdout] 203 |     developer_data_index: u8,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DeveloperFieldDefinition` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[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]    --> examples/fit_to_json.rs:111:15
[INFO] [stdout]     |
[INFO] [stdout] 110 |         let mut fp = File::create(outname)?;
[INFO] [stdout]     |             ------ these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 111 |         match fp.write_all(json.as_bytes()) {
[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 `fitparser` (example "fit_to_json") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "5e2d7f79d780e32531fb40c8572f6c1abb24a5d42d81aaf38e9f0a6d7acc81ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e2d7f79d780e32531fb40c8572f6c1abb24a5d42d81aaf38e9f0a6d7acc81ef", kill_on_drop: false }`
[INFO] [stdout] 5e2d7f79d780e32531fb40c8572f6c1abb24a5d42d81aaf38e9f0a6d7acc81ef