[INFO] fetching crate exam 0.0.3...
[INFO] checking exam-0.0.3 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604
[INFO] extracting crate exam 0.0.3 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate exam 0.0.3 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 exam 0.0.3
[INFO] finished tweaking crates.io crate exam 0.0.3
[INFO] tweaked toml for crates.io crate exam 0.0.3 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate crates.io crate exam 0.0.3 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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] a829b9b62f89ba532c26aa3f5c64abcb96cb7a8cdb11e05c080c5674ed6e216b
[INFO] running `Command { std: "docker" "start" "-a" "a829b9b62f89ba532c26aa3f5c64abcb96cb7a8cdb11e05c080c5674ed6e216b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a829b9b62f89ba532c26aa3f5c64abcb96cb7a8cdb11e05c080c5674ed6e216b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a829b9b62f89ba532c26aa3f5c64abcb96cb7a8cdb11e05c080c5674ed6e216b", kill_on_drop: false }`
[INFO] [stdout] a829b9b62f89ba532c26aa3f5c64abcb96cb7a8cdb11e05c080c5674ed6e216b
[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] 33dc515354da5d176170dc764bb33aaf32000c89482f10761549afece4c409dd
[INFO] running `Command { std: "docker" "start" "-a" "33dc515354da5d176170dc764bb33aaf32000c89482f10761549afece4c409dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.94
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking exam v0.0.3 (/opt/rustwide/workdir)
[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/lib.rs:79:14
[INFO] [stdout]    |
[INFO] [stdout] 78 |           self.map.remove(&TypeId::of::<T>()).map(|exam| {
[INFO] [stdout]    |                                                    ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 79 |               *exam
[INFO] [stdout]    |  ______________^
[INFO] [stdout] 80 | |                 .downcast::<T>()
[INFO] [stdout] 81 | |                 .map_err(|_| panic!("This downcast shouldn't fail"))
[INFO] [stdout] 82 | |                 .unwrap()
[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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/exams.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn from_io_err(error: std::io::Error) -> ExamFailure {
[INFO] [stdout]    |                --------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 15 |     ExamFailure {
[INFO] [stdout] 16 |         error: error.into(),
[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] 
[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/exams.rs:23:16
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn from_output<E: std::error::Error + 'static>(error: E, output: Output) -> ExamFailure {
[INFO] [stdout]    |                                                -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 22 |     ExamFailure {
[INFO] [stdout] 23 |         error: error.into(),
[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] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exam` (lib test) due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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/lib.rs:79:14
[INFO] [stdout]    |
[INFO] [stdout] 78 |           self.map.remove(&TypeId::of::<T>()).map(|exam| {
[INFO] [stdout]    |                                                    ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 79 |               *exam
[INFO] [stdout]    |  ______________^
[INFO] [stdout] 80 | |                 .downcast::<T>()
[INFO] [stdout] 81 | |                 .map_err(|_| panic!("This downcast shouldn't fail"))
[INFO] [stdout] 82 | |                 .unwrap()
[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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/exams.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn from_io_err(error: std::io::Error) -> ExamFailure {
[INFO] [stdout]    |                --------------------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 15 |     ExamFailure {
[INFO] [stdout] 16 |         error: error.into(),
[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] 
[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/exams.rs:23:16
[INFO] [stdout]    |
[INFO] [stdout] 21 | fn from_output<E: std::error::Error + 'static>(error: E, output: Output) -> ExamFailure {
[INFO] [stdout]    |                                                -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 22 |     ExamFailure {
[INFO] [stdout] 23 |         error: error.into(),
[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] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exam` (lib) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "33dc515354da5d176170dc764bb33aaf32000c89482f10761549afece4c409dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33dc515354da5d176170dc764bb33aaf32000c89482f10761549afece4c409dd", kill_on_drop: false }`
[INFO] [stdout] 33dc515354da5d176170dc764bb33aaf32000c89482f10761549afece4c409dd