[INFO] cloning repository https://github.com/Fancyflame/mcvm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Fancyflame/mcvm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFancyflame%2Fmcvm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFancyflame%2Fmcvm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 08bb19fb77eda01fa8eaa05b1d4c472ed17a69e3
[INFO] checking Fancyflame/mcvm/08bb19fb77eda01fa8eaa05b1d4c472ed17a69e3 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFancyflame%2Fmcvm" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Fancyflame/mcvm 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 git repo https://github.com/Fancyflame/mcvm
[INFO] finished tweaking git repo https://github.com/Fancyflame/mcvm
[INFO] tweaked toml for git repo https://github.com/Fancyflame/mcvm written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Fancyflame/mcvm 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 56df996781d7049ae9387d81f27c4c31df257902d390a8302dddda63b85b4b2d
[INFO] running `Command { std: "docker" "start" "-a" "56df996781d7049ae9387d81f27c4c31df257902d390a8302dddda63b85b4b2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "56df996781d7049ae9387d81f27c4c31df257902d390a8302dddda63b85b4b2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56df996781d7049ae9387d81f27c4c31df257902d390a8302dddda63b85b4b2d", kill_on_drop: false }`
[INFO] [stdout] 56df996781d7049ae9387d81f27c4c31df257902d390a8302dddda63b85b4b2d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] acedbce0f70343cc5a3eeb779bf0cf5299ba61d23a0b682b90dfdbe9ccd3cead
[INFO] running `Command { std: "docker" "start" "-a" "acedbce0f70343cc5a3eeb779bf0cf5299ba61d23a0b682b90dfdbe9ccd3cead", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.150
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]    Compiling const_format_proc_macros v0.2.32
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking const_format v0.2.32
[INFO] [stderr]     Checking mcvm v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/mas/parse.rs:93:46
[INFO] [stdout]    |
[INFO] [stdout] 91 | fn parse_instruction<'a>(
[INFO] [stdout]    |                      -- lifetime `'a` declared here
[INFO] [stdout] 92 |     line_number: usize,
[INFO] [stdout] 93 | ) -> impl FnMut(&'a str) -> IResult<&'a str, FuncOrInst> {
[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: elided lifetime has a name
[INFO] [stdout]    --> src/mas/parse.rs:172:46
[INFO] [stdout]     |
[INFO] [stdout] 168 | fn command_format<'a, P, O, F>(
[INFO] [stdout]     |                   -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 172 | ) -> impl FnMut(&'a str) -> IResult<&'a str, Instruction>
[INFO] [stdout]     |                                              ^^^^^^^^^^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: elided lifetime has a name
[INFO] [stdout]   --> src/mas/parse.rs:93:46
[INFO] [stdout]    |
[INFO] [stdout] 91 | fn parse_instruction<'a>(
[INFO] [stdout]    |                      -- lifetime `'a` declared here
[INFO] [stdout] 92 |     line_number: usize,
[INFO] [stdout] 93 | ) -> impl FnMut(&'a str) -> IResult<&'a str, FuncOrInst> {
[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: elided lifetime has a name
[INFO] [stdout]    --> src/mas/parse.rs:172:46
[INFO] [stdout]     |
[INFO] [stdout] 168 | fn command_format<'a, P, O, F>(
[INFO] [stdout]     |                   -- lifetime `'a` declared here
[INFO] [stdout] ...
[INFO] [stdout] 172 | ) -> impl FnMut(&'a str) -> IResult<&'a str, Instruction>
[INFO] [stdout]     |                                              ^^^^^^^^^^^ this elided lifetime gets resolved as `'a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this value of type `RefMut<'_, String>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/mas/generate/ctx.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn push_str(&self, s: impl AsRef<str>) {
[INFO] [stdout]    |                            - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 25 |         self.content.borrow_mut().push_str(s.as_ref())
[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: this value of type `RefMut<'_, String>` has significant drop implementation that will have a different drop order from that of Edition 2021
[INFO] [stdout]   --> src/mas/generate/ctx.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn push_str(&self, s: impl AsRef<str>) {
[INFO] [stdout]    |                            - these local bindings with significant drop implementation may observe changes in drop order under Edition 2024
[INFO] [stdout] 25 |         self.content.borrow_mut().push_str(s.as_ref())
[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 `args` is never read
[INFO] [stdout]   --> src/mas/mod.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Function<'a> {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 13 |     pub name: &'a str,
[INFO] [stdout] 14 |     pub args: Vec<&'a str>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Function` 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] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mcvm` (bin "mcvm" test) due to 2 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `args` is never read
[INFO] [stdout]   --> src/mas/mod.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Function<'a> {
[INFO] [stdout]    |            -------- field in this struct
[INFO] [stdout] 13 |     pub name: &'a str,
[INFO] [stdout] 14 |     pub args: Vec<&'a str>,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Function` 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] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mcvm` (bin "mcvm") due to 2 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "acedbce0f70343cc5a3eeb779bf0cf5299ba61d23a0b682b90dfdbe9ccd3cead", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "acedbce0f70343cc5a3eeb779bf0cf5299ba61d23a0b682b90dfdbe9ccd3cead", kill_on_drop: false }`
[INFO] [stdout] acedbce0f70343cc5a3eeb779bf0cf5299ba61d23a0b682b90dfdbe9ccd3cead