[INFO] cloning repository https://github.com/Lapz/undisclosed
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Lapz/undisclosed" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLapz%2Fundisclosed", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLapz%2Fundisclosed'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cc2efbcffb4d63245c74338ea9b314881df18d92
[INFO] checking Lapz/undisclosed/cc2efbcffb4d63245c74338ea9b314881df18d92 against try#4d98531622e1718ae0bc3c7a1ab9cd8938428452+rustflags=-Dtail_expr_drop_order for pr-129604
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLapz%2Fundisclosed" "/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/Lapz/undisclosed 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 git repo https://github.com/Lapz/undisclosed
[INFO] finished tweaking git repo https://github.com/Lapz/undisclosed
[INFO] tweaked toml for git repo https://github.com/Lapz/undisclosed written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Lapz/undisclosed 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] warning: /workspace/builds/worker-0-tc2/source/underscore_x86/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /workspace/builds/worker-0-tc2/source/underscore/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /workspace/builds/worker-0-tc2/source/underscore_util/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /workspace/builds/worker-0-tc2/source/underscore_vm/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /workspace/builds/worker-0-tc2/source/underscore_ir/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /workspace/builds/worker-0-tc2/source/underscore_semant/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /workspace/builds/worker-0-tc2/source/underscore_syntax/Cargo.toml: 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-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b0f2f3ec64ec980a3f72954547615ac5cbe6a6372aad12a4e0d4549f00dad3c
[INFO] running `Command { std: "docker" "start" "-a" "5b0f2f3ec64ec980a3f72954547615ac5cbe6a6372aad12a4e0d4549f00dad3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b0f2f3ec64ec980a3f72954547615ac5cbe6a6372aad12a4e0d4549f00dad3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b0f2f3ec64ec980a3f72954547615ac5cbe6a6372aad12a4e0d4549f00dad3c", kill_on_drop: false }`
[INFO] [stdout] 5b0f2f3ec64ec980a3f72954547615ac5cbe6a6372aad12a4e0d4549f00dad3c
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 28064aa7bfdc15e18ff718df0cd7622f19d55761541f7bb430e23291d0c2d11b
[INFO] running `Command { std: "docker" "start" "-a" "28064aa7bfdc15e18ff718df0cd7622f19d55761541f7bb430e23291d0c2d11b", kill_on_drop: false }`
[INFO] [stderr] warning: /opt/rustwide/workdir/underscore_semant/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /opt/rustwide/workdir/underscore_syntax/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /opt/rustwide/workdir/underscore_util/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /opt/rustwide/workdir/underscore_vm/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /opt/rustwide/workdir/underscore_ir/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /opt/rustwide/workdir/underscore_x86/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr] warning: /opt/rustwide/workdir/underscore/Cargo.toml: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]     Checking libc v0.2.36
[INFO] [stderr]     Checking rand_core v0.1.0-pre.0
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking same-file v1.0.2
[INFO] [stderr]     Checking underscore_vm v0.1.0 (/opt/rustwide/workdir/underscore_vm)
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> underscore_vm/src/op.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn try_from(T) -> Result<Self, Self::Error>;
[INFO] [stdout]    |                 ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: anonymous parameters are deprecated and will be removed in the next edition
[INFO] [stdout]   --> underscore_vm/src/op.rs:34:17
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn try_from(T) -> Result<Self, Self::Error>;
[INFO] [stdout]    |                 ^ help: try naming the parameter or explicitly ignoring it: `_: T`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2018!
[INFO] [stdout]    = note: for more information, see issue #41686 <https://github.com/rust-lang/rust/issues/41686>
[INFO] [stdout]    = note: `#[warn(anonymous_parameters)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking walkdir v2.1.3
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking underscore_util v0.1.0 (/opt/rustwide/workdir/underscore_util)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 142 |                     push!(&self.code.constants[index..index+1] => self.stack,[self.stack_top,1]);
[INFO] [stdout]     |                     ---------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `push` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 152 |                     push!(&self.code.constants[index..index+4] => self.stack,[self.stack_top,4]);
[INFO] [stdout]     |                     ---------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 162 |                     push!(&self.code.constants[index..index+8] => self.stack,[self.stack_top,8]);
[INFO] [stdout]     |                     ---------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 177 |                             push!( &to_bytes!(-a => i8)     => self.stack,[self.stack_top,size]);
[INFO] [stdout]     |                             -------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 182 |                             push!( &to_bytes!(-a => i32)     => self.stack,[self.stack_top,size]);
[INFO] [stdout]     |                             --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 187 |                             push!( &to_bytes!(-a => i64)     => self.stack,[self.stack_top,size]);
[INFO] [stdout]     |                             --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 193 |                 Ok(OpCode::Add) => binary_op!(+,self),
[INFO] [stdout]     |                                    ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` which comes from the expansion of the macro `binary_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 193 |                 Ok(OpCode::Add) => binary_op!(+,self),
[INFO] [stdout]     |                                    ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` which comes from the expansion of the macro `binary_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 193 |                 Ok(OpCode::Add) => binary_op!(+,self),
[INFO] [stdout]     |                                    ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` which comes from the expansion of the macro `binary_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 194 |                 Ok(OpCode::Divide) => binary_op!(/,self),
[INFO] [stdout]     |                                       ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` which comes from the expansion of the macro `binary_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 194 |                 Ok(OpCode::Divide) => binary_op!(/,self),
[INFO] [stdout]     |                                       ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` which comes from the expansion of the macro `binary_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 194 |                 Ok(OpCode::Divide) => binary_op!(/,self),
[INFO] [stdout]     |                                       ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` which comes from the expansion of the macro `binary_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 195 |                 Ok(OpCode::Multiply) => binary_op!(*,self),
[INFO] [stdout]     |                                         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` which comes from the expansion of the macro `binary_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 195 |                 Ok(OpCode::Multiply) => binary_op!(*,self),
[INFO] [stdout]     |                                         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` which comes from the expansion of the macro `binary_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 195 |                 Ok(OpCode::Multiply) => binary_op!(*,self),
[INFO] [stdout]     |                                         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` which comes from the expansion of the macro `binary_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 196 |                 Ok(OpCode::Subtract) => binary_op!(-,self),
[INFO] [stdout]     |                                         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` which comes from the expansion of the macro `binary_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 196 |                 Ok(OpCode::Subtract) => binary_op!(-,self),
[INFO] [stdout]     |                                         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` which comes from the expansion of the macro `binary_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 196 |                 Ok(OpCode::Subtract) => binary_op!(-,self),
[INFO] [stdout]     |                                         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` which comes from the expansion of the macro `binary_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 142 |                     push!(&self.code.constants[index..index+1] => self.stack,[self.stack_top,1]);
[INFO] [stdout]     |                     ---------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout]     = note: this warning originates in the macro `push` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 152 |                     push!(&self.code.constants[index..index+4] => self.stack,[self.stack_top,4]);
[INFO] [stdout]     |                     ---------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 162 |                     push!(&self.code.constants[index..index+8] => self.stack,[self.stack_top,8]);
[INFO] [stdout]     |                     ---------------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 177 |                             push!( &to_bytes!(-a => i8)     => self.stack,[self.stack_top,size]);
[INFO] [stdout]     |                             -------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 182 |                             push!( &to_bytes!(-a => i32)     => self.stack,[self.stack_top,size]);
[INFO] [stdout]     |                             --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 187 |                             push!( &to_bytes!(-a => i64)     => self.stack,[self.stack_top,size]);
[INFO] [stdout]     |                             --------------------------------------------------------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 193 |                 Ok(OpCode::Add) => binary_op!(+,self),
[INFO] [stdout]     |                                    ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` which comes from the expansion of the macro `binary_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 193 |                 Ok(OpCode::Add) => binary_op!(+,self),
[INFO] [stdout]     |                                    ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` which comes from the expansion of the macro `binary_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 193 |                 Ok(OpCode::Add) => binary_op!(+,self),
[INFO] [stdout]     |                                    ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` which comes from the expansion of the macro `binary_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 194 |                 Ok(OpCode::Divide) => binary_op!(/,self),
[INFO] [stdout]     |                                       ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` which comes from the expansion of the macro `binary_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 194 |                 Ok(OpCode::Divide) => binary_op!(/,self),
[INFO] [stdout]     |                                       ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` which comes from the expansion of the macro `binary_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 194 |                 Ok(OpCode::Divide) => binary_op!(/,self),
[INFO] [stdout]     |                                       ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` which comes from the expansion of the macro `binary_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 195 |                 Ok(OpCode::Multiply) => binary_op!(*,self),
[INFO] [stdout]     |                                         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` which comes from the expansion of the macro `binary_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 195 |                 Ok(OpCode::Multiply) => binary_op!(*,self),
[INFO] [stdout]     |                                         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` which comes from the expansion of the macro `binary_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 195 |                 Ok(OpCode::Multiply) => binary_op!(*,self),
[INFO] [stdout]     |                                         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` which comes from the expansion of the macro `binary_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 196 |                 Ok(OpCode::Subtract) => binary_op!(-,self),
[INFO] [stdout]     |                                         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` which comes from the expansion of the macro `binary_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 196 |                 Ok(OpCode::Subtract) => binary_op!(-,self),
[INFO] [stdout]     |                                         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` which comes from the expansion of the macro `binary_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> underscore_vm/src/vm.rs:29:13
[INFO] [stdout]     |
[INFO] [stdout] 29  |         let mut b = &mut$stack[$from..($from + $to)];
[INFO] [stdout]     |             ----^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] ...
[INFO] [stdout] 196 |                 Ok(OpCode::Subtract) => binary_op!(-,self),
[INFO] [stdout]     |                                         ------------------ in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this warning originates in the macro `push` which comes from the expansion of the macro `binary_op` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stdout] warning: 19 warnings emitted
[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]   --> underscore_util/src/emitter.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn error<T: Into<String>>(&self, msg: T, span: Span) {
[INFO] [stdout]    |                                          ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 56 |         self.diagnostics.borrow_mut().push(Diagnostic {
[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 `underscore_util` (lib) due to 2 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]   --> underscore_util/src/emitter.rs:56:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn error<T: Into<String>>(&self, msg: T, span: Span) {
[INFO] [stdout]    |                                          ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024
[INFO] [stdout] 56 |         self.diagnostics.borrow_mut().push(Diagnostic {
[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 `underscore_util` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "28064aa7bfdc15e18ff718df0cd7622f19d55761541f7bb430e23291d0c2d11b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28064aa7bfdc15e18ff718df0cd7622f19d55761541f7bb430e23291d0c2d11b", kill_on_drop: false }`
[INFO] [stdout] 28064aa7bfdc15e18ff718df0cd7622f19d55761541f7bb430e23291d0c2d11b