[INFO] cloning repository https://github.com/mcastorina/burn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mcastorina/burn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcastorina%2Fburn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcastorina%2Fburn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4a7a6527c9015b5fc936fa0e63da4e6f7f5f2d63
[INFO] checking mcastorina/burn against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcastorina%2Fburn" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mcastorina/burn on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mcastorina/burn
[INFO] finished tweaking git repo https://github.com/mcastorina/burn
[INFO] tweaked toml for git repo https://github.com/mcastorina/burn written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mcastorina/burn 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded logos v0.12.0
[INFO] [stderr]   Downloaded logos-derive v0.12.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a271ab5a541643ce4c242e1bf0b5d758ed4209dc7ac5c4300cfc465c4054ecf4
[INFO] running `Command { std: "docker" "start" "-a" "a271ab5a541643ce4c242e1bf0b5d758ed4209dc7ac5c4300cfc465c4054ecf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a271ab5a541643ce4c242e1bf0b5d758ed4209dc7ac5c4300cfc465c4054ecf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a271ab5a541643ce4c242e1bf0b5d758ed4209dc7ac5c4300cfc465c4054ecf4", kill_on_drop: false }`
[INFO] [stdout] a271ab5a541643ce4c242e1bf0b5d758ed4209dc7ac5c4300cfc465c4054ecf4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c922354234d0750950701efcbcbad145c0ce3e57287501b4990e43979968549
[INFO] running `Command { std: "docker" "start" "-a" "5c922354234d0750950701efcbcbad145c0ce3e57287501b4990e43979968549", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling beef v0.5.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling logos-derive v0.12.0
[INFO] [stderr]     Checking logos v0.12.0
[INFO] [stderr]     Checking burn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `block`
[INFO] [stdout]    --> src/checker/mod.rs:116:31
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn check_block(&mut self, block: &Vec<ast::Stmt>) {}
[INFO] [stdout]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_block`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block`
[INFO] [stdout]    --> src/checker/mod.rs:116:31
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn check_block(&mut self, block: &Vec<ast::Stmt>) {}
[INFO] [stdout]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_block`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fn_names` is never read
[INFO] [stdout]   --> src/checker/mod.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Checker<'a> {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 17 |     items: &'a Vec<ast::Item>,
[INFO] [stdout] 18 |     fn_names: HashMap<String, FnInfo>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `input_params` and `output_params` are never read
[INFO] [stdout]   --> src/checker/mod.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct FnInfo {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 22 |     input_params: Vec<ast::Type>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 23 |     output_params: Vec<ast::Type>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fn_names` is never read
[INFO] [stdout]   --> src/checker/mod.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Checker<'a> {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 17 |     items: &'a Vec<ast::Item>,
[INFO] [stdout] 18 |     fn_names: HashMap<String, FnInfo>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `input_params` and `output_params` are never read
[INFO] [stdout]   --> src/checker/mod.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct FnInfo {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 22 |     input_params: Vec<ast::Type>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 23 |     output_params: Vec<ast::Type>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.45s
[INFO] running `Command { std: "docker" "inspect" "5c922354234d0750950701efcbcbad145c0ce3e57287501b4990e43979968549", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c922354234d0750950701efcbcbad145c0ce3e57287501b4990e43979968549", kill_on_drop: false }`
[INFO] [stdout] 5c922354234d0750950701efcbcbad145c0ce3e57287501b4990e43979968549
[INFO] checking mcastorina/burn against try#f9935d29d867449445ee008640ccca1bf1ae0889+rustflags=-Dtail_expr_drop_order for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmcastorina%2Fburn" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mcastorina/burn on toolchain f9935d29d867449445ee008640ccca1bf1ae0889
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mcastorina/burn
[INFO] finished tweaking git repo https://github.com/mcastorina/burn
[INFO] tweaked toml for git repo https://github.com/mcastorina/burn written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mcastorina/burn 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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65578812a63299546eabe5c9e3d7a1f98d973de9b0db31b980541513808e1bb7
[INFO] running `Command { std: "docker" "start" "-a" "65578812a63299546eabe5c9e3d7a1f98d973de9b0db31b980541513808e1bb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65578812a63299546eabe5c9e3d7a1f98d973de9b0db31b980541513808e1bb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65578812a63299546eabe5c9e3d7a1f98d973de9b0db31b980541513808e1bb7", kill_on_drop: false }`
[INFO] [stdout] 65578812a63299546eabe5c9e3d7a1f98d973de9b0db31b980541513808e1bb7
[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" "+f9935d29d867449445ee008640ccca1bf1ae0889" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0edd7b8b4036957ebd151050a419f2f9506c6dfc562e732a5877c72354ef5477
[INFO] running `Command { std: "docker" "start" "-a" "0edd7b8b4036957ebd151050a419f2f9506c6dfc562e732a5877c72354ef5477", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]    Compiling beef v0.5.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling logos-derive v0.12.0
[INFO] [stderr]     Checking logos v0.12.0
[INFO] [stderr]     Checking burn v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `block`
[INFO] [stdout]    --> src/checker/mod.rs:116:31
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn check_block(&mut self, block: &Vec<ast::Stmt>) {}
[INFO] [stdout]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_block`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `block`
[INFO] [stdout]    --> src/checker/mod.rs:116:31
[INFO] [stdout]     |
[INFO] [stdout] 116 |     fn check_block(&mut self, block: &Vec<ast::Stmt>) {}
[INFO] [stdout]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_block`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fn_names` is never read
[INFO] [stdout]   --> src/checker/mod.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Checker<'a> {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 17 |     items: &'a Vec<ast::Item>,
[INFO] [stdout] 18 |     fn_names: HashMap<String, FnInfo>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `input_params` and `output_params` are never read
[INFO] [stdout]   --> src/checker/mod.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct FnInfo {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 22 |     input_params: Vec<ast::Type>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 23 |     output_params: Vec<ast::Type>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[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/parser/expressions.rs:121:77
[INFO] [stdout]     |
[INFO] [stdout] 121 |                         if let Some(index) = args.iter().position(|a| *a == Expr::Placeholder) {
[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; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `fn_names` is never read
[INFO] [stdout]   --> src/checker/mod.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct Checker<'a> {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 17 |     items: &'a Vec<ast::Item>,
[INFO] [stdout] 18 |     fn_names: HashMap<String, FnInfo>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `input_params` and `output_params` are never read
[INFO] [stdout]   --> src/checker/mod.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct FnInfo {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 22 |     input_params: Vec<ast::Type>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 23 |     output_params: Vec<ast::Type>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[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/parser/expressions.rs:121:77
[INFO] [stdout]     |
[INFO] [stdout] 121 |                         if let Some(index) = args.iter().position(|a| *a == Expr::Placeholder) {
[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] [stderr] error: could not compile `burn` (lib) due to 2 previous errors; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 1 previous error; 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `burn` (lib test) due to 2 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "0edd7b8b4036957ebd151050a419f2f9506c6dfc562e732a5877c72354ef5477", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0edd7b8b4036957ebd151050a419f2f9506c6dfc562e732a5877c72354ef5477", kill_on_drop: false }`
[INFO] [stdout] 0edd7b8b4036957ebd151050a419f2f9506c6dfc562e732a5877c72354ef5477