[INFO] cloning repository https://github.com/PRL-PRG/rust-r-bcc [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PRL-PRG/rust-r-bcc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPRL-PRG%2Frust-r-bcc", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPRL-PRG%2Frust-r-bcc'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3e881cf2f4ddceb2832e48a6de829634e380847c [INFO] checking PRL-PRG/rust-r-bcc/3e881cf2f4ddceb2832e48a6de829634e380847c 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%2FPRL-PRG%2Frust-r-bcc" "/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/PRL-PRG/rust-r-bcc 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/PRL-PRG/rust-r-bcc [INFO] finished tweaking git repo https://github.com/PRL-PRG/rust-r-bcc [INFO] tweaked toml for git repo https://github.com/PRL-PRG/rust-r-bcc written to /workspace/builds/worker-0-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/PRL-PRG/rust-r-bcc 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-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] 1b397f061d40afe983e600aa20cfa098b5b372ca762a3174a06ed40a0235a2f8 [INFO] running `Command { std: "docker" "start" "-a" "1b397f061d40afe983e600aa20cfa098b5b372ca762a3174a06ed40a0235a2f8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1b397f061d40afe983e600aa20cfa098b5b372ca762a3174a06ed40a0235a2f8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1b397f061d40afe983e600aa20cfa098b5b372ca762a3174a06ed40a0235a2f8", kill_on_drop: false }` [INFO] [stdout] 1b397f061d40afe983e600aa20cfa098b5b372ca762a3174a06ed40a0235a2f8 [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] 479a2837d6c8782422b910a0743d4e69b9408a1658bb2360fe978a2134c8758d [INFO] running `Command { std: "docker" "start" "-a" "479a2837d6c8782422b910a0743d4e69b9408a1658bb2360fe978a2134c8758d", kill_on_drop: false }` [INFO] [stderr] Compiling serde v1.0.197 [INFO] [stderr] Compiling libR-sys v0.6.0 [INFO] [stderr] Checking bumpalo v3.16.0 [INFO] [stderr] Checking similar v2.4.0 [INFO] [stderr] Checking yaml-rust v0.4.5 [INFO] [stderr] Checking console v0.15.8 [INFO] [stderr] Checking test_build v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `DerefMut` [INFO] [stdout] --> src/sexp/sexp.rs:92:27 [INFO] [stdout] | [INFO] [stdout] 92 | use std::ops::{Deref, DerefMut}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `orig_place` [INFO] [stdout] --> src/compiler/compiler.rs:954:9 [INFO] [stdout] | [INFO] [stdout] 954 | orig_place: &'a lang::Lang<'a>, [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_orig_place` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `afun` [INFO] [stdout] --> src/compiler/compiler.rs:1060:9 [INFO] [stdout] | [INFO] [stdout] 1060 | afun: lang::Sym<'a>, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_afun` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `formals` [INFO] [stdout] --> src/compiler/compiler_context.rs:62:54 [INFO] [stdout] | [INFO] [stdout] 62 | pub fn new_function(ctxt : &CompilerContext<'a>, formals : &data::List<'a>, body : &Sexp<'a>) -> Self { [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_formals` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `body` [INFO] [stdout] --> src/compiler/compiler_context.rs:62:81 [INFO] [stdout] | [INFO] [stdout] 62 | pub fn new_function(ctxt : &CompilerContext<'a>, formals : &data::List<'a>, body : &Sexp<'a>) -> Self { [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_body` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:24:13 [INFO] [stdout] | [INFO] [stdout] 24 | RDSRead(RDSReaderError), [INFO] [stdout] | ------- ^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `MainError` 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] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 24 | RDSRead(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:25:14 [INFO] [stdout] | [INFO] [stdout] 25 | RDSWrite(RDSWriterError), [INFO] [stdout] | -------- ^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `MainError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 25 | RDSWrite(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/main.rs:26:8 [INFO] [stdout] | [INFO] [stdout] 26 | IO(std::io::Error), [INFO] [stdout] | -- ^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `MainError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 26 | IO(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/compiler/compiler.rs:22:26 [INFO] [stdout] | [INFO] [stdout] 22 | VariableDoesNotExist(String), [INFO] [stdout] | -------------------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `Warning` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 22 | VariableDoesNotExist(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `call` is never read [INFO] [stdout] --> src/compiler/compiler_context.rs:18:9 [INFO] [stdout] | [INFO] [stdout] 13 | pub struct CompilerContext<'a> { [INFO] [stdout] | --------------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 18 | pub call: Option<&'a lang::Lang<'a>>, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `CompilerContext` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/rds/rds_reader.rs:21:15 [INFO] [stdout] | [INFO] [stdout] 21 | DataError(String), [INFO] [stdout] | --------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `RDSReaderError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 21 | DataError(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/rds/rds_reader.rs:23:8 [INFO] [stdout] | [INFO] [stdout] 23 | IO(std::io::Error), [INFO] [stdout] | -- ^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `RDSReaderError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 23 | IO(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/rds/rds_writer.rs:13:15 [INFO] [stdout] | [INFO] [stdout] 13 | DataError(String), [INFO] [stdout] | --------- ^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `RDSWriterError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 13 | DataError(()), [INFO] [stdout] | ~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/rds/rds_writer.rs:14:8 [INFO] [stdout] | [INFO] [stdout] 14 | IO(std::io::Error), [INFO] [stdout] | -- ^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `RDSWriterError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 14 | IO(()), [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/rds/rds_reader.rs:742:13 [INFO] [stdout] | [INFO] [stdout] 742 | / Err(RDSReaderError::DataError(format!( [INFO] [stdout] 743 | | "Wrong ref index {index}" [INFO] [stdout] 744 | | ))), [INFO] [stdout] | | ^ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | |_______________| [INFO] [stdout] | [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #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; 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `test_build` (bin "test_build") due to 2 previous errors; 14 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] running `Command { std: "docker" "inspect" "479a2837d6c8782422b910a0743d4e69b9408a1658bb2360fe978a2134c8758d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "479a2837d6c8782422b910a0743d4e69b9408a1658bb2360fe978a2134c8758d", kill_on_drop: false }` [INFO] [stdout] 479a2837d6c8782422b910a0743d4e69b9408a1658bb2360fe978a2134c8758d