[INFO] cloning repository https://github.com/Hybridlo/interpreter-book [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Hybridlo/interpreter-book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHybridlo%2Finterpreter-book", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHybridlo%2Finterpreter-book'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] fb2c74428311b91018dcce8e42db6ad26cbd1b5c [INFO] checking Hybridlo/interpreter-book/fb2c74428311b91018dcce8e42db6ad26cbd1b5c against try#7014e13d5becc920d4bea3cd87942c8a13d359bf+rustflags=-Dtail_expr_drop_order for pr-129864 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHybridlo%2Finterpreter-book" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Hybridlo/interpreter-book on toolchain 7014e13d5becc920d4bea3cd87942c8a13d359bf [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Hybridlo/interpreter-book [INFO] finished tweaking git repo https://github.com/Hybridlo/interpreter-book [INFO] tweaked toml for git repo https://github.com/Hybridlo/interpreter-book written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/Hybridlo/interpreter-book 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" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 74551130280e7065f48dfa7d8a34c67eb2f19478708bcdb880effb35fa6242a0 [INFO] running `Command { std: "docker" "start" "-a" "74551130280e7065f48dfa7d8a34c67eb2f19478708bcdb880effb35fa6242a0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "74551130280e7065f48dfa7d8a34c67eb2f19478708bcdb880effb35fa6242a0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "74551130280e7065f48dfa7d8a34c67eb2f19478708bcdb880effb35fa6242a0", kill_on_drop: false }` [INFO] [stdout] 74551130280e7065f48dfa7d8a34c67eb2f19478708bcdb880effb35fa6242a0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+7014e13d5becc920d4bea3cd87942c8a13d359bf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 1b53ee55f750c3f1ec97bfe1a7bf1345b3ddd79aaa266ccbc22a79fc1951b605 [INFO] running `Command { std: "docker" "start" "-a" "1b53ee55f750c3f1ec97bfe1a7bf1345b3ddd79aaa266ccbc22a79fc1951b605", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling anyhow v1.0.80 [INFO] [stderr] Checking either v1.10.0 [INFO] [stderr] Compiling convert_case v0.4.0 [INFO] [stderr] Checking itertools v0.12.1 [INFO] [stderr] Compiling derive_more v0.99.17 [INFO] [stderr] Checking interpreter_book v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/ast/expressions.rs:142:18 [INFO] [stdout] | [INFO] [stdout] 142 | .intersperse(", ".to_string()) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] = note: `#[warn(unstable_name_collisions)]` on by default [INFO] [stdout] help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 + #![feature(iter_intersperse)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/ast/expressions.rs:196:18 [INFO] [stdout] | [INFO] [stdout] 196 | .intersperse(", ".to_string()) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 + #![feature(iter_intersperse)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/ast/expressions.rs:142:18 [INFO] [stdout] | [INFO] [stdout] 142 | .intersperse(", ".to_string()) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] = note: `#[warn(unstable_name_collisions)]` on by default [INFO] [stdout] help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 + #![feature(iter_intersperse)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/ast/expressions.rs:217:18 [INFO] [stdout] | [INFO] [stdout] 217 | .intersperse(", ".to_string()) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 + #![feature(iter_intersperse)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/ast/expressions.rs:196:18 [INFO] [stdout] | [INFO] [stdout] 196 | .intersperse(", ".to_string()) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 + #![feature(iter_intersperse)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/ast/expressions.rs:217:18 [INFO] [stdout] | [INFO] [stdout] 217 | .intersperse(", ".to_string()) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 + #![feature(iter_intersperse)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/object/mod.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 26 | / r#" [INFO] [stdout] 27 | | parameters [INFO] [stdout] 28 | | .iter() [INFO] [stdout] 29 | | .map(ToString::to_string) [INFO] [stdout] 30 | | .intersperse(", ".to_string()) [INFO] [stdout] 31 | | .collect::() [INFO] [stdout] 32 | | "# [INFO] [stdout] | |__________^ [INFO] [stdout] | [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 + #![feature(iter_intersperse)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/object/mod.rs:45:9 [INFO] [stdout] | [INFO] [stdout] 45 | / r#" [INFO] [stdout] 46 | | _0 [INFO] [stdout] 47 | | .iter() [INFO] [stdout] 48 | | .map(ToString::to_string) [INFO] [stdout] 49 | | .intersperse(", ".to_string()) [INFO] [stdout] 50 | | .collect::() [INFO] [stdout] 51 | | "# [INFO] [stdout] | |__________^ [INFO] [stdout] | [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 + #![feature(iter_intersperse)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/object/mod.rs:26:9 [INFO] [stdout] | [INFO] [stdout] 26 | / r#" [INFO] [stdout] 27 | | parameters [INFO] [stdout] 28 | | .iter() [INFO] [stdout] 29 | | .map(ToString::to_string) [INFO] [stdout] 30 | | .intersperse(", ".to_string()) [INFO] [stdout] 31 | | .collect::() [INFO] [stdout] 32 | | "# [INFO] [stdout] | |__________^ [INFO] [stdout] | [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 + #![feature(iter_intersperse)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/object/mod.rs:45:9 [INFO] [stdout] | [INFO] [stdout] 45 | / r#" [INFO] [stdout] 46 | | _0 [INFO] [stdout] 47 | | .iter() [INFO] [stdout] 48 | | .map(ToString::to_string) [INFO] [stdout] 49 | | .intersperse(", ".to_string()) [INFO] [stdout] 50 | | .collect::() [INFO] [stdout] 51 | | "# [INFO] [stdout] | |__________^ [INFO] [stdout] | [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 + #![feature(iter_intersperse)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/repl.rs:35:22 [INFO] [stdout] | [INFO] [stdout] 35 | .intersperse("\n\t".to_string()) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 + #![feature(iter_intersperse)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: a method with this name may be added to the standard library in the future [INFO] [stdout] --> src/repl.rs:35:22 [INFO] [stdout] | [INFO] [stdout] 35 | .intersperse("\n\t".to_string()) [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: once this associated item is added to the standard library, the ambiguity may cause an error or change in behavior! [INFO] [stdout] = note: for more information, see issue #48919 [INFO] [stdout] = help: call with fully qualified syntax `itertools::Itertools::intersperse(...)` to keep using the current method [INFO] [stdout] help: add `#![feature(iter_intersperse)]` to the crate attributes to enable `std::iter::Iterator::intersperse` [INFO] [stdout] --> src/main.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 + #![feature(iter_intersperse)] [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `errors` is never used [INFO] [stdout] --> src/parser.rs:53:12 [INFO] [stdout] | [INFO] [stdout] 38 | impl Parser { [INFO] [stdout] | ----------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 53 | pub fn errors(&self) -> &[anyhow::Error] { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: this value of type `std::iter::Zip, std::array::IntoIter<(&str, Box Fn(&'a Expression)>), 3>>` has significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/parser.rs:1241:35 [INFO] [stdout] | [INFO] [stdout] 1208 | let (program, errors) = parser.parse_program(); [INFO] [stdout] | ------- these local bindings with significant drop implementation may observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 1241 | for (actual, expected) in hash_lit.0.iter().zip(expected) { [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] warning: method `errors` is never used [INFO] [stdout] --> src/parser.rs:53:12 [INFO] [stdout] | [INFO] [stdout] 38 | impl Parser { [INFO] [stdout] | ----------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 53 | pub fn errors(&self) -> &[anyhow::Error] { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `interpreter_book` (bin "interpreter_book" test) due to 2 previous errors; 7 warnings emitted [INFO] running `Command { std: "docker" "inspect" "1b53ee55f750c3f1ec97bfe1a7bf1345b3ddd79aaa266ccbc22a79fc1951b605", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1b53ee55f750c3f1ec97bfe1a7bf1345b3ddd79aaa266ccbc22a79fc1951b605", kill_on_drop: false }` [INFO] [stdout] 1b53ee55f750c3f1ec97bfe1a7bf1345b3ddd79aaa266ccbc22a79fc1951b605