[INFO] cloning repository https://github.com/lions-language/rust-toy-language [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lions-language/rust-toy-language" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flions-language%2Frust-toy-language", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flions-language%2Frust-toy-language'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0683e3737381820766ac0fbbf785e8da430cd1d2 [INFO] building lions-language/rust-toy-language against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flions-language%2Frust-toy-language" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/lions-language/rust-toy-language on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/lions-language/rust-toy-language [INFO] finished tweaking git repo https://github.com/lions-language/rust-toy-language [INFO] tweaked toml for git repo https://github.com/lions-language/rust-toy-language written to /workspace/builds/worker-4-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/lions-language/rust-toy-language 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 5 packages to latest compatible versions [INFO] [stderr] Adding proc-macro-error v1.0.4 [INFO] [stderr] Adding proc-macro-error-attr v1.0.4 [INFO] [stderr] Adding try_match v0.3.0 (available: v0.4.2) [INFO] [stderr] Adding try_match_inner v0.4.0 [INFO] [stderr] Adding version_check v0.9.5 [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded derive-new v0.5.9 [INFO] [stderr] Downloaded enum-ordinalize v3.1.10 [INFO] [stderr] Downloaded try_match_inner v0.4.0 [INFO] [stderr] Downloaded educe v0.4.18 [INFO] [stderr] Downloaded try_match v0.3.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] de59592af8f1acd3cb06eb2d9cf59867ba02db3e5f2a26b538f927549da87354 [INFO] running `Command { std: "docker" "start" "-a" "de59592af8f1acd3cb06eb2d9cf59867ba02db3e5f2a26b538f927549da87354", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "de59592af8f1acd3cb06eb2d9cf59867ba02db3e5f2a26b538f927549da87354", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "de59592af8f1acd3cb06eb2d9cf59867ba02db3e5f2a26b538f927549da87354", kill_on_drop: false }` [INFO] [stdout] de59592af8f1acd3cb06eb2d9cf59867ba02db3e5f2a26b538f927549da87354 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2181371ac9421426c9b772cb28804dc244b0943c5f2bee018f9ae78294fb6edb [INFO] running `Command { std: "docker" "start" "-a" "2181371ac9421426c9b772cb28804dc244b0943c5f2bee018f9ae78294fb6edb", kill_on_drop: false }` [INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"` [INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest [INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest [INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions [INFO] [stderr] Compiling proc-macro2 v1.0.36 [INFO] [stderr] Compiling syn v1.0.86 [INFO] [stderr] Compiling matches v0.1.9 [INFO] [stderr] Compiling lexical v0.1.0 (/opt/rustwide/workdir/src/lexical) [INFO] [stderr] Compiling utils v0.1.0 (/opt/rustwide/workdir/src/utils) [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling num-integer v0.1.44 [INFO] [stdout] warning: unused import: `std::ops::Deref` [INFO] [stdout] --> src/utils/src/cell/mod.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::ops::Deref; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: relative drop order changing in Rust 2024 [INFO] [stdout] --> src/utils/src/cell/mod.rs:131:15 [INFO] [stdout] | [INFO] [stdout] 126 | let o = match other.shared() { [INFO] [stdout] | - [INFO] [stdout] | | [INFO] [stdout] | `o` calls a custom destructor [INFO] [stdout] | `o` will be dropped later as of Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 131 | match self.shared() { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | this value will be stored in a temporary; let us call it `#1` [INFO] [stdout] | up until Edition 2021 `#1` is dropped last but will be dropped earlier in Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 135 | } [INFO] [stdout] | - now the temporary value is dropped here, before the local variables in the block or statement [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: most of the time, changing drop order is harmless; inspect the `impl Drop`s for side effects like releasing locks or sending messages [INFO] [stdout] = note: requested on the command line with `-D tail-expr-drop-order` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `utils` (lib) due to 1 previous error; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unreachable pattern [INFO] [stdout] --> src/lexical/src/parser/from_string.rs:86:29 [INFO] [stdout] | [INFO] [stdout] 71 | '.' => self.consume_one_and_return(chars, Token::Period), [INFO] [stdout] | --- matches all the relevant values [INFO] [stdout] ... [INFO] [stdout] 86 | '0'..='9' | '.' => { [INFO] [stdout] | ^^^ no value can reach this [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lexical/src/parser/from_string.rs:104:33 [INFO] [stdout] | [INFO] [stdout] 104 | ... let mut suffix = self.peeking_take_while(chars, |ch| self.is_char(ch)); [INFO] [stdout] | ----^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/lexical/src/parser/from_string.rs:114:25 [INFO] [stdout] | [INFO] [stdout] 114 | let mut s = self.peeking_take_while(chars, |ch| ch != '"'); [INFO] [stdout] | ----^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "2181371ac9421426c9b772cb28804dc244b0943c5f2bee018f9ae78294fb6edb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2181371ac9421426c9b772cb28804dc244b0943c5f2bee018f9ae78294fb6edb", kill_on_drop: false }` [INFO] [stdout] 2181371ac9421426c9b772cb28804dc244b0943c5f2bee018f9ae78294fb6edb