[INFO] cloning repository https://github.com/LittleGuest/cffc [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LittleGuest/cffc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLittleGuest%2Fcffc", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLittleGuest%2Fcffc'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 86f87cb87b42d0834cbba6dbe09e7676fb4824db [INFO] checking LittleGuest/cffc against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLittleGuest%2Fcffc" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/LittleGuest/cffc 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/LittleGuest/cffc [INFO] finished tweaking git repo https://github.com/LittleGuest/cffc [INFO] tweaked toml for git repo https://github.com/LittleGuest/cffc written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/LittleGuest/cffc 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 dtoa v0.4.8 [INFO] [stderr] Downloaded serde v1.0.126 [INFO] [stderr] Downloaded quote v1.0.9 [INFO] [stderr] Downloaded proc-macro2 v1.0.27 [INFO] [stderr] Downloaded serde-transcode v1.1.0 [INFO] [stderr] Downloaded ryu v1.0.5 [INFO] [stderr] Downloaded serde_derive v1.0.126 [INFO] [stderr] Downloaded toml v0.5.8 [INFO] [stderr] Downloaded itoa v0.4.7 [INFO] [stderr] Downloaded serde_yaml v0.8.17 [INFO] [stderr] Downloaded serde_json v1.0.64 [INFO] [stderr] Downloaded syn v1.0.72 [INFO] [stderr] Downloaded libc v0.2.95 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 1be5478d8a626cd7ec3a7e35aaa82b32ad85878f9115b5241e1da16ce2f3c3fb [INFO] running `Command { std: "docker" "start" "-a" "1be5478d8a626cd7ec3a7e35aaa82b32ad85878f9115b5241e1da16ce2f3c3fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "1be5478d8a626cd7ec3a7e35aaa82b32ad85878f9115b5241e1da16ce2f3c3fb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1be5478d8a626cd7ec3a7e35aaa82b32ad85878f9115b5241e1da16ce2f3c3fb", kill_on_drop: false }` [INFO] [stdout] 1be5478d8a626cd7ec3a7e35aaa82b32ad85878f9115b5241e1da16ce2f3c3fb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 3286b577e31e3519cb40cc7d9f55194665a00edebffb0c6c08ba0c4a308e6f55 [INFO] running `Command { std: "docker" "start" "-a" "3286b577e31e3519cb40cc7d9f55194665a00edebffb0c6c08ba0c4a308e6f55", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.27 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.72 [INFO] [stderr] Compiling serde_derive v1.0.126 [INFO] [stderr] Compiling serde v1.0.126 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling libc v0.2.95 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Checking dtoa v0.4.8 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking toml v0.5.8 [INFO] [stderr] Checking serde-transcode v1.1.0 [INFO] [stderr] Checking serde_yaml v0.8.17 [INFO] [stderr] Checking cffc v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/convert.rs:239:9 [INFO] [stdout] | [INFO] [stdout] 239 | serde_transcode::transcode(&mut jde, &mut jse); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 239 | let _ = serde_transcode::transcode(&mut jde, &mut jse); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/convert.rs:247:9 [INFO] [stdout] | [INFO] [stdout] 247 | serde_transcode::transcode(&mut jde, &mut tse); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 247 | let _ = serde_transcode::transcode(&mut jde, &mut tse); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.67s [INFO] running `Command { std: "docker" "inspect" "3286b577e31e3519cb40cc7d9f55194665a00edebffb0c6c08ba0c4a308e6f55", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3286b577e31e3519cb40cc7d9f55194665a00edebffb0c6c08ba0c4a308e6f55", kill_on_drop: false }` [INFO] [stdout] 3286b577e31e3519cb40cc7d9f55194665a00edebffb0c6c08ba0c4a308e6f55 [INFO] checking LittleGuest/cffc 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%2FLittleGuest%2Fcffc" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/LittleGuest/cffc 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/LittleGuest/cffc [INFO] finished tweaking git repo https://github.com/LittleGuest/cffc [INFO] tweaked toml for git repo https://github.com/LittleGuest/cffc written to /workspace/builds/worker-2-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/LittleGuest/cffc 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 2e80408664ae45017db87c2fbb17bb92c4ff024a5387194e99f76b3627a6b9b3 [INFO] running `Command { std: "docker" "start" "-a" "2e80408664ae45017db87c2fbb17bb92c4ff024a5387194e99f76b3627a6b9b3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2e80408664ae45017db87c2fbb17bb92c4ff024a5387194e99f76b3627a6b9b3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2e80408664ae45017db87c2fbb17bb92c4ff024a5387194e99f76b3627a6b9b3", kill_on_drop: false }` [INFO] [stdout] 2e80408664ae45017db87c2fbb17bb92c4ff024a5387194e99f76b3627a6b9b3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 83050761364e42b1faf4598d7f59ebc308896a690ae1aabaa3f1a7afd7a61a65 [INFO] running `Command { std: "docker" "start" "-a" "83050761364e42b1faf4598d7f59ebc308896a690ae1aabaa3f1a7afd7a61a65", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.27 [INFO] [stderr] Compiling unicode-xid v0.2.2 [INFO] [stderr] Compiling syn v1.0.72 [INFO] [stderr] Compiling serde_derive v1.0.126 [INFO] [stderr] Compiling serde v1.0.126 [INFO] [stderr] Compiling ryu v1.0.5 [INFO] [stderr] Compiling libc v0.2.95 [INFO] [stderr] Compiling serde_json v1.0.64 [INFO] [stderr] Checking dtoa v0.4.8 [INFO] [stderr] Checking itoa v0.4.7 [INFO] [stderr] Compiling quote v1.0.9 [INFO] [stderr] Checking toml v0.5.8 [INFO] [stderr] Checking serde_yaml v0.8.17 [INFO] [stderr] Checking serde-transcode v1.1.0 [INFO] [stderr] Checking cffc v0.1.0 (/opt/rustwide/workdir) [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/convert.rs:112:9 [INFO] [stdout] | [INFO] [stdout] 108 | fn cto_json(v: T) -> String [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 112 | serde_json::to_string(&v).expect("JSON 序列化失败") [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/convert.rs:119:9 [INFO] [stdout] | [INFO] [stdout] 115 | fn cto_yaml(v: T) -> String [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 119 | serde_yaml::to_string(&v).expect("YAML 序列化失败") [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `cffc` (lib) due to 3 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] --> src/convert.rs:112:9 [INFO] [stdout] | [INFO] [stdout] 108 | fn cto_json(v: T) -> String [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 112 | serde_json::to_string(&v).expect("JSON 序列化失败") [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: these values and local bindings have significant drop implementation that will have a different drop order from that of Edition 2021 [INFO] [stdout] --> src/convert.rs:119:9 [INFO] [stdout] | [INFO] [stdout] 115 | fn cto_yaml(v: T) -> String [INFO] [stdout] | ---- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 119 | serde_yaml::to_string(&v).expect("YAML 序列化失败") [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this changes meaning in Rust 2024 [INFO] [stdout] = note: for more information, see issue #123739 [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/convert.rs:239:9 [INFO] [stdout] | [INFO] [stdout] 239 | serde_transcode::transcode(&mut jde, &mut jse); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 239 | let _ = serde_transcode::transcode(&mut jde, &mut jse); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/convert.rs:247:9 [INFO] [stdout] | [INFO] [stdout] 247 | serde_transcode::transcode(&mut jde, &mut tse); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 247 | let _ = serde_transcode::transcode(&mut jde, &mut tse); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `cffc` (lib test) due to 3 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "83050761364e42b1faf4598d7f59ebc308896a690ae1aabaa3f1a7afd7a61a65", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "83050761364e42b1faf4598d7f59ebc308896a690ae1aabaa3f1a7afd7a61a65", kill_on_drop: false }` [INFO] [stdout] 83050761364e42b1faf4598d7f59ebc308896a690ae1aabaa3f1a7afd7a61a65