[INFO] cloning repository https://github.com/LabCloudComputing/course-system-tester [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LabCloudComputing/course-system-tester" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLabCloudComputing%2Fcourse-system-tester", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLabCloudComputing%2Fcourse-system-tester'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] fa38431c61aee884c668b2d735fa86282548e2cc [INFO] checking LabCloudComputing/course-system-tester/fa38431c61aee884c668b2d735fa86282548e2cc 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%2FLabCloudComputing%2Fcourse-system-tester" "/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/LabCloudComputing/course-system-tester 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/LabCloudComputing/course-system-tester [INFO] finished tweaking git repo https://github.com/LabCloudComputing/course-system-tester [INFO] tweaked toml for git repo https://github.com/LabCloudComputing/course-system-tester written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/LabCloudComputing/course-system-tester 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] 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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9dd9541910d006b1c8609bc3e2359a44f44f4b3d938bdca33da2de3c9c527fcc [INFO] running `Command { std: "docker" "start" "-a" "9dd9541910d006b1c8609bc3e2359a44f44f4b3d938bdca33da2de3c9c527fcc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9dd9541910d006b1c8609bc3e2359a44f44f4b3d938bdca33da2de3c9c527fcc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9dd9541910d006b1c8609bc3e2359a44f44f4b3d938bdca33da2de3c9c527fcc", kill_on_drop: false }` [INFO] [stdout] 9dd9541910d006b1c8609bc3e2359a44f44f4b3d938bdca33da2de3c9c527fcc [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" "+4d98531622e1718ae0bc3c7a1ab9cd8938428452" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 04a20562aa43d9d941862e1dd103f5b17dd463d4ebd80c0026d6933cd7ec82e4 [INFO] running `Command { std: "docker" "start" "-a" "04a20562aa43d9d941862e1dd103f5b17dd463d4ebd80c0026d6933cd7ec82e4", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.37 [INFO] [stderr] Compiling syn v1.0.92 [INFO] [stderr] Compiling libc v0.2.125 [INFO] [stderr] Compiling serde_derive v1.0.137 [INFO] [stderr] Compiling num-traits v0.2.14 [INFO] [stderr] Compiling serde v1.0.137 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling indexmap v1.8.1 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Compiling num-integer v0.1.45 [INFO] [stderr] Compiling lock_api v0.4.7 [INFO] [stderr] Compiling parking_lot_core v0.9.3 [INFO] [stderr] Compiling log v0.4.16 [INFO] [stderr] Checking linked-hash-map v0.5.4 [INFO] [stderr] Checking traitobject v0.1.0 [INFO] [stderr] Checking smallvec v1.8.0 [INFO] [stderr] Compiling anyhow v1.0.57 [INFO] [stderr] Compiling serde_json v1.0.80 [INFO] [stderr] Checking yaml-rust v0.4.5 [INFO] [stderr] Checking unsafe-any v0.4.2 [INFO] [stderr] Compiling quote v1.0.18 [INFO] [stderr] Compiling heck v0.4.0 [INFO] [stderr] Checking os_str_bytes v6.0.0 [INFO] [stderr] Checking time v0.1.44 [INFO] [stderr] Checking clap_lex v0.2.0 [INFO] [stderr] Checking thread-id v4.0.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking typemap v0.3.3 [INFO] [stderr] Checking strsim v0.10.0 [INFO] [stderr] Checking parking_lot v0.12.0 [INFO] [stderr] Checking log-mdc v0.1.0 [INFO] [stderr] Checking ordered-float v2.10.0 [INFO] [stderr] Checking termcolor v1.1.3 [INFO] [stderr] Checking arc-swap v1.5.0 [INFO] [stderr] Checking textwrap v0.15.0 [INFO] [stderr] Checking chrono v0.4.19 [INFO] [stderr] Compiling thiserror-impl v1.0.31 [INFO] [stderr] Compiling derivative v2.2.0 [INFO] [stderr] Compiling clap_derive v3.1.7 [INFO] [stderr] Checking thiserror v1.0.31 [INFO] [stderr] Checking clap v3.1.14 [INFO] [stderr] Checking serde-value v0.7.0 [INFO] [stderr] Checking serde_yaml v0.8.23 [INFO] [stderr] Checking log4rs v1.1.1 [INFO] [stderr] Checking course-system-tester v0.5.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `crate::Version` [INFO] [stdout] --> src/cmd/run/perf.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | use crate::Version; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `crate::Version` [INFO] [stdout] --> src/cmd/run/perf.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | use crate::Version; [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `version` [INFO] [stdout] --> src/main.rs:94:5 [INFO] [stdout] | [INFO] [stdout] 94 | version: Version, [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_version` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `mode` [INFO] [stdout] --> src/main.rs:95:5 [INFO] [stdout] | [INFO] [stdout] 95 | mode: &String, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_mode` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:115:17 [INFO] [stdout] | [INFO] [stdout] 115 | let mut vnic = &mut stores_vnics[i][j]; [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/main.rs:144:17 [INFO] [stdout] | [INFO] [stdout] 144 | let mut vnic = &mut stores_vnics[i][j]; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [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/utils/server.rs:30:11 [INFO] [stdout] | [INFO] [stdout] 27 | let mut server = run(dir, cmd)?; [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 30 | match server.try_wait() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [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; 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `course-system-tester` (bin "course-system-tester") due to 2 previous errors; 5 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: unused variable: `version` [INFO] [stdout] --> src/main.rs:94:5 [INFO] [stdout] | [INFO] [stdout] 94 | version: Version, [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_version` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `mode` [INFO] [stdout] --> src/main.rs:95:5 [INFO] [stdout] | [INFO] [stdout] 95 | mode: &String, [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_mode` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:115:17 [INFO] [stdout] | [INFO] [stdout] 115 | let mut vnic = &mut stores_vnics[i][j]; [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/main.rs:144:17 [INFO] [stdout] | [INFO] [stdout] 144 | let mut vnic = &mut stores_vnics[i][j]; [INFO] [stdout] | ----^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [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/utils/server.rs:30:11 [INFO] [stdout] | [INFO] [stdout] 27 | let mut server = run(dir, cmd)?; [INFO] [stdout] | ------ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 30 | match server.try_wait() { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ these values have significant drop implementation and will observe changes in drop order under Edition 2024 [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; 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `course-system-tester` (bin "course-system-tester" test) due to 2 previous errors; 5 warnings emitted [INFO] running `Command { std: "docker" "inspect" "04a20562aa43d9d941862e1dd103f5b17dd463d4ebd80c0026d6933cd7ec82e4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "04a20562aa43d9d941862e1dd103f5b17dd463d4ebd80c0026d6933cd7ec82e4", kill_on_drop: false }` [INFO] [stdout] 04a20562aa43d9d941862e1dd103f5b17dd463d4ebd80c0026d6933cd7ec82e4