[INFO] cloning repository https://github.com/kk1fff/backprop [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kk1fff/backprop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkk1fff%2Fbackprop", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkk1fff%2Fbackprop'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] d1f30e9edd4f6f5cbd325482566ab28cd9c8b54f [INFO] checking kk1fff/backprop against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkk1fff%2Fbackprop" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/kk1fff/backprop 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/kk1fff/backprop [INFO] finished tweaking git repo https://github.com/kk1fff/backprop [INFO] tweaked toml for git repo https://github.com/kk1fff/backprop written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/kk1fff/backprop 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] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 002ad3563494795c9aeeceffa9f5abd9f7938f883a644337840f29cf16606e9a [INFO] running `Command { std: "docker" "start" "-a" "002ad3563494795c9aeeceffa9f5abd9f7938f883a644337840f29cf16606e9a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "002ad3563494795c9aeeceffa9f5abd9f7938f883a644337840f29cf16606e9a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "002ad3563494795c9aeeceffa9f5abd9f7938f883a644337840f29cf16606e9a", kill_on_drop: false }` [INFO] [stdout] 002ad3563494795c9aeeceffa9f5abd9f7938f883a644337840f29cf16606e9a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 224de4bd632006a1be3806e4cb34558e716cd52c3eb921b83d140d988bf9167a [INFO] running `Command { std: "docker" "start" "-a" "224de4bd632006a1be3806e4cb34558e716cd52c3eb921b83d140d988bf9167a", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Checking backprop v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `name` is never read [INFO] [stdout] --> src/main.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 41 | struct AddFunc { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 46 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name` and `op_set` are never read [INFO] [stdout] --> src/main.rs:93:5 [INFO] [stdout] | [INFO] [stdout] 88 | struct MultiplyFunc { [INFO] [stdout] | ------------ fields in this struct [INFO] [stdout] ... [INFO] [stdout] 93 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 94 | op_set: HashSet, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `name` is never read [INFO] [stdout] --> src/main.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 41 | struct AddFunc { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 46 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name` and `op_set` are never read [INFO] [stdout] --> src/main.rs:93:5 [INFO] [stdout] | [INFO] [stdout] 88 | struct MultiplyFunc { [INFO] [stdout] | ------------ fields in this struct [INFO] [stdout] ... [INFO] [stdout] 93 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 94 | op_set: HashSet, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.05s [INFO] running `Command { std: "docker" "inspect" "224de4bd632006a1be3806e4cb34558e716cd52c3eb921b83d140d988bf9167a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "224de4bd632006a1be3806e4cb34558e716cd52c3eb921b83d140d988bf9167a", kill_on_drop: false }` [INFO] [stdout] 224de4bd632006a1be3806e4cb34558e716cd52c3eb921b83d140d988bf9167a [INFO] checking kk1fff/backprop 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%2Fkk1fff%2Fbackprop" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/kk1fff/backprop 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/kk1fff/backprop [INFO] finished tweaking git repo https://github.com/kk1fff/backprop [INFO] tweaked toml for git repo https://github.com/kk1fff/backprop written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/kk1fff/backprop 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] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] cc4a13c2c3eabaf05ceffdf500bbc0351344c47f07adba80f52a02c70491643b [INFO] running `Command { std: "docker" "start" "-a" "cc4a13c2c3eabaf05ceffdf500bbc0351344c47f07adba80f52a02c70491643b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "cc4a13c2c3eabaf05ceffdf500bbc0351344c47f07adba80f52a02c70491643b", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "cc4a13c2c3eabaf05ceffdf500bbc0351344c47f07adba80f52a02c70491643b", kill_on_drop: false }` [INFO] [stdout] cc4a13c2c3eabaf05ceffdf500bbc0351344c47f07adba80f52a02c70491643b [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 8119ae35ecc7093a82b388faa54b3af893689c9075dfbfdeccea6df23f3a777a [INFO] running `Command { std: "docker" "start" "-a" "8119ae35ecc7093a82b388faa54b3af893689c9075dfbfdeccea6df23f3a777a", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Checking backprop v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `name` is never read [INFO] [stdout] --> src/main.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 41 | struct AddFunc { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 46 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `name` is never read [INFO] [stdout] --> src/main.rs:46:5 [INFO] [stdout] | [INFO] [stdout] 41 | struct AddFunc { [INFO] [stdout] | ------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 46 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name` and `op_set` are never read [INFO] [stdout] --> src/main.rs:93:5 [INFO] [stdout] | [INFO] [stdout] 88 | struct MultiplyFunc { [INFO] [stdout] | ------------ fields in this struct [INFO] [stdout] ... [INFO] [stdout] 93 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 94 | op_set: HashSet, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `name` and `op_set` are never read [INFO] [stdout] --> src/main.rs:93:5 [INFO] [stdout] | [INFO] [stdout] 88 | struct MultiplyFunc { [INFO] [stdout] | ------------ fields in this struct [INFO] [stdout] ... [INFO] [stdout] 93 | name: String, [INFO] [stdout] | ^^^^ [INFO] [stdout] 94 | op_set: HashSet, [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/main.rs:106:21 [INFO] [stdout] | [INFO] [stdout] 99 | fn new(op1: Op1, op2: Op2, name: &str) -> MultiplyFunc { [INFO] [stdout] | -------- -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 106 | op_set: HashSet::new() [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/main.rs:106:21 [INFO] [stdout] | [INFO] [stdout] 99 | fn new(op1: Op1, op2: Op2, name: &str) -> MultiplyFunc { [INFO] [stdout] | -------- -------- these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] | | [INFO] [stdout] | these values have significant drop implementation and will observe changes in drop order under Edition 2024 [INFO] [stdout] ... [INFO] [stdout] 106 | op_set: HashSet::new() [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; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `backprop` (bin "backprop") due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `backprop` (bin "backprop" test) due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "8119ae35ecc7093a82b388faa54b3af893689c9075dfbfdeccea6df23f3a777a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8119ae35ecc7093a82b388faa54b3af893689c9075dfbfdeccea6df23f3a777a", kill_on_drop: false }` [INFO] [stdout] 8119ae35ecc7093a82b388faa54b3af893689c9075dfbfdeccea6df23f3a777a