[INFO] cloning repository https://github.com/sbwtw/regex-gen [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sbwtw/regex-gen" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsbwtw%2Fregex-gen", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsbwtw%2Fregex-gen'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] a703acd1984705229cb1706a2ebcaaa37ed9bf1e [INFO] checking sbwtw/regex-gen against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsbwtw%2Fregex-gen" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sbwtw/regex-gen 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/sbwtw/regex-gen [INFO] finished tweaking git repo https://github.com/sbwtw/regex-gen [INFO] tweaked toml for git repo https://github.com/sbwtw/regex-gen written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/sbwtw/regex-gen 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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] e59ae87b239aa5f7f82df3030e2aec6022bedf205f3aa93a15ccae6d40636805 [INFO] running `Command { std: "docker" "start" "-a" "e59ae87b239aa5f7f82df3030e2aec6022bedf205f3aa93a15ccae6d40636805", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e59ae87b239aa5f7f82df3030e2aec6022bedf205f3aa93a15ccae6d40636805", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e59ae87b239aa5f7f82df3030e2aec6022bedf205f3aa93a15ccae6d40636805", kill_on_drop: false }` [INFO] [stdout] e59ae87b239aa5f7f82df3030e2aec6022bedf205f3aa93a15ccae6d40636805 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 46cf80424e798c95cef47cb3ab182c5809687c2d279c4edab51a6c6502e4530c [INFO] running `Command { std: "docker" "start" "-a" "46cf80424e798c95cef47cb3ab182c5809687c2d279c4edab51a6c6502e4530c", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Checking either v1.5.0 [INFO] [stderr] Checking itertools v0.7.8 [INFO] [stderr] Checking regex-gen v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/transtable.rs:122:17 [INFO] [stdout] | [INFO] [stdout] 122 | for (_, mut edges) in self.trans.iter_mut() { [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: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/node.rs:144:29 [INFO] [stdout] | [INFO] [stdout] 144 | for item in iter.next() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to iterate over `iter` remove the call to `next` [INFO] [stdout] | [INFO] [stdout] 144 | for item in iter.by_ref() { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 144 | if let Some(item) = iter.next() { [INFO] [stdout] | ~~~~~~~~~~~~ ~~~ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/transtable.rs:122:17 [INFO] [stdout] | [INFO] [stdout] 122 | for (_, mut edges) in self.trans.iter_mut() { [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: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/node.rs:144:29 [INFO] [stdout] | [INFO] [stdout] 144 | for item in iter.next() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to iterate over `iter` remove the call to `next` [INFO] [stdout] | [INFO] [stdout] 144 | for item in iter.by_ref() { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 144 | if let Some(item) = iter.next() { [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 0.64s [INFO] running `Command { std: "docker" "inspect" "46cf80424e798c95cef47cb3ab182c5809687c2d279c4edab51a6c6502e4530c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "46cf80424e798c95cef47cb3ab182c5809687c2d279c4edab51a6c6502e4530c", kill_on_drop: false }` [INFO] [stdout] 46cf80424e798c95cef47cb3ab182c5809687c2d279c4edab51a6c6502e4530c [INFO] checking sbwtw/regex-gen 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%2Fsbwtw%2Fregex-gen" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sbwtw/regex-gen 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/sbwtw/regex-gen [INFO] finished tweaking git repo https://github.com/sbwtw/regex-gen [INFO] tweaked toml for git repo https://github.com/sbwtw/regex-gen written to /workspace/builds/worker-1-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/sbwtw/regex-gen 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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] a27dff94a0cf26e6cb70a216e60d36e6a040707687a90498a0ca1fde1aef30ef [INFO] running `Command { std: "docker" "start" "-a" "a27dff94a0cf26e6cb70a216e60d36e6a040707687a90498a0ca1fde1aef30ef", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a27dff94a0cf26e6cb70a216e60d36e6a040707687a90498a0ca1fde1aef30ef", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a27dff94a0cf26e6cb70a216e60d36e6a040707687a90498a0ca1fde1aef30ef", kill_on_drop: false }` [INFO] [stdout] a27dff94a0cf26e6cb70a216e60d36e6a040707687a90498a0ca1fde1aef30ef [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 2af50a5f095d907fdf8838c4d1edf410b9a5b7c334ed731b9e1e7f60d17e02cc [INFO] running `Command { std: "docker" "start" "-a" "2af50a5f095d907fdf8838c4d1edf410b9a5b7c334ed731b9e1e7f60d17e02cc", kill_on_drop: false }` [INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021 [INFO] [stderr] Checking either v1.5.0 [INFO] [stderr] Checking itertools v0.7.8 [INFO] [stderr] Checking regex-gen v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/transtable.rs:122:17 [INFO] [stdout] | [INFO] [stdout] 122 | for (_, mut edges) in self.trans.iter_mut() { [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: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/node.rs:144:29 [INFO] [stdout] | [INFO] [stdout] 144 | for item in iter.next() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to iterate over `iter` remove the call to `next` [INFO] [stdout] | [INFO] [stdout] 144 | for item in iter.by_ref() { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 144 | if let Some(item) = iter.next() { [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/transtable.rs:79:38 [INFO] [stdout] | [INFO] [stdout] 79 | .map(|x| (x.clone(), self.epsilon_move(x))) [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] [stderr] error: could not compile `regex-gen` (lib) due to 2 previous errors; 2 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/transtable.rs:122:17 [INFO] [stdout] | [INFO] [stdout] 122 | for (_, mut edges) in self.trans.iter_mut() { [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: for loop over an `Option`. This is more readably written as an `if let` statement [INFO] [stdout] --> src/node.rs:144:29 [INFO] [stdout] | [INFO] [stdout] 144 | for item in iter.next() { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(for_loops_over_fallibles)]` on by default [INFO] [stdout] help: to iterate over `iter` remove the call to `next` [INFO] [stdout] | [INFO] [stdout] 144 | for item in iter.by_ref() { [INFO] [stdout] | ~~~~~~~~~ [INFO] [stdout] help: consider using `if let` to clear intent [INFO] [stdout] | [INFO] [stdout] 144 | if let Some(item) = iter.next() { [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/transtable.rs:79:38 [INFO] [stdout] | [INFO] [stdout] 79 | .map(|x| (x.clone(), self.epsilon_move(x))) [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] [stderr] error: could not compile `regex-gen` (lib test) due to 2 previous errors; 2 warnings emitted [INFO] running `Command { std: "docker" "inspect" "2af50a5f095d907fdf8838c4d1edf410b9a5b7c334ed731b9e1e7f60d17e02cc", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2af50a5f095d907fdf8838c4d1edf410b9a5b7c334ed731b9e1e7f60d17e02cc", kill_on_drop: false }` [INFO] [stdout] 2af50a5f095d907fdf8838c4d1edf410b9a5b7c334ed731b9e1e7f60d17e02cc