[INFO] fetching crate rust-reduce 0.1.0... [INFO] testing rust-reduce-0.1.0 against beta-2025-10-28 for beta-1.92-2 [INFO] extracting crate rust-reduce 0.1.0 into /workspace/builds/worker-3-tc2/source [INFO] started tweaking crates.io crate rust-reduce 0.1.0 [INFO] finished tweaking crates.io crate rust-reduce 0.1.0 [INFO] tweaked toml for crates.io crate rust-reduce 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate rust-reduce 0.1.0 on toolchain beta-2025-10-28 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Locking 24 packages to latest compatible versions [INFO] [stderr] Adding clap v2.34.0 (available: v4.5.51) [INFO] [stderr] Adding quote v0.6.13 (available: v1.0.41) [INFO] [stderr] Adding syn v0.15.44 (available: v2.0.108) [INFO] [stderr] Adding syn-inline-mod v0.2.0 (available: v0.6.0) [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] a2fc5574e3489348b39867af02737e8c5d8076df3a3aba110a8b509ee96aadd1 [INFO] running `Command { std: "docker" "start" "-a" "a2fc5574e3489348b39867af02737e8c5d8076df3a3aba110a8b509ee96aadd1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "a2fc5574e3489348b39867af02737e8c5d8076df3a3aba110a8b509ee96aadd1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a2fc5574e3489348b39867af02737e8c5d8076df3a3aba110a8b509ee96aadd1", kill_on_drop: false }` [INFO] [stdout] a2fc5574e3489348b39867af02737e8c5d8076df3a3aba110a8b509ee96aadd1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d1d98ae6d045a402abe69d1feb56f9f1ce830d78c158fa802753d314c680cff5 [INFO] running `Command { std: "docker" "start" "-a" "d1d98ae6d045a402abe69d1feb56f9f1ce830d78c158fa802753d314c680cff5", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling libc v0.2.177 [INFO] [stderr] Compiling getrandom v0.3.4 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling rustix v1.1.2 [INFO] [stderr] Compiling linux-raw-sys v0.11.0 [INFO] [stderr] Compiling textwrap v0.11.0 [INFO] [stderr] Compiling clap v2.34.0 [INFO] [stderr] Compiling quote v0.6.13 [INFO] [stderr] Compiling tempfile v3.23.0 [INFO] [stderr] Compiling syn-inline-mod v0.2.0 [INFO] [stderr] Compiling rust-reduce v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/output.rs:25:43 [INFO] [stdout] | [INFO] [stdout] 25 | constructor: fn(PathBuf, bool) -> Box, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 25 | constructor: fn(PathBuf, bool) -> Box, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/output.rs:26:23 [INFO] [stdout] | [INFO] [stdout] 26 | inner: Option>, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 26 | inner: Option>, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/output.rs:59:53 [INFO] [stdout] | [INFO] [stdout] 59 | fn new(file: PathBuf, need_backup: bool) -> Box { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 59 | fn new(file: PathBuf, need_backup: bool) -> Box { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/output.rs:49:53 [INFO] [stdout] | [INFO] [stdout] 49 | fn new(path: PathBuf, need_backup: bool) -> Box where Self: Sized; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 49 | fn new(path: PathBuf, need_backup: bool) -> Box where Self: Sized; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/output.rs:94:53 [INFO] [stdout] | [INFO] [stdout] 94 | fn new(file: PathBuf, need_backup: bool) -> Box { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 94 | fn new(file: PathBuf, need_backup: bool) -> Box { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/output.rs:160:56 [INFO] [stdout] | [INFO] [stdout] 160 | Box::new(std::io::stdout()) as Box [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 160 | Box::new(std::io::stdout()) as Box [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/transforms/clear_blocks.rs:65:5 [INFO] [stdout] | [INFO] [stdout] 65 | mem::replace(i, backup); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 65 | let _ = mem::replace(i, backup); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.12s [INFO] running `Command { std: "docker" "inspect" "d1d98ae6d045a402abe69d1feb56f9f1ce830d78c158fa802753d314c680cff5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d1d98ae6d045a402abe69d1feb56f9f1ce830d78c158fa802753d314c680cff5", kill_on_drop: false }` [INFO] [stdout] d1d98ae6d045a402abe69d1feb56f9f1ce830d78c158fa802753d314c680cff5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] ade2c0038a942c61c65c90af2927502cf2d9a0c26a25e2bf0e9eaec7fb0e4064 [INFO] running `Command { std: "docker" "start" "-a" "ade2c0038a942c61c65c90af2927502cf2d9a0c26a25e2bf0e9eaec7fb0e4064", kill_on_drop: false }` [INFO] [stderr] Compiling rust-reduce v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/output.rs:25:43 [INFO] [stdout] | [INFO] [stdout] 25 | constructor: fn(PathBuf, bool) -> Box, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 25 | constructor: fn(PathBuf, bool) -> Box, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/output.rs:26:23 [INFO] [stdout] | [INFO] [stdout] 26 | inner: Option>, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 26 | inner: Option>, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/output.rs:59:53 [INFO] [stdout] | [INFO] [stdout] 59 | fn new(file: PathBuf, need_backup: bool) -> Box { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 59 | fn new(file: PathBuf, need_backup: bool) -> Box { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/output.rs:49:53 [INFO] [stdout] | [INFO] [stdout] 49 | fn new(path: PathBuf, need_backup: bool) -> Box where Self: Sized; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 49 | fn new(path: PathBuf, need_backup: bool) -> Box where Self: Sized; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/output.rs:94:53 [INFO] [stdout] | [INFO] [stdout] 94 | fn new(file: PathBuf, need_backup: bool) -> Box { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 94 | fn new(file: PathBuf, need_backup: bool) -> Box { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/output.rs:160:56 [INFO] [stdout] | [INFO] [stdout] 160 | Box::new(std::io::stdout()) as Box [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 160 | Box::new(std::io::stdout()) as Box [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/transforms/clear_blocks.rs:65:5 [INFO] [stdout] | [INFO] [stdout] 65 | mem::replace(i, backup); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 65 | let _ = mem::replace(i, backup); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/output.rs:25:43 [INFO] [stdout] | [INFO] [stdout] 25 | constructor: fn(PathBuf, bool) -> Box, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 25 | constructor: fn(PathBuf, bool) -> Box, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/output.rs:26:23 [INFO] [stdout] | [INFO] [stdout] 26 | inner: Option>, [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 26 | inner: Option>, [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/output.rs:59:53 [INFO] [stdout] | [INFO] [stdout] 59 | fn new(file: PathBuf, need_backup: bool) -> Box { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 59 | fn new(file: PathBuf, need_backup: bool) -> Box { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/output.rs:49:53 [INFO] [stdout] | [INFO] [stdout] 49 | fn new(path: PathBuf, need_backup: bool) -> Box where Self: Sized; [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 49 | fn new(path: PathBuf, need_backup: bool) -> Box where Self: Sized; [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/output.rs:94:53 [INFO] [stdout] | [INFO] [stdout] 94 | fn new(file: PathBuf, need_backup: bool) -> Box { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 94 | fn new(file: PathBuf, need_backup: bool) -> Box { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/output.rs:160:56 [INFO] [stdout] | [INFO] [stdout] 160 | Box::new(std::io::stdout()) as Box [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stdout] | [INFO] [stdout] 160 | Box::new(std::io::stdout()) as Box [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused return value of `std::mem::replace` that must be used [INFO] [stdout] --> src/transforms/clear_blocks.rs:65:5 [INFO] [stdout] | [INFO] [stdout] 65 | mem::replace(i, backup); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stdout] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] help: use `let _ = ...` to ignore the resulting value [INFO] [stdout] | [INFO] [stdout] 65 | let _ = mem::replace(i, backup); [INFO] [stdout] | +++++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.57s [INFO] running `Command { std: "docker" "inspect" "ade2c0038a942c61c65c90af2927502cf2d9a0c26a25e2bf0e9eaec7fb0e4064", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ade2c0038a942c61c65c90af2927502cf2d9a0c26a25e2bf0e9eaec7fb0e4064", kill_on_drop: false }` [INFO] [stdout] ade2c0038a942c61c65c90af2927502cf2d9a0c26a25e2bf0e9eaec7fb0e4064 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 40bbb1702790615c39fde5e9522b91e67328f679d33fa89fc9fa19a38c2bc95c [INFO] running `Command { std: "docker" "start" "-a" "40bbb1702790615c39fde5e9522b91e67328f679d33fa89fc9fa19a38c2bc95c", kill_on_drop: false }` [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/output.rs:25:43 [INFO] [stderr] | [INFO] [stderr] 25 | constructor: fn(PathBuf, bool) -> Box, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stderr] | [INFO] [stderr] 25 | constructor: fn(PathBuf, bool) -> Box, [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/output.rs:26:23 [INFO] [stderr] | [INFO] [stderr] 26 | inner: Option>, [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stderr] | [INFO] [stderr] 26 | inner: Option>, [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/output.rs:59:53 [INFO] [stderr] | [INFO] [stderr] 59 | fn new(file: PathBuf, need_backup: bool) -> Box { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stderr] | [INFO] [stderr] 59 | fn new(file: PathBuf, need_backup: bool) -> Box { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/output.rs:49:53 [INFO] [stderr] | [INFO] [stderr] 49 | fn new(path: PathBuf, need_backup: bool) -> Box where Self: Sized; [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stderr] | [INFO] [stderr] 49 | fn new(path: PathBuf, need_backup: bool) -> Box where Self: Sized; [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/output.rs:94:53 [INFO] [stderr] | [INFO] [stderr] 94 | fn new(file: PathBuf, need_backup: bool) -> Box { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stderr] | [INFO] [stderr] 94 | fn new(file: PathBuf, need_backup: bool) -> Box { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/output.rs:160:56 [INFO] [stderr] | [INFO] [stderr] 160 | Box::new(std::io::stdout()) as Box [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn` [INFO] [stderr] | [INFO] [stderr] 160 | Box::new(std::io::stdout()) as Box [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used [INFO] [stderr] --> src/transforms/clear_blocks.rs:65:5 [INFO] [stderr] | [INFO] [stderr] 65 | mem::replace(i, backup); [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: if you don't need the old value, you can just assign the new value directly [INFO] [stderr] = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default [INFO] [stderr] help: use `let _ = ...` to ignore the resulting value [INFO] [stderr] | [INFO] [stderr] 65 | let _ = mem::replace(i, backup); [INFO] [stderr] | +++++++ [INFO] [stderr] [INFO] [stderr] warning: `rust-reduce` (bin "rust-reduce") generated 7 warnings (run `cargo fix --bin "rust-reduce" -p rust-reduce` to apply 6 suggestions) [INFO] [stderr] warning: `rust-reduce` (bin "rust-reduce" test) generated 7 warnings (7 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_reduce-414ee19d81f20760) [INFO] [stdout] [INFO] [stderr] Running tests/suite/main.rs (/opt/rustwide/target/debug/deps/suite-4261f65e94c4a6c9) [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] running 1 test [INFO] [stderr] error: test failed, to rerun pass `--test suite` [INFO] [stdout] test futures_core ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- futures_core stdout ---- [INFO] [stdout] [INFO] [stdout] thread 'futures_core' (26) panicked at tests/suite/main.rs:36:5: [INFO] [stdout] assertion `left == right` failed [INFO] [stdout] left: "" [INFO] [stdout] right: "#![cfg_attr(feature = \"cfg-target-has-atomic\", feature(cfg_target_has_atomic))]\n#![cfg_attr(not(feature = \"std\"), no_std)]\n#![warn(\n missing_docs,\n missing_debug_implementations,\n rust_2018_idioms,\n unreachable_pub\n)]\n#![warn(clippy::all)]\npub mod future {\n mod future_obj {\n unsafe impl<'a, T, F> UnsafeFutureObj<'a, T> for &'a mut F\n where\n F: Future + Unpin + 'a,\n {\n fn into_raw(self) -> *mut (Future + 'a) {\n unimplemented!()\n }\n }\n }\n}\n" [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x5b59b84e9712 - std::backtrace_rs::backtrace::libunwind::trace::h16acf28769fcd909 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x5b59b84e9712 - std::backtrace_rs::backtrace::trace_unsynchronized::hb5541aa5d4f92513 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x5b59b84e9712 - std::sys::backtrace::_print_fmt::h8ac8268cb667a306 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x5b59b84e9712 - ::fmt::h47627beda0767f4c [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x5b59b84f979f - core::fmt::rt::Argument::fmt::h686a01ad57c1c92a [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x5b59b84f979f - core::fmt::write::h8a63064c67176fd8 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/fmt/mod.rs:1469:25 [INFO] [stdout] 6: 0x5b59b84b6933 - std::io::default_write_fmt::hd4797e693c0ec256 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x5b59b84b6933 - std::io::Write::write_fmt::h791e240ad2720c99 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x5b59b84c29a2 - std::sys::backtrace::BacktraceLock::print::h4634d27c0afbaebb [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x5b59b84c780f - std::panicking::default_hook::{{closure}}::h23e0299d4738b766 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x5b59b84c76a1 - std::panicking::default_hook::hfeec6294e8751b62 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:325:9 [INFO] [stdout] 11: 0x5b59b848926e - as core::ops::function::Fn>::call::h3f5a16438cee2b4e [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:2019:9 [INFO] [stdout] 12: 0x5b59b848926e - test::test_main_with_exit_callback::{{closure}}::h9214498cef9aafc5 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x5b59b84c7e1f - as core::ops::function::Fn>::call::hdb18da3e68df7464 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:2019:9 [INFO] [stdout] 14: 0x5b59b84c7e1f - std::panicking::panic_with_hook::hd57cd463d793ed79 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:842:13 [INFO] [stdout] 15: 0x5b59b84c7c7a - std::panicking::panic_handler::{{closure}}::hddd6216c3fddee3b [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:707:13 [INFO] [stdout] 16: 0x5b59b84c2ad9 - std::sys::backtrace::__rust_end_short_backtrace::h5e7a56f283378525 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 17: 0x5b59b84aa97d - __rustc[256c90bb7e548b45]::rust_begin_unwind [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:698:5 [INFO] [stdout] 18: 0x5b59b8500fe0 - core::panicking::panic_fmt::hf19c198748ef6a95 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/panicking.rs:80:14 [INFO] [stdout] 19: 0x5b59b8500e83 - core::panicking::assert_failed_inner::h709867d03648810d [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/panicking.rs:444:17 [INFO] [stdout] 20: 0x5b59b8464e47 - core::panicking::assert_failed::h3fc34e9ae2080bf8 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/panicking.rs:399:5 [INFO] [stdout] 21: 0x5b59b8467642 - suite::run_test::h668f90a3571818a3 [INFO] [stdout] at /opt/rustwide/workdir/tests/suite/main.rs:36:5 [INFO] [stdout] 22: 0x5b59b8466ab2 - suite::futures_core::hd7fa9c2356c4d5da [INFO] [stdout] at /opt/rustwide/workdir/tests/suite/main.rs:44:17 [INFO] [stdout] 23: 0x5b59b8466ad7 - suite::futures_core::{{closure}}::h9bd55463d624844b [INFO] [stdout] at /opt/rustwide/workdir/tests/suite/main.rs:43:20 [INFO] [stdout] 24: 0x5b59b8463406 - core::ops::function::FnOnce::call_once::h93da067b8131c69c [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x5b59b84890bb - core::ops::function::FnOnce::call_once::h43f43c5185cf39c2 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 26: 0x5b59b84890bb - test::__rust_begin_short_backtrace::hc4fa634eb2764bdc [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/test/src/lib.rs:663:18 [INFO] [stdout] 27: 0x5b59b849d6d8 - test::run_test_in_process::{{closure}}::h9f4b799a5211b72a [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/test/src/lib.rs:686:74 [INFO] [stdout] 28: 0x5b59b849d6d8 - as core::ops::function::FnOnce<()>>::call_once::ha572bf7dc5230a8f [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 29: 0x5b59b849d6d8 - std::panicking::catch_unwind::do_call::hfd6ff51f25dd177b [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40 [INFO] [stdout] 30: 0x5b59b849d6d8 - std::panicking::catch_unwind::h8609b446221def5f [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19 [INFO] [stdout] 31: 0x5b59b849d6d8 - std::panic::catch_unwind::h362f73cc48531e26 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panic.rs:359:14 [INFO] [stdout] 32: 0x5b59b849d6d8 - test::run_test_in_process::hf52fd21d696aae67 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/test/src/lib.rs:686:27 [INFO] [stdout] 33: 0x5b59b849d6d8 - test::run_test::{{closure}}::h7e780b8354e6d007 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/test/src/lib.rs:607:43 [INFO] [stdout] 34: 0x5b59b84764a4 - test::run_test::{{closure}}::hdc2695f2276aad3e [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/test/src/lib.rs:637:41 [INFO] [stdout] 35: 0x5b59b84764a4 - std::sys::backtrace::__rust_begin_short_backtrace::h2555b2113ed90fc9 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:158:18 [INFO] [stdout] 36: 0x5b59b8479dda - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h99800d480987dfb6 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/thread/mod.rs:562:17 [INFO] [stdout] 37: 0x5b59b8479dda - as core::ops::function::FnOnce<()>>::call_once::hbbb69b5294b2221b [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 38: 0x5b59b8479dda - std::panicking::catch_unwind::do_call::h495689350c27df20 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40 [INFO] [stdout] 39: 0x5b59b8479dda - std::panicking::catch_unwind::hf22437c51d1b3740 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19 [INFO] [stdout] 40: 0x5b59b8479dda - std::panic::catch_unwind::habda1a57de8231f8 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panic.rs:359:14 [INFO] [stdout] 41: 0x5b59b8479dda - std::thread::Builder::spawn_unchecked_::{{closure}}::h5833d8dda8c7e80b [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/thread/mod.rs:560:30 [INFO] [stdout] 42: 0x5b59b8479dda - core::ops::function::FnOnce::call_once{{vtable.shim}}::ha2910283a5058402 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 43: 0x5b59b84bdcef - as core::ops::function::FnOnce>::call_once::he4d85cb537521972 [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:2005:9 [INFO] [stdout] 44: 0x5b59b84bdcef - std::sys::thread::unix::Thread::new::thread_start::hbaf586a9e50a98cd [INFO] [stdout] at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/thread/unix.rs:126:17 [INFO] [stdout] 45: 0x70e5158c2aa4 - [INFO] [stdout] 46: 0x70e51594fa64 - clone [INFO] [stdout] 47: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] futures_core [INFO] [stdout] [INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 11.82s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "40bbb1702790615c39fde5e9522b91e67328f679d33fa89fc9fa19a38c2bc95c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "40bbb1702790615c39fde5e9522b91e67328f679d33fa89fc9fa19a38c2bc95c", kill_on_drop: false }` [INFO] [stdout] 40bbb1702790615c39fde5e9522b91e67328f679d33fa89fc9fa19a38c2bc95c