[INFO] fetching crate rust-reduce 0.1.0... [INFO] testing rust-reduce-0.1.0 against 1.91.0 for beta-1.92-2 [INFO] extracting crate rust-reduce 0.1.0 into /workspace/builds/worker-3-tc1/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-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate rust-reduce 0.1.0 on toolchain 1.91.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "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" "+1.91.0" "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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded syn-inline-mod v0.2.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6f1eae7e5c4fcf8e372dbd04da76ab54fe84679c52ca497535bc2fd78e04b5f6 [INFO] running `Command { std: "docker" "start" "-a" "6f1eae7e5c4fcf8e372dbd04da76ab54fe84679c52ca497535bc2fd78e04b5f6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6f1eae7e5c4fcf8e372dbd04da76ab54fe84679c52ca497535bc2fd78e04b5f6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6f1eae7e5c4fcf8e372dbd04da76ab54fe84679c52ca497535bc2fd78e04b5f6", kill_on_drop: false }` [INFO] [stdout] 6f1eae7e5c4fcf8e372dbd04da76ab54fe84679c52ca497535bc2fd78e04b5f6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=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" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] af6191a31052286fa72d9fb276bf6dac00b7bddbd56131249ae4e160580b8a80 [INFO] running `Command { std: "docker" "start" "-a" "af6191a31052286fa72d9fb276bf6dac00b7bddbd56131249ae4e160580b8a80", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v0.4.30 [INFO] [stderr] Compiling libc v0.2.177 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling syn v0.15.44 [INFO] [stderr] Compiling rustix v1.1.2 [INFO] [stderr] Compiling getrandom v0.3.4 [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 11.99s [INFO] running `Command { std: "docker" "inspect" "af6191a31052286fa72d9fb276bf6dac00b7bddbd56131249ae4e160580b8a80", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "af6191a31052286fa72d9fb276bf6dac00b7bddbd56131249ae4e160580b8a80", kill_on_drop: false }` [INFO] [stdout] af6191a31052286fa72d9fb276bf6dac00b7bddbd56131249ae4e160580b8a80 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=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" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 2e3ae71de4aee577c374eae0ee0371f77436e1d74896ddd940564e20c226e17e [INFO] running `Command { std: "docker" "start" "-a" "2e3ae71de4aee577c374eae0ee0371f77436e1d74896ddd940564e20c226e17e", kill_on_drop: false }` [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] [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: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 0.78s [INFO] running `Command { std: "docker" "inspect" "2e3ae71de4aee577c374eae0ee0371f77436e1d74896ddd940564e20c226e17e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2e3ae71de4aee577c374eae0ee0371f77436e1d74896ddd940564e20c226e17e", kill_on_drop: false }` [INFO] [stdout] 2e3ae71de4aee577c374eae0ee0371f77436e1d74896ddd940564e20c226e17e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=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" "+1.91.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] e856687e7fe5adbf18732b26119cfa65c651628a04be30d77c36866fc50e1adf [INFO] running `Command { std: "docker" "start" "-a" "e856687e7fe5adbf18732b26119cfa65c651628a04be30d77c36866fc50e1adf", 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"` 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 0.08s [INFO] [stderr] Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rust_reduce-767a81b0cd071541) [INFO] [stdout] [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] [stderr] Running tests/suite/main.rs (/opt/rustwide/target/debug/deps/suite-7c1fca6ba09794dc) [INFO] [stdout] [INFO] [stdout] running 1 test [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' (25) 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: 0x60e7611473b2 - std::backtrace_rs::backtrace::libunwind::trace::h62f3c6bea0fedab3 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x60e7611473b2 - std::backtrace_rs::backtrace::trace_unsynchronized::hc41aaca6c0af0bde [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x60e7611473b2 - std::sys::backtrace::_print_fmt::h33ac2b97007106cc [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:66:9 [INFO] [stdout] 3: 0x60e7611473b2 - ::fmt::h4e0a3aeea0f9c085 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:39:26 [INFO] [stdout] 4: 0x60e7611575ff - core::fmt::rt::Argument::fmt::h1edd6a3e00b22f10 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/fmt/rt.rs:173:76 [INFO] [stdout] 5: 0x60e7611575ff - core::fmt::write::hecf68a131630c74d [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/fmt/mod.rs:1468:25 [INFO] [stdout] 6: 0x60e761114111 - std::io::default_write_fmt::ha6b238eff7f0ef8a [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x60e761114111 - std::io::Write::write_fmt::h9846fe3d2a36c1ea [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/io/mod.rs:1954:13 [INFO] [stdout] 8: 0x60e7611202c2 - std::sys::backtrace::BacktraceLock::print::h75160192768e5621 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:42:9 [INFO] [stdout] 9: 0x60e7611251ef - std::panicking::default_hook::{{closure}}::h14d82797cfb1ddcb [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:301:27 [INFO] [stdout] 10: 0x60e761125081 - std::panicking::default_hook::h63f9bf8161c5d325 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:325:9 [INFO] [stdout] 11: 0x60e7610e50fe - as core::ops::function::Fn>::call::hb8126f8384f98101 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/alloc/src/boxed.rs:1999:9 [INFO] [stdout] 12: 0x60e7610e50fe - test::test_main_with_exit_callback::{{closure}}::hae96ae0cd2f2ce70 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x60e7611258af - as core::ops::function::Fn>::call::ha703f6686c81d0c6 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/alloc/src/boxed.rs:1999:9 [INFO] [stdout] 14: 0x60e7611258af - std::panicking::panic_with_hook::h3173740e06bd0752 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:842:13 [INFO] [stdout] 15: 0x60e76112570a - std::panicking::panic_handler::{{closure}}::hbac492c61eb56a87 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:707:13 [INFO] [stdout] 16: 0x60e761120409 - std::sys::backtrace::__rust_end_short_backtrace::haa3eac3df9535320 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:174:18 [INFO] [stdout] 17: 0x60e761107fbd - __rustc[de0091b922c53d7e]::rust_begin_unwind [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:698:5 [INFO] [stdout] 18: 0x60e76115ee80 - core::panicking::panic_fmt::h5138da2ef87be35b [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/panicking.rs:75:14 [INFO] [stdout] 19: 0x60e76115ed23 - core::panicking::assert_failed_inner::h1c85740028aaa416 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/panicking.rs:439:17 [INFO] [stdout] 20: 0x60e7610c0527 - core::panicking::assert_failed::h57f1b27d7a7af128 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/panicking.rs:394:5 [INFO] [stdout] 21: 0x60e7610c2f82 - suite::run_test::hd124b89d4456bb74 [INFO] [stdout] at /opt/rustwide/workdir/tests/suite/main.rs:36:5 [INFO] [stdout] 22: 0x60e7610c2402 - suite::futures_core::heddd38b15451b64c [INFO] [stdout] at /opt/rustwide/workdir/tests/suite/main.rs:44:17 [INFO] [stdout] 23: 0x60e7610c2427 - suite::futures_core::{{closure}}::h85bb7ff244f5bc60 [INFO] [stdout] at /opt/rustwide/workdir/tests/suite/main.rs:43:20 [INFO] [stdout] 24: 0x60e7610beab6 - core::ops::function::FnOnce::call_once::h996428c10bb68a41 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x60e7610e4edb - core::ops::function::FnOnce::call_once::h8f50ae93d93b62b4 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 26: 0x60e7610e4edb - test::__rust_begin_short_backtrace::h447963718d05a644 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/test/src/lib.rs:663:18 [INFO] [stdout] 27: 0x60e7610fab15 - test::run_test_in_process::{{closure}}::hf890ba4755ca86c0 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/test/src/lib.rs:686:74 [INFO] [stdout] 28: 0x60e7610fab15 - as core::ops::function::FnOnce<()>>::call_once::h31e4b2860e583faa [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 29: 0x60e7610fab15 - std::panicking::catch_unwind::do_call::hec7cdbbe797e2cab [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:590:40 [INFO] [stdout] 30: 0x60e7610fab15 - std::panicking::catch_unwind::h24d3b93458b5ba67 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:553:19 [INFO] [stdout] 31: 0x60e7610fab15 - std::panic::catch_unwind::h46eeec7cf9c9336c [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panic.rs:359:14 [INFO] [stdout] 32: 0x60e7610fab15 - test::run_test_in_process::h290de6e559006104 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/test/src/lib.rs:686:27 [INFO] [stdout] 33: 0x60e7610fab15 - test::run_test::{{closure}}::h26eeb2c5f7e9a995 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/test/src/lib.rs:607:43 [INFO] [stdout] 34: 0x60e7610d1314 - test::run_test::{{closure}}::h85af00882daabeaa [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/test/src/lib.rs:637:41 [INFO] [stdout] 35: 0x60e7610d1314 - std::sys::backtrace::__rust_begin_short_backtrace::h9d9305dda51fa5f2 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/backtrace.rs:158:18 [INFO] [stdout] 36: 0x60e7610d4cba - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hc6aada8b43f0527b [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/thread/mod.rs:559:17 [INFO] [stdout] 37: 0x60e7610d4cba - as core::ops::function::FnOnce<()>>::call_once::ha89fe5505c1206f5 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/panic/unwind_safe.rs:274:9 [INFO] [stdout] 38: 0x60e7610d4cba - std::panicking::catch_unwind::do_call::he3e0bef721d99583 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:590:40 [INFO] [stdout] 39: 0x60e7610d4cba - std::panicking::catch_unwind::ha8241964d3d773cd [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panicking.rs:553:19 [INFO] [stdout] 40: 0x60e7610d4cba - std::panic::catch_unwind::ha8554bc7696cae72 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/panic.rs:359:14 [INFO] [stdout] 41: 0x60e7610d4cba - std::thread::Builder::spawn_unchecked_::{{closure}}::he06f1f62b4c90f8d [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/thread/mod.rs:557:30 [INFO] [stdout] 42: 0x60e7610d4cba - core::ops::function::FnOnce::call_once{{vtable.shim}}::ha7fd20ecae19b9b9 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 43: 0x60e76111b50f - as core::ops::function::FnOnce>::call_once::h43642ed9c40e0ab2 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/alloc/src/boxed.rs:1985:9 [INFO] [stdout] 44: 0x60e76111b50f - std::sys::thread::unix::Thread::new::thread_start::h38da0f633f090ce2 [INFO] [stdout] at /rustc/f8297e351a40c1439a467bbbb6879088047f50b3/library/std/src/sys/thread/unix.rs:126:17 [INFO] [stdout] 45: 0x714cc85d4aa4 - [INFO] [stdout] 46: 0x714cc8661a64 - 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 13.45s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--test suite` [INFO] running `Command { std: "docker" "inspect" "e856687e7fe5adbf18732b26119cfa65c651628a04be30d77c36866fc50e1adf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e856687e7fe5adbf18732b26119cfa65c651628a04be30d77c36866fc50e1adf", kill_on_drop: false }` [INFO] [stdout] e856687e7fe5adbf18732b26119cfa65c651628a04be30d77c36866fc50e1adf