[INFO] cloning repository https://github.com/melbourne2991/rusty-lisp [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/melbourne2991/rusty-lisp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmelbourne2991%2Frusty-lisp", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmelbourne2991%2Frusty-lisp'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b7a103349103746bbe05cf57cff9ca13ba32801c [INFO] testing melbourne2991/rusty-lisp against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmelbourne2991%2Frusty-lisp" "/workspace/builds/worker-106/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-106/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/melbourne2991/rusty-lisp on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/melbourne2991/rusty-lisp [INFO] finished tweaking git repo https://github.com/melbourne2991/rusty-lisp [INFO] tweaked toml for git repo https://github.com/melbourne2991/rusty-lisp written to /workspace/builds/worker-106/source/Cargo.toml [INFO] crate git repo https://github.com/melbourne2991/rusty-lisp already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 218db61e70ffa595a37dadf7f2d8427fc6b19878b056a4568f191edb1bde1c24 [INFO] running `Command { std: "docker" "start" "-a" "218db61e70ffa595a37dadf7f2d8427fc6b19878b056a4568f191edb1bde1c24", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "218db61e70ffa595a37dadf7f2d8427fc6b19878b056a4568f191edb1bde1c24", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "218db61e70ffa595a37dadf7f2d8427fc6b19878b056a4568f191edb1bde1c24", kill_on_drop: false }` [INFO] [stdout] 218db61e70ffa595a37dadf7f2d8427fc6b19878b056a4568f191edb1bde1c24 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b72509d440153e85c21f7bcee4d696014bd1461e2d7278d9dcafa17f2dfd0b00 [INFO] running `Command { std: "docker" "start" "-a" "b72509d440153e85c21f7bcee4d696014bd1461e2d7278d9dcafa17f2dfd0b00", kill_on_drop: false }` [INFO] [stderr] Compiling rusticle v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/compiler/errors.rs:27:30 [INFO] [stdout] | [INFO] [stdout] 27 | fn cause(&self) -> Option<&error::Error> { [INFO] [stdout] | ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ast` [INFO] [stdout] --> src/main.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let ast = compiler::parse(filenames); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_ast` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `as_non_terminal` [INFO] [stdout] --> src/compiler/parse_tree.rs:41:10 [INFO] [stdout] | [INFO] [stdout] 41 | pub fn as_non_terminal(&self) -> PTParentNode<'a> { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `get_terminal` [INFO] [stdout] --> src/compiler/parse_tree.rs:115:10 [INFO] [stdout] | [INFO] [stdout] 115 | pub fn get_terminal(&self, node_ref: usize) -> &Token { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Declaration` [INFO] [stdout] --> src/compiler/source_ast.rs:11:3 [INFO] [stdout] | [INFO] [stdout] 11 | Declaration, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Expression` [INFO] [stdout] --> src/compiler/source_ast.rs:23:3 [INFO] [stdout] | [INFO] [stdout] 23 | Expression(ExpressionNode), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Number` [INFO] [stdout] --> src/compiler/lexer.rs:17:3 [INFO] [stdout] | [INFO] [stdout] 17 | Number(String), [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `start_line` [INFO] [stdout] --> src/compiler/lexer.rs:22:3 [INFO] [stdout] | [INFO] [stdout] 22 | start_line: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `start_col` [INFO] [stdout] --> src/compiler/lexer.rs:23:3 [INFO] [stdout] | [INFO] [stdout] 23 | start_col: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `end_line` [INFO] [stdout] --> src/compiler/lexer.rs:24:3 [INFO] [stdout] | [INFO] [stdout] 24 | end_line: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `end_col` [INFO] [stdout] --> src/compiler/lexer.rs:25:3 [INFO] [stdout] | [INFO] [stdout] 25 | end_col: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.75s [INFO] running `Command { std: "docker" "inspect" "b72509d440153e85c21f7bcee4d696014bd1461e2d7278d9dcafa17f2dfd0b00", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b72509d440153e85c21f7bcee4d696014bd1461e2d7278d9dcafa17f2dfd0b00", kill_on_drop: false }` [INFO] [stdout] b72509d440153e85c21f7bcee4d696014bd1461e2d7278d9dcafa17f2dfd0b00 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 974e75695c5f08fb9b534beec12a43b02662b0e2c637a0946851f0058fd3e304 [INFO] running `Command { std: "docker" "start" "-a" "974e75695c5f08fb9b534beec12a43b02662b0e2c637a0946851f0058fd3e304", kill_on_drop: false }` [INFO] [stderr] Compiling rusticle v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stdout] --> src/compiler/errors.rs:27:30 [INFO] [stdout] | [INFO] [stdout] 27 | fn cause(&self) -> Option<&error::Error> { [INFO] [stdout] | ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stdout] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stdout] = note: for more information, see [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ast` [INFO] [stdout] --> src/main.rs:20:9 [INFO] [stdout] | [INFO] [stdout] 20 | let ast = compiler::parse(filenames); [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_ast` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `as_non_terminal` [INFO] [stdout] --> src/compiler/parse_tree.rs:41:10 [INFO] [stdout] | [INFO] [stdout] 41 | pub fn as_non_terminal(&self) -> PTParentNode<'a> { [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `get_terminal` [INFO] [stdout] --> src/compiler/parse_tree.rs:115:10 [INFO] [stdout] | [INFO] [stdout] 115 | pub fn get_terminal(&self, node_ref: usize) -> &Token { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Declaration` [INFO] [stdout] --> src/compiler/source_ast.rs:11:3 [INFO] [stdout] | [INFO] [stdout] 11 | Declaration, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Expression` [INFO] [stdout] --> src/compiler/source_ast.rs:23:3 [INFO] [stdout] | [INFO] [stdout] 23 | Expression(ExpressionNode), [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variant is never constructed: `Number` [INFO] [stdout] --> src/compiler/lexer.rs:17:3 [INFO] [stdout] | [INFO] [stdout] 17 | Number(String), [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `start_line` [INFO] [stdout] --> src/compiler/lexer.rs:22:3 [INFO] [stdout] | [INFO] [stdout] 22 | start_line: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `start_col` [INFO] [stdout] --> src/compiler/lexer.rs:23:3 [INFO] [stdout] | [INFO] [stdout] 23 | start_col: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `end_line` [INFO] [stdout] --> src/compiler/lexer.rs:24:3 [INFO] [stdout] | [INFO] [stdout] 24 | end_line: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `end_col` [INFO] [stdout] --> src/compiler/lexer.rs:25:3 [INFO] [stdout] | [INFO] [stdout] 25 | end_col: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 11 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.81s [INFO] running `Command { std: "docker" "inspect" "974e75695c5f08fb9b534beec12a43b02662b0e2c637a0946851f0058fd3e304", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "974e75695c5f08fb9b534beec12a43b02662b0e2c637a0946851f0058fd3e304", kill_on_drop: false }` [INFO] [stdout] 974e75695c5f08fb9b534beec12a43b02662b0e2c637a0946851f0058fd3e304 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-106/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 1129e61491f2640c69437193dd71915e4b676052abdc637e7f8182dae36cf176 [INFO] running `Command { std: "docker" "start" "-a" "1129e61491f2640c69437193dd71915e4b676052abdc637e7f8182dae36cf176", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated [INFO] [stderr] --> src/compiler/errors.rs:27:30 [INFO] [stderr] | [INFO] [stderr] 27 | fn cause(&self) -> Option<&error::Error> { [INFO] [stderr] | ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(bare_trait_objects)]` on by default [INFO] [stderr] = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021! [INFO] [stderr] = note: for more information, see [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ast` [INFO] [stderr] --> src/main.rs:20:9 [INFO] [stderr] | [INFO] [stderr] 20 | let ast = compiler::parse(filenames); [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_ast` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `as_non_terminal` [INFO] [stderr] --> src/compiler/parse_tree.rs:41:10 [INFO] [stderr] | [INFO] [stderr] 41 | pub fn as_non_terminal(&self) -> PTParentNode<'a> { [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: associated function is never used: `get_terminal` [INFO] [stderr] --> src/compiler/parse_tree.rs:115:10 [INFO] [stderr] | [INFO] [stderr] 115 | pub fn get_terminal(&self, node_ref: usize) -> &Token { [INFO] [stderr] | ^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Declaration` [INFO] [stderr] --> src/compiler/source_ast.rs:11:3 [INFO] [stderr] | [INFO] [stderr] 11 | Declaration, [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Expression` [INFO] [stderr] --> src/compiler/source_ast.rs:23:3 [INFO] [stderr] | [INFO] [stderr] 23 | Expression(ExpressionNode), [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: variant is never constructed: `Number` [INFO] [stderr] --> src/compiler/lexer.rs:17:3 [INFO] [stderr] | [INFO] [stderr] 17 | Number(String), [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `start_line` [INFO] [stderr] --> src/compiler/lexer.rs:22:3 [INFO] [stderr] | [INFO] [stderr] 22 | start_line: usize, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `start_col` [INFO] [stderr] --> src/compiler/lexer.rs:23:3 [INFO] [stderr] | [INFO] [stderr] 23 | start_col: usize, [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `end_line` [INFO] [stderr] --> src/compiler/lexer.rs:24:3 [INFO] [stderr] | [INFO] [stderr] 24 | end_line: usize, [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never read: `end_col` [INFO] [stderr] --> src/compiler/lexer.rs:25:3 [INFO] [stderr] | [INFO] [stderr] 25 | end_col: usize, [INFO] [stderr] | ^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: `rusticle` (bin "rusticle" test) generated 11 warnings [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.93s [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/rusticle-275f417794f12ec0) [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] running `Command { std: "docker" "inspect" "1129e61491f2640c69437193dd71915e4b676052abdc637e7f8182dae36cf176", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1129e61491f2640c69437193dd71915e4b676052abdc637e7f8182dae36cf176", kill_on_drop: false }` [INFO] [stdout] 1129e61491f2640c69437193dd71915e4b676052abdc637e7f8182dae36cf176