[INFO] cloning repository https://github.com/enricobottazzi/halo2-fibonacci-ex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/enricobottazzi/halo2-fibonacci-ex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fenricobottazzi%2Fhalo2-fibonacci-ex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fenricobottazzi%2Fhalo2-fibonacci-ex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3e6fd45693cbbf3ecb2462b725fe71d43da1ccf0
[INFO] checking enricobottazzi/halo2-fibonacci-ex against try#c659ee110de67e82444e4b6c8407c1a9af9c2cf6 for pr-145608-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fenricobottazzi%2Fhalo2-fibonacci-ex" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/enricobottazzi/halo2-fibonacci-ex
[INFO] finished tweaking git repo https://github.com/enricobottazzi/halo2-fibonacci-ex
[INFO] tweaked toml for git repo https://github.com/enricobottazzi/halo2-fibonacci-ex written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/enricobottazzi/halo2-fibonacci-ex on toolchain c659ee110de67e82444e4b6c8407c1a9af9c2cf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/enricobottazzi/halo2-fibonacci-ex already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6feec0bdaaf7aa5d954f6a9f7773dc483540e3aa55cf9cf1b6748a80f1ae2682
[INFO] running `Command { std: "docker" "start" "-a" "6feec0bdaaf7aa5d954f6a9f7773dc483540e3aa55cf9cf1b6748a80f1ae2682", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6feec0bdaaf7aa5d954f6a9f7773dc483540e3aa55cf9cf1b6748a80f1ae2682", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6feec0bdaaf7aa5d954f6a9f7773dc483540e3aa55cf9cf1b6748a80f1ae2682", kill_on_drop: false }`
[INFO] [stdout] 6feec0bdaaf7aa5d954f6a9f7773dc483540e3aa55cf9cf1b6748a80f1ae2682
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+c659ee110de67e82444e4b6c8407c1a9af9c2cf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb27ebbb72334d365152578a7c33e86966b7bc02ae18e642bc303b966415971d
[INFO] running `Command { std: "docker" "start" "-a" "fb27ebbb72334d365152578a7c33e86966b7bc02ae18e642bc303b966415971d", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling rayon-core v1.11.0
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]     Checking constant_time_eq v0.2.5
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]     Checking blake2b_simd v1.0.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.7
[INFO] [stderr]     Checking crossbeam-deque v0.8.3
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking rayon v1.7.0
[INFO] [stderr]     Checking ff v0.12.1
[INFO] [stderr]     Checking group v0.12.1
[INFO] [stderr]     Checking pasta_curves v0.4.1
[INFO] [stderr]     Checking halo2_proofs v0.1.0
[INFO] [stderr]     Checking halo2-fibonacci-ex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0425]: cannot find function `print_circuit` in this scope
[INFO] [stdout]    --> src/bin/example2.rs:274:5
[INFO] [stdout]     |
[INFO] [stdout] 274 |     print_circuit();
[INFO] [stdout]     |     ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> src/bin/example2.rs:279:4
[INFO] [stdout]     |
[INFO] [stdout] 278 | #[cfg(feature = "dev-graph")]
[INFO] [stdout]     |       --------------------- the item is gated behind the `dev-graph` feature
[INFO] [stdout] 279 | fn print_circuit() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/example2.rs:225:14
[INFO] [stdout]     |
[INFO] [stdout] 225 |         let (mut prev_a, mut prev_b, mut prev_c) = chip.assign_first_row(layouter.namespace(|| "first row"), self.a, self.b)?;
[INFO] [stdout]     |              ----^^^^^^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `halo2-fibonacci-ex` (bin "example2" test) due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/example1.rs:97:13
[INFO] [stdout]    |
[INFO] [stdout] 97 |             self.config.selector.enable(&mut region, 0);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 97 |             let _ = self.config.selector.enable(&mut region, 0);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/bin/example1.rs:136:17
[INFO] [stdout]     |
[INFO] [stdout] 136 |                 self.config.selector.enable(&mut region, 0);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 136 |                 let _ = self.config.selector.enable(&mut region, 0);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `print_circuit` in this scope
[INFO] [stdout]    --> src/bin/example2.rs:274:5
[INFO] [stdout]     |
[INFO] [stdout] 274 |     print_circuit();
[INFO] [stdout]     |     ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> src/bin/example2.rs:279:4
[INFO] [stdout]     |
[INFO] [stdout] 278 | #[cfg(feature = "dev-graph")]
[INFO] [stdout]     |       --------------------- the item is gated behind the `dev-graph` feature
[INFO] [stdout] 279 | fn print_circuit() {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/example2.rs:225:14
[INFO] [stdout]     |
[INFO] [stdout] 225 |         let (mut prev_a, mut prev_b, mut prev_c) = chip.assign_first_row(layouter.namespace(|| "first row"), self.a, self.b)?;
[INFO] [stdout]     |              ----^^^^^^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `print_circuit` in this scope
[INFO] [stdout]    --> src/bin/example3.rs:197:5
[INFO] [stdout]     |
[INFO] [stdout] 197 |     print_circuit(&circuit);
[INFO] [stdout]     |     ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> src/bin/example3.rs:202:4
[INFO] [stdout]     |
[INFO] [stdout] 201 | #[cfg(feature = "dev-graph")]
[INFO] [stdout]     |       --------------------- the item is gated behind the `dev-graph` feature
[INFO] [stdout] 202 | fn print_circuit(circuit: &MyCircuit<Fp>) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `halo2-fibonacci-ex` (bin "example3") due to 1 previous error
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/bin/example1.rs:97:13
[INFO] [stdout]    |
[INFO] [stdout] 97 |             self.config.selector.enable(&mut region, 0);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 97 |             let _ = self.config.selector.enable(&mut region, 0);
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/bin/example1.rs:136:17
[INFO] [stdout]     |
[INFO] [stdout] 136 |                 self.config.selector.enable(&mut region, 0);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 136 |                 let _ = self.config.selector.enable(&mut region, 0);
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `print_circuit` in this scope
[INFO] [stdout]    --> src/bin/example3.rs:197:5
[INFO] [stdout]     |
[INFO] [stdout] 197 |     print_circuit(&circuit);
[INFO] [stdout]     |     ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout]     |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]    --> src/bin/example3.rs:202:4
[INFO] [stdout]     |
[INFO] [stdout] 201 | #[cfg(feature = "dev-graph")]
[INFO] [stdout]     |       --------------------- the item is gated behind the `dev-graph` feature
[INFO] [stdout] 202 | fn print_circuit(circuit: &MyCircuit<Fp>) {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `halo2-fibonacci-ex` (bin "example2") due to 1 previous error; 1 warning emitted
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `halo2-fibonacci-ex` (bin "example3" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "fb27ebbb72334d365152578a7c33e86966b7bc02ae18e642bc303b966415971d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb27ebbb72334d365152578a7c33e86966b7bc02ae18e642bc303b966415971d", kill_on_drop: false }`
[INFO] [stdout] fb27ebbb72334d365152578a7c33e86966b7bc02ae18e642bc303b966415971d