[INFO] fetching crate rust-hdl-core 0.46.0...
[INFO] testing rust-hdl-core-0.46.0 against 1.99.0-beta.1+cargoflags=--release for beta-release-1.99-2
[INFO] extracting crate rust-hdl-core 0.46.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rust-hdl-core 0.46.0
[INFO] finished tweaking crates.io crate rust-hdl-core 0.46.0
[INFO] tweaked toml for crates.io crate rust-hdl-core 0.46.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rust-hdl-core 0.46.0 on toolchain 1.99.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "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" "+1.99.0-beta.1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 45 packages to highest compatible versions
[INFO] [stderr]       Adding evalexpr v6.6.0 (available: v13.1.0)
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[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 2952c49915c9a6f0f555193fad8b31f711127d91826a374e31d05972dbc7bb05
[INFO] running `Command { std: "docker" "start" "2952c49915c9a6f0f555193fad8b31f711127d91826a374e31d05972dbc7bb05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2952c49915c9a6f0f555193fad8b31f711127d91826a374e31d05972dbc7bb05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2952c49915c9a6f0f555193fad8b31f711127d91826a374e31d05972dbc7bb05" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2952c49915c9a6f0f555193fad8b31f711127d91826a374e31d05972dbc7bb05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2952c49915c9a6f0f555193fad8b31f711127d91826a374e31d05972dbc7bb05" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
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[INFO] [stderr]    Compiling rust-hdl-macros v0.46.0
[INFO] [stderr]    Compiling rust-hdl-core v0.46.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::bits::Bits`
[INFO] [stdout]  --> src/constant.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::bits::Bits;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Signal`
[INFO] [stdout]  --> src/constant.rs:8:36
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::signal::{get_signal_id, Signal};
[INFO] [stdout]   |                                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::sim_assert_eq`
[INFO] [stdout]  --> src/constant.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::sim_assert_eq;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Sim` and `Simulation`
[INFO] [stdout]   --> src/constant.rs:10:23
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::simulate::{Sim, Simulation};
[INFO] [stdout]    |                       ^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ast::Verilog` and `timing::TimingInfo`
[INFO] [stdout]  --> src/top_wrap.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{ast::Verilog, block::Block, logic::Logic, probe::Probe, timing::TimingInfo};
[INFO] [stdout]   |             ^^^^^^^^^^^^                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `module`
[INFO] [stdout]    --> src/check_timing.rs:122:28
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn add_code(&mut self, module: &str, code: Verilog) {
[INFO] [stdout]     |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_module`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]    --> src/check_timing.rs:188:9
[INFO] [stdout]     |
[INFO] [stdout] 188 |         width: &usize,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/check_timing.rs:387:9
[INFO] [stdout]     |
[INFO] [stdout] 387 |     let mut labels = vertex_sets.into_labeling();
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dot`
[INFO] [stdout]    --> src/check_timing.rs:375:9
[INFO] [stdout]     |
[INFO] [stdout] 375 |     let dot = scan.graph.dot();
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_dot`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Reset` is never constructed
[INFO] [stdout]   --> src/check_timing.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | enum SignalEdgeKind {
[INFO] [stdout]    |      -------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 30 |     Reset,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SignalEdgeKind` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_write_mode` and `set_read_mode` are never used
[INFO] [stdout]    --> src/check_timing.rs:97:8
[INFO] [stdout]     |
[INFO] [stdout]  96 | impl TimingChecker {
[INFO] [stdout]     | ------------------ methods in this implementation
[INFO] [stdout]  97 |     fn set_write_mode(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 100 |     fn set_read_mode(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `release` profile [optimized] target(s) in 44.22s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: svg v0.10.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 6`
[INFO] running `Command { std: "docker" "inspect" "2952c49915c9a6f0f555193fad8b31f711127d91826a374e31d05972dbc7bb05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "2952c49915c9a6f0f555193fad8b31f711127d91826a374e31d05972dbc7bb05" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "test" "--frozen" "--no-run" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `crate::bits::Bits`
[INFO] [stdout]  --> src/constant.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::bits::Bits;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Signal`
[INFO] [stdout]  --> src/constant.rs:8:36
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::signal::{get_signal_id, Signal};
[INFO] [stdout]   |                                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::sim_assert_eq`
[INFO] [stdout]  --> src/constant.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::sim_assert_eq;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Sim` and `Simulation`
[INFO] [stdout]   --> src/constant.rs:10:23
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::simulate::{Sim, Simulation};
[INFO] [stdout]    |                       ^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ast::Verilog` and `timing::TimingInfo`
[INFO] [stdout]  --> src/top_wrap.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{ast::Verilog, block::Block, logic::Logic, probe::Probe, timing::TimingInfo};
[INFO] [stdout]   |             ^^^^^^^^^^^^                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `module`
[INFO] [stdout]    --> src/check_timing.rs:122:28
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn add_code(&mut self, module: &str, code: Verilog) {
[INFO] [stdout]     |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_module`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]    --> src/check_timing.rs:188:9
[INFO] [stdout]     |
[INFO] [stdout] 188 |         width: &usize,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/check_timing.rs:387:9
[INFO] [stdout]     |
[INFO] [stdout] 387 |     let mut labels = vertex_sets.into_labeling();
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dot`
[INFO] [stdout]    --> src/check_timing.rs:375:9
[INFO] [stdout]     |
[INFO] [stdout] 375 |     let dot = scan.graph.dot();
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_dot`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Reset` is never constructed
[INFO] [stdout]   --> src/check_timing.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | enum SignalEdgeKind {
[INFO] [stdout]    |      -------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 30 |     Reset,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SignalEdgeKind` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rust-hdl-core v0.46.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `set_write_mode` and `set_read_mode` are never used
[INFO] [stdout]    --> src/check_timing.rs:97:8
[INFO] [stdout]     |
[INFO] [stdout]  96 | impl TimingChecker {
[INFO] [stdout]     | ------------------ methods in this implementation
[INFO] [stdout]  97 |     fn set_write_mode(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 100 |     fn set_read_mode(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::bits::Bits`
[INFO] [stdout]  --> src/constant.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::bits::Bits;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Signal`
[INFO] [stdout]  --> src/constant.rs:8:36
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::signal::{get_signal_id, Signal};
[INFO] [stdout]   |                                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::sim_assert_eq`
[INFO] [stdout]  --> src/constant.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::sim_assert_eq;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Sim` and `Simulation`
[INFO] [stdout]   --> src/constant.rs:10:23
[INFO] [stdout]    |
[INFO] [stdout] 10 | use crate::simulate::{Sim, Simulation};
[INFO] [stdout]    |                       ^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ast::Verilog` and `timing::TimingInfo`
[INFO] [stdout]  --> src/top_wrap.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{ast::Verilog, block::Block, logic::Logic, probe::Probe, timing::TimingInfo};
[INFO] [stdout]   |             ^^^^^^^^^^^^                                            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `module`
[INFO] [stdout]    --> src/check_timing.rs:122:28
[INFO] [stdout]     |
[INFO] [stdout] 122 |     fn add_code(&mut self, module: &str, code: Verilog) {
[INFO] [stdout]     |                            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_module`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `width`
[INFO] [stdout]    --> src/check_timing.rs:188:9
[INFO] [stdout]     |
[INFO] [stdout] 188 |         width: &usize,
[INFO] [stdout]     |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_width`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/check_timing.rs:387:9
[INFO] [stdout]     |
[INFO] [stdout] 387 |     let mut labels = vertex_sets.into_labeling();
[INFO] [stdout]     |         ----^^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `dot`
[INFO] [stdout]    --> src/check_timing.rs:375:9
[INFO] [stdout]     |
[INFO] [stdout] 375 |     let dot = scan.graph.dot();
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_dot`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Reset` is never constructed
[INFO] [stdout]   --> src/check_timing.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 26 | enum SignalEdgeKind {
[INFO] [stdout]    |      -------------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 30 |     Reset,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `SignalEdgeKind` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `set_write_mode` and `set_read_mode` are never used
[INFO] [stdout]    --> src/check_timing.rs:97:8
[INFO] [stdout]     |
[INFO] [stdout]  96 | impl TimingChecker {
[INFO] [stdout]     | ------------------ methods in this implementation
[INFO] [stdout]  97 |     fn set_write_mode(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 100 |     fn set_read_mode(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "2952c49915c9a6f0f555193fad8b31f711127d91826a374e31d05972dbc7bb05", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2952c49915c9a6f0f555193fad8b31f711127d91826a374e31d05972dbc7bb05", kill_on_drop: false }`
[INFO] [stdout] 2952c49915c9a6f0f555193fad8b31f711127d91826a374e31d05972dbc7bb05
