[INFO] cloning repository https://github.com/jyn514/rustc-79671-repro
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jyn514/rustc-79671-repro" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjyn514%2Frustc-79671-repro", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjyn514%2Frustc-79671-repro'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e447dbbc53c61bd256664a68f2fdac77a3f542e
[INFO] checking jyn514/rustc-79671-repro against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjyn514%2Frustc-79671-repro" "/workspace/builds/worker-47/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-47/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jyn514/rustc-79671-repro on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jyn514/rustc-79671-repro
[INFO] finished tweaking git repo https://github.com/jyn514/rustc-79671-repro
[INFO] tweaked toml for git repo https://github.com/jyn514/rustc-79671-repro written to /workspace/builds/worker-47/source/Cargo.toml
[INFO] crate git repo https://github.com/jyn514/rustc-79671-repro already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b4928cfd42b49cc8f3c0d8517960dc168c248597bcd31d5cc1d4d26bb09a1195
[INFO] running `Command { std: "docker" "start" "-a" "b4928cfd42b49cc8f3c0d8517960dc168c248597bcd31d5cc1d4d26bb09a1195", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4928cfd42b49cc8f3c0d8517960dc168c248597bcd31d5cc1d4d26bb09a1195", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4928cfd42b49cc8f3c0d8517960dc168c248597bcd31d5cc1d4d26bb09a1195", kill_on_drop: false }`
[INFO] [stdout] b4928cfd42b49cc8f3c0d8517960dc168c248597bcd31d5cc1d4d26bb09a1195
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-47/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9dbee8e59793ff41d46c7fe464b3de2a5abe96e70d41e65dd754a98114e3338
[INFO] running `Command { std: "docker" "start" "-a" "d9dbee8e59793ff41d46c7fe464b3de2a5abe96e70d41e65dd754a98114e3338", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking a v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stdout] warning: struct is never constructed: `Top`
[INFO] [stdout]  --> src/modules.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Top{
[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: `new`
[INFO] [stdout]     --> src/modules.rs:1359:12
[INFO] [stdout]      |
[INFO] [stdout] 1359 |     pub fn new() -> Top {
[INFO] [stdout]      |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reset`
[INFO] [stdout]     --> src/modules.rs:3007:12
[INFO] [stdout]      |
[INFO] [stdout] 3007 |     pub fn reset(&mut self) {
[INFO] [stdout]      |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `posedge_clk`
[INFO] [stdout]     --> src/modules.rs:3129:12
[INFO] [stdout]      |
[INFO] [stdout] 3129 |     pub fn posedge_clk(&mut self) {
[INFO] [stdout]      |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `prop`
[INFO] [stdout]     --> src/modules.rs:3708:12
[INFO] [stdout]      |
[INFO] [stdout] 3708 |     pub fn prop(&mut self) {
[INFO] [stdout]      |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Top`
[INFO] [stdout]  --> src/modules.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Top{
[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: `new`
[INFO] [stdout]     --> src/modules.rs:1359:12
[INFO] [stdout]      |
[INFO] [stdout] 1359 |     pub fn new() -> Top {
[INFO] [stdout]      |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reset`
[INFO] [stdout]     --> src/modules.rs:3007:12
[INFO] [stdout]      |
[INFO] [stdout] 3007 |     pub fn reset(&mut self) {
[INFO] [stdout]      |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `posedge_clk`
[INFO] [stdout]     --> src/modules.rs:3129:12
[INFO] [stdout]      |
[INFO] [stdout] 3129 |     pub fn posedge_clk(&mut self) {
[INFO] [stdout]      |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `prop`
[INFO] [stdout]     --> src/modules.rs:3708:12
[INFO] [stdout]      |
[INFO] [stdout] 3708 |     pub fn prop(&mut self) {
[INFO] [stdout]      |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5m 58s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Checking a v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: struct is never constructed: `Top`
[INFO] [stdout]  --> src/modules.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Top{
[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: `new`
[INFO] [stdout]     --> src/modules.rs:1359:12
[INFO] [stdout]      |
[INFO] [stdout] 1359 |     pub fn new() -> Top {
[INFO] [stdout]      |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reset`
[INFO] [stdout]     --> src/modules.rs:3007:12
[INFO] [stdout]      |
[INFO] [stdout] 3007 |     pub fn reset(&mut self) {
[INFO] [stdout]      |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `posedge_clk`
[INFO] [stdout]     --> src/modules.rs:3129:12
[INFO] [stdout]      |
[INFO] [stdout] 3129 |     pub fn posedge_clk(&mut self) {
[INFO] [stdout]      |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `prop`
[INFO] [stdout]     --> src/modules.rs:3708:12
[INFO] [stdout]      |
[INFO] [stdout] 3708 |     pub fn prop(&mut self) {
[INFO] [stdout]      |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Top`
[INFO] [stdout]  --> src/modules.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct Top{
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]     --> src/modules.rs:1359:12
[INFO] [stdout]      |
[INFO] [stdout] 1359 |     pub fn new() -> Top {
[INFO] [stdout]      |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `reset`
[INFO] [stdout]     --> src/modules.rs:3007:12
[INFO] [stdout]      |
[INFO] [stdout] 3007 |     pub fn reset(&mut self) {
[INFO] [stdout]      |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `posedge_clk`
[INFO] [stdout]     --> src/modules.rs:3129:12
[INFO] [stdout]      |
[INFO] [stdout] 3129 |     pub fn posedge_clk(&mut self) {
[INFO] [stdout]      |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `prop`
[INFO] [stdout]     --> src/modules.rs:3708:12
[INFO] [stdout]      |
[INFO] [stdout] 3708 |     pub fn prop(&mut self) {
[INFO] [stdout]      |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 38s
[INFO] running `Command { std: "docker" "inspect" "d9dbee8e59793ff41d46c7fe464b3de2a5abe96e70d41e65dd754a98114e3338", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9dbee8e59793ff41d46c7fe464b3de2a5abe96e70d41e65dd754a98114e3338", kill_on_drop: false }`
[INFO] [stdout] d9dbee8e59793ff41d46c7fe464b3de2a5abe96e70d41e65dd754a98114e3338