[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/7e447dbbc53c61bd256664a68f2fdac77a3f542e against master#c5af0610196bc39c44e54f1e08bd9149bdc66929 for pr-118120
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjyn514%2Frustc-79671-repro" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jyn514/rustc-79671-repro on toolchain c5af0610196bc39c44e54f1e08bd9149bdc66929
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c5af0610196bc39c44e54f1e08bd9149bdc66929" "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-2-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c5af0610196bc39c44e54f1e08bd9149bdc66929" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking jyn514/rustc-79671-repro/7e447dbbc53c61bd256664a68f2fdac77a3f542e against try#a832c07a2bcc7587230eb0706f83d1d602ae5c2b for pr-118120
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjyn514%2Frustc-79671-repro" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jyn514/rustc-79671-repro on toolchain a832c07a2bcc7587230eb0706f83d1d602ae5c2b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a832c07a2bcc7587230eb0706f83d1d602ae5c2b" "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-2-tc2/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a832c07a2bcc7587230eb0706f83d1d602ae5c2b" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking jyn514/rustc-79671-repro/7e447dbbc53c61bd256664a68f2fdac77a3f542e against try#a832c07a2bcc7587230eb0706f83d1d602ae5c2b for pr-118120
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjyn514%2Frustc-79671-repro" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jyn514/rustc-79671-repro on toolchain a832c07a2bcc7587230eb0706f83d1d602ae5c2b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a832c07a2bcc7587230eb0706f83d1d602ae5c2b" "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-2-tc2/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a832c07a2bcc7587230eb0706f83d1d602ae5c2b" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking jyn514/rustc-79671-repro/7e447dbbc53c61bd256664a68f2fdac77a3f542e against try#a832c07a2bcc7587230eb0706f83d1d602ae5c2b for pr-118120
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjyn514%2Frustc-79671-repro" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jyn514/rustc-79671-repro on toolchain a832c07a2bcc7587230eb0706f83d1d602ae5c2b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a832c07a2bcc7587230eb0706f83d1d602ae5c2b" "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-2-tc2/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a832c07a2bcc7587230eb0706f83d1d602ae5c2b" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+a832c07a2bcc7587230eb0706f83d1d602ae5c2b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 06e31780559d5af94b8d1a1319ef30f0be026884b742a565f2dfd1166586fd6e
[INFO] running `Command { std: "docker" "start" "-a" "06e31780559d5af94b8d1a1319ef30f0be026884b742a565f2dfd1166586fd6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06e31780559d5af94b8d1a1319ef30f0be026884b742a565f2dfd1166586fd6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06e31780559d5af94b8d1a1319ef30f0be026884b742a565f2dfd1166586fd6e", kill_on_drop: false }`
[INFO] [stdout] 06e31780559d5af94b8d1a1319ef30f0be026884b742a565f2dfd1166586fd6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+a832c07a2bcc7587230eb0706f83d1d602ae5c2b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b160af61ccdfb31d5f35cadac2bcb3f2175d71834e61e2ef399b1027b91ecb16
[INFO] running `Command { std: "docker" "start" "-a" "b160af61ccdfb31d5f35cadac2bcb3f2175d71834e61e2ef399b1027b91ecb16", kill_on_drop: false }`
[INFO] [stderr]     Checking a v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Top` is never constructed
[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 items `new`, `reset`, `posedge_clk`, and `prop` are never used
[INFO] [stdout]     --> src/modules.rs:1359:12
[INFO] [stdout]      |
[INFO] [stdout] 1358 | impl Top {
[INFO] [stdout]      | -------- associated items in this implementation
[INFO] [stdout] 1359 |     pub fn new() -> Top {
[INFO] [stdout]      |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 3007 |     pub fn reset(&mut self) {
[INFO] [stdout]      |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 3129 |     pub fn posedge_clk(&mut self) {
[INFO] [stdout]      |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 3708 |     pub fn prop(&mut self) {
[INFO] [stdout]      |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Top` is never constructed
[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 items `new`, `reset`, `posedge_clk`, and `prop` are never used
[INFO] [stdout]     --> src/modules.rs:1359:12
[INFO] [stdout]      |
[INFO] [stdout] 1358 | impl Top {
[INFO] [stdout]      | -------- associated items in this implementation
[INFO] [stdout] 1359 |     pub fn new() -> Top {
[INFO] [stdout]      |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 3007 |     pub fn reset(&mut self) {
[INFO] [stdout]      |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 3129 |     pub fn posedge_clk(&mut self) {
[INFO] [stdout]      |            ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 3708 |     pub fn prop(&mut self) {
[INFO] [stdout]      |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.68s
[INFO] running `Command { std: "docker" "inspect" "b160af61ccdfb31d5f35cadac2bcb3f2175d71834e61e2ef399b1027b91ecb16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b160af61ccdfb31d5f35cadac2bcb3f2175d71834e61e2ef399b1027b91ecb16", kill_on_drop: false }`
[INFO] [stdout] b160af61ccdfb31d5f35cadac2bcb3f2175d71834e61e2ef399b1027b91ecb16