[INFO] cloning repository https://github.com/lizhiquan/regex-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lizhiquan/regex-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flizhiquan%2Fregex-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flizhiquan%2Fregex-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b4dc8739ad2376dab19850c7daedf8800ce362a2
[INFO] checking lizhiquan/regex-rs against try#2b39fe756f52bc2825bf5b2bfc385cab922dae10 for pr-143011
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flizhiquan%2Fregex-rs" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lizhiquan/regex-rs
[INFO] finished tweaking git repo https://github.com/lizhiquan/regex-rs
[INFO] tweaked toml for git repo https://github.com/lizhiquan/regex-rs written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lizhiquan/regex-rs on toolchain 2b39fe756f52bc2825bf5b2bfc385cab922dae10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lizhiquan/regex-rs 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" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "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 lizhiquan/regex-rs against try#2b39fe756f52bc2825bf5b2bfc385cab922dae10 for pr-143011
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flizhiquan%2Fregex-rs" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lizhiquan/regex-rs
[INFO] finished tweaking git repo https://github.com/lizhiquan/regex-rs
[INFO] tweaked toml for git repo https://github.com/lizhiquan/regex-rs written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lizhiquan/regex-rs on toolchain 2b39fe756f52bc2825bf5b2bfc385cab922dae10
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lizhiquan/regex-rs 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" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b1513bcbd7f9f18a03a941ae08e5dbd95d2ce4fd088309fbacd31b36a36bee46
[INFO] running `Command { std: "docker" "start" "-a" "b1513bcbd7f9f18a03a941ae08e5dbd95d2ce4fd088309fbacd31b36a36bee46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b1513bcbd7f9f18a03a941ae08e5dbd95d2ce4fd088309fbacd31b36a36bee46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1513bcbd7f9f18a03a941ae08e5dbd95d2ce4fd088309fbacd31b36a36bee46", kill_on_drop: false }`
[INFO] [stdout] b1513bcbd7f9f18a03a941ae08e5dbd95d2ce4fd088309fbacd31b36a36bee46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+2b39fe756f52bc2825bf5b2bfc385cab922dae10" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b87ef54d690413a6b9d195e3d52d2a1dda696ffb2b655c5830f58639ed4e1dc
[INFO] running `Command { std: "docker" "start" "-a" "5b87ef54d690413a6b9d195e3d52d2a1dda696ffb2b655c5830f58639ed4e1dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]     Checking regex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `Exact` and `Range` are never constructed
[INFO] [stdout]   --> src/parser.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub(crate) enum Quantifier {
[INFO] [stdout]    |                 ---------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 32 |     Exact(usize),                // {n}
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 33 |     Range(usize, Option<usize>), // {n,m}
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Quantifier` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/compiler.rs:100:29
[INFO] [stdout]     |
[INFO] [stdout] 100 |     pub(crate) fn new(text: &str) -> Cursor {
[INFO] [stdout]     |                             ^^^^     ------ the lifetime gets resolved as `'_`
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 100 |     pub(crate) fn new(text: &str) -> Cursor<'_> {
[INFO] [stdout]     |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/matcher.rs:13:55
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub(crate) fn new(machine: CompiledMachine, text: &str) -> Matcher {
[INFO] [stdout]    |                                                       ^^^^     ------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                                                       |
[INFO] [stdout]    |                                                       this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub(crate) fn new(machine: CompiledMachine, text: &str) -> Matcher<'_> {
[INFO] [stdout]    |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/parser.rs:110:32
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub(crate) fn new(pattern: &str) -> Parser {
[INFO] [stdout]     |                                ^^^^     ------ the lifetime gets resolved as `'_`
[INFO] [stdout]     |                                |
[INFO] [stdout]     |                                this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub(crate) fn new(pattern: &str) -> Parser<'_> {
[INFO] [stdout]     |                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Exact` and `Range` are never constructed
[INFO] [stdout]   --> src/parser.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub(crate) enum Quantifier {
[INFO] [stdout]    |                 ---------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 32 |     Exact(usize),                // {n}
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 33 |     Range(usize, Option<usize>), // {n,m}
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Quantifier` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/compiler.rs:100:29
[INFO] [stdout]     |
[INFO] [stdout] 100 |     pub(crate) fn new(text: &str) -> Cursor {
[INFO] [stdout]     |                             ^^^^     ------ the lifetime gets resolved as `'_`
[INFO] [stdout]     |                             |
[INFO] [stdout]     |                             this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 100 |     pub(crate) fn new(text: &str) -> Cursor<'_> {
[INFO] [stdout]     |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/matcher.rs:13:55
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub(crate) fn new(machine: CompiledMachine, text: &str) -> Matcher {
[INFO] [stdout]    |                                                       ^^^^     ------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                                                       |
[INFO] [stdout]    |                                                       this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub(crate) fn new(machine: CompiledMachine, text: &str) -> Matcher<'_> {
[INFO] [stdout]    |                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]    --> src/parser.rs:110:32
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub(crate) fn new(pattern: &str) -> Parser {
[INFO] [stdout]     |                                ^^^^     ------ the lifetime gets resolved as `'_`
[INFO] [stdout]     |                                |
[INFO] [stdout]     |                                this lifetime flows to the output
[INFO] [stdout]     |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]     |
[INFO] [stdout] 110 |     pub(crate) fn new(pattern: &str) -> Parser<'_> {
[INFO] [stdout]     |                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "5b87ef54d690413a6b9d195e3d52d2a1dda696ffb2b655c5830f58639ed4e1dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b87ef54d690413a6b9d195e3d52d2a1dda696ffb2b655c5830f58639ed4e1dc", kill_on_drop: false }`
[INFO] [stdout] 5b87ef54d690413a6b9d195e3d52d2a1dda696ffb2b655c5830f58639ed4e1dc
