[INFO] cloning repository https://github.com/Dentosal/reregex
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Dentosal/reregex" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDentosal%2Freregex", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDentosal%2Freregex'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3cf0e97ef1a45a9e468c8945d531ed1c7c99ae05
[INFO] testing Dentosal/reregex against try#9f93af291970322f4f1c6315ccde4d7078201159 for pr-146098-6
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDentosal%2Freregex" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Dentosal/reregex
[INFO] finished tweaking git repo https://github.com/Dentosal/reregex
[INFO] tweaked toml for git repo https://github.com/Dentosal/reregex written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Dentosal/reregex on toolchain 9f93af291970322f4f1c6315ccde4d7078201159
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Dentosal/reregex 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" "+9f93af291970322f4f1c6315ccde4d7078201159" "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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 25faafbf32c40184caab2c5e836b384ceb3e59f4215d4a3ce2f2e963446bcc81
[INFO] running `Command { std: "docker" "start" "-a" "25faafbf32c40184caab2c5e836b384ceb3e59f4215d4a3ce2f2e963446bcc81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "25faafbf32c40184caab2c5e836b384ceb3e59f4215d4a3ce2f2e963446bcc81", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "25faafbf32c40184caab2c5e836b384ceb3e59f4215d4a3ce2f2e963446bcc81", kill_on_drop: false }`
[INFO] [stdout] 25faafbf32c40184caab2c5e836b384ceb3e59f4215d4a3ce2f2e963446bcc81
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6914618b59fead8523c403d17bab5c0c5eae809e15494d28bbfe0bc23f9e3d59
[INFO] running `Command { std: "docker" "start" "-a" "6914618b59fead8523c403d17bab5c0c5eae809e15494d28bbfe0bc23f9e3d59", kill_on_drop: false }`
[INFO] [stderr]    Compiling reregex v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0635]: unknown feature `drain_filter`
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(drain_filter)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `drain_filter` found for struct `Vec<Vertex>` in the current scope
[INFO] [stdout]    --> src/matcher.rs:432:23
[INFO] [stdout]     |
[INFO] [stdout] 432 |         self.vertices.drain_filter(|v| {
[INFO] [stdout]     |         --------------^^^^^^^^^^^^ method not found in `Vec<Vertex>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0599, E0635.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `reregex` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "6914618b59fead8523c403d17bab5c0c5eae809e15494d28bbfe0bc23f9e3d59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6914618b59fead8523c403d17bab5c0c5eae809e15494d28bbfe0bc23f9e3d59", kill_on_drop: false }`
[INFO] [stdout] 6914618b59fead8523c403d17bab5c0c5eae809e15494d28bbfe0bc23f9e3d59
