[INFO] cloning repository https://github.com/Vikas24Chauhan/Workshop-R2-regex_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Vikas24Chauhan/Workshop-R2-regex_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVikas24Chauhan%2FWorkshop-R2-regex_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVikas24Chauhan%2FWorkshop-R2-regex_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cacd49fbb473f8943f5833c97446c1e40a9ba1f1
[INFO] checking Vikas24Chauhan/Workshop-R2-regex_rust/cacd49fbb473f8943f5833c97446c1e40a9ba1f1 against master#f167efad2f51088d86180ee89177b3d7c9e7c2f5 for pr-129543
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVikas24Chauhan%2FWorkshop-R2-regex_rust" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Vikas24Chauhan/Workshop-R2-regex_rust on toolchain f167efad2f51088d86180ee89177b3d7c9e7c2f5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Vikas24Chauhan/Workshop-R2-regex_rust
[INFO] finished tweaking git repo https://github.com/Vikas24Chauhan/Workshop-R2-regex_rust
[INFO] tweaked toml for git repo https://github.com/Vikas24Chauhan/Workshop-R2-regex_rust written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Vikas24Chauhan/Workshop-R2-regex_rust 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" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2b087077065495dcc52a8159cea49a613b3fa096864378acefadf4f7a6ee880
[INFO] running `Command { std: "docker" "start" "-a" "c2b087077065495dcc52a8159cea49a613b3fa096864378acefadf4f7a6ee880", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2b087077065495dcc52a8159cea49a613b3fa096864378acefadf4f7a6ee880", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2b087077065495dcc52a8159cea49a613b3fa096864378acefadf4f7a6ee880", kill_on_drop: false }`
[INFO] [stdout] c2b087077065495dcc52a8159cea49a613b3fa096864378acefadf4f7a6ee880
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+f167efad2f51088d86180ee89177b3d7c9e7c2f5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fcfe973ba044b0b62573c0d06042153a78609803c2f41fc3be5a4b8b07e07420
[INFO] running `Command { std: "docker" "start" "-a" "fcfe973ba044b0b62573c0d06042153a78609803c2f41fc3be5a4b8b07e07420", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking ucd-util v0.1.8
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]     Checking utf8-ranges v1.0.5
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.5.6
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking regex_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.28s
[INFO] running `Command { std: "docker" "inspect" "fcfe973ba044b0b62573c0d06042153a78609803c2f41fc3be5a4b8b07e07420", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcfe973ba044b0b62573c0d06042153a78609803c2f41fc3be5a4b8b07e07420", kill_on_drop: false }`
[INFO] [stdout] fcfe973ba044b0b62573c0d06042153a78609803c2f41fc3be5a4b8b07e07420