[INFO] cloning repository https://github.com/georgiod9/concurrent-line-counter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/georgiod9/concurrent-line-counter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeorgiod9%2Fconcurrent-line-counter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeorgiod9%2Fconcurrent-line-counter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0428dba209cde450556c69ada89440c1646bec5d
[INFO] building georgiod9/concurrent-line-counter against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgeorgiod9%2Fconcurrent-line-counter" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/georgiod9/concurrent-line-counter on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/georgiod9/concurrent-line-counter
[INFO] finished tweaking git repo https://github.com/georgiod9/concurrent-line-counter
[INFO] tweaked toml for git repo https://github.com/georgiod9/concurrent-line-counter written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/georgiod9/concurrent-line-counter 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9e807e98bc0d29af56955c9f376b70018b3c39d35532b021919cf084f53e2072
[INFO] running `Command { std: "docker" "start" "-a" "9e807e98bc0d29af56955c9f376b70018b3c39d35532b021919cf084f53e2072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9e807e98bc0d29af56955c9f376b70018b3c39d35532b021919cf084f53e2072", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e807e98bc0d29af56955c9f376b70018b3c39d35532b021919cf084f53e2072", kill_on_drop: false }`
[INFO] [stdout] 9e807e98bc0d29af56955c9f376b70018b3c39d35532b021919cf084f53e2072
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e88cbb4f67ec1eb71e7c76793c06e3a3e7a046282dc9482e8dc7543dc254b17f
[INFO] running `Command { std: "docker" "start" "-a" "e88cbb4f67ec1eb71e7c76793c06e3a3e7a046282dc9482e8dc7543dc254b17f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.155
[INFO] [stderr]    Compiling num_cpus v1.16.0
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling concurrent_line_counter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `process_file` is never used
[INFO] [stdout]  --> src/file_processor.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn process_file(file_path: &str) -> io::Result<usize> {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.84s
[INFO] running `Command { std: "docker" "inspect" "e88cbb4f67ec1eb71e7c76793c06e3a3e7a046282dc9482e8dc7543dc254b17f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e88cbb4f67ec1eb71e7c76793c06e3a3e7a046282dc9482e8dc7543dc254b17f", kill_on_drop: false }`
[INFO] [stdout] e88cbb4f67ec1eb71e7c76793c06e3a3e7a046282dc9482e8dc7543dc254b17f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23a12c2692338167a992b6f2d078742d2e3a75d206b52e53f0ff745752ea8956
[INFO] running `Command { std: "docker" "start" "-a" "23a12c2692338167a992b6f2d078742d2e3a75d206b52e53f0ff745752ea8956", kill_on_drop: false }`
[INFO] [stderr]    Compiling concurrent_line_counter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `process_file` is never used
[INFO] [stdout]  --> src/file_processor.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub fn process_file(file_path: &str) -> io::Result<usize> {
[INFO] [stdout]   |        ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "23a12c2692338167a992b6f2d078742d2e3a75d206b52e53f0ff745752ea8956", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23a12c2692338167a992b6f2d078742d2e3a75d206b52e53f0ff745752ea8956", kill_on_drop: false }`
[INFO] [stdout] 23a12c2692338167a992b6f2d078742d2e3a75d206b52e53f0ff745752ea8956