[INFO] cloning repository https://github.com/jaypee92/Kopernikus_Rust_C-CodeChallenge [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jaypee92/Kopernikus_Rust_C-CodeChallenge" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaypee92%2FKopernikus_Rust_C-CodeChallenge", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjaypee92%2FKopernikus_Rust_C-CodeChallenge'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 84f208d2a62cd36ffbca53150d0e7a4a09b6e8e6 [INFO] building jaypee92/Kopernikus_Rust_C-CodeChallenge 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%2Fjaypee92%2FKopernikus_Rust_C-CodeChallenge" "/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/jaypee92/Kopernikus_Rust_C-CodeChallenge 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/jaypee92/Kopernikus_Rust_C-CodeChallenge [INFO] finished tweaking git repo https://github.com/jaypee92/Kopernikus_Rust_C-CodeChallenge [INFO] tweaked toml for git repo https://github.com/jaypee92/Kopernikus_Rust_C-CodeChallenge written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/jaypee92/Kopernikus_Rust_C-CodeChallenge 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] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] ab79d3aa1a5aeac43e333be2fcfa2a965af8384c77449b3e24808bcf9973d768 [INFO] running `Command { std: "docker" "start" "-a" "ab79d3aa1a5aeac43e333be2fcfa2a965af8384c77449b3e24808bcf9973d768", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "ab79d3aa1a5aeac43e333be2fcfa2a965af8384c77449b3e24808bcf9973d768", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ab79d3aa1a5aeac43e333be2fcfa2a965af8384c77449b3e24808bcf9973d768", kill_on_drop: false }` [INFO] [stdout] ab79d3aa1a5aeac43e333be2fcfa2a965af8384c77449b3e24808bcf9973d768 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] a3f2b2d76ec2e0aa39ca2f8c0325782239ba997faecf646af4b91d4718bebf8d [INFO] running `Command { std: "docker" "start" "-a" "a3f2b2d76ec2e0aa39ca2f8c0325782239ba997faecf646af4b91d4718bebf8d", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.149 [INFO] [stderr] Compiling libloading v0.6.7 [INFO] [stderr] Compiling cc v1.0.83 [INFO] [stderr] Compiling kopernikus-code-challenge v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> main.rs:45:13 [INFO] [stdout] | [INFO] [stdout] 45 | let mut vehicles_ptr = vehicles.as_mut_ptr(); [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> main.rs:79:13 [INFO] [stdout] | [INFO] [stdout] 79 | let mut shared_vehicles_ptr = shared_lib_vehicles.as_mut_ptr(); [INFO] [stdout] | ----^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> main.rs:52:46 [INFO] [stdout] | [INFO] [stdout] 52 | println!("Task 4: next_id in C: {}", next_id); [INFO] [stdout] | ^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.40s [INFO] running `Command { std: "docker" "inspect" "a3f2b2d76ec2e0aa39ca2f8c0325782239ba997faecf646af4b91d4718bebf8d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a3f2b2d76ec2e0aa39ca2f8c0325782239ba997faecf646af4b91d4718bebf8d", kill_on_drop: false }` [INFO] [stdout] a3f2b2d76ec2e0aa39ca2f8c0325782239ba997faecf646af4b91d4718bebf8d [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] c22e526eede495ef3563c17dd365518b48ff54ce1daa1a0e38bc1fca6b1890cf [INFO] running `Command { std: "docker" "start" "-a" "c22e526eede495ef3563c17dd365518b48ff54ce1daa1a0e38bc1fca6b1890cf", kill_on_drop: false }` [INFO] [stderr] Compiling kopernikus-code-challenge v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> main.rs:45:13 [INFO] [stdout] | [INFO] [stdout] 45 | let mut vehicles_ptr = vehicles.as_mut_ptr(); [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> main.rs:79:13 [INFO] [stdout] | [INFO] [stdout] 79 | let mut shared_vehicles_ptr = shared_lib_vehicles.as_mut_ptr(); [INFO] [stdout] | ----^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: creating a shared reference to mutable static is discouraged [INFO] [stdout] --> main.rs:52:46 [INFO] [stdout] | [INFO] [stdout] 52 | println!("Task 4: next_id in C: {}", next_id); [INFO] [stdout] | ^^^^^^^ shared reference to mutable static [INFO] [stdout] | [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives [INFO] [stdout] = note: `#[warn(static_mut_refs)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.33s [INFO] running `Command { std: "docker" "inspect" "c22e526eede495ef3563c17dd365518b48ff54ce1daa1a0e38bc1fca6b1890cf", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c22e526eede495ef3563c17dd365518b48ff54ce1daa1a0e38bc1fca6b1890cf", kill_on_drop: false }` [INFO] [stdout] c22e526eede495ef3563c17dd365518b48ff54ce1daa1a0e38bc1fca6b1890cf