[INFO] cloning repository https://github.com/christalberg/random_matrix_generator [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/christalberg/random_matrix_generator" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchristalberg%2Frandom_matrix_generator", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchristalberg%2Frandom_matrix_generator'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 07120ee1530fc2314a4002f2e0e7f64fb367820b [INFO] checking christalberg/random_matrix_generator against beta for pr-78714 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchristalberg%2Frandom_matrix_generator" "/workspace/builds/worker-9/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/christalberg/random_matrix_generator on toolchain beta [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/christalberg/random_matrix_generator [INFO] finished tweaking git repo https://github.com/christalberg/random_matrix_generator [INFO] tweaked toml for git repo https://github.com/christalberg/random_matrix_generator written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate git repo https://github.com/christalberg/random_matrix_generator already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5d8a83176b311218358567dad24c75882ae887c9a36a32e24fbe6c2fce03990e [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "5d8a83176b311218358567dad24c75882ae887c9a36a32e24fbe6c2fce03990e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5d8a83176b311218358567dad24c75882ae887c9a36a32e24fbe6c2fce03990e", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5d8a83176b311218358567dad24c75882ae887c9a36a32e24fbe6c2fce03990e", kill_on_drop: false }` [INFO] [stdout] 5d8a83176b311218358567dad24c75882ae887c9a36a32e24fbe6c2fce03990e [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e54bc9b39e3f7c49464fe063d721a1212148711ceaff5735f66c70c0f010eb94 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "e54bc9b39e3f7c49464fe063d721a1212148711ceaff5735f66c70c0f010eb94", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.78 [INFO] [stderr] Checking getrandom v0.1.15 [INFO] [stderr] Checking rand_core v0.5.1 [INFO] [stderr] Checking rand_chacha v0.2.2 [INFO] [stderr] Checking rand v0.7.3 [INFO] [stderr] Checking random_matrix_generator v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: value assigned to `num` is never read [INFO] [stdout] --> src/main.rs:29:25 [INFO] [stdout] | [INFO] [stdout] 29 | let mut num = String::new(); [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: value assigned to `num` is never read [INFO] [stdout] --> src/main.rs:29:25 [INFO] [stdout] | [INFO] [stdout] 29 | let mut num = String::new(); [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_assignments)]` on by default [INFO] [stdout] = help: maybe it is overwritten before being read? [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 5.07s [INFO] running `Command { std: "docker" "inspect" "e54bc9b39e3f7c49464fe063d721a1212148711ceaff5735f66c70c0f010eb94", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e54bc9b39e3f7c49464fe063d721a1212148711ceaff5735f66c70c0f010eb94", kill_on_drop: false }` [INFO] [stdout] e54bc9b39e3f7c49464fe063d721a1212148711ceaff5735f66c70c0f010eb94