[INFO] cloning repository https://github.com/j84guo/ece459-a4 [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/j84guo/ece459-a4" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj84guo%2Fece459-a4", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj84guo%2Fece459-a4'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 6e9c8128269301aa41b10d397d197d511b8b8916 [INFO] checking j84guo/ece459-a4 against master#dfd7b8d03fb93d0e03147d28b3be6d93260fa94d for pr-87050 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fj84guo%2Fece459-a4" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/j84guo/ece459-a4 on toolchain dfd7b8d03fb93d0e03147d28b3be6d93260fa94d [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/j84guo/ece459-a4 [INFO] finished tweaking git repo https://github.com/j84guo/ece459-a4 [INFO] tweaked toml for git repo https://github.com/j84guo/ece459-a4 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/j84guo/ece459-a4 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6625d14d6de32cd6bff2db33012e3537fc873e93cc8b9c06d8949c68a0f5c7a5 [INFO] running `Command { std: "docker" "start" "-a" "6625d14d6de32cd6bff2db33012e3537fc873e93cc8b9c06d8949c68a0f5c7a5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6625d14d6de32cd6bff2db33012e3537fc873e93cc8b9c06d8949c68a0f5c7a5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6625d14d6de32cd6bff2db33012e3537fc873e93cc8b9c06d8949c68a0f5c7a5", kill_on_drop: false }` [INFO] [stdout] 6625d14d6de32cd6bff2db33012e3537fc873e93cc8b9c06d8949c68a0f5c7a5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+dfd7b8d03fb93d0e03147d28b3be6d93260fa94d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 46098754f59fb456b6cba1fefe9ab676de711a71de619c0cc1d32b7b9b2851c2 [INFO] running `Command { std: "docker" "start" "-a" "46098754f59fb456b6cba1fefe9ab676de711a71de619c0cc1d32b7b9b2851c2", kill_on_drop: false }` [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling version_check v0.9.2 [INFO] [stderr] Compiling maybe-uninit v2.0.0 [INFO] [stderr] Checking scopeguard v1.1.0 [INFO] [stderr] Checking opaque-debug v0.3.0 [INFO] [stderr] Checking cpuid-bool v0.1.2 [INFO] [stderr] Checking crossbeam-utils v0.7.2 [INFO] [stderr] Compiling generic-array v0.14.4 [INFO] [stderr] Checking crossbeam-epoch v0.8.2 [INFO] [stderr] Checking crossbeam-channel v0.4.3 [INFO] [stderr] Checking crossbeam-queue v0.2.3 [INFO] [stderr] Checking crossbeam-deque v0.7.3 [INFO] [stderr] Checking crossbeam v0.7.3 [INFO] [stderr] Checking block-buffer v0.9.0 [INFO] [stderr] Checking digest v0.9.0 [INFO] [stderr] Checking sha2 v0.9.1 [INFO] [stderr] Checking lab4 v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `super::Event` [INFO] [stdout] --> src/idea.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use super::Event; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::Event` [INFO] [stdout] --> src/package.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use super::Event; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Sender` [INFO] [stdout] --> src/student.rs:4:36 [INFO] [stdout] | [INFO] [stdout] 4 | use crossbeam::channel::{Receiver, Sender}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Event` [INFO] [stdout] --> src/student.rs:6:33 [INFO] [stdout] | [INFO] [stdout] 6 | use super::{checksum::Checksum, Event, idea::Idea, package::Package}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::Event` [INFO] [stdout] --> src/idea.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use super::Event; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `super::Event` [INFO] [stdout] --> src/package.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use super::Event; [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Sender` [INFO] [stdout] --> src/student.rs:4:36 [INFO] [stdout] | [INFO] [stdout] 4 | use crossbeam::channel::{Receiver, Sender}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Event` [INFO] [stdout] --> src/student.rs:6:33 [INFO] [stdout] | [INFO] [stdout] 6 | use super::{checksum::Checksum, Event, idea::Idea, package::Package}; [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `num_students` [INFO] [stdout] --> src/idea.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | num_students: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `num_packages` [INFO] [stdout] --> src/idea.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | num_packages: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `num_students` [INFO] [stdout] --> src/idea.rs:17:5 [INFO] [stdout] | [INFO] [stdout] 17 | num_students: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `num_packages` [INFO] [stdout] --> src/idea.rs:18:5 [INFO] [stdout] | [INFO] [stdout] 18 | num_packages: usize, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Event` [INFO] [stdout] --> src/main.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | Event, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Event` [INFO] [stdout] --> src/main.rs:16:5 [INFO] [stdout] | [INFO] [stdout] 16 | Event, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:160:9 [INFO] [stdout] | [INFO] [stdout] 160 | idea_send.send(None); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `Result` that must be used [INFO] [stdout] --> src/main.rs:160:9 [INFO] [stdout] | [INFO] [stdout] 160 | idea_send.send(None); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 4.24s [INFO] running `Command { std: "docker" "inspect" "46098754f59fb456b6cba1fefe9ab676de711a71de619c0cc1d32b7b9b2851c2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "46098754f59fb456b6cba1fefe9ab676de711a71de619c0cc1d32b7b9b2851c2", kill_on_drop: false }` [INFO] [stdout] 46098754f59fb456b6cba1fefe9ab676de711a71de619c0cc1d32b7b9b2851c2