[INFO] cloning repository https://github.com/thefireflyer/cs-240-library [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thefireflyer/cs-240-library" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthefireflyer%2Fcs-240-library", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthefireflyer%2Fcs-240-library'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e27f08d5d936d426c71a149ff2a8226706008292 [INFO] checking thefireflyer/cs-240-library against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthefireflyer%2Fcs-240-library" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/thefireflyer/cs-240-library on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/thefireflyer/cs-240-library [INFO] finished tweaking git repo https://github.com/thefireflyer/cs-240-library [INFO] tweaked toml for git repo https://github.com/thefireflyer/cs-240-library written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/thefireflyer/cs-240-library 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: unused manifest key: debug [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded serde v1.0.197 [INFO] [stderr] Downloaded tailcall-impl v1.0.1 [INFO] [stderr] Downloaded tailcall v1.0.1 [INFO] [stderr] Downloaded serde_derive v1.0.197 [INFO] [stderr] Downloaded anyhow v1.0.79 [INFO] [stderr] Downloaded syn v2.0.52 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6ea2a52cfd64a068e4a8651672b1f5a3ed8bea1ec099f944d8a2f7653f8b2f0c [INFO] running `Command { std: "docker" "start" "-a" "6ea2a52cfd64a068e4a8651672b1f5a3ed8bea1ec099f944d8a2f7653f8b2f0c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6ea2a52cfd64a068e4a8651672b1f5a3ed8bea1ec099f944d8a2f7653f8b2f0c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6ea2a52cfd64a068e4a8651672b1f5a3ed8bea1ec099f944d8a2f7653f8b2f0c", kill_on_drop: false }` [INFO] [stdout] 6ea2a52cfd64a068e4a8651672b1f5a3ed8bea1ec099f944d8a2f7653f8b2f0c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 9ea707c32cded46b0dae2a63998fda70cd65e6bbec3db5697f011c1165be9a9a [INFO] running `Command { std: "docker" "start" "-a" "9ea707c32cded46b0dae2a63998fda70cd65e6bbec3db5697f011c1165be9a9a", kill_on_drop: false }` [INFO] [stderr] warning: unused manifest key: debug [INFO] [stderr] Compiling proc-macro2 v1.0.78 [INFO] [stderr] Compiling unicode-ident v1.0.12 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Compiling quote v1.0.35 [INFO] [stderr] Compiling tailcall-impl v1.0.1 [INFO] [stderr] Checking tailcall v1.0.1 [INFO] [stderr] Checking cs-240-library v0.1.10 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `process::id` [INFO] [stdout] --> src/data_structures/linked_list/double_linked_list/solution.rs:11:44 [INFO] [stdout] | [INFO] [stdout] 11 | use std::{fmt::Debug, marker::PhantomData, process::id, ptr::NonNull}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `process::id` [INFO] [stdout] --> src/data_structures/linked_list/double_linked_list/solution.rs:11:44 [INFO] [stdout] | [INFO] [stdout] 11 | use std::{fmt::Debug, marker::PhantomData, process::id, ptr::NonNull}; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `subtree_at` is never used [INFO] [stdout] --> src/data_structures/maps/avl.rs:147:8 [INFO] [stdout] | [INFO] [stdout] 35 | impl AVL { [INFO] [stdout] | ------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 147 | fn subtree_at(&self, cursor: Cursor, index: usize) -> Cursor { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `subtree_at` is never used [INFO] [stdout] --> src/data_structures/maps/avl.rs:147:8 [INFO] [stdout] | [INFO] [stdout] 35 | impl AVL { [INFO] [stdout] | ------------------------- method in this implementation [INFO] [stdout] ... [INFO] [stdout] 147 | fn subtree_at(&self, cursor: Cursor, index: usize) -> Cursor { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.89s [INFO] running `Command { std: "docker" "inspect" "9ea707c32cded46b0dae2a63998fda70cd65e6bbec3db5697f011c1165be9a9a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9ea707c32cded46b0dae2a63998fda70cd65e6bbec3db5697f011c1165be9a9a", kill_on_drop: false }` [INFO] [stdout] 9ea707c32cded46b0dae2a63998fda70cd65e6bbec3db5697f011c1165be9a9a