[INFO] updating cached repository https://github.com/rummolprod999/rust_generics [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }` [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b8b176b1f85a90ade432385d8429cf05ed59c6a9 [INFO] testing rummolprod999/rust_generics against beta-2020-07-24 for beta-1.46-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frummolprod999%2Frust_generics" "/workspace/builds/worker-0/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/rummolprod999/rust_generics on toolchain beta-2020-07-24 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/rummolprod999/rust_generics [INFO] finished tweaking git repo https://github.com/rummolprod999/rust_generics [INFO] tweaked toml for git repo https://github.com/rummolprod999/rust_generics written to /workspace/builds/worker-0/source/Cargo.toml [INFO] crate git repo https://github.com/rummolprod999/rust_generics already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5ad10645fb54e25eb00db98adf27cf773c0c82f8a277c2873f1021c26274a2d0 [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" "5ad10645fb54e25eb00db98adf27cf773c0c82f8a277c2873f1021c26274a2d0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5ad10645fb54e25eb00db98adf27cf773c0c82f8a277c2873f1021c26274a2d0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5ad10645fb54e25eb00db98adf27cf773c0c82f8a277c2873f1021c26274a2d0", kill_on_drop: false }` [INFO] [stdout] 5ad10645fb54e25eb00db98adf27cf773c0c82f8a277c2873f1021c26274a2d0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4dd4f3ca3af23c161e9b7335f1efd9d03d4dd8cee4b0c921ffef062d2f7e9a91 [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" "4dd4f3ca3af23c161e9b7335f1efd9d03d4dd8cee4b0c921ffef062d2f7e9a91", kill_on_drop: false }` [INFO] [stderr] Compiling rust_generics v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `graph` [INFO] [stdout] --> src/main.rs:40:37 [INFO] [stdout] | [INFO] [stdout] 40 | fn i_distance>(graph: &G, start: &N, end: &N) -> u32 { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_graph` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `start` [INFO] [stdout] --> src/main.rs:40:48 [INFO] [stdout] | [INFO] [stdout] 40 | fn i_distance>(graph: &G, start: &N, end: &N) -> u32 { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_start` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `end` [INFO] [stdout] --> src/main.rs:40:59 [INFO] [stdout] | [INFO] [stdout] 40 | fn i_distance>(graph: &G, start: &N, end: &N) -> u32 { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_end` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `graph` [INFO] [stdout] --> src/main.rs:44:28 [INFO] [stdout] | [INFO] [stdout] 44 | fn distance(graph: &G, start: &G::N, end: &G::N) -> u32 { 32 } [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_graph` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `start` [INFO] [stdout] --> src/main.rs:44:39 [INFO] [stdout] | [INFO] [stdout] 44 | fn distance(graph: &G, start: &G::N, end: &G::N) -> u32 { 32 } [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_start` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `end` [INFO] [stdout] --> src/main.rs:44:53 [INFO] [stdout] | [INFO] [stdout] 44 | fn distance(graph: &G, start: &G::N, end: &G::N) -> u32 { 32 } [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_end` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n1` [INFO] [stdout] --> src/main.rs:21:24 [INFO] [stdout] | [INFO] [stdout] 21 | fn has_edge(&self, n1: &G, n2: &G) -> bool { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_n1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n2` [INFO] [stdout] --> src/main.rs:21:32 [INFO] [stdout] | [INFO] [stdout] 21 | fn has_edge(&self, n1: &G, n2: &G) -> bool { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_n2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/main.rs:25:21 [INFO] [stdout] | [INFO] [stdout] 25 | fn edges(&self, n: &G) -> Vec { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n1` [INFO] [stdout] --> src/main.rs:31:26 [INFO] [stdout] | [INFO] [stdout] 31 | fn i_has_edge(&self, n1: &T, n2: &T) -> bool { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_n1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n2` [INFO] [stdout] --> src/main.rs:31:34 [INFO] [stdout] | [INFO] [stdout] 31 | fn i_has_edge(&self, n1: &T, n2: &T) -> bool { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_n2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/main.rs:35:23 [INFO] [stdout] | [INFO] [stdout] 35 | fn i_edges(&self, n: &T) -> Vec { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `i_distance` [INFO] [stdout] --> src/main.rs:40:4 [INFO] [stdout] | [INFO] [stdout] 40 | fn i_distance>(graph: &G, start: &N, end: &N) -> u32 { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `distance` [INFO] [stdout] --> src/main.rs:44:4 [INFO] [stdout] | [INFO] [stdout] 44 | fn distance(graph: &G, start: &G::N, end: &G::N) -> u32 { 32 } [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.71s [INFO] running `Command { std: "docker" "inspect" "4dd4f3ca3af23c161e9b7335f1efd9d03d4dd8cee4b0c921ffef062d2f7e9a91", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4dd4f3ca3af23c161e9b7335f1efd9d03d4dd8cee4b0c921ffef062d2f7e9a91", kill_on_drop: false }` [INFO] [stdout] 4dd4f3ca3af23c161e9b7335f1efd9d03d4dd8cee4b0c921ffef062d2f7e9a91 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] e70457fcd70d565b41caadc1648bdb2bcb9fb6ef913fbf6c83307c1d92d43b64 [INFO] running `Command { std: "docker" "start" "-a" "e70457fcd70d565b41caadc1648bdb2bcb9fb6ef913fbf6c83307c1d92d43b64", kill_on_drop: false }` [INFO] [stderr] Compiling rust_generics v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `graph` [INFO] [stdout] --> src/main.rs:40:37 [INFO] [stdout] | [INFO] [stdout] 40 | fn i_distance>(graph: &G, start: &N, end: &N) -> u32 { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_graph` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `start` [INFO] [stdout] --> src/main.rs:40:48 [INFO] [stdout] | [INFO] [stdout] 40 | fn i_distance>(graph: &G, start: &N, end: &N) -> u32 { [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_start` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `end` [INFO] [stdout] --> src/main.rs:40:59 [INFO] [stdout] | [INFO] [stdout] 40 | fn i_distance>(graph: &G, start: &N, end: &N) -> u32 { [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_end` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `graph` [INFO] [stdout] --> src/main.rs:44:28 [INFO] [stdout] | [INFO] [stdout] 44 | fn distance(graph: &G, start: &G::N, end: &G::N) -> u32 { 32 } [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_graph` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `start` [INFO] [stdout] --> src/main.rs:44:39 [INFO] [stdout] | [INFO] [stdout] 44 | fn distance(graph: &G, start: &G::N, end: &G::N) -> u32 { 32 } [INFO] [stdout] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_start` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `end` [INFO] [stdout] --> src/main.rs:44:53 [INFO] [stdout] | [INFO] [stdout] 44 | fn distance(graph: &G, start: &G::N, end: &G::N) -> u32 { 32 } [INFO] [stdout] | ^^^ help: if this is intentional, prefix it with an underscore: `_end` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n1` [INFO] [stdout] --> src/main.rs:21:24 [INFO] [stdout] | [INFO] [stdout] 21 | fn has_edge(&self, n1: &G, n2: &G) -> bool { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_n1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n2` [INFO] [stdout] --> src/main.rs:21:32 [INFO] [stdout] | [INFO] [stdout] 21 | fn has_edge(&self, n1: &G, n2: &G) -> bool { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_n2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/main.rs:25:21 [INFO] [stdout] | [INFO] [stdout] 25 | fn edges(&self, n: &G) -> Vec { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n1` [INFO] [stdout] --> src/main.rs:31:26 [INFO] [stdout] | [INFO] [stdout] 31 | fn i_has_edge(&self, n1: &T, n2: &T) -> bool { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_n1` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n2` [INFO] [stdout] --> src/main.rs:31:34 [INFO] [stdout] | [INFO] [stdout] 31 | fn i_has_edge(&self, n1: &T, n2: &T) -> bool { [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_n2` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `n` [INFO] [stdout] --> src/main.rs:35:23 [INFO] [stdout] | [INFO] [stdout] 35 | fn i_edges(&self, n: &T) -> Vec { [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `i_distance` [INFO] [stdout] --> src/main.rs:40:4 [INFO] [stdout] | [INFO] [stdout] 40 | fn i_distance>(graph: &G, start: &N, end: &N) -> u32 { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function is never used: `distance` [INFO] [stdout] --> src/main.rs:44:4 [INFO] [stdout] | [INFO] [stdout] 44 | fn distance(graph: &G, start: &G::N, end: &G::N) -> u32 { 32 } [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.69s [INFO] running `Command { std: "docker" "inspect" "e70457fcd70d565b41caadc1648bdb2bcb9fb6ef913fbf6c83307c1d92d43b64", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e70457fcd70d565b41caadc1648bdb2bcb9fb6ef913fbf6c83307c1d92d43b64", kill_on_drop: false }` [INFO] [stdout] e70457fcd70d565b41caadc1648bdb2bcb9fb6ef913fbf6c83307c1d92d43b64 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 364af99a9975bb46b7a79e578a41678507f0730590d4031ec5b3ee9b5a21cb01 [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" "364af99a9975bb46b7a79e578a41678507f0730590d4031ec5b3ee9b5a21cb01", kill_on_drop: false }` [INFO] [stderr] warning: unused variable: `graph` [INFO] [stderr] --> src/main.rs:40:37 [INFO] [stderr] | [INFO] [stderr] 40 | fn i_distance>(graph: &G, start: &N, end: &N) -> u32 { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_graph` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `start` [INFO] [stderr] --> src/main.rs:40:48 [INFO] [stderr] | [INFO] [stderr] 40 | fn i_distance>(graph: &G, start: &N, end: &N) -> u32 { [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_start` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `end` [INFO] [stderr] --> src/main.rs:40:59 [INFO] [stderr] | [INFO] [stderr] 40 | fn i_distance>(graph: &G, start: &N, end: &N) -> u32 { [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_end` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `graph` [INFO] [stderr] --> src/main.rs:44:28 [INFO] [stderr] | [INFO] [stderr] 44 | fn distance(graph: &G, start: &G::N, end: &G::N) -> u32 { 32 } [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_graph` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `start` [INFO] [stderr] --> src/main.rs:44:39 [INFO] [stderr] | [INFO] [stderr] 44 | fn distance(graph: &G, start: &G::N, end: &G::N) -> u32 { 32 } [INFO] [stderr] | ^^^^^ help: if this is intentional, prefix it with an underscore: `_start` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `end` [INFO] [stderr] --> src/main.rs:44:53 [INFO] [stderr] | [INFO] [stderr] 44 | fn distance(graph: &G, start: &G::N, end: &G::N) -> u32 { 32 } [INFO] [stderr] | ^^^ help: if this is intentional, prefix it with an underscore: `_end` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `n1` [INFO] [stderr] --> src/main.rs:21:24 [INFO] [stderr] | [INFO] [stderr] 21 | fn has_edge(&self, n1: &G, n2: &G) -> bool { [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_n1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `n2` [INFO] [stderr] --> src/main.rs:21:32 [INFO] [stderr] | [INFO] [stderr] 21 | fn has_edge(&self, n1: &G, n2: &G) -> bool { [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_n2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `n` [INFO] [stderr] --> src/main.rs:25:21 [INFO] [stderr] | [INFO] [stderr] 25 | fn edges(&self, n: &G) -> Vec { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `n1` [INFO] [stderr] --> src/main.rs:31:26 [INFO] [stderr] | [INFO] [stderr] 31 | fn i_has_edge(&self, n1: &T, n2: &T) -> bool { [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_n1` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `n2` [INFO] [stderr] --> src/main.rs:31:34 [INFO] [stderr] | [INFO] [stderr] 31 | fn i_has_edge(&self, n1: &T, n2: &T) -> bool { [INFO] [stderr] | ^^ help: if this is intentional, prefix it with an underscore: `_n2` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `n` [INFO] [stderr] --> src/main.rs:35:23 [INFO] [stderr] | [INFO] [stderr] 35 | fn i_edges(&self, n: &T) -> Vec { [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_n` [INFO] [stderr] [INFO] [stderr] warning: function is never used: `i_distance` [INFO] [stderr] --> src/main.rs:40:4 [INFO] [stderr] | [INFO] [stderr] 40 | fn i_distance>(graph: &G, start: &N, end: &N) -> u32 { [INFO] [stderr] | ^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function is never used: `distance` [INFO] [stderr] --> src/main.rs:44:4 [INFO] [stderr] | [INFO] [stderr] 44 | fn distance(graph: &G, start: &G::N, end: &G::N) -> u32 { 32 } [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: 14 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stdout] [INFO] [stderr] Running /opt/rustwide/target/debug/deps/rust_generics-753e3f332b1badfc [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "364af99a9975bb46b7a79e578a41678507f0730590d4031ec5b3ee9b5a21cb01", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "364af99a9975bb46b7a79e578a41678507f0730590d4031ec5b3ee9b5a21cb01", kill_on_drop: false }` [INFO] [stdout] 364af99a9975bb46b7a79e578a41678507f0730590d4031ec5b3ee9b5a21cb01