[INFO] cloning 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" "clone" "--bare" "https://github.com/rummolprod999/rust_generics" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frummolprod999%2Frust_generics", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frummolprod999%2Frust_generics'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b8b176b1f85a90ade432385d8429cf05ed59c6a9
[INFO] checking rummolprod999/rust_generics against try#18c1d185ac7a6a3bf399296b35e4b2736809a756 for pr-146972
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frummolprod999%2Frust_generics" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[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-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/rummolprod999/rust_generics on toolchain 18c1d185ac7a6a3bf399296b35e4b2736809a756
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/rummolprod999/rust_generics 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" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e762321287373b20184ed0a1196863ff14aae0292dc9476faa33283fb79404e2
[INFO] running `Command { std: "docker" "start" "-a" "e762321287373b20184ed0a1196863ff14aae0292dc9476faa33283fb79404e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e762321287373b20184ed0a1196863ff14aae0292dc9476faa33283fb79404e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e762321287373b20184ed0a1196863ff14aae0292dc9476faa33283fb79404e2", kill_on_drop: false }`
[INFO] [stdout] e762321287373b20184ed0a1196863ff14aae0292dc9476faa33283fb79404e2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+18c1d185ac7a6a3bf399296b35e4b2736809a756" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3f496916cca804bd7e5a4760c273f91dcdc5e8c377abe27f0d5f9c3c7257c77f
[INFO] running `Command { std: "docker" "start" "-a" "3f496916cca804bd7e5a4760c273f91dcdc5e8c377abe27f0d5f9c3c7257c77f", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_generics v0.1.0 (/opt/rustwide/workdir)
[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]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[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<L> {
[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<G> {
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `graph`
[INFO] [stdout]   --> src/main.rs:40:37
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn i_distance<N, E, G: Graph<N, E>>(graph: &G, start: &N, end: &N) -> u32 {
[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:40:48
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn i_distance<N, E, G: Graph<N, E>>(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<N, E, G: Graph<N, E>>(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<G: GraphAssoc>(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<G: GraphAssoc>(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<G: GraphAssoc>(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: method `i_edges` is never used
[INFO] [stdout]  --> src/main.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait Graph<N, E> {
[INFO] [stdout]   |       ----- method in this trait
[INFO] [stdout] 2 |     fn i_has_edge(&self, _: &N, _: &N) -> bool;
[INFO] [stdout] 3 |     fn i_edges(&self, _: &N) -> Vec<E>;
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `edges` is never used
[INFO] [stdout]   --> src/main.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout]  7 | trait GraphAssoc {
[INFO] [stdout]    |       ---------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 12 |     fn edges(&self, _: &Self::N) -> Vec<Self::E>;
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `i_distance` is never used
[INFO] [stdout]   --> src/main.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn i_distance<N, E, G: Graph<N, E>>(graph: &G, start: &N, end: &N) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `distance` is never used
[INFO] [stdout]   --> src/main.rs:44:4
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn distance<G: GraphAssoc>(graph: &G, start: &G::N, end: &G::N) -> u32 { 32 }
[INFO] [stdout]    |    ^^^^^^^^
[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]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[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<L> {
[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<G> {
[INFO] [stdout]    |                       ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `graph`
[INFO] [stdout]   --> src/main.rs:40:37
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn i_distance<N, E, G: Graph<N, E>>(graph: &G, start: &N, end: &N) -> u32 {
[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:40:48
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn i_distance<N, E, G: Graph<N, E>>(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<N, E, G: Graph<N, E>>(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<G: GraphAssoc>(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<G: GraphAssoc>(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<G: GraphAssoc>(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: method `i_edges` is never used
[INFO] [stdout]  --> src/main.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | trait Graph<N, E> {
[INFO] [stdout]   |       ----- method in this trait
[INFO] [stdout] 2 |     fn i_has_edge(&self, _: &N, _: &N) -> bool;
[INFO] [stdout] 3 |     fn i_edges(&self, _: &N) -> Vec<E>;
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `edges` is never used
[INFO] [stdout]   --> src/main.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout]  7 | trait GraphAssoc {
[INFO] [stdout]    |       ---------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 12 |     fn edges(&self, _: &Self::N) -> Vec<Self::E>;
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `i_distance` is never used
[INFO] [stdout]   --> src/main.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn i_distance<N, E, G: Graph<N, E>>(graph: &G, start: &N, end: &N) -> u32 {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `distance` is never used
[INFO] [stdout]   --> src/main.rs:44:4
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn distance<G: GraphAssoc>(graph: &G, start: &G::N, end: &G::N) -> u32 { 32 }
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "3f496916cca804bd7e5a4760c273f91dcdc5e8c377abe27f0d5f9c3c7257c77f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3f496916cca804bd7e5a4760c273f91dcdc5e8c377abe27f0d5f9c3c7257c77f", kill_on_drop: false }`
[INFO] [stdout] 3f496916cca804bd7e5a4760c273f91dcdc5e8c377abe27f0d5f9c3c7257c77f
