[INFO] updating cached repository https://github.com/rummolprod999/rust_generics
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b8b176b1f85a90ade432385d8429cf05ed59c6a9
[INFO] testing rummolprod999/rust_generics against beta-2019-09-28 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Frummolprod999%2Frust_generics" "work/builds/worker-3/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rummolprod999/rust_generics on toolchain beta-2019-09-28
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "read-manifest" "--manifest-path" "Cargo.toml"`
[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 work/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/rummolprod999/rust_generics already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+beta-2019-09-28" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "build" "--frozen"`
[INFO] [stdout] f9ef703a19e19b73ad1652afe0f759280a02382fafe5f29274a411bce26b3e45
[INFO] running `"docker" "start" "-a" "f9ef703a19e19b73ad1652afe0f759280a02382fafe5f29274a411bce26b3e45"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust_generics v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `graph`
[INFO] [stderr]   --> src/main.rs:40:37
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn i_distance<N, E, G: Graph<N, E>>(graph: &G, start: &N, end: &N) -> u32 {
[INFO] [stderr]    |                                     ^^^^^ help: consider prefixing 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<N, E, G: Graph<N, E>>(graph: &G, start: &N, end: &N) -> u32 {
[INFO] [stderr]    |                                                ^^^^^ help: consider prefixing 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<N, E, G: Graph<N, E>>(graph: &G, start: &N, end: &N) -> u32 {
[INFO] [stderr]    |                                                           ^^^ help: consider prefixing 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<G: GraphAssoc>(graph: &G, start: &G::N, end: &G::N) -> u32 { 32 }
[INFO] [stderr]    |                            ^^^^^ help: consider prefixing 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<G: GraphAssoc>(graph: &G, start: &G::N, end: &G::N) -> u32 { 32 }
[INFO] [stderr]    |                                       ^^^^^ help: consider prefixing 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<G: GraphAssoc>(graph: &G, start: &G::N, end: &G::N) -> u32 { 32 }
[INFO] [stderr]    |                                                     ^^^ help: consider prefixing 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: consider prefixing 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: consider prefixing 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<L> {
[INFO] [stderr]    |                     ^ help: consider prefixing 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: consider prefixing 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: consider prefixing 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<G> {
[INFO] [stderr]    |                       ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `i_distance`
[INFO] [stderr]   --> src/main.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn i_distance<N, E, G: Graph<N, E>>(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:44:1
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn distance<G: GraphAssoc>(graph: &G, start: &G::N, end: &G::N) -> u32 { 32 }
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `"docker" "inspect" "f9ef703a19e19b73ad1652afe0f759280a02382fafe5f29274a411bce26b3e45"`
[INFO] running `"docker" "rm" "-f" "f9ef703a19e19b73ad1652afe0f759280a02382fafe5f29274a411bce26b3e45"`
[INFO] [stdout] f9ef703a19e19b73ad1652afe0f759280a02382fafe5f29274a411bce26b3e45
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen" "--no-run"`
[INFO] [stdout] b401bdde041ee3531c0d019df7d7925bca00b6d0f763531513de87957442e824
[INFO] running `"docker" "start" "-a" "b401bdde041ee3531c0d019df7d7925bca00b6d0f763531513de87957442e824"`
[INFO] [stderr]    Compiling rust_generics v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused variable: `graph`
[INFO] [stderr]   --> src/main.rs:40:37
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn i_distance<N, E, G: Graph<N, E>>(graph: &G, start: &N, end: &N) -> u32 {
[INFO] [stderr]    |                                     ^^^^^ help: consider prefixing 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<N, E, G: Graph<N, E>>(graph: &G, start: &N, end: &N) -> u32 {
[INFO] [stderr]    |                                                ^^^^^ help: consider prefixing 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<N, E, G: Graph<N, E>>(graph: &G, start: &N, end: &N) -> u32 {
[INFO] [stderr]    |                                                           ^^^ help: consider prefixing 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<G: GraphAssoc>(graph: &G, start: &G::N, end: &G::N) -> u32 { 32 }
[INFO] [stderr]    |                            ^^^^^ help: consider prefixing 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<G: GraphAssoc>(graph: &G, start: &G::N, end: &G::N) -> u32 { 32 }
[INFO] [stderr]    |                                       ^^^^^ help: consider prefixing 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<G: GraphAssoc>(graph: &G, start: &G::N, end: &G::N) -> u32 { 32 }
[INFO] [stderr]    |                                                     ^^^ help: consider prefixing 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: consider prefixing 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: consider prefixing 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<L> {
[INFO] [stderr]    |                     ^ help: consider prefixing 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: consider prefixing 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: consider prefixing 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<G> {
[INFO] [stderr]    |                       ^ help: consider prefixing with an underscore: `_n`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `i_distance`
[INFO] [stderr]   --> src/main.rs:40:1
[INFO] [stderr]    |
[INFO] [stderr] 40 | fn i_distance<N, E, G: Graph<N, E>>(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:44:1
[INFO] [stderr]    |
[INFO] [stderr] 44 | fn distance<G: GraphAssoc>(graph: &G, start: &G::N, end: &G::N) -> u32 { 32 }
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
[INFO] running `"docker" "inspect" "b401bdde041ee3531c0d019df7d7925bca00b6d0f763531513de87957442e824"`
[INFO] running `"docker" "rm" "-f" "b401bdde041ee3531c0d019df7d7925bca00b6d0f763531513de87957442e824"`
[INFO] [stdout] b401bdde041ee3531c0d019df7d7925bca00b6d0f763531513de87957442e824
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2019-09-28" "test" "--frozen"`
[INFO] [stdout] 613f4d654bbe13f18e55aef0889644bcba89320f625d05b8a3116af0e497bb4d
[INFO] running `"docker" "start" "-a" "613f4d654bbe13f18e55aef0889644bcba89320f625d05b8a3116af0e497bb4d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rust_generics-b59f9acd39fcbfe0
[INFO] [stdout] 
[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 `"docker" "inspect" "613f4d654bbe13f18e55aef0889644bcba89320f625d05b8a3116af0e497bb4d"`
[INFO] running `"docker" "rm" "-f" "613f4d654bbe13f18e55aef0889644bcba89320f625d05b8a3116af0e497bb4d"`
[INFO] [stdout] 613f4d654bbe13f18e55aef0889644bcba89320f625d05b8a3116af0e497bb4d