[INFO] cloning repository https://github.com/godhar/rust_exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/godhar/rust_exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgodhar%2Frust_exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgodhar%2Frust_exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0bb7e1fbab674b4ba200d5d4271b2088e29bf277
[INFO] testing godhar/rust_exercises against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgodhar%2Frust_exercises" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/godhar/rust_exercises on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/godhar/rust_exercises
[INFO] finished tweaking git repo https://github.com/godhar/rust_exercises
[INFO] tweaked toml for git repo https://github.com/godhar/rust_exercises written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/godhar/rust_exercises already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", 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] 79738d121d73b504a6fc7099f4c8d936faa6b8026f69cacc754d0864ebd3de5c
[INFO] running `Command { std: "docker" "start" "-a" "79738d121d73b504a6fc7099f4c8d936faa6b8026f69cacc754d0864ebd3de5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79738d121d73b504a6fc7099f4c8d936faa6b8026f69cacc754d0864ebd3de5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79738d121d73b504a6fc7099f4c8d936faa6b8026f69cacc754d0864ebd3de5c", kill_on_drop: false }`
[INFO] [stdout] 79738d121d73b504a6fc7099f4c8d936faa6b8026f69cacc754d0864ebd3de5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b1997b024766f83890941c4524b2b80f671c42db8ab0be35e9348264675b8fbf
[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" "b1997b024766f83890941c4524b2b80f671c42db8ab0be35e9348264675b8fbf", kill_on_drop: false }`
[INFO] [stderr]    Compiling start_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `a`, `b`
[INFO] [stdout]  --> src/tests/a.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::solutions::{a, b};
[INFO] [stdout]   |                        ^  ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::tests::samples`
[INFO] [stdout]  --> src/tests/a.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::tests::samples;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `batman_poor`, `batman`, `catman`, `catwoman_poor`, `deadshot`, `scandal`
[INFO] [stdout]  --> src/tests/a.rs:5:29
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::tests::samples::{batman, batman_poor, catman, catwoman_poor, deadshot, scandal};
[INFO] [stdout]   |                             ^^^^^^  ^^^^^^^^^^^  ^^^^^^  ^^^^^^^^^^^^^  ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `catman`
[INFO] [stdout]  --> src/tests/samples.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(in crate::tests) fn catman<'a>() -> Super<'a> {
[INFO] [stdout]   |                         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `deadshot`
[INFO] [stdout]   --> src/tests/samples.rs:12:25
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub(in crate::tests) fn deadshot<'a>() -> Super<'a> {
[INFO] [stdout]    |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `scandal`
[INFO] [stdout]   --> src/tests/samples.rs:21:25
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub(in crate::tests) fn scandal<'a>() -> Super<'a> {
[INFO] [stdout]    |                         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `batman`
[INFO] [stdout]   --> src/tests/samples.rs:30:25
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub(in crate::tests) fn batman<'a>() -> Super<'a> {
[INFO] [stdout]    |                         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rag_doll`
[INFO] [stdout]   --> src/tests/samples.rs:39:25
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub(in crate::tests) fn rag_doll<'a>() -> Super<'a> {
[INFO] [stdout]    |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `catwoman_poor`
[INFO] [stdout]   --> src/tests/samples.rs:48:25
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub(in crate::tests) fn catwoman_poor<'a>() -> Super<'a> {
[INFO] [stdout]    |                         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `batman_poor`
[INFO] [stdout]   --> src/tests/samples.rs:57:25
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub(in crate::tests) fn batman_poor<'a>() -> Super<'a> {
[INFO] [stdout]    |                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `justice_league`
[INFO] [stdout]   --> src/tests/samples.rs:66:25
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub(in crate::tests) fn justice_league<'a>() -> Group<'a> {
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sinister_five`
[INFO] [stdout]   --> src/tests/samples.rs:73:25
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub(in crate::tests) fn sinister_five<'a>() -> Group<'a> {
[INFO] [stdout]    |                         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.44s
[INFO] running `Command { std: "docker" "inspect" "b1997b024766f83890941c4524b2b80f671c42db8ab0be35e9348264675b8fbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b1997b024766f83890941c4524b2b80f671c42db8ab0be35e9348264675b8fbf", kill_on_drop: false }`
[INFO] [stdout] b1997b024766f83890941c4524b2b80f671c42db8ab0be35e9348264675b8fbf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cedd1eba54725d7022eed6b9a34a733e32d558600ffa04e42de9204cc3c5decc
[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" "cedd1eba54725d7022eed6b9a34a733e32d558600ffa04e42de9204cc3c5decc", kill_on_drop: false }`
[INFO] [stdout] warning: unused imports: `a`, `b`
[INFO] [stdout]  --> src/tests/a.rs:3:24
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::solutions::{a, b};
[INFO] [stdout]   |                        ^  ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::tests::samples`
[INFO] [stdout]  --> src/tests/a.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::tests::samples;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `batman_poor`, `batman`, `catman`, `catwoman_poor`, `deadshot`, `scandal`
[INFO] [stdout]  --> src/tests/a.rs:5:29
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::tests::samples::{batman, batman_poor, catman, catwoman_poor, deadshot, scandal};
[INFO] [stdout]   |                             ^^^^^^  ^^^^^^^^^^^  ^^^^^^  ^^^^^^^^^^^^^  ^^^^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `catman`
[INFO] [stdout]  --> src/tests/samples.rs:3:25
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub(in crate::tests) fn catman<'a>() -> Super<'a> {
[INFO] [stdout]   |                         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `deadshot`
[INFO] [stdout]   --> src/tests/samples.rs:12:25
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub(in crate::tests) fn deadshot<'a>() -> Super<'a> {
[INFO] [stdout]    |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `scandal`
[INFO] [stdout]   --> src/tests/samples.rs:21:25
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub(in crate::tests) fn scandal<'a>() -> Super<'a> {
[INFO] [stdout]    |                         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `batman`
[INFO] [stdout]   --> src/tests/samples.rs:30:25
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub(in crate::tests) fn batman<'a>() -> Super<'a> {
[INFO] [stdout]    |                         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `rag_doll`
[INFO] [stdout]   --> src/tests/samples.rs:39:25
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub(in crate::tests) fn rag_doll<'a>() -> Super<'a> {
[INFO] [stdout]    |                         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `catwoman_poor`
[INFO] [stdout]   --> src/tests/samples.rs:48:25
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub(in crate::tests) fn catwoman_poor<'a>() -> Super<'a> {
[INFO] [stdout]    |                         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `batman_poor`
[INFO] [stdout]   --> src/tests/samples.rs:57:25
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub(in crate::tests) fn batman_poor<'a>() -> Super<'a> {
[INFO] [stdout]    |                         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `justice_league`
[INFO] [stdout]   --> src/tests/samples.rs:66:25
[INFO] [stdout]    |
[INFO] [stdout] 66 | pub(in crate::tests) fn justice_league<'a>() -> Group<'a> {
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `sinister_five`
[INFO] [stdout]   --> src/tests/samples.rs:73:25
[INFO] [stdout]    |
[INFO] [stdout] 73 | pub(in crate::tests) fn sinister_five<'a>() -> Group<'a> {
[INFO] [stdout]    |                         ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling start_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `batman`
[INFO] [stdout]  --> src/tests/a.rs:5:29
[INFO] [stdout]   |
[INFO] [stdout] 5 | use crate::tests::samples::{batman, batman_poor, catman, catwoman_poor, deadshot, scandal};
[INFO] [stdout]   |                             ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.92s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/start_rust-46b29e150e8eb392)
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/start_rust-d4daf5b1754a12df)
[INFO] running `Command { std: "docker" "inspect" "cedd1eba54725d7022eed6b9a34a733e32d558600ffa04e42de9204cc3c5decc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cedd1eba54725d7022eed6b9a34a733e32d558600ffa04e42de9204cc3c5decc", kill_on_drop: false }`
[INFO] [stdout] cedd1eba54725d7022eed6b9a34a733e32d558600ffa04e42de9204cc3c5decc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", 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] f52a12bcddf2ad3cbcd1522a4d7c811030f22ee41ae33306f3231703aa627494
[INFO] running `Command { std: "docker" "start" "-a" "f52a12bcddf2ad3cbcd1522a4d7c811030f22ee41ae33306f3231703aa627494", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `a`, `b`
[INFO] [stderr]  --> src/tests/a.rs:3:24
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::solutions::{a, b};
[INFO] [stderr]   |                        ^  ^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::tests::samples`
[INFO] [stderr]  --> src/tests/a.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::tests::samples;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `batman_poor`, `batman`, `catman`, `catwoman_poor`, `deadshot`, `scandal`
[INFO] [stderr]  --> src/tests/a.rs:5:29
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::tests::samples::{batman, batman_poor, catman, catwoman_poor, deadshot, scandal};
[INFO] [stderr]   |                             ^^^^^^  ^^^^^^^^^^^  ^^^^^^  ^^^^^^^^^^^^^  ^^^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `catman`
[INFO] [stderr]  --> src/tests/samples.rs:3:25
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub(in crate::tests) fn catman<'a>() -> Super<'a> {
[INFO] [stderr]   |                         ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `deadshot`
[INFO] [stderr]   --> src/tests/samples.rs:12:25
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub(in crate::tests) fn deadshot<'a>() -> Super<'a> {
[INFO] [stderr]    |                         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `scandal`
[INFO] [stderr]   --> src/tests/samples.rs:21:25
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub(in crate::tests) fn scandal<'a>() -> Super<'a> {
[INFO] [stderr]    |                         ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `batman`
[INFO] [stderr]   --> src/tests/samples.rs:30:25
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub(in crate::tests) fn batman<'a>() -> Super<'a> {
[INFO] [stderr]    |                         ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `rag_doll`
[INFO] [stderr]   --> src/tests/samples.rs:39:25
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub(in crate::tests) fn rag_doll<'a>() -> Super<'a> {
[INFO] [stderr]    |                         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `catwoman_poor`
[INFO] [stderr]   --> src/tests/samples.rs:48:25
[INFO] [stderr]    |
[INFO] [stderr] 48 | pub(in crate::tests) fn catwoman_poor<'a>() -> Super<'a> {
[INFO] [stderr]    |                         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `batman_poor`
[INFO] [stderr]   --> src/tests/samples.rs:57:25
[INFO] [stderr]    |
[INFO] [stderr] 57 | pub(in crate::tests) fn batman_poor<'a>() -> Super<'a> {
[INFO] [stderr]    |                         ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `justice_league`
[INFO] [stderr]   --> src/tests/samples.rs:66:25
[INFO] [stderr]    |
[INFO] [stderr] 66 | pub(in crate::tests) fn justice_league<'a>() -> Group<'a> {
[INFO] [stderr]    |                         ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `sinister_five`
[INFO] [stderr]   --> src/tests/samples.rs:73:25
[INFO] [stderr]    |
[INFO] [stderr] 73 | pub(in crate::tests) fn sinister_five<'a>() -> Group<'a> {
[INFO] [stderr]    |                         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `start_rust` (lib) generated 12 warnings
[INFO] [stderr] warning: unused import: `batman`
[INFO] [stderr]  --> src/tests/a.rs:5:29
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::tests::samples::{batman, batman_poor, catman, catwoman_poor, deadshot, scandal};
[INFO] [stderr]   |                             ^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `start_rust` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/start_rust-46b29e150e8eb392)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test tests::a::should_return_group_if_groups_has_only_one ... ok
[INFO] [stdout] test tests::a::should_return_none_if_groups_is_empty ... ok
[INFO] [stderr] 
[INFO] [stderr] thread 'tests::a::find_super_powers_with_sidekick' has overflowed its stack
[INFO] [stderr] fatal runtime error: stack overflow
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/start_rust-46b29e150e8eb392` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "f52a12bcddf2ad3cbcd1522a4d7c811030f22ee41ae33306f3231703aa627494", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f52a12bcddf2ad3cbcd1522a4d7c811030f22ee41ae33306f3231703aa627494", kill_on_drop: false }`
[INFO] [stdout] f52a12bcddf2ad3cbcd1522a4d7c811030f22ee41ae33306f3231703aa627494