[INFO] cloning repository https://github.com/adi-kmt/hackattic
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/adi-kmt/hackattic" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadi-kmt%2Fhackattic", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadi-kmt%2Fhackattic'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5fb392381ca2ae465b6e3599a9c7df401e056bfb
[INFO] checking adi-kmt/hackattic against try#8a0378607d6b34c242e3bfa75554871be641864b for pr-143028
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fadi-kmt%2Fhackattic" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/adi-kmt/hackattic
[INFO] finished tweaking git repo https://github.com/adi-kmt/hackattic
[INFO] tweaked toml for git repo https://github.com/adi-kmt/hackattic written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/adi-kmt/hackattic on toolchain 8a0378607d6b34c242e3bfa75554871be641864b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/adi-kmt/hackattic 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" "+8a0378607d6b34c242e3bfa75554871be641864b" "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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ac0654aa26f9161da6ba5171832ab439eeef76112d1cdb9ff1b0f7434f8b02f
[INFO] running `Command { std: "docker" "start" "-a" "9ac0654aa26f9161da6ba5171832ab439eeef76112d1cdb9ff1b0f7434f8b02f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ac0654aa26f9161da6ba5171832ab439eeef76112d1cdb9ff1b0f7434f8b02f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ac0654aa26f9161da6ba5171832ab439eeef76112d1cdb9ff1b0f7434f8b02f", kill_on_drop: false }`
[INFO] [stdout] 9ac0654aa26f9161da6ba5171832ab439eeef76112d1cdb9ff1b0f7434f8b02f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8a0378607d6b34c242e3bfa75554871be641864b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b7971305bb058d69fedf42e9ba6c46faddb161d3bb99a5ef5a152593054a1d6d
[INFO] running `Command { std: "docker" "start" "-a" "b7971305bb058d69fedf42e9ba6c46faddb161d3bb99a5ef5a152593054a1d6d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.87
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling serde v1.0.210
[INFO] [stderr]    Compiling serde_json v1.0.128
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking either v1.13.0
[INFO] [stderr]     Checking ryu v1.0.18
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking itertools v0.13.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.79
[INFO] [stderr]    Compiling serde_derive v1.0.210
[INFO] [stderr]     Checking hackattic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `line_index`
[INFO] [stdout]  --> src/sum_of_things.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 |         .map(|(line_index, line)| {
[INFO] [stdout]   |                ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_line_index`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `almost_binary` is never used
[INFO] [stdout]  --> src/almost_binary.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn almost_binary(input: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `almost_compression` is never used
[INFO] [stdout]  --> src/almost_compression.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn almost_compression(input: &str) -> String{
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `almost_compression_alt` is never used
[INFO] [stdout]   --> src/almost_compression.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn almost_compression_alt(input: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `open_parenthesis` is never used
[INFO] [stdout]  --> src/open_parenthesis.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn open_parenthesis(input: &str) -> String{
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `yes_its_fizz` is never used
[INFO] [stdout]  --> src/yes_its_fizz.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn yes_its_fizz(input: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sort_json` is never used
[INFO] [stdout]   --> src/sort_json.rs:17:4
[INFO] [stdout]    |
[INFO] [stdout] 17 | fn sort_json(input: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `a_case_of_snakes` is never used
[INFO] [stdout]  --> src/snake_case.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn a_case_of_snakes(input: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `sum_of_things` is never used
[INFO] [stdout]  --> src/sum_of_things.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn sum_of_things(input: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line_index`
[INFO] [stdout]  --> src/sum_of_things.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 |         .map(|(line_index, line)| {
[INFO] [stdout]   |                ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_line_index`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `almost_compression` is never used
[INFO] [stdout]  --> src/almost_compression.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn almost_compression(input: &str) -> String{
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.32s
[INFO] running `Command { std: "docker" "inspect" "b7971305bb058d69fedf42e9ba6c46faddb161d3bb99a5ef5a152593054a1d6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7971305bb058d69fedf42e9ba6c46faddb161d3bb99a5ef5a152593054a1d6d", kill_on_drop: false }`
[INFO] [stdout] b7971305bb058d69fedf42e9ba6c46faddb161d3bb99a5ef5a152593054a1d6d