[INFO] cloning repository https://github.com/itanor/exercises-for-programmers-57-challenges
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itanor/exercises-for-programmers-57-challenges" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges'...
[INFO] [stderr] fatal: write error: No space left on device
[INFO] [stderr] fatal: fetch-pack: invalid index-pack output
[WARN] Retrying crate fetch in 3 seconds (attempt 1)
[INFO] cloning repository https://github.com/itanor/exercises-for-programmers-57-challenges
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itanor/exercises-for-programmers-57-challenges" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 2)
[INFO] cloning repository https://github.com/itanor/exercises-for-programmers-57-challenges
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itanor/exercises-for-programmers-57-challenges" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges'...
[INFO] [stderr] error: copy-fd: write returned: No space left on device
[INFO] [stderr] fatal: cannot copy '/usr/share/git-core/templates/hooks/pre-receive.sample' to '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges/hooks/pre-receive.sample': No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 3)
[INFO] cloning repository https://github.com/itanor/exercises-for-programmers-57-challenges
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itanor/exercises-for-programmers-57-challenges" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges'...
[INFO] [stderr] error: copy-fd: write returned: No space left on device
[INFO] [stderr] fatal: cannot copy '/usr/share/git-core/templates/hooks/pre-merge-commit.sample' to '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges/hooks/pre-merge-commit.sample': No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 4)
[INFO] cloning repository https://github.com/itanor/exercises-for-programmers-57-challenges
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itanor/exercises-for-programmers-57-challenges" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 5)
[INFO] cloning repository https://github.com/itanor/exercises-for-programmers-57-challenges
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itanor/exercises-for-programmers-57-challenges" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 6)
[INFO] cloning repository https://github.com/itanor/exercises-for-programmers-57-challenges
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itanor/exercises-for-programmers-57-challenges" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 7)
[INFO] cloning repository https://github.com/itanor/exercises-for-programmers-57-challenges
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itanor/exercises-for-programmers-57-challenges" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 8)
[INFO] cloning repository https://github.com/itanor/exercises-for-programmers-57-challenges
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itanor/exercises-for-programmers-57-challenges" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges'...
[INFO] [stderr] /workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges: No space left on device
[WARN] Retrying crate fetch in 3 seconds (attempt 9)
[INFO] cloning repository https://github.com/itanor/exercises-for-programmers-57-challenges
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/itanor/exercises-for-programmers-57-challenges" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7b33f1251b0290b2c80b02cc0124bdfadc38ec8a
[INFO] checking itanor/exercises-for-programmers-57-challenges against master#f7b43542838f0a4a6cfdb17fbeadf45002042a77 for pr-138499
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fitanor%2Fexercises-for-programmers-57-challenges" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/itanor/exercises-for-programmers-57-challenges on toolchain f7b43542838f0a4a6cfdb17fbeadf45002042a77
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/itanor/exercises-for-programmers-57-challenges
[INFO] finished tweaking git repo https://github.com/itanor/exercises-for-programmers-57-challenges
[INFO] tweaked toml for git repo https://github.com/itanor/exercises-for-programmers-57-challenges written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/itanor/exercises-for-programmers-57-challenges 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" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9ead1636ce7e0452d729593ba665571f48945189a643ead70d42705b1806a544
[INFO] running `Command { std: "docker" "start" "-a" "9ead1636ce7e0452d729593ba665571f48945189a643ead70d42705b1806a544", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9ead1636ce7e0452d729593ba665571f48945189a643ead70d42705b1806a544", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ead1636ce7e0452d729593ba665571f48945189a643ead70d42705b1806a544", kill_on_drop: false }`
[INFO] [stdout] 9ead1636ce7e0452d729593ba665571f48945189a643ead70d42705b1806a544
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+f7b43542838f0a4a6cfdb17fbeadf45002042a77" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f49d448594db66c3d0c9b075fde4c2f7bedb142558cfa0b15727bf2dbf159dc
[INFO] running `Command { std: "docker" "start" "-a" "5f49d448594db66c3d0c9b075fde4c2f7bedb142558cfa0b15727bf2dbf159dc", kill_on_drop: false }`
[INFO] [stderr]     Checking exercises-for-programmers-57-challenges v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `what_is_the_input` is never used
[INFO] [stdout]  --> src/chars/characters.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn what_is_the_input() { 
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `what_is_the_input` is never used
[INFO] [stdout]  --> src/chars/characters.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn what_is_the_input() { 
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_characters` is never used
[INFO] [stdout]   --> src/chars/characters.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn count_characters(input: &str) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `outputs_the_input` is never used
[INFO] [stdout]   --> src/chars/characters.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn outputs_the_input(input: &str, total: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_while_input_has_more_than_zero_chars` is never used
[INFO] [stdout]   --> src/chars/characters.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn read_while_input_has_more_than_zero_chars() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `count_characters` is never used
[INFO] [stdout]   --> src/chars/characters.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn count_characters(input: &str) -> usize {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `outputs_the_input` is never used
[INFO] [stdout]   --> src/chars/characters.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub fn outputs_the_input(input: &str, total: usize) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_while_input_has_more_than_zero_chars` is never used
[INFO] [stdout]   --> src/chars/characters.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub fn read_while_input_has_more_than_zero_chars() {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "5f49d448594db66c3d0c9b075fde4c2f7bedb142558cfa0b15727bf2dbf159dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f49d448594db66c3d0c9b075fde4c2f7bedb142558cfa0b15727bf2dbf159dc", kill_on_drop: false }`
[INFO] [stdout] 5f49d448594db66c3d0c9b075fde4c2f7bedb142558cfa0b15727bf2dbf159dc