[INFO] cloning repository https://github.com/ushmz/math-algorithm-book
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ushmz/math-algorithm-book" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fushmz%2Fmath-algorithm-book", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fushmz%2Fmath-algorithm-book'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ccc74cd2e58eaafe76f058bdca28c903f35b3218
[INFO] checking ushmz/math-algorithm-book against master#85c39893a761fe4c050523278da4e7e45ab42b6e for pr-134688-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fushmz%2Fmath-algorithm-book" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ushmz/math-algorithm-book on toolchain 85c39893a761fe4c050523278da4e7e45ab42b6e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+85c39893a761fe4c050523278da4e7e45ab42b6e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ushmz/math-algorithm-book
[INFO] finished tweaking git repo https://github.com/ushmz/math-algorithm-book
[INFO] tweaked toml for git repo https://github.com/ushmz/math-algorithm-book written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ushmz/math-algorithm-book 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" "+85c39893a761fe4c050523278da4e7e45ab42b6e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+85c39893a761fe4c050523278da4e7e45ab42b6e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0ca1f023e59d2ebaff0bbb628e04aba1a144128999c317ed2ade44d5edbfe1cb
[INFO] running `Command { std: "docker" "start" "-a" "0ca1f023e59d2ebaff0bbb628e04aba1a144128999c317ed2ade44d5edbfe1cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ca1f023e59d2ebaff0bbb628e04aba1a144128999c317ed2ade44d5edbfe1cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ca1f023e59d2ebaff0bbb628e04aba1a144128999c317ed2ade44d5edbfe1cb", kill_on_drop: false }`
[INFO] [stdout] 0ca1f023e59d2ebaff0bbb628e04aba1a144128999c317ed2ade44d5edbfe1cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+85c39893a761fe4c050523278da4e7e45ab42b6e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 988f6c96e2d4765956bddea8774b440b88707160368d2cde2f092f356d5e00f4
[INFO] running `Command { std: "docker" "start" "-a" "988f6c96e2d4765956bddea8774b440b88707160368d2cde2f092f356d5e00f4", kill_on_drop: false }`
[INFO] [stderr]     Checking math-algorithm-book v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `fuctorial` is never used
[INFO] [stdout]  --> src/exercise333.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn fuctorial(n: u64) -> u64 {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `permutation` is never used
[INFO] [stdout]  --> src/exercise333.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn permutation(n: u64, r: u64) -> u64 {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `combination` is never used
[INFO] [stdout]   --> src/exercise333.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn combination(n: u64, r: u64) -> u64 {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `product_permutation` is never used
[INFO] [stdout]  --> src/exercise334.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn product_permutation(products: &Vec<u64>) -> u64 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cards_combination` is never used
[INFO] [stdout]  --> src/exercise335.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn cards_combination(cards: &Vec<u64>) -> u64 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cards_combination_exhaustive` is never used
[INFO] [stdout]  --> src/exercise336.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn cards_combination_exhaustive(cards: &Vec<u64>) -> u64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shortest_sistance` is never used
[INFO] [stdout]  --> src/exercise337.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn shortest_sistance(h: u64, w: u64) -> u64 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `fuctorial` is never used
[INFO] [stdout]  --> src/exercise333.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn fuctorial(n: u64) -> u64 {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `permutation` is never used
[INFO] [stdout]  --> src/exercise333.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn permutation(n: u64, r: u64) -> u64 {
[INFO] [stdout]   |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `combination` is never used
[INFO] [stdout]   --> src/exercise333.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn combination(n: u64, r: u64) -> u64 {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `product_permutation` is never used
[INFO] [stdout]  --> src/exercise334.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn product_permutation(products: &Vec<u64>) -> u64 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cards_combination` is never used
[INFO] [stdout]  --> src/exercise335.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn cards_combination(cards: &Vec<u64>) -> u64 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `cards_combination_exhaustive` is never used
[INFO] [stdout]  --> src/exercise336.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn cards_combination_exhaustive(cards: &Vec<u64>) -> u64 {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shortest_sistance` is never used
[INFO] [stdout]  --> src/exercise337.rs:3:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | fn shortest_sistance(h: u64, w: u64) -> u64 {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "988f6c96e2d4765956bddea8774b440b88707160368d2cde2f092f356d5e00f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "988f6c96e2d4765956bddea8774b440b88707160368d2cde2f092f356d5e00f4", kill_on_drop: false }`
[INFO] [stdout] 988f6c96e2d4765956bddea8774b440b88707160368d2cde2f092f356d5e00f4