[INFO] cloning repository https://github.com/nasa-playground/language_processing_100knocks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nasa-playground/language_processing_100knocks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnasa-playground%2Flanguage_processing_100knocks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnasa-playground%2Flanguage_processing_100knocks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de639939f18309e72fa2448982ba3d947b134c76
[INFO] checking nasa-playground/language_processing_100knocks against try#a7a572ce3edd6d476191fbfe92c9c1986e009b34 for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnasa-playground%2Flanguage_processing_100knocks" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nasa-playground/language_processing_100knocks on toolchain a7a572ce3edd6d476191fbfe92c9c1986e009b34
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nasa-playground/language_processing_100knocks
[INFO] finished tweaking git repo https://github.com/nasa-playground/language_processing_100knocks
[INFO] tweaked toml for git repo https://github.com/nasa-playground/language_processing_100knocks written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/nasa-playground/language_processing_100knocks already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4afb780cde763362a740d0cc3d4b588ce185308321fba2264e4378f52ed0820b
[INFO] running `Command { std: "docker" "start" "-a" "4afb780cde763362a740d0cc3d4b588ce185308321fba2264e4378f52ed0820b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4afb780cde763362a740d0cc3d4b588ce185308321fba2264e4378f52ed0820b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4afb780cde763362a740d0cc3d4b588ce185308321fba2264e4378f52ed0820b", kill_on_drop: false }`
[INFO] [stdout] 4afb780cde763362a740d0cc3d4b588ce185308321fba2264e4378f52ed0820b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+a7a572ce3edd6d476191fbfe92c9c1986e009b34" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03c2d91d53904e77304c1dfaed36cedd136b0a542c13e1be6a8069457150e9ef
[INFO] running `Command { std: "docker" "start" "-a" "03c2d91d53904e77304c1dfaed36cedd136b0a542c13e1be6a8069457150e9ef", kill_on_drop: false }`
[INFO] [stderr] Copying to /tmp/fixit
[INFO] [stderr] Running `cargo fix --edition`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking language_processing_100knocks v0.1.0 (/tmp/fixit)
[INFO] [stderr]    Migrating src/main.rs from 2018 edition to 2021
[INFO] [stderr]        Fixed src/chapter1.rs (2 fixes)
[INFO] [stdout] warning: function is never used: `simbolo_elementare`
[INFO] [stdout]   --> src/chapter1.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn simbolo_elementare(s: &str) -> HashMap<usize, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `reverse`
[INFO] [stdout]  --> src/chapter1.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn reverse(s: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `pick_odd`
[INFO] [stdout]  --> src/chapter1.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn pick_odd(s: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add_string`
[INFO] [stdout]   --> src/chapter1.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn add_string(s1: &str, s2: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `word_len`
[INFO] [stdout]   --> src/chapter1.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn word_len(s: &str) -> Vec<usize> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `simbolo_elementare`
[INFO] [stdout]   --> src/chapter1.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn simbolo_elementare(s: &str) -> HashMap<usize, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `n_gram`
[INFO] [stdout]   --> src/chapter1.rs:44:4
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn n_gram(s: &str, n: usize) -> Vec<String> {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `H`
[INFO] [stdout]   --> src/chapter1.rs:50:1
[INFO] [stdout]    |
[INFO] [stdout] 50 | type H = HashSet<String>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set`
[INFO] [stdout]   --> src/chapter1.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn set(s1: &str, s2: &str) -> Vec<H> {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `template`
[INFO] [stdout]   --> src/chapter1.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn template(x: &str, y: &str, z: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `chipher`
[INFO] [stdout]   --> src/chapter1.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn chipher(s: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.89s
[INFO] [stderr] Running `cargo check` to verify 2021
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking language_processing_100knocks v0.1.0 (/tmp/fixit)
[INFO] [stdout] warning: function is never used: `reverse`
[INFO] [stdout]  --> src/chapter1.rs:4:4
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn reverse(s: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `pick_odd`
[INFO] [stdout]  --> src/chapter1.rs:8:4
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn pick_odd(s: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `add_string`
[INFO] [stdout]   --> src/chapter1.rs:16:4
[INFO] [stdout]    |
[INFO] [stdout] 16 | fn add_string(s1: &str, s2: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `word_len`
[INFO] [stdout]   --> src/chapter1.rs:23:4
[INFO] [stdout]    |
[INFO] [stdout] 23 | fn word_len(s: &str) -> Vec<usize> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `simbolo_elementare`
[INFO] [stdout]   --> src/chapter1.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn simbolo_elementare(s: &str) -> HashMap<usize, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `n_gram`
[INFO] [stdout]   --> src/chapter1.rs:44:4
[INFO] [stdout]    |
[INFO] [stdout] 44 | fn n_gram(s: &str, n: usize) -> Vec<String> {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias is never used: `H`
[INFO] [stdout]   --> src/chapter1.rs:50:1
[INFO] [stdout]    |
[INFO] [stdout] 50 | type H = HashSet<String>;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set`
[INFO] [stdout]   --> src/chapter1.rs:51:4
[INFO] [stdout]    |
[INFO] [stdout] 51 | fn set(s1: &str, s2: &str) -> Vec<H> {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `template`
[INFO] [stdout]   --> src/chapter1.rs:58:4
[INFO] [stdout]    |
[INFO] [stdout] 58 | fn template(x: &str, y: &str, z: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `chipher`
[INFO] [stdout]   --> src/chapter1.rs:62:4
[INFO] [stdout]    |
[INFO] [stdout] 62 | fn chipher(s: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `simbolo_elementare`
[INFO] [stdout]   --> src/chapter1.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn simbolo_elementare(s: &str) -> HashMap<usize, String> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.31s
[INFO] running `Command { std: "docker" "inspect" "03c2d91d53904e77304c1dfaed36cedd136b0a542c13e1be6a8069457150e9ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03c2d91d53904e77304c1dfaed36cedd136b0a542c13e1be6a8069457150e9ef", kill_on_drop: false }`
[INFO] [stdout] 03c2d91d53904e77304c1dfaed36cedd136b0a542c13e1be6a8069457150e9ef