[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] testing nasa-playground/language_processing_100knocks against 1.49.0 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnasa-playground%2Flanguage_processing_100knocks" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nasa-playground/language_processing_100knocks on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", 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-3/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" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2bc455afa71b9d83718637458582de430cd96cb0015808d09c705affc1a389ad
[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" "2bc455afa71b9d83718637458582de430cd96cb0015808d09c705affc1a389ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bc455afa71b9d83718637458582de430cd96cb0015808d09c705affc1a389ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bc455afa71b9d83718637458582de430cd96cb0015808d09c705affc1a389ad", kill_on_drop: false }`
[INFO] [stdout] 2bc455afa71b9d83718637458582de430cd96cb0015808d09c705affc1a389ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9314bd81c0d372f158e6f7e81fab4a645552b7a39be1da3c8c65dadb433f0902
[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" "9314bd81c0d372f158e6f7e81fab4a645552b7a39be1da3c8c65dadb433f0902", kill_on_drop: false }`
[INFO] [stderr]    Compiling language_processing_100knocks v0.1.0 (/opt/rustwide/workdir)
[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 0.65s
[INFO] running `Command { std: "docker" "inspect" "9314bd81c0d372f158e6f7e81fab4a645552b7a39be1da3c8c65dadb433f0902", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9314bd81c0d372f158e6f7e81fab4a645552b7a39be1da3c8c65dadb433f0902", kill_on_drop: false }`
[INFO] [stdout] 9314bd81c0d372f158e6f7e81fab4a645552b7a39be1da3c8c65dadb433f0902
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7772b603e21e1d466ef53596bac0a8ede3389bf89b363e412ae9399035bad011
[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" "7772b603e21e1d466ef53596bac0a8ede3389bf89b363e412ae9399035bad011", kill_on_drop: false }`
[INFO] [stderr]    Compiling language_processing_100knocks v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/chapter1.rs:102:9
[INFO] [stdout]     |
[INFO] [stdout] 102 |     let s = "Hi He Lied Because Boron Could Not Oxidize Fluorine. New Nations Might Also Sign Peace Security Clause. Arthur King Can.";
[INFO] [stdout]     |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `sets`
[INFO] [stdout]    --> src/chapter1.rs:123:9
[INFO] [stdout]     |
[INFO] [stdout] 123 |     let sets = set("paraparaparadise", "paragraph");
[INFO] [stdout]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_sets`
[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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.67s
[INFO] running `Command { std: "docker" "inspect" "7772b603e21e1d466ef53596bac0a8ede3389bf89b363e412ae9399035bad011", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7772b603e21e1d466ef53596bac0a8ede3389bf89b363e412ae9399035bad011", kill_on_drop: false }`
[INFO] [stdout] 7772b603e21e1d466ef53596bac0a8ede3389bf89b363e412ae9399035bad011
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 417db648f26f53f8223676291b612ada77cf2189900092473fcdd658bd49c4c9
[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" "417db648f26f53f8223676291b612ada77cf2189900092473fcdd658bd49c4c9", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `s`
[INFO] [stderr]    --> src/chapter1.rs:102:9
[INFO] [stderr]     |
[INFO] [stderr] 102 |     let s = "Hi He Lied Because Boron Could Not Oxidize Fluorine. New Nations Might Also Sign Peace Security Clause. Arthur King Can.";
[INFO] [stderr]     |         ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `sets`
[INFO] [stderr]    --> src/chapter1.rs:123:9
[INFO] [stderr]     |
[INFO] [stderr] 123 |     let sets = set("paraparaparadise", "paragraph");
[INFO] [stderr]     |         ^^^^ help: if this is intentional, prefix it with an underscore: `_sets`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `simbolo_elementare`
[INFO] [stderr]   --> src/chapter1.rs:27:4
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn simbolo_elementare(s: &str) -> HashMap<usize, String> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/language_processing_100knocks-40647502ed39b5e5
[INFO] [stdout] running 9 tests
[INFO] [stdout] test chapter1::n_gram_test ... ok
[INFO] [stdout] test chapter1::pick_odd_test ... ok
[INFO] [stdout] test chapter1::simbolo_elementare_test ... ok
[INFO] [stdout] test chapter1::reverse_test ... ok
[INFO] [stdout] test chapter1::add_string_test ... ok
[INFO] [stdout] test chapter1::set_test ... ok
[INFO] [stdout] test chapter1::template_test ... ok
[INFO] [stdout] test chapter1::word_len_test ... ok
[INFO] [stdout] test chapter1::chipher_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "417db648f26f53f8223676291b612ada77cf2189900092473fcdd658bd49c4c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "417db648f26f53f8223676291b612ada77cf2189900092473fcdd658bd49c4c9", kill_on_drop: false }`
[INFO] [stdout] 417db648f26f53f8223676291b612ada77cf2189900092473fcdd658bd49c4c9