[INFO] cloning repository https://github.com/mobile32/rust_experiments
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mobile32/rust_experiments" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmobile32%2Frust_experiments", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmobile32%2Frust_experiments'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2f2935f316844927adc984a1172ed2439d2c1574
[INFO] testing mobile32/rust_experiments against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmobile32%2Frust_experiments" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mobile32/rust_experiments on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mobile32/rust_experiments
[INFO] finished tweaking git repo https://github.com/mobile32/rust_experiments
[INFO] tweaked toml for git repo https://github.com/mobile32/rust_experiments written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/mobile32/rust_experiments already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 398c99e821c4d8dc73e3d93cb776a42595fcfcbdc60363e6132b1d5cca20e376
[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" "398c99e821c4d8dc73e3d93cb776a42595fcfcbdc60363e6132b1d5cca20e376", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "398c99e821c4d8dc73e3d93cb776a42595fcfcbdc60363e6132b1d5cca20e376", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "398c99e821c4d8dc73e3d93cb776a42595fcfcbdc60363e6132b1d5cca20e376", kill_on_drop: false }`
[INFO] [stdout] 398c99e821c4d8dc73e3d93cb776a42595fcfcbdc60363e6132b1d5cca20e376
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6f3b08ffa0d7f84ecdcf70d78a179cdc3a7e10d35ee65bcf1546386f393524dc
[INFO] running `Command { std: "docker" "start" "-a" "6f3b08ffa0d7f84ecdcf70d78a179cdc3a7e10d35ee65bcf1546386f393524dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_experiments v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `Stats`
[INFO] [stdout]  --> src/calculus.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Stats {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create`
[INFO] [stdout]   --> src/calculus.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn create(numbers: Vec<i32>) -> Stats {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `show_results`
[INFO] [stdout]   --> src/calculus.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn show_results(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mean`
[INFO] [stdout]   --> src/calculus.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn mean(&self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `median`
[INFO] [stdout]   --> src/calculus.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn median(&self) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mode`
[INFO] [stdout]   --> src/calculus.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn mode(&self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `collect_employees`
[INFO] [stdout]  --> src/employees.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn collect_employees() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `convert_to_pig_latin`
[INFO] [stdout]  --> src/pig_latin.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn convert_to_pig_latin(word: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.98s
[INFO] running `Command { std: "docker" "inspect" "6f3b08ffa0d7f84ecdcf70d78a179cdc3a7e10d35ee65bcf1546386f393524dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f3b08ffa0d7f84ecdcf70d78a179cdc3a7e10d35ee65bcf1546386f393524dc", kill_on_drop: false }`
[INFO] [stdout] 6f3b08ffa0d7f84ecdcf70d78a179cdc3a7e10d35ee65bcf1546386f393524dc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6d2c1db836bf0064dc9bbee66f2470d6527c132446c30518fd42f1424d30b4a3
[INFO] running `Command { std: "docker" "start" "-a" "6d2c1db836bf0064dc9bbee66f2470d6527c132446c30518fd42f1424d30b4a3", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust_experiments v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `Stats`
[INFO] [stdout]  --> src/calculus.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Stats {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `create`
[INFO] [stdout]   --> src/calculus.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn create(numbers: Vec<i32>) -> Stats {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `show_results`
[INFO] [stdout]   --> src/calculus.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn show_results(&self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mean`
[INFO] [stdout]   --> src/calculus.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn mean(&self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `median`
[INFO] [stdout]   --> src/calculus.rs:42:8
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn median(&self) {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `mode`
[INFO] [stdout]   --> src/calculus.rs:53:8
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn mode(&self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `collect_employees`
[INFO] [stdout]  --> src/employees.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn collect_employees() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `convert_to_pig_latin`
[INFO] [stdout]  --> src/pig_latin.rs:1:4
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn convert_to_pig_latin(word: &str) -> String {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `Command { std: "docker" "inspect" "6d2c1db836bf0064dc9bbee66f2470d6527c132446c30518fd42f1424d30b4a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d2c1db836bf0064dc9bbee66f2470d6527c132446c30518fd42f1424d30b4a3", kill_on_drop: false }`
[INFO] [stdout] 6d2c1db836bf0064dc9bbee66f2470d6527c132446c30518fd42f1424d30b4a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:eaef2f80f755933c374d2ae5edccceec0c1312ceb8a4e0b6404e8ab76561e1e5" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 032b1b6a9bfb2325b88597b34c1e6a5e3954a81633b0f834dc04d46b04e89ec8
[INFO] running `Command { std: "docker" "start" "-a" "032b1b6a9bfb2325b88597b34c1e6a5e3954a81633b0f834dc04d46b04e89ec8", kill_on_drop: false }`
[INFO] [stderr] warning: struct is never constructed: `Stats`
[INFO] [stderr]  --> src/calculus.rs:4:12
[INFO] [stderr]   |
[INFO] [stderr] 4 | pub struct Stats {
[INFO] [stderr]   |            ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `create`
[INFO] [stderr]   --> src/calculus.rs:13:12
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub fn create(numbers: Vec<i32>) -> Stats {
[INFO] [stderr]    |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `show_results`
[INFO] [stderr]   --> src/calculus.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 |     pub fn show_results(&self) {
[INFO] [stderr]    |            ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `mean`
[INFO] [stderr]   --> src/calculus.rs:37:8
[INFO] [stderr]    |
[INFO] [stderr] 37 |     fn mean(&self) {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `median`
[INFO] [stderr]   --> src/calculus.rs:42:8
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn median(&self) {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `mode`
[INFO] [stderr]   --> src/calculus.rs:53:8
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn mode(&self) {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `collect_employees`
[INFO] [stderr]  --> src/employees.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | pub fn collect_employees() {
[INFO] [stderr]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `convert_to_pig_latin`
[INFO] [stderr]  --> src/pig_latin.rs:1:4
[INFO] [stderr]   |
[INFO] [stderr] 1 | fn convert_to_pig_latin(word: &str) -> String {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rust_experiments` (bin "rust_experiments" test) generated 8 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_experiments-b71806e7ef4a5474)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "032b1b6a9bfb2325b88597b34c1e6a5e3954a81633b0f834dc04d46b04e89ec8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "032b1b6a9bfb2325b88597b34c1e6a5e3954a81633b0f834dc04d46b04e89ec8", kill_on_drop: false }`
[INFO] [stdout] 032b1b6a9bfb2325b88597b34c1e6a5e3954a81633b0f834dc04d46b04e89ec8