[INFO] cloning repository https://github.com/bnock/rust-exercises
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/bnock/rust-exercises" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbnock%2Frust-exercises", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbnock%2Frust-exercises'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bf1534219682a1cac1b10e1d2c3ef90a352e99a1
[INFO] checking bnock/rust-exercises against try#0e1f5e292c80a395d02835ac656d141e992caf89 for pr-145605
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbnock%2Frust-exercises" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bnock/rust-exercises
[INFO] finished tweaking git repo https://github.com/bnock/rust-exercises
[INFO] tweaked toml for git repo https://github.com/bnock/rust-exercises written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bnock/rust-exercises on toolchain 0e1f5e292c80a395d02835ac656d141e992caf89
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0e1f5e292c80a395d02835ac656d141e992caf89" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bnock/rust-exercises 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" "+0e1f5e292c80a395d02835ac656d141e992caf89" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking bnock/rust-exercises against try#0e1f5e292c80a395d02835ac656d141e992caf89 for pr-145605
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbnock%2Frust-exercises" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/bnock/rust-exercises
[INFO] finished tweaking git repo https://github.com/bnock/rust-exercises
[INFO] tweaked toml for git repo https://github.com/bnock/rust-exercises written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/bnock/rust-exercises on toolchain 0e1f5e292c80a395d02835ac656d141e992caf89
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0e1f5e292c80a395d02835ac656d141e992caf89" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/bnock/rust-exercises 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" "+0e1f5e292c80a395d02835ac656d141e992caf89" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+0e1f5e292c80a395d02835ac656d141e992caf89" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ea0f73833e9e062029f380adc587c21140ae70e2728979595716071c5a1363a7
[INFO] running `Command { std: "docker" "start" "-a" "ea0f73833e9e062029f380adc587c21140ae70e2728979595716071c5a1363a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea0f73833e9e062029f380adc587c21140ae70e2728979595716071c5a1363a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea0f73833e9e062029f380adc587c21140ae70e2728979595716071c5a1363a7", kill_on_drop: false }`
[INFO] [stdout] ea0f73833e9e062029f380adc587c21140ae70e2728979595716071c5a1363a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+0e1f5e292c80a395d02835ac656d141e992caf89" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7ca801cb542e7c3dfa22cb17fed9b7976a8acec4fa8b7eeb2c51229ef7892459
[INFO] running `Command { std: "docker" "start" "-a" "7ca801cb542e7c3dfa22cb17fed9b7976a8acec4fa8b7eeb2c51229ef7892459", kill_on_drop: false }`
[INFO] [stderr]     Checking inflections v1.1.1
[INFO] [stderr]     Checking exercises v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/the_basics.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub fn run() {
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/the_basics.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/the_basics.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/the_basics.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/the_basics.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/the_basics.rs:82:12
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]    --> src/the_basics.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 |     pub fn run() {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]    --> src/the_basics.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub fn run() {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]    --> src/the_basics.rs:139:12
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn run() {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]    --> src/the_basics.rs:155:12
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn run() {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]    --> src/the_basics.rs:169:12
[INFO] [stdout]     |
[INFO] [stdout] 169 |     pub fn run() {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/if_statements.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn run() {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/if_statements.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/if_statements.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/if_statements.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/if_statements.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/if_statements.rs:99:12
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]    --> src/if_statements.rs:119:12
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn run() {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]    --> src/if_statements.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 |     pub fn run() {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/strings.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub fn run() {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/strings.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/strings.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/the_basics.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub fn run() {
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/the_basics.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/the_basics.rs:33:12
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/the_basics.rs:39:12
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/the_basics.rs:58:12
[INFO] [stdout]    |
[INFO] [stdout] 58 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/the_basics.rs:82:12
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]    --> src/the_basics.rs:101:12
[INFO] [stdout]     |
[INFO] [stdout] 101 |     pub fn run() {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]    --> src/the_basics.rs:120:12
[INFO] [stdout]     |
[INFO] [stdout] 120 |     pub fn run() {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]    --> src/the_basics.rs:139:12
[INFO] [stdout]     |
[INFO] [stdout] 139 |     pub fn run() {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]    --> src/the_basics.rs:155:12
[INFO] [stdout]     |
[INFO] [stdout] 155 |     pub fn run() {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]    --> src/the_basics.rs:169:12
[INFO] [stdout]     |
[INFO] [stdout] 169 |     pub fn run() {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/if_statements.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 |     pub fn run() {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/if_statements.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/if_statements.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 41 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/if_statements.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/if_statements.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/if_statements.rs:99:12
[INFO] [stdout]    |
[INFO] [stdout] 99 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]    --> src/if_statements.rs:119:12
[INFO] [stdout]     |
[INFO] [stdout] 119 |     pub fn run() {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]    --> src/if_statements.rs:137:12
[INFO] [stdout]     |
[INFO] [stdout] 137 |     pub fn run() {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]  --> src/strings.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub fn run() {
[INFO] [stdout]   |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/strings.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `run` is never used
[INFO] [stdout]   --> src/strings.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn run() {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "7ca801cb542e7c3dfa22cb17fed9b7976a8acec4fa8b7eeb2c51229ef7892459", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ca801cb542e7c3dfa22cb17fed9b7976a8acec4fa8b7eeb2c51229ef7892459", kill_on_drop: false }`
[INFO] [stdout] 7ca801cb542e7c3dfa22cb17fed9b7976a8acec4fa8b7eeb2c51229ef7892459