[INFO] cloning repository https://github.com/wangchen000/snowflake
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wangchen000/snowflake" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwangchen000%2Fsnowflake", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwangchen000%2Fsnowflake'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 019277e70e2cebc2bbceed27de696ece1dbbff18
[INFO] checking wangchen000/snowflake against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwangchen000%2Fsnowflake" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wangchen000/snowflake on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wangchen000/snowflake
[INFO] finished tweaking git repo https://github.com/wangchen000/snowflake
[INFO] tweaked toml for git repo https://github.com/wangchen000/snowflake written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/wangchen000/snowflake already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6266b4e7253013515ae3882d60eb6562c54c403d48d8c979425a7c130666317
[INFO] running `Command { std: "docker" "start" "-a" "d6266b4e7253013515ae3882d60eb6562c54c403d48d8c979425a7c130666317", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6266b4e7253013515ae3882d60eb6562c54c403d48d8c979425a7c130666317", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6266b4e7253013515ae3882d60eb6562c54c403d48d8c979425a7c130666317", kill_on_drop: false }`
[INFO] [stdout] d6266b4e7253013515ae3882d60eb6562c54c403d48d8c979425a7c130666317
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] de7b2f092da2c5f8a96a5ef069ed87a3b8f822d7923baa23a108042fb0176ac2
[INFO] running `Command { std: "docker" "start" "-a" "de7b2f092da2c5f8a96a5ef069ed87a3b8f822d7923baa23a108042fb0176ac2", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking chrono v0.4.10
[INFO] [stderr]     Checking snowflake v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `Snowflake`
[INFO] [stdout]  --> src/snowflake.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct Snowflake {
[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: `kubernetes`
[INFO] [stdout]   --> src/snowflake.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn kubernetes() -> Snowflake {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/snowflake.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn new(worker_id: i64) -> Snowflake {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `generate`
[INFO] [stdout]   --> src/snowflake.rs:38:12
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub fn generate(&mut self) -> Option<i64> {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_time`
[INFO] [stdout]   --> src/snowflake.rs:61:8
[INFO] [stdout]    |
[INFO] [stdout] 61 |     fn get_time(&self) -> i64 {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_ip`
[INFO] [stdout]   --> src/snowflake.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn get_ip() -> Option<String> {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/snowflake.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn new(worker_id: i64) -> Snowflake {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.55s
[INFO] running `Command { std: "docker" "inspect" "de7b2f092da2c5f8a96a5ef069ed87a3b8f822d7923baa23a108042fb0176ac2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de7b2f092da2c5f8a96a5ef069ed87a3b8f822d7923baa23a108042fb0176ac2", kill_on_drop: false }`
[INFO] [stdout] de7b2f092da2c5f8a96a5ef069ed87a3b8f822d7923baa23a108042fb0176ac2