[INFO] updating cached repository https://github.com/Askaholic/rust-intro
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 863aaad62137c038592c5392e56e8b015f301c74
[INFO] testing Askaholic/rust-intro against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAskaholic%2Frust-intro" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Askaholic/rust-intro on toolchain 41997647ba6a77908f6ef64401414feb00bccf16
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/Askaholic/rust-intro
[INFO] finished tweaking git repo https://github.com/Askaholic/rust-intro
[INFO] tweaked toml for git repo https://github.com/Askaholic/rust-intro written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate git repo https://github.com/Askaholic/rust-intro already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "build" "--frozen"`
[INFO] [stdout] cabbf32081915db2b4252467f65e1c88b61b4e105117db92b50bc9d8813360dd
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "cabbf32081915db2b4252467f65e1c88b61b4e105117db92b50bc9d8813360dd"`
[INFO] [stderr]    Compiling libc v0.2.41
[INFO] [stderr]    Compiling rand_core v0.2.0
[INFO] [stderr]    Compiling rand v0.5.0
[INFO] [stderr]    Compiling hello_world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `guess`
[INFO] [stderr]   --> src/guess.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn guess() {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_guess`
[INFO] [stderr]   --> src/guess.rs:41:4
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn get_guess() -> Result<i64, std::num::ParseIntError> {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.32s
[INFO] running `"docker" "inspect" "cabbf32081915db2b4252467f65e1c88b61b4e105117db92b50bc9d8813360dd"`
[INFO] running `"docker" "rm" "-f" "cabbf32081915db2b4252467f65e1c88b61b4e105117db92b50bc9d8813360dd"`
[INFO] [stdout] cabbf32081915db2b4252467f65e1c88b61b4e105117db92b50bc9d8813360dd
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1615d99a5b87ee8552d52ca8d9c885f74010aec8ff557fde636dd31ada2be695
[INFO] running `"docker" "start" "-a" "1615d99a5b87ee8552d52ca8d9c885f74010aec8ff557fde636dd31ada2be695"`
[INFO] [stderr]    Compiling hello_world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: function is never used: `guess`
[INFO] [stderr]   --> src/guess.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn guess() {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_guess`
[INFO] [stderr]   --> src/guess.rs:41:4
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn get_guess() -> Result<i64, std::num::ParseIntError> {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `"docker" "inspect" "1615d99a5b87ee8552d52ca8d9c885f74010aec8ff557fde636dd31ada2be695"`
[INFO] running `"docker" "rm" "-f" "1615d99a5b87ee8552d52ca8d9c885f74010aec8ff557fde636dd31ada2be695"`
[INFO] [stdout] 1615d99a5b87ee8552d52ca8d9c885f74010aec8ff557fde636dd31ada2be695
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 97cd5491a106aa7aacb45eb1f3843c7c16113f64c7ad329f711966406ddf3715
[INFO] running `"docker" "start" "-a" "97cd5491a106aa7aacb45eb1f3843c7c16113f64c7ad329f711966406ddf3715"`
[INFO] [stderr] warning: function is never used: `guess`
[INFO] [stderr]   --> src/guess.rs:14:8
[INFO] [stderr]    |
[INFO] [stderr] 14 | pub fn guess() {
[INFO] [stderr]    |        ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `get_guess`
[INFO] [stderr]   --> src/guess.rs:41:4
[INFO] [stderr]    |
[INFO] [stderr] 41 | fn get_guess() -> Result<i64, std::num::ParseIntError> {
[INFO] [stderr]    |    ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hello_world-62519a548422fded
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "97cd5491a106aa7aacb45eb1f3843c7c16113f64c7ad329f711966406ddf3715"`
[INFO] running `"docker" "rm" "-f" "97cd5491a106aa7aacb45eb1f3843c7c16113f64c7ad329f711966406ddf3715"`
[INFO] [stdout] 97cd5491a106aa7aacb45eb1f3843c7c16113f64c7ad329f711966406ddf3715