[INFO] cloning repository https://github.com/jeffusan/rust_fun
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jeffusan/rust_fun" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeffusan%2Frust_fun", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeffusan%2Frust_fun'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0db63d2afabccf1934eb3df46b5dc33064891761
[INFO] testing jeffusan/rust_fun against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeffusan%2Frust_fun" "/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/jeffusan/rust_fun on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jeffusan/rust_fun
[INFO] finished tweaking git repo https://github.com/jeffusan/rust_fun
[INFO] tweaked toml for git repo https://github.com/jeffusan/rust_fun written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/jeffusan/rust_fun already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f80db6a82e45e14640dc9153e36836211f1e72df140dfdb52afc641160491b4
[INFO] running `Command { std: "docker" "start" "-a" "7f80db6a82e45e14640dc9153e36836211f1e72df140dfdb52afc641160491b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f80db6a82e45e14640dc9153e36836211f1e72df140dfdb52afc641160491b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f80db6a82e45e14640dc9153e36836211f1e72df140dfdb52afc641160491b4", kill_on_drop: false }`
[INFO] [stdout] 7f80db6a82e45e14640dc9153e36836211f1e72df140dfdb52afc641160491b4
[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=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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bdc8969dc5737578353e82acc9e1ad2235d8ccca33e31b2503f0ce6a49831407
[INFO] running `Command { std: "docker" "start" "-a" "bdc8969dc5737578353e82acc9e1ad2235d8ccca33e31b2503f0ce6a49831407", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling hello-world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `Stack`
[INFO] [stdout]  --> src/main.rs:7:16
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub struct Stack {
[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: `new`
[INFO] [stdout]   --> src/main.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 16 |         pub fn new() -> Stack {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `push`
[INFO] [stdout]   --> src/main.rs:23:16
[INFO] [stdout]    |
[INFO] [stdout] 23 |         pub fn push(&mut self, item: i8) {
[INFO] [stdout]    |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `pop`
[INFO] [stdout]   --> src/main.rs:35:16
[INFO] [stdout]    |
[INFO] [stdout] 35 |         pub fn pop(&mut self) -> Option<i8> {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `max`
[INFO] [stdout]   --> src/main.rs:42:16
[INFO] [stdout]    |
[INFO] [stdout] 42 |         pub fn max(&self) -> i8 {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.42s
[INFO] running `Command { std: "docker" "inspect" "bdc8969dc5737578353e82acc9e1ad2235d8ccca33e31b2503f0ce6a49831407", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdc8969dc5737578353e82acc9e1ad2235d8ccca33e31b2503f0ce6a49831407", kill_on_drop: false }`
[INFO] [stdout] bdc8969dc5737578353e82acc9e1ad2235d8ccca33e31b2503f0ce6a49831407
[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=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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5c07d1fccf5dd68ad1c0e5a67e776bc1e9d9cd87b1e472903a3d8e9942a0820
[INFO] running `Command { std: "docker" "start" "-a" "d5c07d1fccf5dd68ad1c0e5a67e776bc1e9d9cd87b1e472903a3d8e9942a0820", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello-world v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "d5c07d1fccf5dd68ad1c0e5a67e776bc1e9d9cd87b1e472903a3d8e9942a0820", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5c07d1fccf5dd68ad1c0e5a67e776bc1e9d9cd87b1e472903a3d8e9942a0820", kill_on_drop: false }`
[INFO] [stdout] d5c07d1fccf5dd68ad1c0e5a67e776bc1e9d9cd87b1e472903a3d8e9942a0820
[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=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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b968d51a0aec80e446025a9c3e7538ab708921be62ace31121ec2e4d70e85a87
[INFO] running `Command { std: "docker" "start" "-a" "b968d51a0aec80e446025a9c3e7538ab708921be62ace31121ec2e4d70e85a87", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hello_world-0c49f2b0482e2aa2)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test stack::max_test ... ok
[INFO] [stdout] test stack::push_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b968d51a0aec80e446025a9c3e7538ab708921be62ace31121ec2e4d70e85a87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b968d51a0aec80e446025a9c3e7538ab708921be62ace31121ec2e4d70e85a87", kill_on_drop: false }`
[INFO] [stdout] b968d51a0aec80e446025a9c3e7538ab708921be62ace31121ec2e4d70e85a87