[INFO] updating cached repository https://github.com/aarthiKarthik/Rust-Basics
[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] 60ffe8aa9d5a7b66673d2b289c477219861c63c0
[INFO] testing aarthiKarthik/Rust-Basics against try#41997647ba6a77908f6ef64401414feb00bccf16 for pr-71274
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FaarthiKarthik%2FRust-Basics" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aarthiKarthik/Rust-Basics 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/aarthiKarthik/Rust-Basics
[INFO] finished tweaking git repo https://github.com/aarthiKarthik/Rust-Basics
[INFO] tweaked toml for git repo https://github.com/aarthiKarthik/Rust-Basics written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/aarthiKarthik/Rust-Basics already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+41997647ba6a77908f6ef64401414feb00bccf16" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 08ea482c6dd13e068a63f1b90cf188827df9a611f7be63d9559cc8e0d0a07ff5
[INFO] running `"docker" "start" "-a" "08ea482c6dd13e068a63f1b90cf188827df9a611f7be63d9559cc8e0d0a07ff5"`
[INFO] [stderr]    Compiling hello_world v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unknown lint: `unused_variable`
[INFO] [stderr]  --> src/main.rs:2:10
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![allow(unused_variable)]
[INFO] [stderr]   |          ^^^^^^^^^^^^^^^ help: did you mean: `unused_variables`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/main.rs:88:6
[INFO] [stderr]    |
[INFO] [stderr] 88 |     let a = 123;
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.98s
[INFO] running `"docker" "inspect" "08ea482c6dd13e068a63f1b90cf188827df9a611f7be63d9559cc8e0d0a07ff5"`
[INFO] running `"docker" "rm" "-f" "08ea482c6dd13e068a63f1b90cf188827df9a611f7be63d9559cc8e0d0a07ff5"`
[INFO] [stdout] 08ea482c6dd13e068a63f1b90cf188827df9a611f7be63d9559cc8e0d0a07ff5
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] ac74e35f8960cd57d942cc6811b3a7acf49d512da6d01c87ef39407652d65e85
[INFO] running `"docker" "start" "-a" "ac74e35f8960cd57d942cc6811b3a7acf49d512da6d01c87ef39407652d65e85"`
[INFO] [stderr]    Compiling hello_world v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unknown lint: `unused_variable`
[INFO] [stderr]  --> src/main.rs:2:10
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![allow(unused_variable)]
[INFO] [stderr]   |          ^^^^^^^^^^^^^^^ help: did you mean: `unused_variables`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/main.rs:88:6
[INFO] [stderr]    |
[INFO] [stderr] 88 |     let a = 123;
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `"docker" "inspect" "ac74e35f8960cd57d942cc6811b3a7acf49d512da6d01c87ef39407652d65e85"`
[INFO] running `"docker" "rm" "-f" "ac74e35f8960cd57d942cc6811b3a7acf49d512da6d01c87ef39407652d65e85"`
[INFO] [stdout] ac74e35f8960cd57d942cc6811b3a7acf49d512da6d01c87ef39407652d65e85
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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] 7297bf1d1c606b52ba296cf3f2c318ebe9176b3bda668f52058126652f686ae9
[INFO] running `"docker" "start" "-a" "7297bf1d1c606b52ba296cf3f2c318ebe9176b3bda668f52058126652f686ae9"`
[INFO] [stderr] warning: unknown lint: `unused_variable`
[INFO] [stderr]  --> src/main.rs:2:10
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![allow(unused_variable)]
[INFO] [stderr]   |          ^^^^^^^^^^^^^^^ help: did you mean: `unused_variables`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `a`
[INFO] [stderr]   --> src/main.rs:88:6
[INFO] [stderr]    |
[INFO] [stderr] 88 |     let a = 123;
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hello_world-0af2b660f2c38977
[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" "7297bf1d1c606b52ba296cf3f2c318ebe9176b3bda668f52058126652f686ae9"`
[INFO] running `"docker" "rm" "-f" "7297bf1d1c606b52ba296cf3f2c318ebe9176b3bda668f52058126652f686ae9"`
[INFO] [stdout] 7297bf1d1c606b52ba296cf3f2c318ebe9176b3bda668f52058126652f686ae9