[INFO] cloning repository https://github.com/harikesh-kolekar/rust-execute-command
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/harikesh-kolekar/rust-execute-command" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharikesh-kolekar%2Frust-execute-command", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharikesh-kolekar%2Frust-execute-command'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b0ed65b60450a8799f3813b172cfae98442c4d2e
[INFO] testing harikesh-kolekar/rust-execute-command against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharikesh-kolekar%2Frust-execute-command" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/harikesh-kolekar/rust-execute-command on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/harikesh-kolekar/rust-execute-command
[INFO] finished tweaking git repo https://github.com/harikesh-kolekar/rust-execute-command
[INFO] tweaked toml for git repo https://github.com/harikesh-kolekar/rust-execute-command written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/harikesh-kolekar/rust-execute-command already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded toml v0.4.2
[INFO] [stderr]   Downloaded serde_derive v1.0.10
[INFO] [stderr]   Downloaded term-painter v0.2.3
[INFO] [stderr]   Downloaded serde_derive_internals v0.15.1
[INFO] [stderr]   Downloaded serde v1.0.10
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c69652aa7f522c06bc8831967e2ee9caf7446e90273ccbce74a18b22827e161
[INFO] running `Command { std: "docker" "start" "-a" "4c69652aa7f522c06bc8831967e2ee9caf7446e90273ccbce74a18b22827e161", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c69652aa7f522c06bc8831967e2ee9caf7446e90273ccbce74a18b22827e161", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c69652aa7f522c06bc8831967e2ee9caf7446e90273ccbce74a18b22827e161", kill_on_drop: false }`
[INFO] [stdout] 4c69652aa7f522c06bc8831967e2ee9caf7446e90273ccbce74a18b22827e161
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d863a79880737977ae2f37394ad5ef8e3bae45629e1629dead5dc70e7527bbc4
[INFO] running `Command { std: "docker" "start" "-a" "d863a79880737977ae2f37394ad5ef8e3bae45629e1629dead5dc70e7527bbc4", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling serde v1.0.10
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling term-painter v0.2.3
[INFO] [stderr]    Compiling serde_derive_internals v0.15.1
[INFO] [stderr]    Compiling serde_derive v1.0.10
[INFO] [stderr]    Compiling toml v0.4.2
[INFO] [stderr]    Compiling run v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> src/main.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |         Ok(config) => println!("{}", ""),
[INFO] [stdout]    |            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.71s
[INFO] running `Command { std: "docker" "inspect" "d863a79880737977ae2f37394ad5ef8e3bae45629e1629dead5dc70e7527bbc4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d863a79880737977ae2f37394ad5ef8e3bae45629e1629dead5dc70e7527bbc4", kill_on_drop: false }`
[INFO] [stdout] d863a79880737977ae2f37394ad5ef8e3bae45629e1629dead5dc70e7527bbc4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd7fab41840fdac68b2f1721efe8caa2b707168bacdb1f939d700eac98f363e6
[INFO] running `Command { std: "docker" "start" "-a" "cd7fab41840fdac68b2f1721efe8caa2b707168bacdb1f939d700eac98f363e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling run v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `config`
[INFO] [stdout]   --> src/main.rs:45:12
[INFO] [stdout]    |
[INFO] [stdout] 45 |         Ok(config) => println!("{}", ""),
[INFO] [stdout]    |            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "cd7fab41840fdac68b2f1721efe8caa2b707168bacdb1f939d700eac98f363e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd7fab41840fdac68b2f1721efe8caa2b707168bacdb1f939d700eac98f363e6", kill_on_drop: false }`
[INFO] [stdout] cd7fab41840fdac68b2f1721efe8caa2b707168bacdb1f939d700eac98f363e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 38ec17d52575c1c761e1881f2140d5d3130731717d11e6f1917a519a6247e1b7
[INFO] running `Command { std: "docker" "start" "-a" "38ec17d52575c1c761e1881f2140d5d3130731717d11e6f1917a519a6247e1b7", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused variable: `config`
[INFO] [stdout] running 0 tests
[INFO] [stderr]   --> src/main.rs:45:12
[INFO] [stdout] 
[INFO] [stderr]    |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] 45 |         Ok(config) => println!("{}", ""),
[INFO] [stdout] 
[INFO] [stderr]    |            ^^^^^^ help: if this is intentional, prefix it with an underscore: `_config`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `run` (bin "run" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/run-7cbeca04002bb6b0)
[INFO] running `Command { std: "docker" "inspect" "38ec17d52575c1c761e1881f2140d5d3130731717d11e6f1917a519a6247e1b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38ec17d52575c1c761e1881f2140d5d3130731717d11e6f1917a519a6247e1b7", kill_on_drop: false }`
[INFO] [stdout] 38ec17d52575c1c761e1881f2140d5d3130731717d11e6f1917a519a6247e1b7