[INFO] cloning repository https://github.com/germanfica/mysqlclient_example_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/germanfica/mysqlclient_example_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgermanfica%2Fmysqlclient_example_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgermanfica%2Fmysqlclient_example_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d8de53897d5ed98cc67ae1ac5109d6b1e777b9e3
[INFO] building germanfica/mysqlclient_example_rust against master#ce36a966c79e109dabeef7a47fe68e5294c6d71e for pr-137044-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgermanfica%2Fmysqlclient_example_rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/germanfica/mysqlclient_example_rust on toolchain ce36a966c79e109dabeef7a47fe68e5294c6d71e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ce36a966c79e109dabeef7a47fe68e5294c6d71e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/germanfica/mysqlclient_example_rust
[INFO] finished tweaking git repo https://github.com/germanfica/mysqlclient_example_rust
[INFO] tweaked toml for git repo https://github.com/germanfica/mysqlclient_example_rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/germanfica/mysqlclient_example_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ce36a966c79e109dabeef7a47fe68e5294c6d71e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mysqlclient-sys v0.4.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+ce36a966c79e109dabeef7a47fe68e5294c6d71e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81f0f1c4223a25fc0a1816216667fe30063cec050fbe64bd79b81a9e4088309f
[INFO] running `Command { std: "docker" "start" "-a" "81f0f1c4223a25fc0a1816216667fe30063cec050fbe64bd79b81a9e4088309f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81f0f1c4223a25fc0a1816216667fe30063cec050fbe64bd79b81a9e4088309f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81f0f1c4223a25fc0a1816216667fe30063cec050fbe64bd79b81a9e4088309f", kill_on_drop: false }`
[INFO] [stdout] 81f0f1c4223a25fc0a1816216667fe30063cec050fbe64bd79b81a9e4088309f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+ce36a966c79e109dabeef7a47fe68e5294c6d71e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5c4759100032b716b4581c5855d27f2b8ccb62210a4ef71dab29c4d9352d5ae
[INFO] running `Command { std: "docker" "start" "-a" "e5c4759100032b716b4581c5855d27f2b8ccb62210a4ef71dab29c4d9352d5ae", kill_on_drop: false }`
[INFO] [stderr]    Compiling pkg-config v0.3.30
[INFO] [stderr]    Compiling dotenv v0.15.0
[INFO] [stderr]    Compiling mysqlclient-sys v0.4.1
[INFO] [stderr]    Compiling mysqlclient_example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `warning_color` is never used
[INFO] [stdout]   --> src/color.rs:38:8
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub fn warning_color() -> &'static str {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.72s
[INFO] running `Command { std: "docker" "inspect" "e5c4759100032b716b4581c5855d27f2b8ccb62210a4ef71dab29c4d9352d5ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5c4759100032b716b4581c5855d27f2b8ccb62210a4ef71dab29c4d9352d5ae", kill_on_drop: false }`
[INFO] [stdout] e5c4759100032b716b4581c5855d27f2b8ccb62210a4ef71dab29c4d9352d5ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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@sha256:3959728d45483eb673ba100a951a6b9f5012970368db2a9e08e0ac9b67c8a5ad" "/opt/rustwide/cargo-home/bin/cargo" "+ce36a966c79e109dabeef7a47fe68e5294c6d71e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f1a41fed4c91be5d6a71fdb1c6ed83478ac740347a39617c9a79a42e8634206
[INFO] running `Command { std: "docker" "start" "-a" "7f1a41fed4c91be5d6a71fdb1c6ed83478ac740347a39617c9a79a42e8634206", kill_on_drop: false }`
[INFO] [stderr]    Compiling mysqlclient_example v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "7f1a41fed4c91be5d6a71fdb1c6ed83478ac740347a39617c9a79a42e8634206", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f1a41fed4c91be5d6a71fdb1c6ed83478ac740347a39617c9a79a42e8634206", kill_on_drop: false }`
[INFO] [stdout] 7f1a41fed4c91be5d6a71fdb1c6ed83478ac740347a39617c9a79a42e8634206