[INFO] fetching crate potlood 0.1.0...
[INFO] testing potlood-0.1.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate potlood 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate potlood 0.1.0
[INFO] finished tweaking crates.io crate potlood 0.1.0
[INFO] tweaked toml for crates.io crate potlood 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate potlood 0.1.0 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate potlood 0.1.0 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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dbcecc15eec394cd85e912906b0bf4c66de6b5a661dc7e6f3c62c146c45968a8
[INFO] running `Command { std: "docker" "start" "-a" "dbcecc15eec394cd85e912906b0bf4c66de6b5a661dc7e6f3c62c146c45968a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dbcecc15eec394cd85e912906b0bf4c66de6b5a661dc7e6f3c62c146c45968a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dbcecc15eec394cd85e912906b0bf4c66de6b5a661dc7e6f3c62c146c45968a8", kill_on_drop: false }`
[INFO] [stdout] dbcecc15eec394cd85e912906b0bf4c66de6b5a661dc7e6f3c62c146c45968a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 37b855f807a73a7c97ac590a902244371b57188772a7f47a78d14bb926b89c44
[INFO] running `Command { std: "docker" "start" "-a" "37b855f807a73a7c97ac590a902244371b57188772a7f47a78d14bb926b89c44", kill_on_drop: false }`
[INFO] [stderr]    Compiling potlood v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "37b855f807a73a7c97ac590a902244371b57188772a7f47a78d14bb926b89c44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37b855f807a73a7c97ac590a902244371b57188772a7f47a78d14bb926b89c44", kill_on_drop: false }`
[INFO] [stdout] 37b855f807a73a7c97ac590a902244371b57188772a7f47a78d14bb926b89c44
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 64606fa1072c888ef22e3db13ec09af943cb6735c9f35e85cd5fbbe972fd4f63
[INFO] running `Command { std: "docker" "start" "-a" "64606fa1072c888ef22e3db13ec09af943cb6735c9f35e85cd5fbbe972fd4f63", kill_on_drop: false }`
[INFO] [stderr]    Compiling potlood v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/shapes.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     paper.rect(width / 4, height / 4, 100, 200, Pixel::color(Color::Red));
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let _ = paper.rect(width / 4, height / 4, 100, 200, Pixel::color(Color::Red));
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/shapes.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | /     paper.circle(
[INFO] [stdout] 21 | |         3 * width / 4,
[INFO] [stdout] 22 | |         3 * height / 4,
[INFO] [stdout] 23 | |         100,
[INFO] [stdout] 24 | |         Pixel::color(Color::Green),
[INFO] [stdout] 25 | |     );
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 20 |     let _ = paper.circle(
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "64606fa1072c888ef22e3db13ec09af943cb6735c9f35e85cd5fbbe972fd4f63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64606fa1072c888ef22e3db13ec09af943cb6735c9f35e85cd5fbbe972fd4f63", kill_on_drop: false }`
[INFO] [stdout] 64606fa1072c888ef22e3db13ec09af943cb6735c9f35e85cd5fbbe972fd4f63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] aba0b84740f06d2f7460c5079dc6bdb9619be14dc8c98e63ce94db043f271bc0
[INFO] running `Command { std: "docker" "start" "-a" "aba0b84740f06d2f7460c5079dc6bdb9619be14dc8c98e63ce94db043f271bc0", kill_on_drop: false }`
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> examples/shapes.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     paper.rect(width / 4, height / 4, 100, 200, Pixel::color(Color::Red));
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let _ = paper.rect(width / 4, height / 4, 100, 200, Pixel::color(Color::Red));
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> examples/shapes.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | /     paper.circle(
[INFO] [stderr] 21 | |         3 * width / 4,
[INFO] [stderr] 22 | |         3 * height / 4,
[INFO] [stderr] 23 | |         100,
[INFO] [stderr] 24 | |         Pixel::color(Color::Green),
[INFO] [stderr] 25 | |     );
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 20 |     let _ = paper.circle(
[INFO] [stderr]    |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `potlood` (example "shapes") generated 2 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/potlood-73876893032c3234)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::pixel_ppm ... ok
[INFO] [stdout] test tests::ppm ... 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" "aba0b84740f06d2f7460c5079dc6bdb9619be14dc8c98e63ce94db043f271bc0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aba0b84740f06d2f7460c5079dc6bdb9619be14dc8c98e63ce94db043f271bc0", kill_on_drop: false }`
[INFO] [stdout] aba0b84740f06d2f7460c5079dc6bdb9619be14dc8c98e63ce94db043f271bc0