[INFO] fetching crate once-option 0.1.0...
[INFO] testing once-option-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 once-option 0.1.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate once-option 0.1.0
[INFO] finished tweaking crates.io crate once-option 0.1.0
[INFO] tweaked toml for crates.io crate once-option 0.1.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate once-option 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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] cdc2e2b6b25d92646167b07b5c80ced8fec7e88006c80b0648388f3cf0788c2b
[INFO] running `Command { std: "docker" "start" "-a" "cdc2e2b6b25d92646167b07b5c80ced8fec7e88006c80b0648388f3cf0788c2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdc2e2b6b25d92646167b07b5c80ced8fec7e88006c80b0648388f3cf0788c2b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdc2e2b6b25d92646167b07b5c80ced8fec7e88006c80b0648388f3cf0788c2b", kill_on_drop: false }`
[INFO] [stdout] cdc2e2b6b25d92646167b07b5c80ced8fec7e88006c80b0648388f3cf0788c2b
[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] ce79f23c773dfde904df09511f88581c6d385ed17e04ad694200d5307b98760b
[INFO] running `Command { std: "docker" "start" "-a" "ce79f23c773dfde904df09511f88581c6d385ed17e04ad694200d5307b98760b", kill_on_drop: false }`
[INFO] [stderr]    Compiling once-option v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.14s
[INFO] running `Command { std: "docker" "inspect" "ce79f23c773dfde904df09511f88581c6d385ed17e04ad694200d5307b98760b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce79f23c773dfde904df09511f88581c6d385ed17e04ad694200d5307b98760b", kill_on_drop: false }`
[INFO] [stdout] ce79f23c773dfde904df09511f88581c6d385ed17e04ad694200d5307b98760b
[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] 74a609ac4b2dcaf2e89b5e72f3eccb28a600eff444a8ceaed0b689d0c8af0202
[INFO] running `Command { std: "docker" "start" "-a" "74a609ac4b2dcaf2e89b5e72f3eccb28a600eff444a8ceaed0b689d0c8af0202", kill_on_drop: false }`
[INFO] [stderr]    Compiling once-option v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "74a609ac4b2dcaf2e89b5e72f3eccb28a600eff444a8ceaed0b689d0c8af0202", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74a609ac4b2dcaf2e89b5e72f3eccb28a600eff444a8ceaed0b689d0c8af0202", kill_on_drop: false }`
[INFO] [stdout] 74a609ac4b2dcaf2e89b5e72f3eccb28a600eff444a8ceaed0b689d0c8af0202
[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] ba9ecd0a508e50349bb774b10a113b1cddde5b41ef87521484f0396b862a6b72
[INFO] running `Command { std: "docker" "start" "-a" "ba9ecd0a508e50349bb774b10a113b1cddde5b41ef87521484f0396b862a6b72", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/once_option-276cbcac91a8fa01)
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::impl_deref_mut ... ok
[INFO] [stdout] test tests::impl_display_float_formats ... ok
[INFO] [stdout] test tests::impl_deref ... ok
[INFO] [stdout] test tests::impl_display_integer_formats ... ok
[INFO] [stdout] test tests::impl_ord ... ok
[INFO] [stdout] test tests::impl_debug ... ok
[INFO] [stdout] test tests::impl_partial_eq ... ok
[INFO] [stdout] test tests::impl_partial_ord ... ok
[INFO] [stdout] test tests::wrapping_a_thread_join_handle ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "ba9ecd0a508e50349bb774b10a113b1cddde5b41ef87521484f0396b862a6b72", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba9ecd0a508e50349bb774b10a113b1cddde5b41ef87521484f0396b862a6b72", kill_on_drop: false }`
[INFO] [stdout] ba9ecd0a508e50349bb774b10a113b1cddde5b41ef87521484f0396b862a6b72