[INFO] fetching crate register-bits 0.2.3...
[INFO] testing register-bits-0.2.3 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate register-bits 0.2.3 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate register-bits 0.2.3
[INFO] finished tweaking crates.io crate register-bits 0.2.3
[INFO] tweaked toml for crates.io crate register-bits 0.2.3 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate register-bits 0.2.3 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-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 2ba5f85bf034d99ee5195aa0b11a07f2b2b38597b87833b0512845f52b2dc558
[INFO] running `Command { std: "docker" "start" "-a" "2ba5f85bf034d99ee5195aa0b11a07f2b2b38597b87833b0512845f52b2dc558", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ba5f85bf034d99ee5195aa0b11a07f2b2b38597b87833b0512845f52b2dc558", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ba5f85bf034d99ee5195aa0b11a07f2b2b38597b87833b0512845f52b2dc558", kill_on_drop: false }`
[INFO] [stdout] 2ba5f85bf034d99ee5195aa0b11a07f2b2b38597b87833b0512845f52b2dc558
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 23b6139111f259a8d77c7b088220c968c41889438a68a77b1066d09173a41d1f
[INFO] running `Command { std: "docker" "start" "-a" "23b6139111f259a8d77c7b088220c968c41889438a68a77b1066d09173a41d1f", kill_on_drop: false }`
[INFO] [stderr]    Compiling register-bits v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.17s
[INFO] running `Command { std: "docker" "inspect" "23b6139111f259a8d77c7b088220c968c41889438a68a77b1066d09173a41d1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23b6139111f259a8d77c7b088220c968c41889438a68a77b1066d09173a41d1f", kill_on_drop: false }`
[INFO] [stdout] 23b6139111f259a8d77c7b088220c968c41889438a68a77b1066d09173a41d1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 60419ad48f938cdee7a61a49fc204ddef078d1645fc53832db8f18954f332c8f
[INFO] running `Command { std: "docker" "start" "-a" "60419ad48f938cdee7a61a49fc204ddef078d1645fc53832db8f18954f332c8f", kill_on_drop: false }`
[INFO] [stderr]    Compiling register-bits v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `PlaceholderStructNameBitSize` is never used
[INFO] [stdout]    --> src/reg_reference.rs:312:11
[INFO] [stdout]     |
[INFO] [stdout] 312 | pub trait PlaceholderStructNameBitSize {
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `PlaceholderStructNameDownCast` is never used
[INFO] [stdout]    --> src/reg_reference.rs:323:11
[INFO] [stdout]     |
[INFO] [stdout] 323 | pub trait PlaceholderStructNameDownCast<const T: usize>:
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `PlaceholderStructNameUpCast` is never used
[INFO] [stdout]    --> src/reg_reference.rs:362:11
[INFO] [stdout]     |
[INFO] [stdout] 362 | pub trait PlaceholderStructNameUpCast<const T: usize>:
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `PlaceholderStructNameConcat` is never used
[INFO] [stdout]    --> src/reg_reference.rs:439:11
[INFO] [stdout]     |
[INFO] [stdout] 439 | pub trait PlaceholderStructNameConcat<const R: usize, const O: usize>:
[INFO] [stdout]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "60419ad48f938cdee7a61a49fc204ddef078d1645fc53832db8f18954f332c8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60419ad48f938cdee7a61a49fc204ddef078d1645fc53832db8f18954f332c8f", kill_on_drop: false }`
[INFO] [stdout] 60419ad48f938cdee7a61a49fc204ddef078d1645fc53832db8f18954f332c8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] c4f10198eaa854ccd8ae435673af8b9849334db55958e4cc1548c612d15a3644
[INFO] running `Command { std: "docker" "start" "-a" "c4f10198eaa854ccd8ae435673af8b9849334db55958e4cc1548c612d15a3644", kill_on_drop: false }`
[INFO] [stderr] warning: trait `PlaceholderStructNameBitSize` is never used
[INFO] [stderr]    --> src/reg_reference.rs:312:11
[INFO] [stderr]     |
[INFO] [stderr] 312 | pub trait PlaceholderStructNameBitSize {
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait `PlaceholderStructNameDownCast` is never used
[INFO] [stderr]    --> src/reg_reference.rs:323:11
[INFO] [stderr]     |
[INFO] [stderr] 323 | pub trait PlaceholderStructNameDownCast<const T: usize>:
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `PlaceholderStructNameUpCast` is never used
[INFO] [stderr]    --> src/reg_reference.rs:362:11
[INFO] [stderr]     |
[INFO] [stderr] 362 | pub trait PlaceholderStructNameUpCast<const T: usize>:
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait `PlaceholderStructNameConcat` is never used
[INFO] [stderr]    --> src/reg_reference.rs:439:11
[INFO] [stderr]     |
[INFO] [stderr] 439 | pub trait PlaceholderStructNameConcat<const R: usize, const O: usize>:
[INFO] [stderr]     |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `register-bits` (lib test) generated 4 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/register_bits-3335d9c5a939108f)
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test reg_reference::tests::base_ones ... ok
[INFO] [stdout] test reg_reference::tests::bit_eq ... ok
[INFO] [stdout] test reg_reference::tests::bits_add ... ok
[INFO] [stdout] test reg_reference::tests::bits_consts ... ok
[INFO] [stdout] test reg_reference::tests::bits_div ... ok
[INFO] [stdout] test reg_reference::tests::bits_not ... ok
[INFO] [stdout] test reg_reference::tests::bits_rem ... ok
[INFO] [stdout] test reg_reference::tests::bits_shl ... ok
[INFO] [stdout] test reg_reference::tests::bits_shr ... ok
[INFO] [stdout] test reg_reference::tests::bits_sub ... ok
[INFO] [stdout] test reg_reference::tests::get_bits ... ok
[INFO] [stdout] test reg_reference::tests::match_bits ... ok
[INFO] [stdout] test reg_reference::tests::priv_truncate ... ok
[INFO] [stdout] test reg_reference::tests::top_bit ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/concat.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/concat-a8fb82052c6377fd)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test concat ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/up-downcasting.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/up_downcasting-b56c047339194ffd)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test downcasting ... ok
[INFO] [stdout] test upcasting ... 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" "c4f10198eaa854ccd8ae435673af8b9849334db55958e4cc1548c612d15a3644", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4f10198eaa854ccd8ae435673af8b9849334db55958e4cc1548c612d15a3644", kill_on_drop: false }`
[INFO] [stdout] c4f10198eaa854ccd8ae435673af8b9849334db55958e4cc1548c612d15a3644