[INFO] fetching crate c2-sys 0.2.0...
[INFO] testing c2-sys-0.2.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate c2-sys 0.2.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate c2-sys 0.2.0
[INFO] finished tweaking crates.io crate c2-sys 0.2.0
[INFO] tweaked toml for crates.io crate c2-sys 0.2.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate c2-sys 0.2.0 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] e5b843220dfc8e15b8e12e36b62c6558412ebc8f757a3b3d4eba648b17f1ced4
[INFO] running `Command { std: "docker" "start" "-a" "e5b843220dfc8e15b8e12e36b62c6558412ebc8f757a3b3d4eba648b17f1ced4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e5b843220dfc8e15b8e12e36b62c6558412ebc8f757a3b3d4eba648b17f1ced4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5b843220dfc8e15b8e12e36b62c6558412ebc8f757a3b3d4eba648b17f1ced4", kill_on_drop: false }`
[INFO] [stdout] e5b843220dfc8e15b8e12e36b62c6558412ebc8f757a3b3d4eba648b17f1ced4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 2cfbb8ab23871321c14c2d0ffe5ce0e50cfd0d16841523466828ccb0cdaf1bed
[INFO] running `Command { std: "docker" "start" "-a" "2cfbb8ab23871321c14c2d0ffe5ce0e50cfd0d16841523466828ccb0cdaf1bed", kill_on_drop: false }`
[INFO] [stderr]    Compiling c2-sys v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `d` is never read
[INFO] [stdout]     --> src/lib.rs:1316:5
[INFO] [stdout]      |
[INFO] [stdout] 1312 | struct c2Simplex {
[INFO] [stdout]      |        --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 1316 |     d: c2sv,
[INFO] [stdout]      |     ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `c2Simplex` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "2cfbb8ab23871321c14c2d0ffe5ce0e50cfd0d16841523466828ccb0cdaf1bed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cfbb8ab23871321c14c2d0ffe5ce0e50cfd0d16841523466828ccb0cdaf1bed", kill_on_drop: false }`
[INFO] [stdout] 2cfbb8ab23871321c14c2d0ffe5ce0e50cfd0d16841523466828ccb0cdaf1bed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 0f50ed9be45ffcfa10682d72df6681a9d5f4de1a7a03162cf407147695007f5f
[INFO] running `Command { std: "docker" "start" "-a" "0f50ed9be45ffcfa10682d72df6681a9d5f4de1a7a03162cf407147695007f5f", kill_on_drop: false }`
[INFO] [stdout] warning: field `d` is never read
[INFO] [stdout]     --> src/lib.rs:1316:5
[INFO] [stdout]      |
[INFO] [stdout] 1312 | struct c2Simplex {
[INFO] [stdout]      |        --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 1316 |     d: c2sv,
[INFO] [stdout]      |     ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `c2Simplex` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling c2-sys v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `d` is never read
[INFO] [stdout]     --> src/lib.rs:1316:5
[INFO] [stdout]      |
[INFO] [stdout] 1312 | struct c2Simplex {
[INFO] [stdout]      |        --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 1316 |     d: c2sv,
[INFO] [stdout]      |     ^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `c2Simplex` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "0f50ed9be45ffcfa10682d72df6681a9d5f4de1a7a03162cf407147695007f5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f50ed9be45ffcfa10682d72df6681a9d5f4de1a7a03162cf407147695007f5f", kill_on_drop: false }`
[INFO] [stdout] 0f50ed9be45ffcfa10682d72df6681a9d5f4de1a7a03162cf407147695007f5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 55a669c7030c1416a67584a5cf5faf0b7a1d15483d3331fd4557772354341fca
[INFO] running `Command { std: "docker" "start" "-a" "55a669c7030c1416a67584a5cf5faf0b7a1d15483d3331fd4557772354341fca", kill_on_drop: false }`
[INFO] [stderr] warning: field `d` is never read
[INFO] [stderr]     --> src/lib.rs:1316:5
[INFO] [stderr]      |
[INFO] [stderr] 1312 | struct c2Simplex {
[INFO] [stderr]      |        --------- field in this struct
[INFO] [stderr] ...
[INFO] [stderr] 1316 |     d: c2sv,
[INFO] [stderr]      |     ^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `c2Simplex` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]      = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `c2-sys` (lib) generated 1 warning
[INFO] [stderr] warning: `c2-sys` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/c2_sys-daf71c331bcea71d)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "55a669c7030c1416a67584a5cf5faf0b7a1d15483d3331fd4557772354341fca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55a669c7030c1416a67584a5cf5faf0b7a1d15483d3331fd4557772354341fca", kill_on_drop: false }`
[INFO] [stdout] 55a669c7030c1416a67584a5cf5faf0b7a1d15483d3331fd4557772354341fca