[INFO] fetching crate head-tail-iter 1.0.1...
[INFO] testing head-tail-iter-1.0.1 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate head-tail-iter 1.0.1 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate head-tail-iter 1.0.1
[INFO] finished tweaking crates.io crate head-tail-iter 1.0.1
[INFO] tweaked toml for crates.io crate head-tail-iter 1.0.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate head-tail-iter 1.0.1 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-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] a345fd93e51e317b8969f6ece5d6cfff00ae032898a99974a82b95aa9d0056ce
[INFO] running `Command { std: "docker" "start" "-a" "a345fd93e51e317b8969f6ece5d6cfff00ae032898a99974a82b95aa9d0056ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a345fd93e51e317b8969f6ece5d6cfff00ae032898a99974a82b95aa9d0056ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a345fd93e51e317b8969f6ece5d6cfff00ae032898a99974a82b95aa9d0056ce", kill_on_drop: false }`
[INFO] [stdout] a345fd93e51e317b8969f6ece5d6cfff00ae032898a99974a82b95aa9d0056ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 83d526b3f1102b2f149a24af7ece4d12a2fc6920623801b14dab7e0d2270a111
[INFO] running `Command { std: "docker" "start" "-a" "83d526b3f1102b2f149a24af7ece4d12a2fc6920623801b14dab7e0d2270a111", kill_on_drop: false }`
[INFO] [stderr]    Compiling head-tail-iter v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "83d526b3f1102b2f149a24af7ece4d12a2fc6920623801b14dab7e0d2270a111", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83d526b3f1102b2f149a24af7ece4d12a2fc6920623801b14dab7e0d2270a111", kill_on_drop: false }`
[INFO] [stdout] 83d526b3f1102b2f149a24af7ece4d12a2fc6920623801b14dab7e0d2270a111
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] f2a427f290ae8bc39b3fdee580d7717223dc35ca8ad53c02bc0fc2f7f3dbccbc
[INFO] running `Command { std: "docker" "start" "-a" "f2a427f290ae8bc39b3fdee580d7717223dc35ca8ad53c02bc0fc2f7f3dbccbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling head-tail-iter v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "f2a427f290ae8bc39b3fdee580d7717223dc35ca8ad53c02bc0fc2f7f3dbccbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2a427f290ae8bc39b3fdee580d7717223dc35ca8ad53c02bc0fc2f7f3dbccbc", kill_on_drop: false }`
[INFO] [stdout] f2a427f290ae8bc39b3fdee580d7717223dc35ca8ad53c02bc0fc2f7f3dbccbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 68f82035f1e86d600c9991e2fbc76e394b9a8c33b1cfb2d7bd962b15251d52d2
[INFO] running `Command { std: "docker" "start" "-a" "68f82035f1e86d600c9991e2fbc76e394b9a8c33b1cfb2d7bd962b15251d52d2", kill_on_drop: false }`
[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/head_tail_iter-cb7cf8fd0d6bcd70)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::count ... ok
[INFO] [stdout] test tests::from ... ok
[INFO] [stdout] test tests::fused ... ok
[INFO] [stdout] test tests::head_tail_pairs ... ok
[INFO] [stdout] test tests::len ... ok
[INFO] [stdout] test tests::size_hint_and_exact_size ... ok
[INFO] [stdout] test tests::nth ... ok
[INFO] [stdout] test tests::last ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 8 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "68f82035f1e86d600c9991e2fbc76e394b9a8c33b1cfb2d7bd962b15251d52d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68f82035f1e86d600c9991e2fbc76e394b9a8c33b1cfb2d7bd962b15251d52d2", kill_on_drop: false }`
[INFO] [stdout] 68f82035f1e86d600c9991e2fbc76e394b9a8c33b1cfb2d7bd962b15251d52d2