[INFO] fetching crate alternating-iter 0.3.1...
[INFO] testing alternating-iter-0.3.1 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate alternating-iter 0.3.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate alternating-iter 0.3.1
[INFO] finished tweaking crates.io crate alternating-iter 0.3.1
[INFO] tweaked toml for crates.io crate alternating-iter 0.3.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate alternating-iter 0.3.1 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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] d29aec37dfc10ac99f0767c166501472994cfbc3463783b9483d2c8180e43f38
[INFO] running `Command { std: "docker" "start" "-a" "d29aec37dfc10ac99f0767c166501472994cfbc3463783b9483d2c8180e43f38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d29aec37dfc10ac99f0767c166501472994cfbc3463783b9483d2c8180e43f38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d29aec37dfc10ac99f0767c166501472994cfbc3463783b9483d2c8180e43f38", kill_on_drop: false }`
[INFO] [stdout] d29aec37dfc10ac99f0767c166501472994cfbc3463783b9483d2c8180e43f38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 0297c1a2a32b68258e2f195b1514c469c20713e72c7b7d80a8efcace53d3fb17
[INFO] running `Command { std: "docker" "start" "-a" "0297c1a2a32b68258e2f195b1514c469c20713e72c7b7d80a8efcace53d3fb17", kill_on_drop: false }`
[INFO] [stderr]    Compiling alternating-iter v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::iter`
[INFO] [stdout]  --> src/alternating.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::iter;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "0297c1a2a32b68258e2f195b1514c469c20713e72c7b7d80a8efcace53d3fb17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0297c1a2a32b68258e2f195b1514c469c20713e72c7b7d80a8efcace53d3fb17", kill_on_drop: false }`
[INFO] [stdout] 0297c1a2a32b68258e2f195b1514c469c20713e72c7b7d80a8efcace53d3fb17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 088683505caa2e723df0048695ae377fc0bea15b8738633e880a0b7b486b0c7d
[INFO] running `Command { std: "docker" "start" "-a" "088683505caa2e723df0048695ae377fc0bea15b8738633e880a0b7b486b0c7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling alternating-iter v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::iter`
[INFO] [stdout]  --> src/alternating.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::iter;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "088683505caa2e723df0048695ae377fc0bea15b8738633e880a0b7b486b0c7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "088683505caa2e723df0048695ae377fc0bea15b8738633e880a0b7b486b0c7d", kill_on_drop: false }`
[INFO] [stdout] 088683505caa2e723df0048695ae377fc0bea15b8738633e880a0b7b486b0c7d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] da1db6dc590c9c78b8b0977c3f6bc6b478434e6db6e893b3838fa5ed3a8c5500
[INFO] running `Command { std: "docker" "start" "-a" "da1db6dc590c9c78b8b0977c3f6bc6b478434e6db6e893b3838fa5ed3a8c5500", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `core::iter`
[INFO] [stderr]  --> src/alternating.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::iter;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `alternating-iter` (lib) generated 1 warning (run `cargo fix --lib -p alternating-iter` to apply 1 suggestion)
[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/alternating_iter-db44e1feb200afe4)
[INFO] [stdout] 
[INFO] [stdout] running 40 tests
[INFO] [stdout] test alternating::tests::different_lengths_1more ... ok
[INFO] [stdout] test alternating::tests::different_lengths_2more ... ok
[INFO] [stdout] test alternating::tests::same_iterator ... ok
[INFO] [stdout] test alternating::tests::one_empty_iterator ... ok
[INFO] [stdout] test alternating::tests::empty_iterators ... ok
[INFO] [stdout] test alternating::tests::same_lengths ... ok
[INFO] [stdout] test alternating::tests::size_hint_bound_half_max_left ... ok
[INFO] [stdout] test alternating::tests::size_hint_bound_half_max_right ... ok
[INFO] [stdout] test alternating::tests::size_hint_unbounded_left ... ok
[INFO] [stdout] test alternating_all::tests::different_lengths ... ok
[INFO] [stdout] test alternating::tests::size_hint_accurate ... ok
[INFO] [stdout] test alternating::tests::size_hint ... ok
[INFO] [stdout] test alternating_all::tests::empty_iterators ... ok
[INFO] [stdout] test alternating_all::tests::equal_lengths ... ok
[INFO] [stdout] test alternating::tests::size_hint_both_unbounded ... ok
[INFO] [stdout] test alternating_all::tests::one_empty_iterator ... ok
[INFO] [stdout] test alternating_all::tests::same_iterator ... ok
[INFO] [stdout] test alternating_all::tests::size_hint_accurate ... ok
[INFO] [stdout] test alternating_all::tests::size_hint ... ok
[INFO] [stdout] test alternating_all::tests::size_hint_bound_exactly_max ... ok
[INFO] [stdout] test alternating_all::tests::size_hint_bound_exceed_max ... ok
[INFO] [stdout] test alternating_all::tests::size_hint_unbounded_right ... ok
[INFO] [stdout] test alternating_no_remainder::tests::different_lengths_2more ... ok
[INFO] [stdout] test alternating::tests::size_hint_unbounded_right ... ok
[INFO] [stdout] test alternating_no_remainder::tests::empty_iterators ... ok
[INFO] [stdout] test alternating_no_remainder::tests::is_fused ... ok
[INFO] [stdout] test alternating_no_remainder::tests::same_lengths ... ok
[INFO] [stdout] test alternating_no_remainder::tests::size_hint_accurate ... ok
[INFO] [stdout] test alternating_no_remainder::tests::same_iterator ... ok
[INFO] [stdout] test alternating_no_remainder::tests::one_empty_iterator ... ok
[INFO] [stdout] test alternating_no_remainder::tests::size_hint ... ok
[INFO] [stdout] test alternating_no_remainder::tests::size_hint_both_unbounded ... ok
[INFO] [stdout] test alternating_no_remainder::tests::size_hint_bound_half_max_left ... ok
[INFO] [stdout] test alternating_all::tests::size_hint_unbounded_left ... ok
[INFO] [stdout] test alternating_no_remainder::tests::size_hint_bound_half_max_right ... ok
[INFO] [stdout] test alternating_no_remainder::tests::different_lengths_1more ... ok
[INFO] [stdout] test alternating_no_remainder::tests::size_hint_unbounded_left ... ok
[INFO] [stdout] test alternating_no_remainder::tests::size_hint_unbounded_right ... ok
[INFO] [stdout] test alternating::tests::size_hint_bound_exceed_max ... ok
[INFO] [stdout] test alternating_no_remainder::tests::size_hint_bound_exceed_max ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 40 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "da1db6dc590c9c78b8b0977c3f6bc6b478434e6db6e893b3838fa5ed3a8c5500", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da1db6dc590c9c78b8b0977c3f6bc6b478434e6db6e893b3838fa5ed3a8c5500", kill_on_drop: false }`
[INFO] [stdout] da1db6dc590c9c78b8b0977c3f6bc6b478434e6db6e893b3838fa5ed3a8c5500