[INFO] fetching crate ezlib 0.1.0...
[INFO] testing ezlib-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 ezlib 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate ezlib 0.1.0
[INFO] finished tweaking crates.io crate ezlib 0.1.0
[INFO] tweaked toml for crates.io crate ezlib 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ezlib 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] crate crates.io crate ezlib 0.1.0 already has a lockfile, it will not be regenerated
[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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ezcbor v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] ca0ef29d2204438f7a557cce788748dee131fe5e1095c0de5cb84b84bcb58e42
[INFO] running `Command { std: "docker" "start" "-a" "ca0ef29d2204438f7a557cce788748dee131fe5e1095c0de5cb84b84bcb58e42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca0ef29d2204438f7a557cce788748dee131fe5e1095c0de5cb84b84bcb58e42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca0ef29d2204438f7a557cce788748dee131fe5e1095c0de5cb84b84bcb58e42", kill_on_drop: false }`
[INFO] [stdout] ca0ef29d2204438f7a557cce788748dee131fe5e1095c0de5cb84b84bcb58e42
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 7af238aa81ae57266d3aa5fcad7727d49bab685f5aa736dbd7ab4f85906b619d
[INFO] running `Command { std: "docker" "start" "-a" "7af238aa81ae57266d3aa5fcad7727d49bab685f5aa736dbd7ab4f85906b619d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling ezcbor v0.1.4
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling ezlib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `key_index`
[INFO] [stdout]     --> src/lib.rs:1731:13
[INFO] [stdout]      |
[INFO] [stdout] 1731 |         let key_index = leaf.keys.find(key).unwrap();
[INFO] [stdout]      |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_index`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.54s
[INFO] running `Command { std: "docker" "inspect" "7af238aa81ae57266d3aa5fcad7727d49bab685f5aa736dbd7ab4f85906b619d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7af238aa81ae57266d3aa5fcad7727d49bab685f5aa736dbd7ab4f85906b619d", kill_on_drop: false }`
[INFO] [stdout] 7af238aa81ae57266d3aa5fcad7727d49bab685f5aa736dbd7ab4f85906b619d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 4d7fb837fc5ff514dbfc56bd2734883b12983999d11db45e82a7fd39d38f5fce
[INFO] running `Command { std: "docker" "start" "-a" "4d7fb837fc5ff514dbfc56bd2734883b12983999d11db45e82a7fd39d38f5fce", kill_on_drop: false }`
[INFO] [stderr]    Compiling ezlib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `key_index`
[INFO] [stdout]     --> src/lib.rs:1731:13
[INFO] [stdout]      |
[INFO] [stdout] 1731 |         let key_index = leaf.keys.find(key).unwrap();
[INFO] [stdout]      |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_index`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key_index`
[INFO] [stdout]     --> src/lib.rs:1731:13
[INFO] [stdout]      |
[INFO] [stdout] 1731 |         let key_index = leaf.keys.find(key).unwrap();
[INFO] [stdout]      |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_index`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.39s
[INFO] running `Command { std: "docker" "inspect" "4d7fb837fc5ff514dbfc56bd2734883b12983999d11db45e82a7fd39d38f5fce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d7fb837fc5ff514dbfc56bd2734883b12983999d11db45e82a7fd39d38f5fce", kill_on_drop: false }`
[INFO] [stdout] 4d7fb837fc5ff514dbfc56bd2734883b12983999d11db45e82a7fd39d38f5fce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 88b24d41c3e8cb263d1c3b35409af5793c002a7e56f4053825d77caa3dfdcf6b
[INFO] running `Command { std: "docker" "start" "-a" "88b24d41c3e8cb263d1c3b35409af5793c002a7e56f4053825d77caa3dfdcf6b", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `key_index`
[INFO] [stderr]     --> src/lib.rs:1731:13
[INFO] [stderr]      |
[INFO] [stderr] 1731 |         let key_index = leaf.keys.find(key).unwrap();
[INFO] [stderr]      |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_key_index`
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `ezlib` (lib) generated 1 warning
[INFO] [stderr] warning: `ezlib` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/ezlib-d5a02d5954c4745e)
[INFO] [stdout] 
[INFO] [stdout] running 11 tests
[INFO] [stdout] test tests::test_bytes_to_str ... ok
[INFO] [stdout] test tests::test_mean ... ok
[INFO] [stdout] test tests::test_median ... ok
[INFO] [stdout] test tests::test_sum_f32_slice ... ok
[INFO] [stdout] test tests::test_fixed_list ... ok
[INFO] [stdout] test tests::test_mode ... ok
[INFO] [stdout] test tests::test_stdev ... ok
[INFO] [stdout] test tests::test_tests ... ok
[INFO] [stdout] test tests::test_encode_hex ... ok
[INFO] [stdout] test tests::test_sum_i32_slice ... ok
[INFO] [stdout] test tests::test_free_list_vec ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 11 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "88b24d41c3e8cb263d1c3b35409af5793c002a7e56f4053825d77caa3dfdcf6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88b24d41c3e8cb263d1c3b35409af5793c002a7e56f4053825d77caa3dfdcf6b", kill_on_drop: false }`
[INFO] [stdout] 88b24d41c3e8cb263d1c3b35409af5793c002a7e56f4053825d77caa3dfdcf6b