[INFO] fetching crate nerdondon-hopscotch 2.7.0...
[INFO] testing nerdondon-hopscotch-2.7.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate nerdondon-hopscotch 2.7.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate nerdondon-hopscotch 2.7.0
[INFO] finished tweaking crates.io crate nerdondon-hopscotch 2.7.0
[INFO] tweaked toml for crates.io crate nerdondon-hopscotch 2.7.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate nerdondon-hopscotch 2.7.0 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]     Updating crates.io index
[INFO] [stderr]      Locking 21 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.1)
[INFO] [stderr]       Adding rand_distr v0.4.3 (available: v0.5.1)
[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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 0ec35fd6d5c931e06fbe81099fb4f919d52359a5f739a5b50311e0784bf3a5c5
[INFO] running `Command { std: "docker" "start" "-a" "0ec35fd6d5c931e06fbe81099fb4f919d52359a5f739a5b50311e0784bf3a5c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0ec35fd6d5c931e06fbe81099fb4f919d52359a5f739a5b50311e0784bf3a5c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ec35fd6d5c931e06fbe81099fb4f919d52359a5f739a5b50311e0784bf3a5c5", kill_on_drop: false }`
[INFO] [stdout] 0ec35fd6d5c931e06fbe81099fb4f919d52359a5f739a5b50311e0784bf3a5c5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 17093dbb009e2a62f967d7c3a6ae1ea0c91cd090a1a05e5743bd2fd9a8125ba7
[INFO] running `Command { std: "docker" "start" "-a" "17093dbb009e2a62f967d7c3a6ae1ea0c91cd090a1a05e5743bd2fd9a8125ba7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]    Compiling cfg-if v1.0.1
[INFO] [stderr]    Compiling libm v0.2.15
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling rand_distr v0.4.3
[INFO] [stderr]    Compiling nerdondon-hopscotch v2.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/skiplist.rs:105:13
[INFO] [stdout]     |
[INFO] [stdout] 105 |             /// The number of elements in the skip list.
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 106 |             length: 0,
[INFO] [stdout]     |             --------- rustdoc does not generate documentation for expression fields
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.15s
[INFO] running `Command { std: "docker" "inspect" "17093dbb009e2a62f967d7c3a6ae1ea0c91cd090a1a05e5743bd2fd9a8125ba7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17093dbb009e2a62f967d7c3a6ae1ea0c91cd090a1a05e5743bd2fd9a8125ba7", kill_on_drop: false }`
[INFO] [stdout] 17093dbb009e2a62f967d7c3a6ae1ea0c91cd090a1a05e5743bd2fd9a8125ba7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 96ca2d5a5d5c5c0dbbc5340e3926f8315b0ca903e3d3a536d2c823dff23afb52
[INFO] running `Command { std: "docker" "start" "-a" "96ca2d5a5d5c5c0dbbc5340e3926f8315b0ca903e3d3a536d2c823dff23afb52", kill_on_drop: false }`
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling yansi v1.0.1
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/skiplist.rs:105:13
[INFO] [stdout]     |
[INFO] [stdout] 105 |             /// The number of elements in the skip list.
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 106 |             length: 0,
[INFO] [stdout]     |             --------- rustdoc does not generate documentation for expression fields
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling pretty_assertions v1.4.1
[INFO] [stderr]    Compiling nerdondon-hopscotch v2.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]    --> src/skiplist.rs:105:13
[INFO] [stdout]     |
[INFO] [stdout] 105 |             /// The number of elements in the skip list.
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 106 |             length: 0,
[INFO] [stdout]     |             --------- rustdoc does not generate documentation for expression fields
[INFO] [stdout]     |
[INFO] [stdout]     = help: use `//` for a plain comment
[INFO] [stdout]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.09s
[INFO] running `Command { std: "docker" "inspect" "96ca2d5a5d5c5c0dbbc5340e3926f8315b0ca903e3d3a536d2c823dff23afb52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96ca2d5a5d5c5c0dbbc5340e3926f8315b0ca903e3d3a536d2c823dff23afb52", kill_on_drop: false }`
[INFO] [stdout] 96ca2d5a5d5c5c0dbbc5340e3926f8315b0ca903e3d3a536d2c823dff23afb52
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 2e1c363971fd9882756a17a2e5edafc3c1e97e11064d030658f47fee01c6c54c
[INFO] running `Command { std: "docker" "start" "-a" "2e1c363971fd9882756a17a2e5edafc3c1e97e11064d030658f47fee01c6c54c", kill_on_drop: false }`
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]    --> src/skiplist.rs:105:13
[INFO] [stderr]     |
[INFO] [stderr] 105 |             /// The number of elements in the skip list.
[INFO] [stderr]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 106 |             length: 0,
[INFO] [stderr]     |             --------- rustdoc does not generate documentation for expression fields
[INFO] [stderr]     |
[INFO] [stderr]     = help: use `//` for a plain comment
[INFO] [stderr]     = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `nerdondon-hopscotch` (lib) generated 1 warning
[INFO] [stderr] warning: `nerdondon-hopscotch` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/nerdondon_hopscotch-7b1f45535d1bbe89)
[INFO] [stdout] 
[INFO] [stdout] running 26 tests
[INFO] [stdout] test skiplist::tests::entries_returns_a_vec_with_the_key_value_pairs_of_elements ... ok
[INFO] [stdout] test skiplist::tests::get_an_element_at_the_head ... ok
[INFO] [stdout] test skiplist::tests::get_an_element_at_the_tail ... ok
[INFO] [stdout] test skiplist::tests::get_an_element_in_the_middle ... ok
[INFO] [stdout] test skiplist::tests::insert_can_add_an_element_between_existing_elements ... ok
[INFO] [stdout] test skiplist::tests::insert_can_add_an_element_before_an_existing_element ... ok
[INFO] [stdout] test skiplist::tests::remove_can_remove_an_item_from_the_back_of_the_skip_list ... ok
[INFO] [stdout] test skiplist::tests::remove_can_remove_all_elements_from_the_skip_list ... ok
[INFO] [stdout] test skiplist::tests::remove_can_remove_an_item_from_the_front_of_the_skip_list ... ok
[INFO] [stdout] test skiplist::tests::remove_can_remove_an_item_from_the_middle_of_the_skip_list ... ok
[INFO] [stdout] test skiplist::tests::with_a_non_empty_skiplist_find_greater_or_equal_returns_correct_responses ... ok
[INFO] [stdout] test skiplist::tests::with_a_non_empty_skiplist_find_less_than_returns_correct_responses ... ok
[INFO] [stdout] test skiplist::tests::get_approx_mem_usage_provides_decent_estimates ... ok
[INFO] [stdout] test skiplist::tests::with_a_non_empty_skiplist_first_returns_references_to_the_first_key_value_pair ... ok
[INFO] [stdout] test skiplist::tests::insert_can_add_an_element_after_an_existing_element ... ok
[INFO] [stdout] test skiplist::tests::with_an_empty_skiplist_first_returns_none ... ok
[INFO] [stdout] test skiplist::tests::with_a_non_empty_skiplist_is_empty_returns_false ... ok
[INFO] [stdout] test skiplist::tests::with_a_non_empty_skiplist_getting_a_non_existent_element_returns_none ... ok
[INFO] [stdout] test skiplist::tests::with_an_empty_skiplist_get_returns_none ... ok
[INFO] [stdout] test skiplist::tests::with_an_empty_skiplist_is_empty_returns_true ... ok
[INFO] [stdout] test skiplist::tests::with_an_empty_skiplist_last_returns_none ... ok
[INFO] [stdout] test skiplist::tests::with_an_empty_skiplist_len_returns_zero ... ok
[INFO] [stdout] test skiplist::tests::with_an_empty_skiplist_remove_does_nothing ... ok
[INFO] [stdout] test skiplist::tests::with_an_empty_skiplist_insert_can_add_an_element ... ok
[INFO] [stdout] test skiplist::tests::with_a_non_empty_skiplist_last_returns_references_to_the_last_key_value_pair ... ok
[INFO] [stdout] test skiplist::tests::with_an_empty_skiplist_collect_returns_an_empty_vec ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 26 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2e1c363971fd9882756a17a2e5edafc3c1e97e11064d030658f47fee01c6c54c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e1c363971fd9882756a17a2e5edafc3c1e97e11064d030658f47fee01c6c54c", kill_on_drop: false }`
[INFO] [stdout] 2e1c363971fd9882756a17a2e5edafc3c1e97e11064d030658f47fee01c6c54c