[INFO] fetching crate scrummage 0.1.1...
[INFO] testing scrummage-0.1.1 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate scrummage 0.1.1 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate scrummage 0.1.1
[INFO] finished tweaking crates.io crate scrummage 0.1.1
[INFO] tweaked toml for crates.io crate scrummage 0.1.1 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate scrummage 0.1.1 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] crate crates.io crate scrummage 0.1.1 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]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.73
[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] 76d0fc28deac5582f0f8f6525c6ab56ddfdfd98b221d28d58f009798acb95906
[INFO] running `Command { std: "docker" "start" "-a" "76d0fc28deac5582f0f8f6525c6ab56ddfdfd98b221d28d58f009798acb95906", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76d0fc28deac5582f0f8f6525c6ab56ddfdfd98b221d28d58f009798acb95906", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76d0fc28deac5582f0f8f6525c6ab56ddfdfd98b221d28d58f009798acb95906", kill_on_drop: false }`
[INFO] [stdout] 76d0fc28deac5582f0f8f6525c6ab56ddfdfd98b221d28d58f009798acb95906
[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] aa663ff5cb7b9cd38345a7c35819a8b891893d76b7ddc6fb7f22b3c05a28e0f9
[INFO] running `Command { std: "docker" "start" "-a" "aa663ff5cb7b9cd38345a7c35819a8b891893d76b7ddc6fb7f22b3c05a28e0f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.73
[INFO] [stderr]    Compiling scrummage v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/lib.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         #[doc = $x]
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 27 |         extern {}
[INFO] [stdout]    |         --------- rustdoc does not generate documentation for extern blocks
[INFO] [stdout] ...
[INFO] [stdout] 30 | doctest!(include_str!("../README.md"));
[INFO] [stdout]    | -------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `doctest` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/lib.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         extern {}
[INFO] [stdout]    |         ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] ...
[INFO] [stdout] 30 | doctest!(include_str!("../README.md"));
[INFO] [stdout]    | -------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `doctest` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.67s
[INFO] running `Command { std: "docker" "inspect" "aa663ff5cb7b9cd38345a7c35819a8b891893d76b7ddc6fb7f22b3c05a28e0f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa663ff5cb7b9cd38345a7c35819a8b891893d76b7ddc6fb7f22b3c05a28e0f9", kill_on_drop: false }`
[INFO] [stdout] aa663ff5cb7b9cd38345a7c35819a8b891893d76b7ddc6fb7f22b3c05a28e0f9
[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] f009ab3703c8ad38ffeaf9f6306ef14fb7e922e601c420974025fe2de044d928
[INFO] running `Command { std: "docker" "start" "-a" "f009ab3703c8ad38ffeaf9f6306ef14fb7e922e601c420974025fe2de044d928", kill_on_drop: false }`
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/lib.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         #[doc = $x]
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 27 |         extern {}
[INFO] [stdout]    |         --------- rustdoc does not generate documentation for extern blocks
[INFO] [stdout] ...
[INFO] [stdout] 30 | doctest!(include_str!("../README.md"));
[INFO] [stdout]    | -------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `doctest` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/lib.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         extern {}
[INFO] [stdout]    |         ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] ...
[INFO] [stdout] 30 | doctest!(include_str!("../README.md"));
[INFO] [stdout]    | -------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `doctest` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling scrummage v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]   --> src/lib.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 26 |         #[doc = $x]
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 27 |         extern {}
[INFO] [stdout]    |         --------- rustdoc does not generate documentation for extern blocks
[INFO] [stdout] ...
[INFO] [stdout] 30 | doctest!(include_str!("../README.md"));
[INFO] [stdout]    | -------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = help: use `//` for a plain comment
[INFO] [stdout]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `doctest` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/lib.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |         extern {}
[INFO] [stdout]    |         ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] ...
[INFO] [stdout] 30 | doctest!(include_str!("../README.md"));
[INFO] [stdout]    | -------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `doctest` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.71s
[INFO] running `Command { std: "docker" "inspect" "f009ab3703c8ad38ffeaf9f6306ef14fb7e922e601c420974025fe2de044d928", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f009ab3703c8ad38ffeaf9f6306ef14fb7e922e601c420974025fe2de044d928", kill_on_drop: false }`
[INFO] [stdout] f009ab3703c8ad38ffeaf9f6306ef14fb7e922e601c420974025fe2de044d928
[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] 82ca39dcea3ccd8df39a2e96c866a743c6552c01fb3cdc579f97f04aefab460a
[INFO] running `Command { std: "docker" "start" "-a" "82ca39dcea3ccd8df39a2e96c866a743c6552c01fb3cdc579f97f04aefab460a", kill_on_drop: false }`
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]   --> src/lib.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |         #[doc = $x]
[INFO] [stderr]    |         ^^^^^^^^^^^
[INFO] [stderr] 27 |         extern {}
[INFO] [stderr]    |         --------- rustdoc does not generate documentation for extern blocks
[INFO] [stderr] ...
[INFO] [stderr] 30 | doctest!(include_str!("../README.md"));
[INFO] [stderr]    | -------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = help: use `//` for a plain comment
[INFO] [stderr]    = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `doctest` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stderr]   --> src/lib.rs:27:9
[INFO] [stderr]    |
[INFO] [stderr] 27 |         extern {}
[INFO] [stderr]    |         ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stderr] ...
[INFO] [stderr] 30 | doctest!(include_str!("../README.md"));
[INFO] [stderr]    | -------------------------------------- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(missing_abi)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `doctest` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `scrummage` (lib) generated 2 warnings (run `cargo fix --lib -p scrummage` to apply 1 suggestion)
[INFO] [stderr] warning: `scrummage` (lib test) generated 2 warnings (2 duplicates)
[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/scrummage-700a1fcf7aa42368)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/nice.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/nice-30c488f2c6df027d)
[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] [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" "82ca39dcea3ccd8df39a2e96c866a743c6552c01fb3cdc579f97f04aefab460a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "82ca39dcea3ccd8df39a2e96c866a743c6552c01fb3cdc579f97f04aefab460a", kill_on_drop: false }`
[INFO] [stdout] 82ca39dcea3ccd8df39a2e96c866a743c6552c01fb3cdc579f97f04aefab460a