[INFO] fetching crate singleton-trait 0.4.0...
[INFO] testing singleton-trait-0.4.0 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_getrandom_patch_0
[INFO] extracting crate singleton-trait 0.4.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate singleton-trait 0.4.0
[INFO] finished tweaking crates.io crate singleton-trait 0.4.0
[INFO] tweaked toml for crates.io crate singleton-trait 0.4.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate singleton-trait 0.4.0 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 singleton-trait 0.4.0 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] 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] 4c5641bab454f17b27f5857ed76fbfcbdd9d201e983bbc65ba9ffdc2c145f24e
[INFO] running `Command { std: "docker" "start" "-a" "4c5641bab454f17b27f5857ed76fbfcbdd9d201e983bbc65ba9ffdc2c145f24e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c5641bab454f17b27f5857ed76fbfcbdd9d201e983bbc65ba9ffdc2c145f24e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c5641bab454f17b27f5857ed76fbfcbdd9d201e983bbc65ba9ffdc2c145f24e", kill_on_drop: false }`
[INFO] [stdout] 4c5641bab454f17b27f5857ed76fbfcbdd9d201e983bbc65ba9ffdc2c145f24e
[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] a43b66a75a111a401426863c877315f78c62af1bc43dbc12c63f837b7a38344c
[INFO] running `Command { std: "docker" "start" "-a" "a43b66a75a111a401426863c877315f78c62af1bc43dbc12c63f837b7a38344c", kill_on_drop: false }`
[INFO] [stderr]    Compiling singleton-trait v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "a43b66a75a111a401426863c877315f78c62af1bc43dbc12c63f837b7a38344c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a43b66a75a111a401426863c877315f78c62af1bc43dbc12c63f837b7a38344c", kill_on_drop: false }`
[INFO] [stdout] a43b66a75a111a401426863c877315f78c62af1bc43dbc12c63f837b7a38344c
[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] 7fa33a787ca7222c5a1164ed12f612891f67dc858cf8229eb3f823bd0d6b9437
[INFO] running `Command { std: "docker" "start" "-a" "7fa33a787ca7222c5a1164ed12f612891f67dc858cf8229eb3f823bd0d6b9437", kill_on_drop: false }`
[INFO] [stderr]    Compiling singleton-trait v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]    --> src/lib.rs:448:61
[INFO] [stdout]     |
[INFO] [stdout] 448 |         struct Guard<'a>(PhantomData<fn(&'a ()) -> &'a ()>, &'a NonCopy);
[INFO] [stdout]     |                ----- field in this struct                   ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider removing this field
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "7fa33a787ca7222c5a1164ed12f612891f67dc858cf8229eb3f823bd0d6b9437", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fa33a787ca7222c5a1164ed12f612891f67dc858cf8229eb3f823bd0d6b9437", kill_on_drop: false }`
[INFO] [stdout] 7fa33a787ca7222c5a1164ed12f612891f67dc858cf8229eb3f823bd0d6b9437
[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] 78e81877ea3e690335dd2cefc245d8acacdbebba1644c8c489f7ec93549f53c1
[INFO] running `Command { std: "docker" "start" "-a" "78e81877ea3e690335dd2cefc245d8acacdbebba1644c8c489f7ec93549f53c1", kill_on_drop: false }`
[INFO] [stderr] warning: field `1` is never read
[INFO] [stderr]    --> src/lib.rs:448:61
[INFO] [stderr]     |
[INFO] [stderr] 448 |         struct Guard<'a>(PhantomData<fn(&'a ()) -> &'a ()>, &'a NonCopy);
[INFO] [stderr]     |                ----- field in this struct                   ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider removing this field
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `singleton-trait` (lib test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/singleton_trait-d0e5e892a1596514)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::test_impls ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "78e81877ea3e690335dd2cefc245d8acacdbebba1644c8c489f7ec93549f53c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78e81877ea3e690335dd2cefc245d8acacdbebba1644c8c489f7ec93549f53c1", kill_on_drop: false }`
[INFO] [stdout] 78e81877ea3e690335dd2cefc245d8acacdbebba1644c8c489f7ec93549f53c1