[INFO] fetching crate fmt-derive 0.1.2...
[INFO] testing fmt-derive-0.1.2 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate fmt-derive 0.1.2 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate fmt-derive 0.1.2
[INFO] finished tweaking crates.io crate fmt-derive 0.1.2
[INFO] tweaked toml for crates.io crate fmt-derive 0.1.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate fmt-derive 0.1.2 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 20 packages to latest compatible versions
[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 fmt-derive-proc v0.1.2
[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] eb9ac85377216de4af0527d5093dad9d197d6f65560011dcc32f265eb23cdb44
[INFO] running `Command { std: "docker" "start" "-a" "eb9ac85377216de4af0527d5093dad9d197d6f65560011dcc32f265eb23cdb44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eb9ac85377216de4af0527d5093dad9d197d6f65560011dcc32f265eb23cdb44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb9ac85377216de4af0527d5093dad9d197d6f65560011dcc32f265eb23cdb44", kill_on_drop: false }`
[INFO] [stdout] eb9ac85377216de4af0527d5093dad9d197d6f65560011dcc32f265eb23cdb44
[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] d9d39f0462a2a06976f2cad91f7e6e5786fdd06fc092084fa6b76a73e4dc3c1d
[INFO] running `Command { std: "docker" "start" "-a" "d9d39f0462a2a06976f2cad91f7e6e5786fdd06fc092084fa6b76a73e4dc3c1d", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling toml_datetime v0.6.11
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling toml_edit v0.22.27
[INFO] [stderr]    Compiling proc-macro-crate v3.3.0
[INFO] [stderr]    Compiling fmt-derive-proc v0.1.2
[INFO] [stderr]    Compiling fmt-derive v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.86s
[INFO] running `Command { std: "docker" "inspect" "d9d39f0462a2a06976f2cad91f7e6e5786fdd06fc092084fa6b76a73e4dc3c1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9d39f0462a2a06976f2cad91f7e6e5786fdd06fc092084fa6b76a73e4dc3c1d", kill_on_drop: false }`
[INFO] [stdout] d9d39f0462a2a06976f2cad91f7e6e5786fdd06fc092084fa6b76a73e4dc3c1d
[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] 80a55ffb8225be9097bd24fabf1cfd3f5acb24a2e5bcd1783f4e048bcabe5b4a
[INFO] running `Command { std: "docker" "start" "-a" "80a55ffb8225be9097bd24fabf1cfd3f5acb24a2e5bcd1783f4e048bcabe5b4a", kill_on_drop: false }`
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling yansi v1.0.1
[INFO] [stderr]    Compiling pretty_assertions v1.4.1
[INFO] [stderr]    Compiling fmt-derive v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `float` is never read
[INFO] [stdout]  --> src/test/basic_union.rs:9:7
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub union UnionDebug {
[INFO] [stdout]   |               ---------- field in this union
[INFO] [stdout] 8 |         pub unsigned: u32,
[INFO] [stdout] 9 |         pub float: f32,
[INFO] [stdout]   |             ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `float` is never read
[INFO] [stdout]   --> src/test/basic_union.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub union UnionDisplay {
[INFO] [stdout]    |               ------------ field in this union
[INFO] [stdout] 14 |         pub unsigned: u32,
[INFO] [stdout] 15 |         pub float: f32,
[INFO] [stdout]    |             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.95s
[INFO] running `Command { std: "docker" "inspect" "80a55ffb8225be9097bd24fabf1cfd3f5acb24a2e5bcd1783f4e048bcabe5b4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80a55ffb8225be9097bd24fabf1cfd3f5acb24a2e5bcd1783f4e048bcabe5b4a", kill_on_drop: false }`
[INFO] [stdout] 80a55ffb8225be9097bd24fabf1cfd3f5acb24a2e5bcd1783f4e048bcabe5b4a
[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] 2514cb76f768b12b78a0fef66c9dc35b20bd699de82d8af04338e5bfda3d88a4
[INFO] running `Command { std: "docker" "start" "-a" "2514cb76f768b12b78a0fef66c9dc35b20bd699de82d8af04338e5bfda3d88a4", kill_on_drop: false }`
[INFO] [stderr] warning: field `float` is never read
[INFO] [stderr]  --> src/test/basic_union.rs:9:7
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub union UnionDebug {
[INFO] [stderr]   |               ---------- field in this union
[INFO] [stderr] 8 |         pub unsigned: u32,
[INFO] [stderr] 9 |         pub float: f32,
[INFO] [stderr]   |             ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field `float` is never read
[INFO] [stderr]   --> src/test/basic_union.rs:15:7
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub union UnionDisplay {
[INFO] [stderr]    |               ------------ field in this union
[INFO] [stderr] 14 |         pub unsigned: u32,
[INFO] [stderr] 15 |         pub float: f32,
[INFO] [stderr]    |             ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `fmt-derive` (lib test) generated 2 warnings
[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/fmt_derive-cbf02042730f457a)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test test::basic_enum::unit_variant_test ... ok
[INFO] [stdout] test test::basic_enum::tuple_variant_test ... ok
[INFO] [stdout] test test::basic_struct::struct_test ... ok
[INFO] [stdout] test test::basic_struct::tuple_struct_test ... ok
[INFO] [stdout] test test::basic_struct::unit_struct_test ... ok
[INFO] [stdout] test test::basic_union::union_test ... ok
[INFO] [stdout] test test::generics::test_b ... ok
[INFO] [stdout] test test::ignored_field::not_unit_test ... ok
[INFO] [stdout] test test::ignored_field::tuple_struct_test ... ok
[INFO] [stdout] test test::ignored_field::struct_test ... ok
[INFO] [stdout] test test::generics::test_a ... ok
[INFO] [stdout] test test::custom_fmt_enum::struct_variant_test ... ok
[INFO] [stdout] test test::generics::test_c ... ok
[INFO] [stdout] test test::readme::main ... ok
[INFO] [stdout] test test::basic_enum::struct_variant_test ... ok
[INFO] [stdout] test test::custom_fmt_enum::tuple_variant_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "2514cb76f768b12b78a0fef66c9dc35b20bd699de82d8af04338e5bfda3d88a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2514cb76f768b12b78a0fef66c9dc35b20bd699de82d8af04338e5bfda3d88a4", kill_on_drop: false }`
[INFO] [stdout] 2514cb76f768b12b78a0fef66c9dc35b20bd699de82d8af04338e5bfda3d88a4