[INFO] fetching crate difficient-macros 0.1.0...
[INFO] testing difficient-macros-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate difficient-macros 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate difficient-macros 0.1.0
[INFO] finished tweaking crates.io crate difficient-macros 0.1.0
[INFO] tweaked toml for crates.io crate difficient-macros 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate difficient-macros 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate difficient-macros 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" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ident_case v1.0.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.95
[INFO] [stderr]   Downloaded darling_macro v0.21.0
[INFO] [stderr]   Downloaded heck v0.5.0
[INFO] [stderr]   Downloaded strsim v0.11.1
[INFO] [stderr]   Downloaded darling v0.21.0
[INFO] [stderr]   Downloaded diff v0.1.13
[INFO] [stderr]   Downloaded yansi v1.0.1
[INFO] [stderr]   Downloaded pretty_assertions v1.4.1
[INFO] [stderr]   Downloaded prettyplease v0.2.36
[INFO] [stderr]   Downloaded unicode-ident v1.0.13
[INFO] [stderr]   Downloaded darling_core v0.21.0
[INFO] [stderr]   Downloaded syn v2.0.104
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81fbee3f73e78c8e74468d1bdd0c693851fbf17c39e3a12930b74fc45598774b
[INFO] running `Command { std: "docker" "start" "-a" "81fbee3f73e78c8e74468d1bdd0c693851fbf17c39e3a12930b74fc45598774b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81fbee3f73e78c8e74468d1bdd0c693851fbf17c39e3a12930b74fc45598774b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81fbee3f73e78c8e74468d1bdd0c693851fbf17c39e3a12930b74fc45598774b", kill_on_drop: false }`
[INFO] [stdout] 81fbee3f73e78c8e74468d1bdd0c693851fbf17c39e3a12930b74fc45598774b
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 976e889057f4dbc1a81f086897777eed798d4fea48ce34113c6ba94df00b6bea
[INFO] running `Command { std: "docker" "start" "-a" "976e889057f4dbc1a81f086897777eed798d4fea48ce34113c6ba94df00b6bea", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.13
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]    Compiling strsim v0.11.1
[INFO] [stderr]    Compiling heck v0.5.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling darling_core v0.21.0
[INFO] [stderr]    Compiling darling_macro v0.21.0
[INFO] [stderr]    Compiling darling v0.21.0
[INFO] [stderr]    Compiling difficient-macros v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.28s
[INFO] running `Command { std: "docker" "inspect" "976e889057f4dbc1a81f086897777eed798d4fea48ce34113c6ba94df00b6bea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "976e889057f4dbc1a81f086897777eed798d4fea48ce34113c6ba94df00b6bea", kill_on_drop: false }`
[INFO] [stdout] 976e889057f4dbc1a81f086897777eed798d4fea48ce34113c6ba94df00b6bea
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e05e3b24113b8707cfeb2ace494d9c08a434ef684e5cae8e9e63b9ce809ba4b8
[INFO] running `Command { std: "docker" "start" "-a" "e05e3b24113b8707cfeb2ace494d9c08a434ef684e5cae8e9e63b9ce809ba4b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling prettyplease v0.2.36
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling yansi v1.0.1
[INFO] [stderr]    Compiling difficient-macros v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling pretty_assertions v1.4.1
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.28s
[INFO] running `Command { std: "docker" "inspect" "e05e3b24113b8707cfeb2ace494d9c08a434ef684e5cae8e9e63b9ce809ba4b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e05e3b24113b8707cfeb2ace494d9c08a434ef684e5cae8e9e63b9ce809ba4b8", kill_on_drop: false }`
[INFO] [stdout] e05e3b24113b8707cfeb2ace494d9c08a434ef684e5cae8e9e63b9ce809ba4b8
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 04465569c704a71cb0825aafd4666992c57c4405e353a0129683bd6bc5dfbeff
[INFO] running `Command { std: "docker" "start" "-a" "04465569c704a71cb0825aafd4666992c57c4405e353a0129683bd6bc5dfbeff", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/difficient_macros-5162b6698147a3f8)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::test_derive_atomic ... ok
[INFO] [stdout] test tests::test_derive_skipped_field ... ok
[INFO] [stdout] test tests::test_derive_enum ... ok
[INFO] [stdout] test tests::test_transparent ... ok
[INFO] [stdout] test tests::test_derive_skippable_enum ... ok
[INFO] [stdout] test tests::test_derive_struct ... ok
[INFO] [stdout] test tests::test_derive_tuple_struct ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests difficient_macros
[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" "04465569c704a71cb0825aafd4666992c57c4405e353a0129683bd6bc5dfbeff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04465569c704a71cb0825aafd4666992c57c4405e353a0129683bd6bc5dfbeff", kill_on_drop: false }`
[INFO] [stdout] 04465569c704a71cb0825aafd4666992c57c4405e353a0129683bd6bc5dfbeff