[INFO] fetching crate simplecss 0.2.1...
[INFO] checking simplecss-0.2.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate simplecss 0.2.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate simplecss 0.2.1 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate simplecss 0.2.1
[INFO] finished tweaking crates.io crate simplecss 0.2.1
[INFO] tweaked toml for crates.io crate simplecss 0.2.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate simplecss 0.2.1 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xmlparser v0.10.0
[INFO] [stderr]   Downloaded roxmltree v0.7.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b96fa7cee2337e4046397430ee1008cc3a4e3d70ff7a6a0f1f1fb0af8372c971
[INFO] running `Command { std: "docker" "start" "-a" "b96fa7cee2337e4046397430ee1008cc3a4e3d70ff7a6a0f1f1fb0af8372c971", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b96fa7cee2337e4046397430ee1008cc3a4e3d70ff7a6a0f1f1fb0af8372c971", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b96fa7cee2337e4046397430ee1008cc3a4e3d70ff7a6a0f1f1fb0af8372c971", kill_on_drop: false }`
[INFO] [stdout] b96fa7cee2337e4046397430ee1008cc3a4e3d70ff7a6a0f1f1fb0af8372c971
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 770acf744d79a8a62970d869fa74a592fc64bb29c75bf4ffc3396474601b7257
[INFO] running `Command { std: "docker" "start" "-a" "770acf744d79a8a62970d869fa74a592fc64bb29c75bf4ffc3396474601b7257", kill_on_drop: false }`
[INFO] [stderr]     Checking xmlparser v0.10.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking simplecss v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking roxmltree v0.7.3
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.44s
[INFO] running `Command { std: "docker" "inspect" "770acf744d79a8a62970d869fa74a592fc64bb29c75bf4ffc3396474601b7257", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "770acf744d79a8a62970d869fa74a592fc64bb29c75bf4ffc3396474601b7257", kill_on_drop: false }`
[INFO] [stdout] 770acf744d79a8a62970d869fa74a592fc64bb29c75bf4ffc3396474601b7257
[INFO] checking simplecss-0.2.1 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate simplecss 0.2.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate simplecss 0.2.1 on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate simplecss 0.2.1
[INFO] finished tweaking crates.io crate simplecss 0.2.1
[INFO] tweaked toml for crates.io crate simplecss 0.2.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate simplecss 0.2.1 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9715d3eb8772fc1f79e8c30b019cff0550420447b15dc8a52718020699c17fcb
[INFO] running `Command { std: "docker" "start" "-a" "9715d3eb8772fc1f79e8c30b019cff0550420447b15dc8a52718020699c17fcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9715d3eb8772fc1f79e8c30b019cff0550420447b15dc8a52718020699c17fcb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9715d3eb8772fc1f79e8c30b019cff0550420447b15dc8a52718020699c17fcb", kill_on_drop: false }`
[INFO] [stdout] 9715d3eb8772fc1f79e8c30b019cff0550420447b15dc8a52718020699c17fcb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a8c444b8883767db0109bfaa116da2ef05ffaa0a83d3fe7ba82bb2abd5b39fb
[INFO] running `Command { std: "docker" "start" "-a" "3a8c444b8883767db0109bfaa116da2ef05ffaa0a83d3fe7ba82bb2abd5b39fb", kill_on_drop: false }`
[INFO] [stderr]     Checking xmlparser v0.10.0
[INFO] [stderr]     Checking env_logger v0.6.2
[INFO] [stderr]     Checking simplecss v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0284]: type annotations needed: cannot satisfy `_ -> _`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/xmlparser-0.10.0/src/lib.rs:449:17
[INFO] [stdout]     |
[INFO] [stdout] 449 | /                 if $token_type == TokenType::Unknown {
[INFO] [stdout] 450 | |                     return Some(Err(Error::UnknownToken(pos)));
[INFO] [stdout] 451 | |                 } else {
[INFO] [stdout] 452 | |                     return Some(Err(Error::UnexpectedToken($token_type, pos)));
[INFO] [stdout] 453 | |                 }
[INFO] [stdout]     | |_________________^ cannot satisfy `_ -> _`
[INFO] [stdout] ...
[INFO] [stdout] 466 |                               gen_err!(token_type);
[INFO] [stdout]     |                               -------------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this error originates in the macro `gen_err` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0284`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `xmlparser` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "3a8c444b8883767db0109bfaa116da2ef05ffaa0a83d3fe7ba82bb2abd5b39fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a8c444b8883767db0109bfaa116da2ef05ffaa0a83d3fe7ba82bb2abd5b39fb", kill_on_drop: false }`
[INFO] [stdout] 3a8c444b8883767db0109bfaa116da2ef05ffaa0a83d3fe7ba82bb2abd5b39fb