[INFO] cloning repository https://github.com/kurtbuilds/playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kurtbuilds/playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkurtbuilds%2Fplayground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkurtbuilds%2Fplayground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 64b7026698fbd00c8f3d665715e18b33f403c1f5
[INFO] checking kurtbuilds/playground against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkurtbuilds%2Fplayground" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kurtbuilds/playground 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 git repo https://github.com/kurtbuilds/playground
[INFO] finished tweaking git repo https://github.com/kurtbuilds/playground
[INFO] tweaked toml for git repo https://github.com/kurtbuilds/playground written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kurtbuilds/playground 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] 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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ffb1e478231c4483666749b09b843dba9ba77cda50e6a2be9182e38eda61e2f
[INFO] running `Command { std: "docker" "start" "-a" "1ffb1e478231c4483666749b09b843dba9ba77cda50e6a2be9182e38eda61e2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ffb1e478231c4483666749b09b843dba9ba77cda50e6a2be9182e38eda61e2f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ffb1e478231c4483666749b09b843dba9ba77cda50e6a2be9182e38eda61e2f", kill_on_drop: false }`
[INFO] [stdout] 1ffb1e478231c4483666749b09b843dba9ba77cda50e6a2be9182e38eda61e2f
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb3d8f0f9c41136b21eda9208c2739c98c420d9ba7caa0121a4c3ffe42415b0c
[INFO] running `Command { std: "docker" "start" "-a" "bb3d8f0f9c41136b21eda9208c2739c98c420d9ba7caa0121a4c3ffe42415b0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]     Checking gimli v0.27.3
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]    Compiling anyhow v1.0.72
[INFO] [stderr]     Checking object v0.31.1
[INFO] [stderr]    Compiling backtrace v0.3.68
[INFO] [stderr]     Checking addr2line v0.20.0
[INFO] [stderr]     Checking playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.99s
[INFO] running `Command { std: "docker" "inspect" "bb3d8f0f9c41136b21eda9208c2739c98c420d9ba7caa0121a4c3ffe42415b0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb3d8f0f9c41136b21eda9208c2739c98c420d9ba7caa0121a4c3ffe42415b0c", kill_on_drop: false }`
[INFO] [stdout] bb3d8f0f9c41136b21eda9208c2739c98c420d9ba7caa0121a4c3ffe42415b0c
[INFO] checking kurtbuilds/playground against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkurtbuilds%2Fplayground" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kurtbuilds/playground 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 git repo https://github.com/kurtbuilds/playground
[INFO] finished tweaking git repo https://github.com/kurtbuilds/playground
[INFO] tweaked toml for git repo https://github.com/kurtbuilds/playground written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/kurtbuilds/playground 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] f692d3c6885fa0415bf5e23522bed811d349ce8108c4d3a978abdd7ab91c04a6
[INFO] running `Command { std: "docker" "start" "-a" "f692d3c6885fa0415bf5e23522bed811d349ce8108c4d3a978abdd7ab91c04a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f692d3c6885fa0415bf5e23522bed811d349ce8108c4d3a978abdd7ab91c04a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f692d3c6885fa0415bf5e23522bed811d349ce8108c4d3a978abdd7ab91c04a6", kill_on_drop: false }`
[INFO] [stdout] f692d3c6885fa0415bf5e23522bed811d349ce8108c4d3a978abdd7ab91c04a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 2359a7316d2ec7bb1207a423d064988d0650fcf22e88b050c2ed3c809936bdcd
[INFO] running `Command { std: "docker" "start" "-a" "2359a7316d2ec7bb1207a423d064988d0650fcf22e88b050c2ed3c809936bdcd", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking gimli v0.27.3
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]    Compiling anyhow v1.0.72
[INFO] [stderr]     Checking object v0.31.1
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]     --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/miniz_oxide-0.7.1/src/inflate/core.rs:1154:9
[INFO] [stdout]      |
[INFO] [stdout] 1154 | /         match state {
[INFO] [stdout] 1155 | |             Start => generate_state!(state, 'state_machine, {
[INFO] [stdout] 1156 | |                 l.bit_buf = 0;
[INFO] [stdout] 1157 | |                 l.num_bits = 0;
[INFO] [stdout] ...    |
[INFO] [stdout] 1699 | |             _ => break TINFLStatus::Failed,
[INFO] [stdout] 1700 | |         };
[INFO] [stdout]      | |_________^ cannot infer type
[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 E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `miniz_oxide` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "2359a7316d2ec7bb1207a423d064988d0650fcf22e88b050c2ed3c809936bdcd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2359a7316d2ec7bb1207a423d064988d0650fcf22e88b050c2ed3c809936bdcd", kill_on_drop: false }`
[INFO] [stdout] 2359a7316d2ec7bb1207a423d064988d0650fcf22e88b050c2ed3c809936bdcd