[INFO] fetching crate flowlang 0.2.17...
[INFO] checking flowlang-0.2.17 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate flowlang 0.2.17 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate flowlang 0.2.17 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 flowlang 0.2.17
[INFO] finished tweaking crates.io crate flowlang 0.2.17
[INFO] tweaked toml for crates.io crate flowlang 0.2.17 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate flowlang 0.2.17 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pyo3-macros v0.16.6
[INFO] [stderr]   Downloaded fslock v0.1.8
[INFO] [stderr]   Downloaded state v0.5.3
[INFO] [stderr]   Downloaded serde_bytes v0.11.12
[INFO] [stderr]   Downloaded sourcemap v6.0.1
[INFO] [stderr]   Downloaded pyo3-ffi v0.16.6
[INFO] [stderr]   Downloaded pyo3-build-config v0.16.6
[INFO] [stderr]   Downloaded pyo3-macros-backend v0.16.6
[INFO] [stderr]   Downloaded pyo3 v0.16.6
[INFO] [stderr]   Downloaded v8 v0.47.1
[INFO] [stderr]   Downloaded deno_ops v0.23.0
[INFO] [stderr]   Downloaded ndata v0.3.6
[INFO] [stderr]   Downloaded serde_v8 v0.56.0
[INFO] [stderr]   Downloaded deno_core v0.145.0
[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] 7d64562d2d7c132f3ee54a42214af9e80d19beb9a8f83ba66bac5e614a7d42fd
[INFO] running `Command { std: "docker" "start" "-a" "7d64562d2d7c132f3ee54a42214af9e80d19beb9a8f83ba66bac5e614a7d42fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7d64562d2d7c132f3ee54a42214af9e80d19beb9a8f83ba66bac5e614a7d42fd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d64562d2d7c132f3ee54a42214af9e80d19beb9a8f83ba66bac5e614a7d42fd", kill_on_drop: false }`
[INFO] [stdout] 7d64562d2d7c132f3ee54a42214af9e80d19beb9a8f83ba66bac5e614a7d42fd
[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] e390db703530a6fb3da699947b1d0c83a1c46fc4945f9df04e38479797f8c21b
[INFO] running `Command { std: "docker" "start" "-a" "e390db703530a6fb3da699947b1d0c83a1c46fc4945f9df04e38479797f8c21b", kill_on_drop: false }`
[INFO] [stderr]     Checking ndata v0.3.6
[INFO] [stderr]     Checking state v0.5.3
[INFO] [stderr]     Checking flowlang v0.2.17 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "e390db703530a6fb3da699947b1d0c83a1c46fc4945f9df04e38479797f8c21b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e390db703530a6fb3da699947b1d0c83a1c46fc4945f9df04e38479797f8c21b", kill_on_drop: false }`
[INFO] [stdout] e390db703530a6fb3da699947b1d0c83a1c46fc4945f9df04e38479797f8c21b
[INFO] checking flowlang-0.2.17 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate flowlang 0.2.17 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate flowlang 0.2.17 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 flowlang 0.2.17
[INFO] finished tweaking crates.io crate flowlang 0.2.17
[INFO] tweaked toml for crates.io crate flowlang 0.2.17 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate flowlang 0.2.17 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] ff00de42cb04f66fa4a20adfd58b63c35cc37ccdc428d716171ba9d29a3c78bc
[INFO] running `Command { std: "docker" "start" "-a" "ff00de42cb04f66fa4a20adfd58b63c35cc37ccdc428d716171ba9d29a3c78bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff00de42cb04f66fa4a20adfd58b63c35cc37ccdc428d716171ba9d29a3c78bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff00de42cb04f66fa4a20adfd58b63c35cc37ccdc428d716171ba9d29a3c78bc", kill_on_drop: false }`
[INFO] [stdout] ff00de42cb04f66fa4a20adfd58b63c35cc37ccdc428d716171ba9d29a3c78bc
[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] 594c0bf9cfcf58db234e464551d3ef1596f9b0708ccbd6d75b00ca944865ff45
[INFO] running `Command { std: "docker" "start" "-a" "594c0bf9cfcf58db234e464551d3ef1596f9b0708ccbd6d75b00ca944865ff45", kill_on_drop: false }`
[INFO] [stderr]     Checking state v0.5.3
[INFO] [stderr]     Checking ndata v0.3.6
[INFO] [stderr]     Checking flowlang v0.2.17 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/command.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | /     match typ.as_ref() {
[INFO] [stdout] 51 | |       "flow" => {
[INFO] [stdout] 52 | |         return code.has("flow");
[INFO] [stdout] 53 | |       },
[INFO] [stdout] ...  |
[INFO] [stdout] 72 | |       _ => panic!("Unknown command type {}", typ),
[INFO] [stdout] 73 | |     };
[INFO] [stdout]    | |_____^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/command.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 | /     match typ.as_ref() {
[INFO] [stdout] 51 | |       "flow" => {
[INFO] [stdout] 52 | |         return code.has("flow");
[INFO] [stdout] 53 | |       },
[INFO] [stdout] ...  |
[INFO] [stdout] 72 | |       _ => panic!("Unknown command type {}", typ),
[INFO] [stdout] 73 | |     };
[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] [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 `flowlang` (lib test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `flowlang` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "594c0bf9cfcf58db234e464551d3ef1596f9b0708ccbd6d75b00ca944865ff45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "594c0bf9cfcf58db234e464551d3ef1596f9b0708ccbd6d75b00ca944865ff45", kill_on_drop: false }`
[INFO] [stdout] 594c0bf9cfcf58db234e464551d3ef1596f9b0708ccbd6d75b00ca944865ff45