[INFO] fetching crate radix50-cli 0.1.0...
[INFO] checking radix50-cli-0.1.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate radix50-cli 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate radix50-cli 0.1.0 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 radix50-cli 0.1.0
[INFO] finished tweaking crates.io crate radix50-cli 0.1.0
[INFO] tweaked toml for crates.io crate radix50-cli 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate radix50-cli 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded const_for v0.1.2
[INFO] [stderr]   Downloaded radix50 v0.1.0
[INFO] [stderr]   Downloaded docopt v1.1.1
[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] 5d75a6b13756db844a11c3915182c9e0d05d605c70f5977954a74959e9332370
[INFO] running `Command { std: "docker" "start" "-a" "5d75a6b13756db844a11c3915182c9e0d05d605c70f5977954a74959e9332370", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5d75a6b13756db844a11c3915182c9e0d05d605c70f5977954a74959e9332370", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5d75a6b13756db844a11c3915182c9e0d05d605c70f5977954a74959e9332370", kill_on_drop: false }`
[INFO] [stdout] 5d75a6b13756db844a11c3915182c9e0d05d605c70f5977954a74959e9332370
[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] 96b850aa6d1063c81e17f8c2ccc234ad0331508886a336e6cade9e0b86efa1e0
[INFO] running `Command { std: "docker" "start" "-a" "96b850aa6d1063c81e17f8c2ccc234ad0331508886a336e6cade9e0b86efa1e0", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]     Checking const_for v0.1.2
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking radix50 v0.1.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.37
[INFO] [stderr]     Checking regex-automata v0.3.8
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]     Checking regex v1.9.5
[INFO] [stderr]     Checking docopt v1.1.1
[INFO] [stderr]     Checking radix50-cli v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.96s
[INFO] running `Command { std: "docker" "inspect" "96b850aa6d1063c81e17f8c2ccc234ad0331508886a336e6cade9e0b86efa1e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96b850aa6d1063c81e17f8c2ccc234ad0331508886a336e6cade9e0b86efa1e0", kill_on_drop: false }`
[INFO] [stdout] 96b850aa6d1063c81e17f8c2ccc234ad0331508886a336e6cade9e0b86efa1e0
[INFO] checking radix50-cli-0.1.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate radix50-cli 0.1.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate radix50-cli 0.1.0 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 radix50-cli 0.1.0
[INFO] finished tweaking crates.io crate radix50-cli 0.1.0
[INFO] tweaked toml for crates.io crate radix50-cli 0.1.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate radix50-cli 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" "+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] 96b6de15e60eccae4fca77196e9613e3966df6aea0aa8e7367a78dc6663b0dc3
[INFO] running `Command { std: "docker" "start" "-a" "96b6de15e60eccae4fca77196e9613e3966df6aea0aa8e7367a78dc6663b0dc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96b6de15e60eccae4fca77196e9613e3966df6aea0aa8e7367a78dc6663b0dc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96b6de15e60eccae4fca77196e9613e3966df6aea0aa8e7367a78dc6663b0dc3", kill_on_drop: false }`
[INFO] [stdout] 96b6de15e60eccae4fca77196e9613e3966df6aea0aa8e7367a78dc6663b0dc3
[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] 8e1ea5cc1cbc50843dde9990d82655ccbf61ab1caeb644a5ea520d4a5117b3a5
[INFO] running `Command { std: "docker" "start" "-a" "8e1ea5cc1cbc50843dde9990d82655ccbf61ab1caeb644a5ea520d4a5117b3a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.67
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking const_for v0.1.2
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking radix50 v0.1.0
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/radix50-0.1.0/radix50.rs:195:9
[INFO] [stdout]     |
[INFO] [stdout] 195 |         Err(Error::IllegalChar { char: c, pos })?;
[INFO] [stdout]     |         ^^^ cannot infer type of the type parameter `T` declared on the enum `Result`
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]     |
[INFO] [stdout] 195 |         Err::<T, Error>(Error::IllegalChar { char: c, pos })?;
[INFO] [stdout]     |            ++++++++++++
[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 `radix50` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "8e1ea5cc1cbc50843dde9990d82655ccbf61ab1caeb644a5ea520d4a5117b3a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e1ea5cc1cbc50843dde9990d82655ccbf61ab1caeb644a5ea520d4a5117b3a5", kill_on_drop: false }`
[INFO] [stdout] 8e1ea5cc1cbc50843dde9990d82655ccbf61ab1caeb644a5ea520d4a5117b3a5