[INFO] fetching crate rio_turtle 0.8.4...
[INFO] checking rio_turtle-0.8.4 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate rio_turtle 0.8.4 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate rio_turtle 0.8.4 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 rio_turtle 0.8.4
[INFO] finished tweaking crates.io crate rio_turtle 0.8.4
[INFO] tweaked toml for crates.io crate rio_turtle 0.8.4 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 10 packages
[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 oxilangtag v0.1.5
[INFO] [stderr]   Downloaded oxiri v0.2.3
[INFO] [stderr]   Downloaded rio_api v0.8.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] d3f70c6eeb847b67fadf566b1a96bef357969cc503ecaef15d565e36650e84e9
[INFO] running `Command { std: "docker" "start" "-a" "d3f70c6eeb847b67fadf566b1a96bef357969cc503ecaef15d565e36650e84e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d3f70c6eeb847b67fadf566b1a96bef357969cc503ecaef15d565e36650e84e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d3f70c6eeb847b67fadf566b1a96bef357969cc503ecaef15d565e36650e84e9", kill_on_drop: false }`
[INFO] [stdout] d3f70c6eeb847b67fadf566b1a96bef357969cc503ecaef15d565e36650e84e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 2c8465c09a8e6530a90714e62083085896180c84f8f5b001f59e921f51cc5d09
[INFO] running `Command { std: "docker" "start" "-a" "2c8465c09a8e6530a90714e62083085896180c84f8f5b001f59e921f51cc5d09", kill_on_drop: false }`
[INFO] [stderr]     Checking oxilangtag v0.1.5
[INFO] [stderr]     Checking rio_api v0.8.4
[INFO] [stderr]     Checking oxiri v0.2.3
[INFO] [stderr]     Checking rio_turtle v0.8.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.37s
[INFO] running `Command { std: "docker" "inspect" "2c8465c09a8e6530a90714e62083085896180c84f8f5b001f59e921f51cc5d09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c8465c09a8e6530a90714e62083085896180c84f8f5b001f59e921f51cc5d09", kill_on_drop: false }`
[INFO] [stdout] 2c8465c09a8e6530a90714e62083085896180c84f8f5b001f59e921f51cc5d09
[INFO] checking rio_turtle-0.8.4 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate rio_turtle 0.8.4 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate rio_turtle 0.8.4 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 rio_turtle 0.8.4
[INFO] finished tweaking crates.io crate rio_turtle 0.8.4
[INFO] tweaked toml for crates.io crate rio_turtle 0.8.4 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 9abe3464256d1ae4ad574e42f08b9b9342ae53b170a20c2f53237dad47a50efd
[INFO] running `Command { std: "docker" "start" "-a" "9abe3464256d1ae4ad574e42f08b9b9342ae53b170a20c2f53237dad47a50efd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9abe3464256d1ae4ad574e42f08b9b9342ae53b170a20c2f53237dad47a50efd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9abe3464256d1ae4ad574e42f08b9b9342ae53b170a20c2f53237dad47a50efd", kill_on_drop: false }`
[INFO] [stdout] 9abe3464256d1ae4ad574e42f08b9b9342ae53b170a20c2f53237dad47a50efd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 52b14d2d759225d8ab8e291c2760c8e76823e0384fbda2dfd3c911011f4faba9
[INFO] running `Command { std: "docker" "start" "-a" "52b14d2d759225d8ab8e291c2760c8e76823e0384fbda2dfd3c911011f4faba9", kill_on_drop: false }`
[INFO] [stderr]     Checking oxiri v0.2.3
[INFO] [stderr]     Checking rio_api v0.8.4
[INFO] [stderr]     Checking oxilangtag v0.1.5
[INFO] [stderr]     Checking rio_turtle v0.8.4 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/shared.rs:224:18
[INFO] [stdout]     |
[INFO] [stdout] 224 |             read.unexpected_char_error()?;
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^ cannot infer type of the type parameter `T` declared on the method `unexpected_char_error`
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 224 |             read.unexpected_char_error::<T>()?;
[INFO] [stdout]     |                                       +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/shared.rs:224:18
[INFO] [stdout]     |
[INFO] [stdout] 224 |             read.unexpected_char_error()?;
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^ cannot infer type of the type parameter `T` declared on the method `unexpected_char_error`
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]     |
[INFO] [stdout] 224 |             read.unexpected_char_error::<T>()?;
[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 `rio_turtle` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[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 `rio_turtle` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "52b14d2d759225d8ab8e291c2760c8e76823e0384fbda2dfd3c911011f4faba9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52b14d2d759225d8ab8e291c2760c8e76823e0384fbda2dfd3c911011f4faba9", kill_on_drop: false }`
[INFO] [stdout] 52b14d2d759225d8ab8e291c2760c8e76823e0384fbda2dfd3c911011f4faba9