[INFO] fetching crate yaml-split 0.4.0...
[INFO] checking yaml-split-0.4.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate yaml-split 0.4.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate yaml-split 0.4.0 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 yaml-split 0.4.0
[INFO] finished tweaking crates.io crate yaml-split 0.4.0
[INFO] tweaked toml for crates.io crate yaml-split 0.4.0 written to /workspace/builds/worker-0-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 7 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] a417eb6123ce8f6a3c2b66872d9730ed297c4fc09fd3b82e3de574ba8531576c
[INFO] running `Command { std: "docker" "start" "-a" "a417eb6123ce8f6a3c2b66872d9730ed297c4fc09fd3b82e3de574ba8531576c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a417eb6123ce8f6a3c2b66872d9730ed297c4fc09fd3b82e3de574ba8531576c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a417eb6123ce8f6a3c2b66872d9730ed297c4fc09fd3b82e3de574ba8531576c", kill_on_drop: false }`
[INFO] [stdout] a417eb6123ce8f6a3c2b66872d9730ed297c4fc09fd3b82e3de574ba8531576c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 40b7435de8a928228c00a2a4b68a70f892e293b91ea3671ec2bbf621fca5c704
[INFO] running `Command { std: "docker" "start" "-a" "40b7435de8a928228c00a2a4b68a70f892e293b91ea3671ec2bbf621fca5c704", kill_on_drop: false }`
[INFO] [stderr]     Checking yaml-split v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "40b7435de8a928228c00a2a4b68a70f892e293b91ea3671ec2bbf621fca5c704", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40b7435de8a928228c00a2a4b68a70f892e293b91ea3671ec2bbf621fca5c704", kill_on_drop: false }`
[INFO] [stdout] 40b7435de8a928228c00a2a4b68a70f892e293b91ea3671ec2bbf621fca5c704
[INFO] checking yaml-split-0.4.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate yaml-split 0.4.0 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate yaml-split 0.4.0 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 yaml-split 0.4.0
[INFO] finished tweaking crates.io crate yaml-split 0.4.0
[INFO] tweaked toml for crates.io crate yaml-split 0.4.0 written to /workspace/builds/worker-0-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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 383fe7e736f71059fefe7c4ca4f8a9a4f4312447baab2c1b63df47ea7686e97e
[INFO] running `Command { std: "docker" "start" "-a" "383fe7e736f71059fefe7c4ca4f8a9a4f4312447baab2c1b63df47ea7686e97e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "383fe7e736f71059fefe7c4ca4f8a9a4f4312447baab2c1b63df47ea7686e97e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "383fe7e736f71059fefe7c4ca4f8a9a4f4312447baab2c1b63df47ea7686e97e", kill_on_drop: false }`
[INFO] [stdout] 383fe7e736f71059fefe7c4ca4f8a9a4f4312447baab2c1b63df47ea7686e97e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 99a8b3579bb4676b4e409470522d992faad93e8288a1557fdc59ffac52bf077b
[INFO] running `Command { std: "docker" "start" "-a" "99a8b3579bb4676b4e409470522d992faad93e8288a1557fdc59ffac52bf077b", kill_on_drop: false }`
[INFO] [stderr]     Checking yaml-split v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:204:25
[INFO] [stdout]     |
[INFO] [stdout] 204 | /                         match c {
[INFO] [stdout] 205 | |                             // Spaces, tabs and carriage returns don't tell us anything,
[INFO] [stdout] 206 | |                             // keep searching the line.
[INFO] [stdout] 207 | |                             ' ' | '\t' | '\r' => continue,
[INFO] [stdout] ...   |
[INFO] [stdout] 223 | |                             }
[INFO] [stdout] 224 | |                         };
[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[E0282]: type annotations needed
[INFO] [stdout]    --> src/lib.rs:204:25
[INFO] [stdout]     |
[INFO] [stdout] 204 | /                         match c {
[INFO] [stdout] 205 | |                             // Spaces, tabs and carriage returns don't tell us anything,
[INFO] [stdout] 206 | |                             // keep searching the line.
[INFO] [stdout] 207 | |                             ' ' | '\t' | '\r' => continue,
[INFO] [stdout] ...   |
[INFO] [stdout] 223 | |                             }
[INFO] [stdout] 224 | |                         };
[INFO] [stdout]     | |_________________________^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `yaml-split` (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 `yaml-split` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "99a8b3579bb4676b4e409470522d992faad93e8288a1557fdc59ffac52bf077b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99a8b3579bb4676b4e409470522d992faad93e8288a1557fdc59ffac52bf077b", kill_on_drop: false }`
[INFO] [stdout] 99a8b3579bb4676b4e409470522d992faad93e8288a1557fdc59ffac52bf077b