[INFO] cloning repository https://github.com/mikedilger/k256_test
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mikedilger/k256_test" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikedilger%2Fk256_test", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikedilger%2Fk256_test'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 278e061c449f602016052029ee79b7481bfe064b
[INFO] checking mikedilger/k256_test against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikedilger%2Fk256_test" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mikedilger/k256_test 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/mikedilger/k256_test
[INFO] finished tweaking git repo https://github.com/mikedilger/k256_test
[INFO] tweaked toml for git repo https://github.com/mikedilger/k256_test written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mikedilger/k256_test 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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 377193f46ea6e9ac1663f14d7c8e1b64a0eb10432107178a56e82c6ff6f080fe
[INFO] running `Command { std: "docker" "start" "-a" "377193f46ea6e9ac1663f14d7c8e1b64a0eb10432107178a56e82c6ff6f080fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "377193f46ea6e9ac1663f14d7c8e1b64a0eb10432107178a56e82c6ff6f080fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "377193f46ea6e9ac1663f14d7c8e1b64a0eb10432107178a56e82c6ff6f080fe", kill_on_drop: false }`
[INFO] [stdout] 377193f46ea6e9ac1663f14d7c8e1b64a0eb10432107178a56e82c6ff6f080fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 3eb4ade55948f968a50e5217b0b78c9ea619850e24243fa29a5254fa58e48994
[INFO] running `Command { std: "docker" "start" "-a" "3eb4ade55948f968a50e5217b0b78c9ea619850e24243fa29a5254fa58e48994", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking zeroize v1.5.7
[INFO] [stderr]     Checking const-oid v0.9.1
[INFO] [stderr]     Checking base64ct v1.5.3
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]     Checking base16ct v0.1.1
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]     Checking der v0.6.1
[INFO] [stderr]     Checking spki v0.6.0
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stderr]     Checking pkcs8 v0.9.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking ff v0.12.1
[INFO] [stderr]     Checking group v0.12.1
[INFO] [stderr]     Checking block-buffer v0.10.3
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking crypto-bigint v0.4.9
[INFO] [stderr]     Checking sec1 v0.3.0
[INFO] [stderr]     Checking digest v0.10.6
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking signature v1.6.4
[INFO] [stderr]     Checking sha2 v0.10.6
[INFO] [stderr]     Checking elliptic-curve v0.12.3
[INFO] [stderr]     Checking rfc6979 v0.3.1
[INFO] [stderr]     Checking ecdsa v0.14.8
[INFO] [stderr]     Checking k256 v0.11.6
[INFO] [stderr]     Checking k256_test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `Command { std: "docker" "inspect" "3eb4ade55948f968a50e5217b0b78c9ea619850e24243fa29a5254fa58e48994", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eb4ade55948f968a50e5217b0b78c9ea619850e24243fa29a5254fa58e48994", kill_on_drop: false }`
[INFO] [stdout] 3eb4ade55948f968a50e5217b0b78c9ea619850e24243fa29a5254fa58e48994
[INFO] checking mikedilger/k256_test against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmikedilger%2Fk256_test" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mikedilger/k256_test 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/mikedilger/k256_test
[INFO] finished tweaking git repo https://github.com/mikedilger/k256_test
[INFO] tweaked toml for git repo https://github.com/mikedilger/k256_test written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mikedilger/k256_test 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] aa703301f3eb31d97fad06a9ef32c3313e630edce56d1e3450553cd8df48030a
[INFO] running `Command { std: "docker" "start" "-a" "aa703301f3eb31d97fad06a9ef32c3313e630edce56d1e3450553cd8df48030a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa703301f3eb31d97fad06a9ef32c3313e630edce56d1e3450553cd8df48030a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa703301f3eb31d97fad06a9ef32c3313e630edce56d1e3450553cd8df48030a", kill_on_drop: false }`
[INFO] [stdout] aa703301f3eb31d97fad06a9ef32c3313e630edce56d1e3450553cd8df48030a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 40ac8aa69090065b91d25d7285d129a40fc7e2192503ab1ab9221d0751ba2546
[INFO] running `Command { std: "docker" "start" "-a" "40ac8aa69090065b91d25d7285d129a40fc7e2192503ab1ab9221d0751ba2546", kill_on_drop: false }`
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking zeroize v1.5.7
[INFO] [stderr]     Checking const-oid v0.9.1
[INFO] [stderr]     Checking base64ct v1.5.3
[INFO] [stderr]     Checking base16ct v0.1.1
[INFO] [stderr]     Checking cpufeatures v0.2.5
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking der v0.6.1
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/der-0.6.1/src/writer/slice.rs:34:18
[INFO] [stdout]    |
[INFO] [stdout] 34 |             self.error(ErrorKind::Failed)?;
[INFO] [stdout]    |                  ^^^^^ cannot infer type of the type parameter `T` declared on the method `error`
[INFO] [stdout]    |
[INFO] [stdout] help: consider specifying the generic argument
[INFO] [stdout]    |
[INFO] [stdout] 34 |             self.error::<T>(ErrorKind::Failed)?;
[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 `der` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "40ac8aa69090065b91d25d7285d129a40fc7e2192503ab1ab9221d0751ba2546", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "40ac8aa69090065b91d25d7285d129a40fc7e2192503ab1ab9221d0751ba2546", kill_on_drop: false }`
[INFO] [stdout] 40ac8aa69090065b91d25d7285d129a40fc7e2192503ab1ab9221d0751ba2546