[INFO] fetching crate apub-rustcrypto 0.2.0...
[INFO] checking apub-rustcrypto-0.2.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate apub-rustcrypto 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate apub-rustcrypto 0.2.0 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 apub-rustcrypto 0.2.0
[INFO] finished tweaking crates.io crate apub-rustcrypto 0.2.0
[INFO] tweaked toml for crates.io crate apub-rustcrypto 0.2.0 written to /workspace/builds/worker-4-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 61 packages
[INFO] [stderr]       Adding base64 v0.13.1 (latest: v0.22.0)
[INFO] [stderr]       Adding base64ct v1.1.1 (latest: v1.6.0)
[INFO] [stderr]       Adding block-buffer v0.9.0 (latest: v0.10.4)
[INFO] [stderr]       Adding const-oid v0.6.2 (latest: v0.9.6)
[INFO] [stderr]       Adding crypto-bigint v0.2.11 (latest: v0.5.5)
[INFO] [stderr]       Adding der v0.4.5 (latest: v0.7.9)
[INFO] [stderr]       Adding digest v0.9.0 (latest: v0.10.7)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding num-bigint-dig v0.7.1 (latest: v0.8.4)
[INFO] [stderr]       Adding pem-rfc7468 v0.2.4 (latest: v0.7.0)
[INFO] [stderr]       Adding pkcs1 v0.2.4 (latest: v0.7.5)
[INFO] [stderr]       Adding pkcs8 v0.7.6 (latest: v0.10.2)
[INFO] [stderr]       Adding rsa v0.5.0 (latest: v0.9.6)
[INFO] [stderr]       Adding sha2 v0.9.9 (latest: v0.10.8)
[INFO] [stderr]       Adding spin v0.5.2 (latest: v0.9.8)
[INFO] [stderr]       Adding spki v0.4.1 (latest: v0.7.3)
[INFO] [stderr]       Adding wasi v0.11.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding zeroize v1.4.3 (latest: v1.7.0)
[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 zeroize v1.4.3
[INFO] [stderr]   Downloaded rsa v0.5.0
[INFO] [stderr]   Downloaded pkcs1 v0.2.4
[INFO] [stderr]   Downloaded apub-core v0.2.0
[INFO] [stderr]   Downloaded crypto-bigint v0.2.11
[INFO] [stderr]   Downloaded num-bigint-dig v0.7.1
[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] 1cd6056f96e19fca13ba1736da140c8e7fb92b00cfaef0cf01b6172af51af238
[INFO] running `Command { std: "docker" "start" "-a" "1cd6056f96e19fca13ba1736da140c8e7fb92b00cfaef0cf01b6172af51af238", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1cd6056f96e19fca13ba1736da140c8e7fb92b00cfaef0cf01b6172af51af238", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cd6056f96e19fca13ba1736da140c8e7fb92b00cfaef0cf01b6172af51af238", kill_on_drop: false }`
[INFO] [stdout] 1cd6056f96e19fca13ba1736da140c8e7fb92b00cfaef0cf01b6172af51af238
[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] 0b749ee15f0499e239e4cc33bcfdad74cb31feb8a8f7863af29c637ea9d12962
[INFO] running `Command { std: "docker" "start" "-a" "0b749ee15f0499e239e4cc33bcfdad74cb31feb8a8f7863af29c637ea9d12962", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]     Checking const-oid v0.6.2
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking base64ct v1.1.1
[INFO] [stderr]    Compiling num-bigint-dig v0.7.1
[INFO] [stderr]     Checking pem-rfc7468 v0.2.4
[INFO] [stderr]    Compiling async-trait v0.1.79
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking cpufeatures v0.2.12
[INFO] [stderr]     Checking opaque-debug v0.3.1
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking crypto-bigint v0.2.11
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]     Checking der v0.4.5
[INFO] [stderr]     Checking spki v0.4.1
[INFO] [stderr]    Compiling zeroize_derive v1.4.2
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]     Checking zeroize v1.4.3
[INFO] [stderr]     Checking pkcs1 v0.2.4
[INFO] [stderr]     Checking pkcs8 v0.7.6
[INFO] [stderr]     Checking thiserror v1.0.58
[INFO] [stderr]     Checking rsa v0.5.0
[INFO] [stderr]     Checking serde v1.0.197
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking apub-core v0.2.0
[INFO] [stderr]     Checking apub-rustcrypto v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.50s
[INFO] running `Command { std: "docker" "inspect" "0b749ee15f0499e239e4cc33bcfdad74cb31feb8a8f7863af29c637ea9d12962", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b749ee15f0499e239e4cc33bcfdad74cb31feb8a8f7863af29c637ea9d12962", kill_on_drop: false }`
[INFO] [stdout] 0b749ee15f0499e239e4cc33bcfdad74cb31feb8a8f7863af29c637ea9d12962
[INFO] checking apub-rustcrypto-0.2.0 against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] extracting crate apub-rustcrypto 0.2.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate apub-rustcrypto 0.2.0 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 apub-rustcrypto 0.2.0
[INFO] finished tweaking crates.io crate apub-rustcrypto 0.2.0
[INFO] tweaked toml for crates.io crate apub-rustcrypto 0.2.0 written to /workspace/builds/worker-4-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-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] 8bd35cc8e6e80363415e91206241ba6e193b4768e348f650d12687a8252979bf
[INFO] running `Command { std: "docker" "start" "-a" "8bd35cc8e6e80363415e91206241ba6e193b4768e348f650d12687a8252979bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8bd35cc8e6e80363415e91206241ba6e193b4768e348f650d12687a8252979bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8bd35cc8e6e80363415e91206241ba6e193b4768e348f650d12687a8252979bf", kill_on_drop: false }`
[INFO] [stdout] 8bd35cc8e6e80363415e91206241ba6e193b4768e348f650d12687a8252979bf
[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] a681fb66786ddb0cd8444aca5f0b3a98b3c35a90825c398c61040c19d8fafc8e
[INFO] running `Command { std: "docker" "start" "-a" "a681fb66786ddb0cd8444aca5f0b3a98b3c35a90825c398c61040c19d8fafc8e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling libm v0.2.8
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking const-oid v0.6.2
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]     Checking base64ct v1.1.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking pem-rfc7468 v0.2.4
[INFO] [stderr]    Compiling num-bigint-dig v0.7.1
[INFO] [stderr]     Checking spin v0.5.2
[INFO] [stderr]    Compiling async-trait v0.1.79
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]     Checking opaque-debug v0.3.1
[INFO] [stderr]     Checking cpufeatures v0.2.12
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]     Checking sha2 v0.9.9
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking crypto-bigint v0.2.11
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]     Checking der v0.4.5
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/der-0.4.5/src/encoder.rs:28:18
[INFO] [stdout]    |
[INFO] [stdout] 28 |             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] 28 |             self.error::<T>(ErrorKind::Failed)?;
[INFO] [stdout]    |                       +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/der-0.4.5/src/encoder.rs:182:18
[INFO] [stdout]     |
[INFO] [stdout] 182 |             self.error(ErrorKind::Overlength)?;
[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] 182 |             self.error::<T>(ErrorKind::Overlength)?;
[INFO] [stdout]     |                       +++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[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 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "a681fb66786ddb0cd8444aca5f0b3a98b3c35a90825c398c61040c19d8fafc8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a681fb66786ddb0cd8444aca5f0b3a98b3c35a90825c398c61040c19d8fafc8e", kill_on_drop: false }`
[INFO] [stdout] a681fb66786ddb0cd8444aca5f0b3a98b3c35a90825c398c61040c19d8fafc8e