[INFO] fetching crate ecdsa-flow 1.0.0...
[INFO] checking ecdsa-flow-1.0.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate ecdsa-flow 1.0.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate ecdsa-flow 1.0.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ecdsa-flow 1.0.0
[INFO] finished tweaking crates.io crate ecdsa-flow 1.0.0
[INFO] tweaked toml for crates.io crate ecdsa-flow 1.0.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 32 packages
[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 block-padding v0.2.1 (latest: v0.3.3)
[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 ff v0.11.1 (latest: v0.13.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding group v0.11.0 (latest: v0.13.0)
[INFO] [stderr]       Adding hex-literal v0.3.4 (latest: v0.4.1)
[INFO] [stderr]       Adding hmac v0.11.0 (latest: v0.12.1)
[INFO] [stderr]       Adding pem-rfc7468 v0.2.4 (latest: v0.7.0)
[INFO] [stderr]       Adding pkcs8 v0.7.6 (latest: v0.10.2)
[INFO] [stderr]       Adding sha3 v0.9.1 (latest: v0.10.8)
[INFO] [stderr]       Adding spki v0.4.1 (latest: v0.7.3)
[INFO] [stderr]       Adding subtle v2.4.1 (latest: v2.5.0)
[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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hex-literal v0.3.4
[INFO] [stderr]   Downloaded zeroize v1.4.3
[INFO] [stderr]   Downloaded elliptic-curve-flow v1.0.0
[INFO] [stderr]   Downloaded const-oid v0.6.2
[INFO] [stderr]   Downloaded spki v0.4.1
[INFO] [stderr]   Downloaded signature-flow v1.0.0
[INFO] [stderr]   Downloaded der v0.4.5
[INFO] [stderr]   Downloaded ff v0.11.1
[INFO] [stderr]   Downloaded group v0.11.0
[INFO] [stderr]   Downloaded crypto-bigint v0.2.11
[INFO] [stderr]   Downloaded base64ct v1.1.1
[INFO] [stderr]   Downloaded pem-rfc7468 v0.2.4
[INFO] [stderr]   Downloaded pkcs8 v0.7.6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1ad8b1aa3adfaa3c935f010ca36e3dfc45b8bbcfa3e4b57f64f48227d49ec775
[INFO] running `Command { std: "docker" "start" "-a" "1ad8b1aa3adfaa3c935f010ca36e3dfc45b8bbcfa3e4b57f64f48227d49ec775", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1ad8b1aa3adfaa3c935f010ca36e3dfc45b8bbcfa3e4b57f64f48227d49ec775", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ad8b1aa3adfaa3c935f010ca36e3dfc45b8bbcfa3e4b57f64f48227d49ec775", kill_on_drop: false }`
[INFO] [stdout] 1ad8b1aa3adfaa3c935f010ca36e3dfc45b8bbcfa3e4b57f64f48227d49ec775
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 424581ac9b08f1baa41833d245cccc83c25aecca6c080c78645834db7373b17e
[INFO] running `Command { std: "docker" "start" "-a" "424581ac9b08f1baa41833d245cccc83c25aecca6c080c78645834db7373b17e", kill_on_drop: false }`
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking const-oid v0.6.2
[INFO] [stderr]     Checking base64ct v1.1.1
[INFO] [stderr]     Checking zeroize v1.4.3
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]    Compiling hex-literal v0.3.4
[INFO] [stderr]     Checking signature-flow v1.0.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking der v0.4.5
[INFO] [stderr]     Checking ff v0.11.1
[INFO] [stderr]     Checking crypto-bigint v0.2.11
[INFO] [stderr]     Checking pem-rfc7468 v0.2.4
[INFO] [stderr]     Checking group v0.11.0
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking spki v0.4.1
[INFO] [stderr]     Checking pkcs8 v0.7.6
[INFO] [stderr]     Checking elliptic-curve-flow v1.0.0
[INFO] [stderr]     Checking ecdsa-flow v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.19s
[INFO] running `Command { std: "docker" "inspect" "424581ac9b08f1baa41833d245cccc83c25aecca6c080c78645834db7373b17e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "424581ac9b08f1baa41833d245cccc83c25aecca6c080c78645834db7373b17e", kill_on_drop: false }`
[INFO] [stdout] 424581ac9b08f1baa41833d245cccc83c25aecca6c080c78645834db7373b17e
[INFO] checking ecdsa-flow-1.0.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate ecdsa-flow 1.0.0 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate ecdsa-flow 1.0.0 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ecdsa-flow 1.0.0
[INFO] finished tweaking crates.io crate ecdsa-flow 1.0.0
[INFO] tweaked toml for crates.io crate ecdsa-flow 1.0.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 32 packages
[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 block-padding v0.2.1 (latest: v0.3.3)
[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 ff v0.11.1 (latest: v0.13.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding group v0.11.0 (latest: v0.13.0)
[INFO] [stderr]       Adding hex-literal v0.3.4 (latest: v0.4.1)
[INFO] [stderr]       Adding hmac v0.11.0 (latest: v0.12.1)
[INFO] [stderr]       Adding pem-rfc7468 v0.2.4 (latest: v0.7.0)
[INFO] [stderr]       Adding pkcs8 v0.7.6 (latest: v0.10.2)
[INFO] [stderr]       Adding sha3 v0.9.1 (latest: v0.10.8)
[INFO] [stderr]       Adding spki v0.4.1 (latest: v0.7.3)
[INFO] [stderr]       Adding subtle v2.4.1 (latest: v2.5.0)
[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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a1d227800b1d061dc3c91866cd056604be239cdf37d5c1ce49596d16b0d8a53f
[INFO] running `Command { std: "docker" "start" "-a" "a1d227800b1d061dc3c91866cd056604be239cdf37d5c1ce49596d16b0d8a53f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1d227800b1d061dc3c91866cd056604be239cdf37d5c1ce49596d16b0d8a53f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1d227800b1d061dc3c91866cd056604be239cdf37d5c1ce49596d16b0d8a53f", kill_on_drop: false }`
[INFO] [stdout] a1d227800b1d061dc3c91866cd056604be239cdf37d5c1ce49596d16b0d8a53f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d3b251769c9ea8aae8fe7acf2a45ee9ca76686b89f104c8b315e128d799b1de
[INFO] running `Command { std: "docker" "start" "-a" "9d3b251769c9ea8aae8fe7acf2a45ee9ca76686b89f104c8b315e128d799b1de", kill_on_drop: false }`
[INFO] [stderr]     Checking const-oid v0.6.2
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking base64ct v1.1.1
[INFO] [stderr]     Checking zeroize v1.4.3
[INFO] [stderr]    Compiling hex-literal v0.3.4
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking signature-flow v1.0.0
[INFO] [stderr]     Checking der v0.4.5
[INFO] [stderr]     Checking pem-rfc7468 v0.2.4
[INFO] [stderr]     Checking ff v0.11.1
[INFO] [stderr]     Checking crypto-bigint v0.2.11
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking group v0.11.0
[INFO] [stderr]     Checking spki v0.4.1
[INFO] [stderr]     Checking pkcs8 v0.7.6
[INFO] [stderr]     Checking elliptic-curve-flow v1.0.0
[INFO] [stderr]     Checking ecdsa-flow v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.41s
[INFO] running `Command { std: "docker" "inspect" "9d3b251769c9ea8aae8fe7acf2a45ee9ca76686b89f104c8b315e128d799b1de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d3b251769c9ea8aae8fe7acf2a45ee9ca76686b89f104c8b315e128d799b1de", kill_on_drop: false }`
[INFO] [stdout] 9d3b251769c9ea8aae8fe7acf2a45ee9ca76686b89f104c8b315e128d799b1de