[INFO] cloning repository https://github.com/0xkorin/keymaker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0xkorin/keymaker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xkorin%2Fkeymaker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xkorin%2Fkeymaker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1e3e3bd54a349f68d53c2800b67d793ae614db8d
[INFO] checking 0xkorin/keymaker against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xkorin%2Fkeymaker" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/0xkorin/keymaker 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 git repo https://github.com/0xkorin/keymaker
[INFO] finished tweaking git repo https://github.com/0xkorin/keymaker
[INFO] tweaked toml for git repo https://github.com/0xkorin/keymaker written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/0xkorin/keymaker 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pbkdf2 v0.12.1
[INFO] [stderr]   Downloaded der v0.7.5
[INFO] [stderr]   Downloaded elliptic-curve v0.13.4
[INFO] [stderr]   Downloaded ecdsa v0.16.7
[INFO] [stderr]   Downloaded crypto-bigint v0.5.2
[INFO] [stderr]   Downloaded sec1 v0.7.2
[INFO] [stderr]   Downloaded const-oid v0.9.2
[INFO] [stderr]   Downloaded digest v0.10.6
[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] adeb6dd137500f1791045b8c641822d0bfc373bb2699bb7f1e8cc1a71151c790
[INFO] running `Command { std: "docker" "start" "-a" "adeb6dd137500f1791045b8c641822d0bfc373bb2699bb7f1e8cc1a71151c790", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "adeb6dd137500f1791045b8c641822d0bfc373bb2699bb7f1e8cc1a71151c790", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adeb6dd137500f1791045b8c641822d0bfc373bb2699bb7f1e8cc1a71151c790", kill_on_drop: false }`
[INFO] [stdout] adeb6dd137500f1791045b8c641822d0bfc373bb2699bb7f1e8cc1a71151c790
[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] 0c6349f2517e49b5d10f6590c4cf090e967edf52c3d4748bf885f81209dcb621
[INFO] running `Command { std: "docker" "start" "-a" "0c6349f2517e49b5d10f6590c4cf090e967edf52c3d4748bf885f81209dcb621", kill_on_drop: false }`
[INFO] [stderr]     Checking zeroize v1.6.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking const-oid v0.9.2
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]     Checking base16ct v0.2.0
[INFO] [stderr]     Checking cpufeatures v0.2.7
[INFO] [stderr]     Checking keccak v0.1.4
[INFO] [stderr]     Checking der v0.7.5
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking spki v0.7.2
[INFO] [stderr]     Checking sec1 v0.7.2
[INFO] [stderr]     Checking digest v0.10.6
[INFO] [stderr]     Checking getrandom v0.2.9
[INFO] [stderr]     Checking pkcs8 v0.10.2
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking ff v0.13.0
[INFO] [stderr]     Checking crypto-bigint v0.5.2
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking signature v2.1.0
[INFO] [stderr]     Checking sha2 v0.10.6
[INFO] [stderr]     Checking sha3 v0.10.8
[INFO] [stderr]     Checking ripemd v0.1.3
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]     Checking rfc6979 v0.4.0
[INFO] [stderr]     Checking pbkdf2 v0.12.1
[INFO] [stderr]     Checking elliptic-curve v0.13.4
[INFO] [stderr]     Checking ecdsa v0.16.7
[INFO] [stderr]     Checking k256 v0.13.1
[INFO] [stderr]     Checking keymaker v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.38s
[INFO] running `Command { std: "docker" "inspect" "0c6349f2517e49b5d10f6590c4cf090e967edf52c3d4748bf885f81209dcb621", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c6349f2517e49b5d10f6590c4cf090e967edf52c3d4748bf885f81209dcb621", kill_on_drop: false }`
[INFO] [stdout] 0c6349f2517e49b5d10f6590c4cf090e967edf52c3d4748bf885f81209dcb621
[INFO] checking 0xkorin/keymaker against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xkorin%2Fkeymaker" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/0xkorin/keymaker 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 git repo https://github.com/0xkorin/keymaker
[INFO] finished tweaking git repo https://github.com/0xkorin/keymaker
[INFO] tweaked toml for git repo https://github.com/0xkorin/keymaker written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/0xkorin/keymaker 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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] 4265e616ac5a9dfb8953342f6799c30cb996834bb2aff0993abb66732a10849d
[INFO] running `Command { std: "docker" "start" "-a" "4265e616ac5a9dfb8953342f6799c30cb996834bb2aff0993abb66732a10849d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4265e616ac5a9dfb8953342f6799c30cb996834bb2aff0993abb66732a10849d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4265e616ac5a9dfb8953342f6799c30cb996834bb2aff0993abb66732a10849d", kill_on_drop: false }`
[INFO] [stdout] 4265e616ac5a9dfb8953342f6799c30cb996834bb2aff0993abb66732a10849d
[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] 263f84bec22375c790f03276c6901d207d47f405b114e69a04f556b10e35fa49
[INFO] running `Command { std: "docker" "start" "-a" "263f84bec22375c790f03276c6901d207d47f405b114e69a04f556b10e35fa49", kill_on_drop: false }`
[INFO] [stderr]     Checking zeroize v1.6.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]     Checking const-oid v0.9.2
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]     Checking base16ct v0.2.0
[INFO] [stderr]     Checking cpufeatures v0.2.7
[INFO] [stderr]     Checking keccak v0.1.4
[INFO] [stderr]     Checking der v0.7.5
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking digest v0.10.6
[INFO] [stderr]     Checking spki v0.7.2
[INFO] [stderr]     Checking sec1 v0.7.2
[INFO] [stderr]     Checking hmac v0.12.1
[INFO] [stderr]     Checking sha2 v0.10.6
[INFO] [stderr]     Checking sha3 v0.10.8
[INFO] [stderr]     Checking ripemd v0.1.3
[INFO] [stderr]     Checking getrandom v0.2.9
[INFO] [stderr]     Checking pkcs8 v0.10.2
[INFO] [stderr]     Checking rfc6979 v0.4.0
[INFO] [stderr]     Checking pbkdf2 v0.12.1
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking ff v0.13.0
[INFO] [stderr]     Checking crypto-bigint v0.5.2
[INFO] [stderr]     Checking signature v2.1.0
[INFO] [stderr]     Checking group v0.13.0
[INFO] [stderr]     Checking elliptic-curve v0.13.4
[INFO] [stderr]     Checking ecdsa v0.16.7
[INFO] [stderr]     Checking k256 v0.13.1
[INFO] [stderr]     Checking keymaker v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.08s
[INFO] running `Command { std: "docker" "inspect" "263f84bec22375c790f03276c6901d207d47f405b114e69a04f556b10e35fa49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "263f84bec22375c790f03276c6901d207d47f405b114e69a04f556b10e35fa49", kill_on_drop: false }`
[INFO] [stdout] 263f84bec22375c790f03276c6901d207d47f405b114e69a04f556b10e35fa49