[INFO] cloning repository https://github.com/Fraser999/runtime-arg-builder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Fraser999/runtime-arg-builder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFraser999%2Fruntime-arg-builder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFraser999%2Fruntime-arg-builder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 94c513526ec527f131e0c7cb7816ab3bda867fbb
[INFO] checking Fraser999/runtime-arg-builder against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFraser999%2Fruntime-arg-builder" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Fraser999/runtime-arg-builder 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] removed /workspace/builds/worker-4-tc1/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/Fraser999/runtime-arg-builder
[INFO] finished tweaking git repo https://github.com/Fraser999/runtime-arg-builder
[INFO] tweaked toml for git repo https://github.com/Fraser999/runtime-arg-builder written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Fraser999/runtime-arg-builder 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] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded base16 v0.2.1
[INFO] [stderr]   Downloaded displaydoc v0.1.7
[INFO] [stderr]   Downloaded datasize_derive v0.2.9
[INFO] [stderr]   Downloaded datasize v0.2.9
[INFO] [stderr]   Downloaded uint v0.9.1
[INFO] [stderr]   Downloaded k256 v0.7.3
[INFO] [stderr]   Downloaded casper-types v1.3.3
[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] fd46b53c3d219d017cf3373777bfa66b2934f5bb1cd9afdedf4bdb114d5019ce
[INFO] running `Command { std: "docker" "start" "-a" "fd46b53c3d219d017cf3373777bfa66b2934f5bb1cd9afdedf4bdb114d5019ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd46b53c3d219d017cf3373777bfa66b2934f5bb1cd9afdedf4bdb114d5019ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd46b53c3d219d017cf3373777bfa66b2934f5bb1cd9afdedf4bdb114d5019ce", kill_on_drop: false }`
[INFO] [stdout] fd46b53c3d219d017cf3373777bfa66b2934f5bb1cd9afdedf4bdb114d5019ce
[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] 74963cd8ce566575b56d3aa86156a3f391f01cdc54b540422eb80da77af94570
[INFO] running `Command { std: "docker" "start" "-a" "74963cd8ce566575b56d3aa86156a3f391f01cdc54b540422eb80da77af94570", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]     Checking wyz v0.2.0
[INFO] [stderr]     Checking funty v1.1.0
[INFO] [stderr]     Checking radium v0.3.0
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking opaque-debug v0.3.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking bitvec v0.18.5
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking cpufeatures v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking base16 v0.2.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking hex_fmt v0.3.0
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.10.1
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking signature v1.2.2
[INFO] [stderr]     Checking hmac v0.10.1
[INFO] [stderr]     Checking blake2 v0.9.2
[INFO] [stderr]     Checking sha2 v0.9.8
[INFO] [stderr]     Checking ed25519 v1.2.0
[INFO] [stderr]     Checking ff v0.8.0
[INFO] [stderr]     Checking group v0.8.0
[INFO] [stderr]    Compiling synstructure v0.12.5
[INFO] [stderr]    Compiling zeroize_derive v1.1.0
[INFO] [stderr]    Compiling datasize_derive v0.2.9
[INFO] [stderr]    Compiling displaydoc v0.1.7
[INFO] [stderr]    Compiling num-derive v0.3.3
[INFO] [stderr]     Checking zeroize v1.4.1
[INFO] [stderr]     Checking datasize v0.2.9
[INFO] [stderr]     Checking elliptic-curve v0.8.5
[INFO] [stderr]     Checking curve25519-dalek v3.2.0
[INFO] [stderr]     Checking ecdsa v0.10.2
[INFO] [stderr]     Checking ed25519-dalek v1.0.1
[INFO] [stderr]     Checking k256 v0.7.3
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking uint v0.9.1
[INFO] [stderr]     Checking casper-types v1.3.3
[INFO] [stderr]     Checking runtime-arg-builder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.62s
[INFO] running `Command { std: "docker" "inspect" "74963cd8ce566575b56d3aa86156a3f391f01cdc54b540422eb80da77af94570", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74963cd8ce566575b56d3aa86156a3f391f01cdc54b540422eb80da77af94570", kill_on_drop: false }`
[INFO] [stdout] 74963cd8ce566575b56d3aa86156a3f391f01cdc54b540422eb80da77af94570