[INFO] cloning repository https://github.com/ConradMearns/erreta
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ConradMearns/erreta" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FConradMearns%2Ferreta", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FConradMearns%2Ferreta'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3152b6b1299e57ba35d8143798bff31769b51dfe
[INFO] checking ConradMearns/erreta against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FConradMearns%2Ferreta" "/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/ConradMearns/erreta 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/ConradMearns/erreta
[INFO] finished tweaking git repo https://github.com/ConradMearns/erreta
[INFO] tweaked toml for git repo https://github.com/ConradMearns/erreta written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ConradMearns/erreta 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 wasm-bindgen-shared v0.2.53
[INFO] [stderr]   Downloaded proc-macro2 v1.0.6
[INFO] [stderr]   Downloaded sourcefile v0.1.4
[INFO] [stderr]   Downloaded weedle v0.10.0
[INFO] [stderr]   Downloaded wasm-bindgen-macro-support v0.2.53
[INFO] [stderr]   Downloaded wasm-bindgen-macro v0.2.53
[INFO] [stderr]   Downloaded synstructure v0.12.1
[INFO] [stderr]   Downloaded wasm-bindgen-backend v0.2.53
[INFO] [stderr]   Downloaded cc v1.0.46
[INFO] [stderr]   Downloaded js-sys v0.3.30
[INFO] [stderr]   Downloaded wasm-bindgen v0.2.53
[INFO] [stderr]   Downloaded syn v1.0.7
[INFO] [stderr]   Downloaded libc v0.2.65
[INFO] [stderr]   Downloaded web-sys v0.3.30
[INFO] [stderr]   Downloaded unicode-segmentation v1.5.0
[INFO] [stderr]   Downloaded memchr v2.2.1
[INFO] [stderr]   Downloaded wasm-bindgen-webidl v0.2.53
[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] 5819b998afb2bf7bf4ae94daff1e81832c7cbf5c372f40df7692573c2b6cd58b
[INFO] running `Command { std: "docker" "start" "-a" "5819b998afb2bf7bf4ae94daff1e81832c7cbf5c372f40df7692573c2b6cd58b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5819b998afb2bf7bf4ae94daff1e81832c7cbf5c372f40df7692573c2b6cd58b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5819b998afb2bf7bf4ae94daff1e81832c7cbf5c372f40df7692573c2b6cd58b", kill_on_drop: false }`
[INFO] [stdout] 5819b998afb2bf7bf4ae94daff1e81832c7cbf5c372f40df7692573c2b6cd58b
[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] 70069d6c510fca69a48da6bef1a5d56c62e5dd73da8709e948dcb385bc3ae4df
[INFO] running `Command { std: "docker" "start" "-a" "70069d6c510fca69a48da6bef1a5d56c62e5dd73da8709e948dcb385bc3ae4df", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling syn v1.0.7
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.53
[INFO] [stderr]    Compiling bumpalo v2.6.0
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling cc v1.0.46
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling unicode-segmentation v1.5.0
[INFO] [stderr]    Compiling wasm-bindgen v0.2.53
[INFO] [stderr]    Compiling sourcefile v0.1.4
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling weedle v0.10.0
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.53
[INFO] [stderr]    Compiling synstructure v0.12.1
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.53
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling wasm-bindgen-webidl v0.2.53
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.53
[INFO] [stderr]    Compiling web-sys v0.3.30
[INFO] [stderr]     Checking js-sys v0.3.30
[INFO] [stderr]     Checking erreta v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.38s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nom v4.2.3, wasm-bindgen v0.2.53
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "70069d6c510fca69a48da6bef1a5d56c62e5dd73da8709e948dcb385bc3ae4df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70069d6c510fca69a48da6bef1a5d56c62e5dd73da8709e948dcb385bc3ae4df", kill_on_drop: false }`
[INFO] [stdout] 70069d6c510fca69a48da6bef1a5d56c62e5dd73da8709e948dcb385bc3ae4df