[INFO] cloning repository https://github.com/mishazharov/der-repro
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mishazharov/der-repro" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmishazharov%2Fder-repro", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmishazharov%2Fder-repro'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d306d5062c8d7f303d0fa09a49ac858540a849e0
[INFO] checking mishazharov/der-repro against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmishazharov%2Fder-repro" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mishazharov/der-repro 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/mishazharov/der-repro
[INFO] finished tweaking git repo https://github.com/mishazharov/der-repro
[INFO] tweaked toml for git repo https://github.com/mishazharov/der-repro written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/mishazharov/der-repro 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 218612dcd834c8a7996c58e0c56456e6ac296db422f547a44c883383de74e48d
[INFO] running `Command { std: "docker" "start" "-a" "218612dcd834c8a7996c58e0c56456e6ac296db422f547a44c883383de74e48d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "218612dcd834c8a7996c58e0c56456e6ac296db422f547a44c883383de74e48d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "218612dcd834c8a7996c58e0c56456e6ac296db422f547a44c883383de74e48d", kill_on_drop: false }`
[INFO] [stdout] 218612dcd834c8a7996c58e0c56456e6ac296db422f547a44c883383de74e48d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 5672fd5c953e90d5bb8c669b339d0b23005d3c919ce42ed5ccc40ced330be41c
[INFO] running `Command { std: "docker" "start" "-a" "5672fd5c953e90d5bb8c669b339d0b23005d3c919ce42ed5ccc40ced330be41c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.30
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling libc v0.2.105
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.73
[INFO] [stderr]    Compiling typenum v1.14.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling bumpalo v3.8.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling serde_json v1.0.71
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling generic-array v0.14.4
[INFO] [stderr]     Checking subtle v2.4.1
[INFO] [stderr]    Compiling wasm-bindgen v0.2.73
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking crypto-bigint v0.2.11
[INFO] [stderr]     Checking der v0.4.4
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.73
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.73
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.73
[INFO] [stderr]     Checking der-repro v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.37s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: wasm-bindgen v0.2.73
[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" "5672fd5c953e90d5bb8c669b339d0b23005d3c919ce42ed5ccc40ced330be41c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5672fd5c953e90d5bb8c669b339d0b23005d3c919ce42ed5ccc40ced330be41c", kill_on_drop: false }`
[INFO] [stdout] 5672fd5c953e90d5bb8c669b339d0b23005d3c919ce42ed5ccc40ced330be41c