[INFO] cloning repository https://github.com/FenderLang/fender_example_plugin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FenderLang/fender_example_plugin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFenderLang%2Ffender_example_plugin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFenderLang%2Ffender_example_plugin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6c7279cfd941f43914ab44b022d3da2c55ae6b20
[INFO] checking FenderLang/fender_example_plugin against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFenderLang%2Ffender_example_plugin" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FenderLang/fender_example_plugin 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/FenderLang/fender_example_plugin
[INFO] finished tweaking git repo https://github.com/FenderLang/fender_example_plugin
[INFO] tweaked toml for git repo https://github.com/FenderLang/fender_example_plugin written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/FenderLang/fender_example_plugin 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]     Updating git repository `https://github.com/FenderLang/Fender`
[INFO] [stderr]     Updating git repository `https://github.com/FenderLang/Flux`
[INFO] [stderr]     Updating git repository `https://github.com/FenderLang/Freight`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded bumpalo v3.12.1
[INFO] [stderr]   Downloaded libc v0.2.142
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] e09d21a53f0a27fb692fd1712a8d2d2c0f437920281f26def1afa1ab6895b670
[INFO] running `Command { std: "docker" "start" "-a" "e09d21a53f0a27fb692fd1712a8d2d2c0f437920281f26def1afa1ab6895b670", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e09d21a53f0a27fb692fd1712a8d2d2c0f437920281f26def1afa1ab6895b670", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e09d21a53f0a27fb692fd1712a8d2d2c0f437920281f26def1afa1ab6895b670", kill_on_drop: false }`
[INFO] [stdout] e09d21a53f0a27fb692fd1712a8d2d2c0f437920281f26def1afa1ab6895b670
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] ee568124f056e17eab799dd14c40d0776ce75194d2c085a1e685704878c534c5
[INFO] running `Command { std: "docker" "start" "-a" "ee568124f056e17eab799dd14c40d0776ce75194d2c085a1e685704878c534c5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]     Checking bumpalo v3.12.1
[INFO] [stderr]     Checking freight_vm v0.1.0 (https://github.com/FenderLang/Freight?rev=a06053e83b736f08621a7eb66840577edaefc021#a06053e8)
[INFO] [stderr]     Checking libloading v0.8.0
[INFO] [stderr]     Checking flux_bnf v0.1.0 (https://github.com/FenderLang/Flux?rev=0b7b25e36313e76f0aa43d5f61b2f07a99322a72#0b7b25e3)
[INFO] [stderr]     Checking getrandom v0.2.9
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking fender v0.1.0 (https://github.com/FenderLang/Fender?rev=c268abae87f48c229de23b991d594e33e6d98b85#c268abae)
[INFO] [stderr]     Checking example_plugin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.54s
[INFO] running `Command { std: "docker" "inspect" "ee568124f056e17eab799dd14c40d0776ce75194d2c085a1e685704878c534c5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee568124f056e17eab799dd14c40d0776ce75194d2c085a1e685704878c534c5", kill_on_drop: false }`
[INFO] [stdout] ee568124f056e17eab799dd14c40d0776ce75194d2c085a1e685704878c534c5
[INFO] checking FenderLang/fender_example_plugin against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFenderLang%2Ffender_example_plugin" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FenderLang/fender_example_plugin 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/FenderLang/fender_example_plugin
[INFO] finished tweaking git repo https://github.com/FenderLang/fender_example_plugin
[INFO] tweaked toml for git repo https://github.com/FenderLang/fender_example_plugin written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/FenderLang/fender_example_plugin 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] c2f0e13008eb2de70a3cbf3e1a37d17af695305d5e8e0635f683c7b5fe735911
[INFO] running `Command { std: "docker" "start" "-a" "c2f0e13008eb2de70a3cbf3e1a37d17af695305d5e8e0635f683c7b5fe735911", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2f0e13008eb2de70a3cbf3e1a37d17af695305d5e8e0635f683c7b5fe735911", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2f0e13008eb2de70a3cbf3e1a37d17af695305d5e8e0635f683c7b5fe735911", kill_on_drop: false }`
[INFO] [stdout] c2f0e13008eb2de70a3cbf3e1a37d17af695305d5e8e0635f683c7b5fe735911
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 4a81042ec5e1e877df4fd9915c10758e1e48d93ea7ed58aaeb5abd221ed9dfb3
[INFO] running `Command { std: "docker" "start" "-a" "4a81042ec5e1e877df4fd9915c10758e1e48d93ea7ed58aaeb5abd221ed9dfb3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.142
[INFO] [stderr]     Checking bumpalo v3.12.1
[INFO] [stderr]     Checking freight_vm v0.1.0 (https://github.com/FenderLang/Freight?rev=a06053e83b736f08621a7eb66840577edaefc021#a06053e8)
[INFO] [stderr]     Checking libloading v0.8.0
[INFO] [stderr]     Checking flux_bnf v0.1.0 (https://github.com/FenderLang/Flux?rev=0b7b25e36313e76f0aa43d5f61b2f07a99322a72#0b7b25e3)
[INFO] [stderr]     Checking getrandom v0.2.9
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking fender v0.1.0 (https://github.com/FenderLang/Fender?rev=c268abae87f48c229de23b991d594e33e6d98b85#c268abae)
[INFO] [stderr]     Checking example_plugin v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.73s
[INFO] running `Command { std: "docker" "inspect" "4a81042ec5e1e877df4fd9915c10758e1e48d93ea7ed58aaeb5abd221ed9dfb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a81042ec5e1e877df4fd9915c10758e1e48d93ea7ed58aaeb5abd221ed9dfb3", kill_on_drop: false }`
[INFO] [stdout] 4a81042ec5e1e877df4fd9915c10758e1e48d93ea7ed58aaeb5abd221ed9dfb3