[INFO] cloning repository https://github.com/lx70770/rust-learn [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lx70770/rust-learn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flx70770%2Frust-learn", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flx70770%2Frust-learn'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 5a2ae403689e3bd4bc154416577f86475a866204 [INFO] checking lx70770/rust-learn against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flx70770%2Frust-learn" "/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/lx70770/rust-learn 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/lx70770/rust-learn [INFO] finished tweaking git repo https://github.com/lx70770/rust-learn [INFO] tweaked toml for git repo https://github.com/lx70770/rust-learn written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/lx70770/rust-learn 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] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded rustc-demangle v0.1.17 [INFO] [stderr] Downloaded error-chain v0.10.0 [INFO] [stderr] Downloaded smallvec v0.4.5 [INFO] [stderr] Downloaded ferris-says v0.1.2 [INFO] [stderr] Downloaded backtrace v0.3.52 [INFO] [stderr] Downloaded libc v0.2.79 [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 142058786e07df62e8f7090fa9de5f70092cd598d57071a93a5b5c3839520de1 [INFO] running `Command { std: "docker" "start" "-a" "142058786e07df62e8f7090fa9de5f70092cd598d57071a93a5b5c3839520de1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "142058786e07df62e8f7090fa9de5f70092cd598d57071a93a5b5c3839520de1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "142058786e07df62e8f7090fa9de5f70092cd598d57071a93a5b5c3839520de1", kill_on_drop: false }` [INFO] [stdout] 142058786e07df62e8f7090fa9de5f70092cd598d57071a93a5b5c3839520de1 [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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4c00f061ffc0ef43ca5890febd321625362246d8c3ddca7e99d4ebfc6a459062 [INFO] running `Command { std: "docker" "start" "-a" "4c00f061ffc0ef43ca5890febd321625362246d8c3ddca7e99d4ebfc6a459062", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.79 [INFO] [stderr] Checking adler v0.2.3 [INFO] [stderr] Checking gimli v0.22.0 [INFO] [stderr] Checking rustc-demangle v0.1.17 [INFO] [stderr] Checking object v0.20.0 [INFO] [stderr] Checking unicode-width v0.1.8 [INFO] [stderr] Checking smallvec v0.4.5 [INFO] [stderr] Compiling miniz_oxide v0.4.3 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking clap v2.33.3 [INFO] [stderr] Checking addr2line v0.13.0 [INFO] [stderr] Checking backtrace v0.3.52 [INFO] [stderr] Checking error-chain v0.10.0 [INFO] [stderr] Checking ferris-says v0.1.2 [INFO] [stderr] Checking hello-rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.78s [INFO] running `Command { std: "docker" "inspect" "4c00f061ffc0ef43ca5890febd321625362246d8c3ddca7e99d4ebfc6a459062", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4c00f061ffc0ef43ca5890febd321625362246d8c3ddca7e99d4ebfc6a459062", kill_on_drop: false }` [INFO] [stdout] 4c00f061ffc0ef43ca5890febd321625362246d8c3ddca7e99d4ebfc6a459062