[INFO] cloning repository https://github.com/techno-tanoC/knock_down [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/techno-tanoC/knock_down" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftechno-tanoC%2Fknock_down", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftechno-tanoC%2Fknock_down'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 053dbcc47b0803e077c1f397cb8c8ef4354c89f0 [INFO] checking techno-tanoC/knock_down against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftechno-tanoC%2Fknock_down" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/techno-tanoC/knock_down 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-2-tc1/source/.cargo/config [INFO] started tweaking git repo https://github.com/techno-tanoC/knock_down [INFO] finished tweaking git repo https://github.com/techno-tanoC/knock_down [INFO] tweaked toml for git repo https://github.com/techno-tanoC/knock_down written to /workspace/builds/worker-2-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/techno-tanoC/knock_down 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] Downloading crates ... [INFO] [stderr] Downloaded tokio v0.2.14 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] de1bad30371e8d7bbbf4635d9864f6bb9f6e6244dd4331cefbd3df93a4667b12 [INFO] running `Command { std: "docker" "start" "-a" "de1bad30371e8d7bbbf4635d9864f6bb9f6e6244dd4331cefbd3df93a4667b12", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "de1bad30371e8d7bbbf4635d9864f6bb9f6e6244dd4331cefbd3df93a4667b12", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "de1bad30371e8d7bbbf4635d9864f6bb9f6e6244dd4331cefbd3df93a4667b12", kill_on_drop: false }` [INFO] [stdout] de1bad30371e8d7bbbf4635d9864f6bb9f6e6244dd4331cefbd3df93a4667b12 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] ca58f3914a4a1de2f86218b888a27725bb86a638c0d7110ac4da30cd2ae6703c [INFO] running `Command { std: "docker" "start" "-a" "ca58f3914a4a1de2f86218b888a27725bb86a638c0d7110ac4da30cd2ae6703c", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.67 [INFO] [stderr] Compiling proc-macro2 v1.0.9 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Checking cfg-if v0.1.10 [INFO] [stderr] Compiling unicode-xid v0.2.0 [INFO] [stderr] Compiling syn v1.0.16 [INFO] [stderr] Checking slab v0.4.2 [INFO] [stderr] Compiling memchr v2.3.3 [INFO] [stderr] Checking arc-swap v0.4.4 [INFO] [stderr] Checking futures-core v0.3.4 [INFO] [stderr] Checking pin-project-lite v0.1.4 [INFO] [stderr] Checking fnv v1.0.6 [INFO] [stderr] Checking bytes v0.5.4 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Checking iovec v0.1.4 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking num_cpus v1.12.0 [INFO] [stderr] Checking signal-hook-registry v1.2.0 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Checking mio v0.6.21 [INFO] [stderr] Checking mio-uds v0.6.7 [INFO] [stderr] Compiling tokio-macros v0.2.5 [INFO] [stderr] Checking tokio v0.2.14 [INFO] [stderr] Checking knock_down v0.2.0 (/opt/rustwide/workdir) [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.01s [INFO] running `Command { std: "docker" "inspect" "ca58f3914a4a1de2f86218b888a27725bb86a638c0d7110ac4da30cd2ae6703c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "ca58f3914a4a1de2f86218b888a27725bb86a638c0d7110ac4da30cd2ae6703c", kill_on_drop: false }` [INFO] [stdout] ca58f3914a4a1de2f86218b888a27725bb86a638c0d7110ac4da30cd2ae6703c