[INFO] cloning repository https://github.com/hogehogei/milkv-duo-rust-helloworld [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hogehogei/milkv-duo-rust-helloworld" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhogehogei%2Fmilkv-duo-rust-helloworld", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhogehogei%2Fmilkv-duo-rust-helloworld'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0c57b9b88fb31be12c3760d19091345d0de6fa5b [INFO] testing hogehogei/milkv-duo-rust-helloworld against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhogehogei%2Fmilkv-duo-rust-helloworld" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/hogehogei/milkv-duo-rust-helloworld on toolchain ebf0cf75d368c035f4c7e7246d203bd469ee4a51 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/hogehogei/milkv-duo-rust-helloworld [INFO] finished tweaking git repo https://github.com/hogehogei/milkv-duo-rust-helloworld [INFO] tweaked toml for git repo https://github.com/hogehogei/milkv-duo-rust-helloworld written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/hogehogei/milkv-duo-rust-helloworld 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" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] Error response from daemon: symlink /proc/mounts /var/lib/docker/overlay2/0950f278d8dfad133ad452d4a20c2b1abff1cfb28a931de7a3eb451284d6b6c2-init/merged/etc/mtab: file exists sandbox container could not be created: command failed: exit status: 1 Error response from daemon: symlink /proc/mounts /var/lib/docker/overlay2/0950f278d8dfad133ad452d4a20c2b1abff1cfb28a931de7a3eb451284d6b6c2-init/merged/etc/mtab: file exists Caused by: command failed: exit status: 1 Error response from daemon: symlink /proc/mounts /var/lib/docker/overlay2/0950f278d8dfad133ad452d4a20c2b1abff1cfb28a931de7a3eb451284d6b6c2-init/merged/etc/mtab: file exists