[INFO] cloning repository https://github.com/gauravmahto/rust-playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gauravmahto/rust-playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgauravmahto%2Frust-playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgauravmahto%2Frust-playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a82d9f81fca744ec6761b0d2217f61b157a55620
[INFO] checking gauravmahto/rust-playground against master#ca2b74f1ae5075d62e223c0a91574a1fc3f51c7c for pr-114776-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgauravmahto%2Frust-playground" "/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/gauravmahto/rust-playground on toolchain ca2b74f1ae5075d62e223c0a91574a1fc3f51c7c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ca2b74f1ae5075d62e223c0a91574a1fc3f51c7c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gauravmahto/rust-playground
[INFO] finished tweaking git repo https://github.com/gauravmahto/rust-playground
[INFO] tweaked toml for git repo https://github.com/gauravmahto/rust-playground written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/gauravmahto/rust-playground 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" "+ca2b74f1ae5075d62e223c0a91574a1fc3f51c7c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+ca2b74f1ae5075d62e223c0a91574a1fc3f51c7c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 520db1c7115468505d3e94a64776f5124ea7b5f3b5db0b4d7c1cc200b36860a0
[INFO] running `Command { std: "docker" "start" "-a" "520db1c7115468505d3e94a64776f5124ea7b5f3b5db0b4d7c1cc200b36860a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "520db1c7115468505d3e94a64776f5124ea7b5f3b5db0b4d7c1cc200b36860a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "520db1c7115468505d3e94a64776f5124ea7b5f3b5db0b4d7c1cc200b36860a0", kill_on_drop: false }`
[INFO] [stdout] 520db1c7115468505d3e94a64776f5124ea7b5f3b5db0b4d7c1cc200b36860a0
[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_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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+ca2b74f1ae5075d62e223c0a91574a1fc3f51c7c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bda842ea979ea8960e8bccc671c01ca825bf498b2ff52ac42c92056b8d100594
[INFO] running `Command { std: "docker" "start" "-a" "bda842ea979ea8960e8bccc671c01ca825bf498b2ff52ac42c92056b8d100594", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking getrandom v0.2.10
[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 rust-playground v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `Command { std: "docker" "inspect" "bda842ea979ea8960e8bccc671c01ca825bf498b2ff52ac42c92056b8d100594", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bda842ea979ea8960e8bccc671c01ca825bf498b2ff52ac42c92056b8d100594", kill_on_drop: false }`
[INFO] [stdout] bda842ea979ea8960e8bccc671c01ca825bf498b2ff52ac42c92056b8d100594