[INFO] fetching crate buf-read-ext 0.4.0...
[INFO] checking buf-read-ext-0.4.0 against master#9bfa31f632912180dc742809bcc51a97f2d7079d for pr-140151
[INFO] extracting crate buf-read-ext 0.4.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate buf-read-ext 0.4.0 on toolchain 9bfa31f632912180dc742809bcc51a97f2d7079d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate buf-read-ext 0.4.0
[INFO] finished tweaking crates.io crate buf-read-ext 0.4.0
[INFO] tweaked toml for crates.io crate buf-read-ext 0.4.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2bddb98dd5c435e136789b877a6532e58a94f58c9fb84ed8e1eb71fc638d5189
[INFO] running `Command { std: "docker" "start" "-a" "2bddb98dd5c435e136789b877a6532e58a94f58c9fb84ed8e1eb71fc638d5189", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bddb98dd5c435e136789b877a6532e58a94f58c9fb84ed8e1eb71fc638d5189", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bddb98dd5c435e136789b877a6532e58a94f58c9fb84ed8e1eb71fc638d5189", kill_on_drop: false }`
[INFO] [stdout] 2bddb98dd5c435e136789b877a6532e58a94f58c9fb84ed8e1eb71fc638d5189
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+9bfa31f632912180dc742809bcc51a97f2d7079d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a5a6ab9cf892ece4fbb13b918b61603a50f6a25908057e38fa1eb5b5da57aa0a
[INFO] running `Command { std: "docker" "start" "-a" "a5a6ab9cf892ece4fbb13b918b61603a50f6a25908057e38fa1eb5b5da57aa0a", kill_on_drop: false }`
[INFO] [stderr]     Checking buf-read-ext v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "a5a6ab9cf892ece4fbb13b918b61603a50f6a25908057e38fa1eb5b5da57aa0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5a6ab9cf892ece4fbb13b918b61603a50f6a25908057e38fa1eb5b5da57aa0a", kill_on_drop: false }`
[INFO] [stdout] a5a6ab9cf892ece4fbb13b918b61603a50f6a25908057e38fa1eb5b5da57aa0a