[INFO] fetching crate rabuf 0.1.20...
[INFO] checking rabuf-0.1.20 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate rabuf 0.1.20 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate rabuf 0.1.20 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rabuf 0.1.20
[INFO] finished tweaking crates.io crate rabuf 0.1.20
[INFO] tweaked toml for crates.io crate rabuf 0.1.20 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "generate-lockfile" "--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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd3d7f2e9bed3a2b85fbcdbcc3c3bb5b6899e81c67e7e8297f581ae6fe8ca29d
[INFO] running `Command { std: "docker" "start" "-a" "fd3d7f2e9bed3a2b85fbcdbcc3c3bb5b6899e81c67e7e8297f581ae6fe8ca29d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd3d7f2e9bed3a2b85fbcdbcc3c3bb5b6899e81c67e7e8297f581ae6fe8ca29d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd3d7f2e9bed3a2b85fbcdbcc3c3bb5b6899e81c67e7e8297f581ae6fe8ca29d", kill_on_drop: false }`
[INFO] [stdout] fd3d7f2e9bed3a2b85fbcdbcc3c3bb5b6899e81c67e7e8297f581ae6fe8ca29d
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f04966d96d2f701bfafdcf4aaa77e12ba999695fe78c5f82d1ef0d2cebdf253
[INFO] running `Command { std: "docker" "start" "-a" "0f04966d96d2f701bfafdcf4aaa77e12ba999695fe78c5f82d1ef0d2cebdf253", kill_on_drop: false }`
[INFO] [stderr]     Checking rabuf v0.1.20 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.24s
[INFO] running `Command { std: "docker" "inspect" "0f04966d96d2f701bfafdcf4aaa77e12ba999695fe78c5f82d1ef0d2cebdf253", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f04966d96d2f701bfafdcf4aaa77e12ba999695fe78c5f82d1ef0d2cebdf253", kill_on_drop: false }`
[INFO] [stdout] 0f04966d96d2f701bfafdcf4aaa77e12ba999695fe78c5f82d1ef0d2cebdf253