[INFO] fetching crate function_group 0.2.4...
[INFO] checking function_group-0.2.4 against try#3652eaba14e5de752eaa5a8ffcac7132f9244f07 for pr-139272
[INFO] extracting crate function_group 0.2.4 into /workspace/builds/worker-0-tc2/source
[INFO] validating manifest of crates.io crate function_group 0.2.4 on toolchain 3652eaba14e5de752eaa5a8ffcac7132f9244f07
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3652eaba14e5de752eaa5a8ffcac7132f9244f07" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate function_group 0.2.4
[INFO] finished tweaking crates.io crate function_group 0.2.4
[INFO] tweaked toml for crates.io crate function_group 0.2.4 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3652eaba14e5de752eaa5a8ffcac7132f9244f07" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 4 packages to latest compatible versions
[INFO] [stderr]       Adding quote v0.6.13 (available: v1.0.40)
[INFO] [stderr]       Adding syn v0.15.44 (available: v2.0.101)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3652eaba14e5de752eaa5a8ffcac7132f9244f07" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+3652eaba14e5de752eaa5a8ffcac7132f9244f07" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3fae7b5faecdae0712d8be5a521230a2d76b68da75909e50641a462d3dedfec7
[INFO] running `Command { std: "docker" "start" "-a" "3fae7b5faecdae0712d8be5a521230a2d76b68da75909e50641a462d3dedfec7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3fae7b5faecdae0712d8be5a521230a2d76b68da75909e50641a462d3dedfec7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fae7b5faecdae0712d8be5a521230a2d76b68da75909e50641a462d3dedfec7", kill_on_drop: false }`
[INFO] [stdout] 3fae7b5faecdae0712d8be5a521230a2d76b68da75909e50641a462d3dedfec7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "+3652eaba14e5de752eaa5a8ffcac7132f9244f07" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ac986e4459ab75154337c28fbbebfe7945e0e020398824b10f98a0510be6d4f
[INFO] running `Command { std: "docker" "start" "-a" "1ac986e4459ab75154337c28fbbebfe7945e0e020398824b10f98a0510be6d4f", kill_on_drop: false }`
[INFO] [stderr] error: couldn't prepare build directories
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to create directory `/opt/rustwide/target/debug/examples`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] running `Command { std: "docker" "inspect" "1ac986e4459ab75154337c28fbbebfe7945e0e020398824b10f98a0510be6d4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ac986e4459ab75154337c28fbbebfe7945e0e020398824b10f98a0510be6d4f", kill_on_drop: false }`
[INFO] [stdout] 1ac986e4459ab75154337c28fbbebfe7945e0e020398824b10f98a0510be6d4f