[INFO] fetching crate QuqqU_mgrep 0.1.1...
[INFO] checking QuqqU_mgrep-0.1.1 against try#5cafabc9f16561d7796554d5d241c3068e2bd97f for pr-135852
[INFO] extracting crate QuqqU_mgrep 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate QuqqU_mgrep 0.1.1 on toolchain 5cafabc9f16561d7796554d5d241c3068e2bd97f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate QuqqU_mgrep 0.1.1
[INFO] finished tweaking crates.io crate QuqqU_mgrep 0.1.1
[INFO] tweaked toml for crates.io crate QuqqU_mgrep 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate QuqqU_mgrep 0.1.1 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" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: mkdir /var/lib/docker/overlay2/6c595b25669fab0b218aac1de590344ec30070dfa0bad051c4f5be38f44c6023-init/diff: no space left on device
[INFO] checking QuqqU_mgrep-0.1.1 against try#5cafabc9f16561d7796554d5d241c3068e2bd97f for pr-135852
[INFO] extracting crate QuqqU_mgrep 0.1.1 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate QuqqU_mgrep 0.1.1 on toolchain 5cafabc9f16561d7796554d5d241c3068e2bd97f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate QuqqU_mgrep 0.1.1
[INFO] finished tweaking crates.io crate QuqqU_mgrep 0.1.1
[INFO] tweaked toml for crates.io crate QuqqU_mgrep 0.1.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate QuqqU_mgrep 0.1.1 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" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d81d73e4167d4565adc2896b308d12c2e89836713a3a1101555695e5c69ff85e
[INFO] running `Command { std: "docker" "start" "-a" "d81d73e4167d4565adc2896b308d12c2e89836713a3a1101555695e5c69ff85e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d81d73e4167d4565adc2896b308d12c2e89836713a3a1101555695e5c69ff85e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d81d73e4167d4565adc2896b308d12c2e89836713a3a1101555695e5c69ff85e", kill_on_drop: false }`
[INFO] [stdout] d81d73e4167d4565adc2896b308d12c2e89836713a3a1101555695e5c69ff85e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5cafabc9f16561d7796554d5d241c3068e2bd97f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b26ce7f8ea0b0266e6b6dc5e1fea75e2b51bbdb790d977c70f581b26ef1bbc32
[INFO] running `Command { std: "docker" "start" "-a" "b26ce7f8ea0b0266e6b6dc5e1fea75e2b51bbdb790d977c70f581b26ef1bbc32", kill_on_drop: false }`
[INFO] [stderr]     Checking QuqqU_mgrep v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `QuqqU_mgrep` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `quqq_u_mgrep`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "b26ce7f8ea0b0266e6b6dc5e1fea75e2b51bbdb790d977c70f581b26ef1bbc32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b26ce7f8ea0b0266e6b6dc5e1fea75e2b51bbdb790d977c70f581b26ef1bbc32", kill_on_drop: false }`
[INFO] [stdout] b26ce7f8ea0b0266e6b6dc5e1fea75e2b51bbdb790d977c70f581b26ef1bbc32