[INFO] fetching crate metaverse 0.0.1...
[INFO] checking metaverse-0.0.1 against try#b047d5f4496a7526d91d0dddea494c05853f2a7b for pr-122661-1
[INFO] extracting crate metaverse 0.0.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate metaverse 0.0.1
[INFO] finished tweaking crates.io crate metaverse 0.0.1
[INFO] tweaked toml for crates.io crate metaverse 0.0.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate metaverse 0.0.1 on toolchain b047d5f4496a7526d91d0dddea494c05853f2a7b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] error: failed to write /workspace/builds/worker-2-tc2/source/Cargo.lock
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] checking metaverse-0.0.1 against try#b047d5f4496a7526d91d0dddea494c05853f2a7b for pr-122661-1
[INFO] extracting crate metaverse 0.0.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate metaverse 0.0.1
[INFO] finished tweaking crates.io crate metaverse 0.0.1
[INFO] tweaked toml for crates.io crate metaverse 0.0.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate metaverse 0.0.1 on toolchain b047d5f4496a7526d91d0dddea494c05853f2a7b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "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" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: mkdir /var/lib/docker/overlay2/4bbaa84a7aae514103213d843799f746ec0891f0a3b603dc622072bdced3a0da-init: no space left on device
[INFO] checking metaverse-0.0.1 against try#b047d5f4496a7526d91d0dddea494c05853f2a7b for pr-122661-1
[INFO] extracting crate metaverse 0.0.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate metaverse 0.0.1
[INFO] finished tweaking crates.io crate metaverse 0.0.1
[INFO] tweaked toml for crates.io crate metaverse 0.0.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate metaverse 0.0.1 on toolchain b047d5f4496a7526d91d0dddea494c05853f2a7b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "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" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c214f77628d0bbee34c4f6dd36ae8f63a749123b66f20fd8056c550b707df12
[INFO] running `Command { std: "docker" "start" "-a" "8c214f77628d0bbee34c4f6dd36ae8f63a749123b66f20fd8056c550b707df12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c214f77628d0bbee34c4f6dd36ae8f63a749123b66f20fd8056c550b707df12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c214f77628d0bbee34c4f6dd36ae8f63a749123b66f20fd8056c550b707df12", kill_on_drop: false }`
[INFO] [stdout] 8c214f77628d0bbee34c4f6dd36ae8f63a749123b66f20fd8056c550b707df12
[INFO] checking metaverse-0.0.1 against try#b047d5f4496a7526d91d0dddea494c05853f2a7b for pr-122661-1
[INFO] extracting crate metaverse 0.0.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate metaverse 0.0.1
[INFO] finished tweaking crates.io crate metaverse 0.0.1
[INFO] tweaked toml for crates.io crate metaverse 0.0.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate metaverse 0.0.1 on toolchain b047d5f4496a7526d91d0dddea494c05853f2a7b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "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" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c8a8800fc5773c61e5fd9fb2badea755823c138bbde3b01e7a83f39725540ec
[INFO] running `Command { std: "docker" "start" "-a" "4c8a8800fc5773c61e5fd9fb2badea755823c138bbde3b01e7a83f39725540ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c8a8800fc5773c61e5fd9fb2badea755823c138bbde3b01e7a83f39725540ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c8a8800fc5773c61e5fd9fb2badea755823c138bbde3b01e7a83f39725540ec", kill_on_drop: false }`
[INFO] [stdout] 4c8a8800fc5773c61e5fd9fb2badea755823c138bbde3b01e7a83f39725540ec
[INFO] checking metaverse-0.0.1 against try#b047d5f4496a7526d91d0dddea494c05853f2a7b for pr-122661-1
[INFO] extracting crate metaverse 0.0.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate metaverse 0.0.1
[INFO] finished tweaking crates.io crate metaverse 0.0.1
[INFO] tweaked toml for crates.io crate metaverse 0.0.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate metaverse 0.0.1 on toolchain b047d5f4496a7526d91d0dddea494c05853f2a7b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "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" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 57bae4f7b2036536c62e1d38e37fb49cdee973d6ef2fdf6abadf06e9792dbecf
[INFO] running `Command { std: "docker" "start" "-a" "57bae4f7b2036536c62e1d38e37fb49cdee973d6ef2fdf6abadf06e9792dbecf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "57bae4f7b2036536c62e1d38e37fb49cdee973d6ef2fdf6abadf06e9792dbecf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "57bae4f7b2036536c62e1d38e37fb49cdee973d6ef2fdf6abadf06e9792dbecf", kill_on_drop: false }`
[INFO] [stdout] 57bae4f7b2036536c62e1d38e37fb49cdee973d6ef2fdf6abadf06e9792dbecf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f710fdd46122ad9b1c0ac19d29daa4a6f7f86bf464fc4efb5cefbee5166a155
[INFO] running `Command { std: "docker" "start" "-a" "7f710fdd46122ad9b1c0ac19d29daa4a6f7f86bf464fc4efb5cefbee5166a155", kill_on_drop: false }`
[INFO] [stderr]     Checking metaverse v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `count` is never read
[INFO] [stdout]  --> src/utils/placeholder.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct PH {
[INFO] [stdout]   |            -- field in this struct
[INFO] [stdout] 2 |     count: i32,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `count` is never read
[INFO] [stdout]  --> src/utils/placeholder.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub struct PH {
[INFO] [stdout]   |            -- field in this struct
[INFO] [stdout] 2 |     count: i32,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] running `Command { std: "docker" "inspect" "7f710fdd46122ad9b1c0ac19d29daa4a6f7f86bf464fc4efb5cefbee5166a155", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f710fdd46122ad9b1c0ac19d29daa4a6f7f86bf464fc4efb5cefbee5166a155", kill_on_drop: false }`
[INFO] [stdout] 7f710fdd46122ad9b1c0ac19d29daa4a6f7f86bf464fc4efb5cefbee5166a155