[INFO] fetching crate nomino 0.4.4...
[INFO] checking nomino-0.4.4 against try#6f12b8fe67b4eed2e838dab803ed9493b9d62c0f for pr-79073
[INFO] extracting crate nomino 0.4.4 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate nomino 0.4.4 on toolchain 6f12b8fe67b4eed2e838dab803ed9493b9d62c0f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nomino 0.4.4
[INFO] finished tweaking crates.io crate nomino 0.4.4
[INFO] tweaked toml for crates.io crate nomino 0.4.4 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate nomino 0.4.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded hermit-abi v0.1.11
[INFO] [stderr]   Downloaded yaml-rust v0.3.5
[INFO] [stderr]   Downloaded serde_json v1.0.51
[INFO] [stderr]   Downloaded regex v1.4.1
[INFO] [stderr]   Downloaded regex-syntax v0.6.20
[INFO] [stderr]   Downloaded bstr v0.2.12
[INFO] [stderr]   Downloaded serde v1.0.106
[INFO] [stderr]   Downloaded natord v1.0.9
[INFO] [stderr]   Downloaded colored v2.0.0
[INFO] [stderr]   Downloaded ryu v1.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee77e728aef2a51ac7a7efb5a3c337785a1cde3b234dbb41d568c98903bbf132
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ee77e728aef2a51ac7a7efb5a3c337785a1cde3b234dbb41d568c98903bbf132", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee77e728aef2a51ac7a7efb5a3c337785a1cde3b234dbb41d568c98903bbf132", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee77e728aef2a51ac7a7efb5a3c337785a1cde3b234dbb41d568c98903bbf132", kill_on_drop: false }`
[INFO] [stdout] ee77e728aef2a51ac7a7efb5a3c337785a1cde3b234dbb41d568c98903bbf132
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+6f12b8fe67b4eed2e838dab803ed9493b9d62c0f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ae35508c9aca61e01f9675bff2fdd15b02af51832e5630203ef900106fdfa373
[INFO] running `Command { std: "docker" "start" "-a" "ae35508c9aca61e01f9675bff2fdd15b02af51832e5630203ef900106fdfa373", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling serde v1.0.106
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking itoa v0.4.5
[INFO] [stderr]     Checking predicates-core v1.0.0
[INFO] [stderr]     Checking yaml-rust v0.3.5
[INFO] [stderr]     Checking regex-syntax v0.6.20
[INFO] [stderr]    Compiling nomino v0.4.4 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking encode_unicode v0.3.6
[INFO] [stderr]     Checking treeline v0.1.0
[INFO] [stderr]     Checking natord v1.0.9
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking predicates-tree v1.0.0
[INFO] [stderr]     Checking predicates v1.0.4
[INFO] [stderr] error: failed to run custom build command for `nomino v0.4.4 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/nomino-175f4b4e100833b9/build-script-build` (exit code: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: Os { code: 30, kind: Other, message: "Read-only file system" }
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ae35508c9aca61e01f9675bff2fdd15b02af51832e5630203ef900106fdfa373", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae35508c9aca61e01f9675bff2fdd15b02af51832e5630203ef900106fdfa373", kill_on_drop: false }`
[INFO] [stdout] ae35508c9aca61e01f9675bff2fdd15b02af51832e5630203ef900106fdfa373