[INFO] fetching crate docima 0.9.1...
[INFO] testing docima-0.9.1 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate docima 0.9.1 into /workspace/builds/worker-107/source
[INFO] validating manifest of crates.io crate docima 0.9.1 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate docima 0.9.1
[INFO] finished tweaking crates.io crate docima 0.9.1
[INFO] tweaked toml for crates.io crate docima 0.9.1 written to /workspace/builds/worker-107/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--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 pathfinder_geometry v0.5.1
[INFO] [stderr]   Downloaded deflate v0.9.1
[INFO] [stderr]   Downloaded servo-fontconfig v0.5.1
[INFO] [stderr]   Downloaded pathfinder_simd v0.5.1
[INFO] [stderr]   Downloaded freetype v0.7.0
[INFO] [stderr]   Downloaded png v0.17.1
[INFO] [stderr]   Downloaded expat-sys v2.1.6
[INFO] [stderr]   Downloaded docima v0.8.1-builddep
[INFO] [stderr]   Downloaded rand_xoshiro v0.6.0
[INFO] [stderr]   Downloaded servo-fontconfig-sys v5.1.0
[INFO] [stderr]   Downloaded plotters-bitmap v0.3.1
[INFO] [stderr]   Downloaded font-kit v0.10.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d956175625cb732c411665a7d685a460079f312ec27c63fd24aad86c5e2cec03
[INFO] running `Command { std: "docker" "start" "-a" "d956175625cb732c411665a7d685a460079f312ec27c63fd24aad86c5e2cec03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d956175625cb732c411665a7d685a460079f312ec27c63fd24aad86c5e2cec03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d956175625cb732c411665a7d685a460079f312ec27c63fd24aad86c5e2cec03", kill_on_drop: false }`
[INFO] [stdout] d956175625cb732c411665a7d685a460079f312ec27c63fd24aad86c5e2cec03
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-107/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 151cd1dce49c68d60a418efb4ba461e0d8362c2cf1f1c5f34c9288028dbb617f
[INFO] running `Command { std: "docker" "start" "-a" "151cd1dce49c68d60a418efb4ba461e0d8362c2cf1f1c5f34c9288028dbb617f", kill_on_drop: false }`
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling color_quant v1.1.0
[INFO] [stderr]    Compiling plotters-backend v0.3.2
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling jpeg-decoder v0.1.22
[INFO] [stderr]    Compiling bytemuck v1.7.2
[INFO] [stderr]    Compiling weezl v0.1.5
[INFO] [stderr]    Compiling float-ord v0.2.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling data-encoding v2.3.2
[INFO] [stderr]    Compiling ttf-parser v0.12.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling servo-fontconfig-sys v5.1.0
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling rand_xoshiro v0.6.0
[INFO] [stderr]    Compiling miniz_oxide v0.3.7
[INFO] [stderr]    Compiling deflate v0.8.6
[INFO] [stderr]    Compiling deflate v0.9.1
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling plotters-svg v0.3.1
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling gif v0.11.2
[INFO] [stderr]    Compiling freetype-sys v0.13.1
[INFO] [stderr]    Compiling expat-sys v2.1.6
[INFO] [stderr]    Compiling png v0.16.8
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling png v0.17.1
[INFO] [stderr]    Compiling freetype v0.7.0
[INFO] [stderr]    Compiling servo-fontconfig v0.5.1
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling rustc_version v0.3.3
[INFO] [stderr]    Compiling docima v0.8.1-builddep
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling pathfinder_simd v0.5.1
[INFO] [stderr]    Compiling image v0.23.14
[INFO] [stderr]    Compiling pathfinder_geometry v0.5.1
[INFO] [stderr]    Compiling font-kit v0.10.1
[INFO] [stderr]    Compiling plotters-bitmap v0.3.1
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling docima v0.9.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `docima v0.9.1 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/docima-1f9e28822e776d79/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: IoError(Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" })
[INFO] running `Command { std: "docker" "inspect" "151cd1dce49c68d60a418efb4ba461e0d8362c2cf1f1c5f34c9288028dbb617f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "151cd1dce49c68d60a418efb4ba461e0d8362c2cf1f1c5f34c9288028dbb617f", kill_on_drop: false }`
[INFO] [stdout] 151cd1dce49c68d60a418efb4ba461e0d8362c2cf1f1c5f34c9288028dbb617f