[INFO] cloning repository https://github.com/mmheroes/mmheroes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mmheroes/mmheroes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmheroes%2Fmmheroes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmheroes%2Fmmheroes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aa45ac956c1eca6042a52537b02aa33d7b3176f7
[INFO] testing mmheroes/mmheroes against 1.59.0 for beta-1.60-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmheroes%2Fmmheroes" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mmheroes/mmheroes on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mmheroes/mmheroes
[INFO] finished tweaking git repo https://github.com/mmheroes/mmheroes
[INFO] tweaked toml for git repo https://github.com/mmheroes/mmheroes written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/mmheroes/mmheroes already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "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-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7f7ef166fe83ad77d55f5466f9d2e9ddc08af0091f376f1ff45671f2c20528d
[INFO] running `Command { std: "docker" "start" "-a" "b7f7ef166fe83ad77d55f5466f9d2e9ddc08af0091f376f1ff45671f2c20528d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7f7ef166fe83ad77d55f5466f9d2e9ddc08af0091f376f1ff45671f2c20528d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7f7ef166fe83ad77d55f5466f9d2e9ddc08af0091f376f1ff45671f2c20528d", kill_on_drop: false }`
[INFO] [stdout] b7f7ef166fe83ad77d55f5466f9d2e9ddc08af0091f376f1ff45671f2c20528d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e633d22e8faf99fa199356aa5f2c28738f38ea50249b55e2678cf480294aef33
[INFO] running `Command { std: "docker" "start" "-a" "e633d22e8faf99fa199356aa5f2c28738f38ea50249b55e2678cf480294aef33", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling pkg-config v0.3.24
[INFO] [stderr]    Compiling mmheroes-core v0.1.0 (/opt/rustwide/workdir/mmheroes-core-rs)
[INFO] [stderr]    Compiling assert_matches v1.5.0
[INFO] [stderr]    Compiling unicode-segmentation v1.8.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr] error: failed to run custom build command for `mmheroes-core v0.1.0 (/opt/rustwide/workdir/mmheroes-core-rs)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/mmheroes-core-5bcb6580e5c726de/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-changed=build.rs
[INFO] [stderr]   cargo:rerun-if-changed=Cargo.toml
[INFO] [stderr]   cargo:rerun-if-changed=iOS/Cargo.toml
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: IoError(Os { code: 30, kind: ReadOnlyFilesystem, 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" "e633d22e8faf99fa199356aa5f2c28738f38ea50249b55e2678cf480294aef33", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e633d22e8faf99fa199356aa5f2c28738f38ea50249b55e2678cf480294aef33", kill_on_drop: false }`
[INFO] [stdout] e633d22e8faf99fa199356aa5f2c28738f38ea50249b55e2678cf480294aef33