[INFO] fetching crate brilfmt 0.1.0...
[INFO] testing brilfmt-0.1.0 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate brilfmt 0.1.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate brilfmt 0.1.0
[INFO] finished tweaking crates.io crate brilfmt 0.1.0
[INFO] tweaked toml for crates.io crate brilfmt 0.1.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate brilfmt 0.1.0 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate brilfmt 0.1.0 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded snafu v0.8.5
[INFO] [stderr]   Downloaded bril-frontend v0.3.0
[INFO] [stderr]   Downloaded annotate-snippets v0.11.5
[INFO] [stderr]   Downloaded winnow v0.7.1
[INFO] [stderr]   Downloaded cargo_toml v0.21.0
[INFO] [stderr]   Downloaded inform v0.3.4
[INFO] [stderr]   Downloaded toml_edit v0.22.23
[INFO] [stderr]   Downloaded snafu-derive v0.8.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ceb77bfd515f200e3fa68c55a47e2a4a557dd084a711674dae2d9fdb1053ffd2
[INFO] running `Command { std: "docker" "start" "-a" "ceb77bfd515f200e3fa68c55a47e2a4a557dd084a711674dae2d9fdb1053ffd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ceb77bfd515f200e3fa68c55a47e2a4a557dd084a711674dae2d9fdb1053ffd2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ceb77bfd515f200e3fa68c55a47e2a4a557dd084a711674dae2d9fdb1053ffd2", kill_on_drop: false }`
[INFO] [stdout] ceb77bfd515f200e3fa68c55a47e2a4a557dd084a711674dae2d9fdb1053ffd2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d4cfdc5d9dbeeaf05a2d199e6f477d0bcc547491e626e9bba27108a4651371c
[INFO] running `Command { std: "docker" "start" "-a" "7d4cfdc5d9dbeeaf05a2d199e6f477d0bcc547491e626e9bba27108a4651371c", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.25
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling hashbrown v0.15.2
[INFO] [stderr]    Compiling winnow v0.7.1
[INFO] [stderr]    Compiling beef v0.5.2
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling annotate-snippets v0.11.5
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling indexmap v2.7.1
[INFO] [stderr]    Compiling logos-codegen v0.15.0
[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]    Compiling snafu-derive v0.8.5
[INFO] [stderr]    Compiling logos-derive v0.15.0
[INFO] [stderr]    Compiling logos v0.15.0
[INFO] [stderr]    Compiling snafu v0.8.5
[INFO] [stderr]    Compiling toml_datetime v0.6.8
[INFO] [stderr]    Compiling serde_spanned v0.6.8
[INFO] [stderr]    Compiling toml_edit v0.22.23
[INFO] [stderr]    Compiling toml v0.8.19
[INFO] [stderr]    Compiling cargo_toml v0.21.0
[INFO] [stderr]    Compiling inform v0.3.4
[INFO] [stderr] error: failed to run custom build command for `inform v0.3.4`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/inform-d2c3396b142803a6/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] running `Command { std: "docker" "inspect" "7d4cfdc5d9dbeeaf05a2d199e6f477d0bcc547491e626e9bba27108a4651371c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d4cfdc5d9dbeeaf05a2d199e6f477d0bcc547491e626e9bba27108a4651371c", kill_on_drop: false }`
[INFO] [stdout] 7d4cfdc5d9dbeeaf05a2d199e6f477d0bcc547491e626e9bba27108a4651371c