[INFO] fetching crate graphite_mc_constants 0.1.0...
[INFO] testing graphite_mc_constants-0.1.0 against 1.99.0-beta.8+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate graphite_mc_constants 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate graphite_mc_constants 0.1.0
[INFO] finished tweaking crates.io crate graphite_mc_constants 0.1.0
[INFO] tweaked toml for crates.io crate graphite_mc_constants 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate graphite_mc_constants 0.1.0 on toolchain 1.99.0-beta.8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "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" "+1.99.0-beta.8" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 37 packages to highest compatible versions
[INFO] [stderr]       Adding convert_case v0.5.0 (available: v0.12.0)
[INFO] [stderr]       Adding indexmap v1.9.3 (available: v2.14.2)
[INFO] [stderr]       Adding num_enum v0.5.11 (available: v0.7.6)
[INFO] [stderr]       Adding thiserror v1.0.69 (available: v2.0.21)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded readonly v0.2.14
[INFO] [stderr]   Downloaded graphite_binary v0.1.0
[INFO] [stderr]   Downloaded graphite_binary_macros v0.1.0
[INFO] [stderr]   Downloaded graphite_mc_protocol v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] c4500382132d79e3461bc1c5f85377b0b6399504c457a34da79023f342c7dd4b
[INFO] running `Command { std: "docker" "start" "c4500382132d79e3461bc1c5f85377b0b6399504c457a34da79023f342c7dd4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4500382132d79e3461bc1c5f85377b0b6399504c457a34da79023f342c7dd4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c4500382132d79e3461bc1c5f85377b0b6399504c457a34da79023f342c7dd4b" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4500382132d79e3461bc1c5f85377b0b6399504c457a34da79023f342c7dd4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "c4500382132d79e3461bc1c5f85377b0b6399504c457a34da79023f342c7dd4b" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.8" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.119
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v3.0.9
[INFO] [stderr]    Compiling thiserror v1.0.69
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling cesu8 v1.1.0
[INFO] [stderr]    Compiling convert_case v0.5.0
[INFO] [stderr]    Compiling serde_json v1.0.154
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling serde_derive v1.0.229
[INFO] [stderr]    Compiling readonly v0.2.14
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling graphite_binary_macros v0.1.0
[INFO] [stderr]    Compiling num_enum_derive v0.5.11
[INFO] [stderr]    Compiling num_enum v0.5.11
[INFO] [stderr]    Compiling graphite_binary v0.1.0
[INFO] [stderr]    Compiling graphite_mc_protocol v0.1.0
[INFO] [stderr]    Compiling graphite_mc_constants v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `name` and `block` are never read
[INFO] [stdout]   --> build/block.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 84 | pub struct CustomPlacer {
[INFO] [stdout]    |            ------------ fields in this struct
[INFO] [stdout] 85 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 86 |     pub block: String,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CustomPlacer` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: failed to run custom build command for `graphite_mc_constants v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_RELEASE_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/release/build/graphite_mc_constants-aff353bd4ea4d3df/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (526) panicked at build.rs:48:42:
[INFO] [stderr]   called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x612452917011 - <<std[70759c8f55707aa4]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[df12db4294e9bfd3]::fmt::Display>::fmt
[INFO] [stderr]      1:     0x61245292bc8a - core[df12db4294e9bfd3]::fmt::write
[INFO] [stderr]      2:     0x61245291af7c - <std[70759c8f55707aa4]::sys::stdio::unix::Stderr as core[df12db4294e9bfd3]::io::write::Write>::write_fmt
[INFO] [stderr]      3:     0x6124528ff796 - std[70759c8f55707aa4]::panicking::default_hook::{closure#0}
[INFO] [stderr]      4:     0x612452912fe1 - std[70759c8f55707aa4]::panicking::default_hook
[INFO] [stderr]      5:     0x61245291319b - std[70759c8f55707aa4]::panicking::panic_with_hook
[INFO] [stderr]      6:     0x6124528ff842 - std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}
[INFO] [stderr]      7:     0x6124528f8169 - std[70759c8f55707aa4]::sys::backtrace::__rust_end_short_backtrace::<std[70759c8f55707aa4]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]      8:     0x61245290016d - __rustc[8fa7c3cbc660c2b3]::rust_begin_unwind
[INFO] [stderr]      9:     0x61245292c3fc - core[df12db4294e9bfd3]::panicking::panic_fmt
[INFO] [stderr]     10:     0x61245292c1d2 - core[df12db4294e9bfd3]::result::unwrap_failed
[INFO] [stderr]     11:     0x61245288bc5a - build_script_build[4806224ed629553b]::file_src
[INFO] [stderr]     12:     0x61245285e3e1 - build_script_build[4806224ed629553b]::block::write_block_rs
[INFO] [stderr]     13:     0x6124528635ce - build_script_build[4806224ed629553b]::block::write_block_states
[INFO] [stderr]     14:     0x61245288aebe - build_script_build[4806224ed629553b]::main
[INFO] [stderr]     15:     0x61245288e553 - <fn() as core[df12db4294e9bfd3]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     16:     0x612452882ac6 - std[70759c8f55707aa4]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     17:     0x6124528a6739 - std[70759c8f55707aa4]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     18:     0x612452912749 - std[70759c8f55707aa4]::rt::lang_start_internal
[INFO] [stderr]     19:     0x6124528a5e51 - std[70759c8f55707aa4]::rt::lang_start::<()>
[INFO] [stderr]     20:     0x61245288f235 - main
[INFO] [stderr]     21:     0x774cbf34b601 - <unknown>
[INFO] [stderr]     22:     0x774cbf34b718 - __libc_start_main
[INFO] [stderr]     23:     0x612452841b55 - _start
[INFO] [stderr]     24:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "c4500382132d79e3461bc1c5f85377b0b6399504c457a34da79023f342c7dd4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4500382132d79e3461bc1c5f85377b0b6399504c457a34da79023f342c7dd4b", kill_on_drop: false }`
[INFO] [stdout] c4500382132d79e3461bc1c5f85377b0b6399504c457a34da79023f342c7dd4b
