[INFO] fetching crate nameme_core 0.2.3...
[INFO] testing nameme_core-0.2.3 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate nameme_core 0.2.3 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate nameme_core 0.2.3
[INFO] finished tweaking crates.io crate nameme_core 0.2.3
[INFO] tweaked toml for crates.io crate nameme_core 0.2.3 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate nameme_core 0.2.3 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "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" "+caccb4d0368bd918ef6668af8e13834d07040417" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 30 packages to latest compatible versions
[INFO] [stderr]       Adding env_logger v0.9.3 (available: v0.11.8)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a55c4b473ea27c7fb4ccbe57d82feb6613fdb6fe8fe907c5373a26c9e33020b1
[INFO] running `Command { std: "docker" "start" "-a" "a55c4b473ea27c7fb4ccbe57d82feb6613fdb6fe8fe907c5373a26c9e33020b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a55c4b473ea27c7fb4ccbe57d82feb6613fdb6fe8fe907c5373a26c9e33020b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a55c4b473ea27c7fb4ccbe57d82feb6613fdb6fe8fe907c5373a26c9e33020b1", kill_on_drop: false }`
[INFO] [stdout] a55c4b473ea27c7fb4ccbe57d82feb6613fdb6fe8fe907c5373a26c9e33020b1
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0bb1e56bd162bd81788b890de86a55b351acbb7b6c20ed279f64c4353f246756
[INFO] running `Command { std: "docker" "start" "-a" "0bb1e56bd162bd81788b890de86a55b351acbb7b6c20ed279f64c4353f246756", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.19
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling libc v0.2.176
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling serde_json v1.0.145
[INFO] [stderr]    Compiling regex-syntax v0.8.6
[INFO] [stderr]    Compiling termcolor v1.4.1
[INFO] [stderr]    Compiling log v0.4.28
[INFO] [stderr]    Compiling humantime v2.3.0
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling regex v1.11.3
[INFO] [stderr]    Compiling env_logger v0.9.3
[INFO] [stderr]    Compiling nameme_core v0.2.3 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `nameme_core v0.2.3 (/opt/rustwide/workdir)`
[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/nameme_core-1a8f293b93b48539/build-script-build` (exit status: 1)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   Error: Read-only file system (os error 30)
[INFO] [stderr] 
[INFO] [stderr]   Stack backtrace:
[INFO] [stderr]      0: anyhow::error::<impl core::convert::From<E> for anyhow::Error>::from
[INFO] [stderr]      1: <core::result::Result<T,F> as core::ops::try_trait::FromResidual<core::result::Result<core::convert::Infallible,E>>>::from_residual
[INFO] [stderr]      2: build_script_build::main
[INFO] [stderr]      3: core::ops::function::FnOnce::call_once
[INFO] [stderr]      4: std::sys::backtrace::__rust_begin_short_backtrace
[INFO] [stderr]      5: std::rt::lang_start::{{closure}}
[INFO] [stderr]      6: core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once
[INFO] [stderr]                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/core/src/ops/function.rs:287:21
[INFO] [stderr]      7: std::panicking::catch_unwind::do_call
[INFO] [stderr]                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:590:40
[INFO] [stderr]      8: std::panicking::catch_unwind
[INFO] [stderr]                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:553:19
[INFO] [stderr]      9: std::panic::catch_unwind
[INFO] [stderr]                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panic.rs:359:14
[INFO] [stderr]     10: std::rt::lang_start_internal::{{closure}}
[INFO] [stderr]                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/rt.rs:175:24
[INFO] [stderr]     11: std::panicking::catch_unwind::do_call
[INFO] [stderr]                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:590:40
[INFO] [stderr]     12: std::panicking::catch_unwind
[INFO] [stderr]                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panicking.rs:553:19
[INFO] [stderr]     13: std::panic::catch_unwind
[INFO] [stderr]                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/panic.rs:359:14
[INFO] [stderr]     14: std::rt::lang_start_internal
[INFO] [stderr]                at /rustc/caccb4d0368bd918ef6668af8e13834d07040417/library/std/src/rt.rs:171:5
[INFO] [stderr]     15: std::rt::lang_start
[INFO] [stderr]     16: main
[INFO] [stderr]     17: <unknown>
[INFO] [stderr]     18: __libc_start_main
[INFO] [stderr]     19: _start
[INFO] running `Command { std: "docker" "inspect" "0bb1e56bd162bd81788b890de86a55b351acbb7b6c20ed279f64c4353f246756", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0bb1e56bd162bd81788b890de86a55b351acbb7b6c20ed279f64c4353f246756", kill_on_drop: false }`
[INFO] [stdout] 0bb1e56bd162bd81788b890de86a55b351acbb7b6c20ed279f64c4353f246756