[INFO] fetching crate nitrogen-lib 0.2.1...
[INFO] testing nitrogen-lib-0.2.1 against 1.100.0-beta.1+cargoflags=--release for beta-release-1.100-2
[INFO] extracting crate nitrogen-lib 0.2.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate nitrogen-lib 0.2.1
[INFO] finished tweaking crates.io crate nitrogen-lib 0.2.1
[INFO] tweaked toml for crates.io crate nitrogen-lib 0.2.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate nitrogen-lib 0.2.1 on toolchain 1.100.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate nitrogen-lib 0.2.1 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" "+1.100.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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] c8ff70bcad8564a68d3735f2b4726aa15b1b05b3555cce258cde7bb130322e82
[INFO] running `Command { std: "docker" "start" "c8ff70bcad8564a68d3735f2b4726aa15b1b05b3555cce258cde7bb130322e82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8ff70bcad8564a68d3735f2b4726aa15b1b05b3555cce258cde7bb130322e82", 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" "c8ff70bcad8564a68d3735f2b4726aa15b1b05b3555cce258cde7bb130322e82" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8ff70bcad8564a68d3735f2b4726aa15b1b05b3555cce258cde7bb130322e82", 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" "c8ff70bcad8564a68d3735f2b4726aa15b1b05b3555cce258cde7bb130322e82" "/opt/rustwide/cargo-home/bin/cargo" "+1.100.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.5
[INFO] [stderr]    Compiling syn v1.0.103
[INFO] [stderr]    Compiling once_cell v1.15.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.9
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling bytes v1.2.1
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.4
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling futures-core v0.3.25
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling tokio v1.21.2
[INFO] [stderr]    Compiling slab v0.4.7
[INFO] [stderr]    Compiling itoa v1.0.4
[INFO] [stderr]    Compiling tracing-core v0.1.30
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling futures-util v0.3.25
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling futures-sink v0.3.25
[INFO] [stderr]    Compiling futures-channel v0.3.25
[INFO] [stderr]    Compiling http v0.2.8
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling time-core v0.1.0
[INFO] [stderr]    Compiling num_threads v0.1.6
[INFO] [stderr]    Compiling try-lock v0.2.3
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling tower-service v0.3.2
[INFO] [stderr]    Compiling want v0.3.0
[INFO] [stderr]    Compiling httpdate v1.0.2
[INFO] [stderr]    Compiling either v1.8.0
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling socket2 v0.4.7
[INFO] [stderr]    Compiling mio v0.8.5
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling time v0.3.16
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling semver v1.0.14
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]    Compiling bytes-utils v0.1.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling tower-layer v0.3.2
[INFO] [stderr]    Compiling openssl-probe v0.1.5
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling aho-corasick v0.7.19
[INFO] [stderr]    Compiling http-body v0.4.5
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling fastrand v1.8.0
[INFO] [stderr]    Compiling zeroize v1.5.7
[INFO] [stderr]    Compiling aws-types v0.49.0
[INFO] [stderr]    Compiling form_urlencoded v1.1.0
[INFO] [stderr]    Compiling urlencoding v2.1.2
[INFO] [stderr]    Compiling cpufeatures v0.2.5
[INFO] [stderr]    Compiling xmlparser v0.13.3
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling backtrace v0.3.66
[INFO] [stderr]    Compiling walkdir v2.3.2
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling gimli v0.26.2
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling unicode-xid v0.2.4
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling miniz_oxide v0.5.4
[INFO] [stderr]    Compiling aws-smithy-xml v0.49.0
[INFO] [stderr]    Compiling object v0.29.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling aws-smithy-types v0.49.0
[INFO] [stderr]    Compiling os_str_bytes v6.3.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.3
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling clap_lex v0.3.0
[INFO] [stderr]    Compiling tracing-log v0.1.3
[INFO] [stderr]    Compiling digest v0.10.5
[INFO] [stderr]    Compiling sha2 v0.10.6
[INFO] [stderr]    Compiling aws-smithy-query v0.49.0
[INFO] [stderr]    Compiling aws-smithy-json v0.49.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling sharded-slab v0.1.4
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling rust-embed-utils v7.3.0
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling thread_local v1.1.4
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling nitrogen-lib v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr] error: failed to run custom build command for `nitrogen-lib v0.2.1 (/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/nitrogen-lib/cf6bb5934656e506/out/build_script_build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (1910) panicked at build.rs:17:46:
[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:     0x5a9860802011 - <<std[617be2ca0a6fd877]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[a373ad73a504971]::fmt::Display>::fmt
[INFO] [stderr]      1:     0x5a9860812c1a - core[a373ad73a504971]::fmt::write
[INFO] [stderr]      2:     0x5a986080559c - <std[617be2ca0a6fd877]::sys::stdio::unix::Stderr as core[a373ad73a504971]::io::write::Write>::write_fmt
[INFO] [stderr]      3:     0x5a98607eb916 - std[617be2ca0a6fd877]::panicking::default_hook::{closure#0}
[INFO] [stderr]      4:     0x5a98607fe241 - std[617be2ca0a6fd877]::panicking::default_hook
[INFO] [stderr]      5:     0x5a98607fe3fb - std[617be2ca0a6fd877]::panicking::panic_with_hook
[INFO] [stderr]      6:     0x5a98607eb9c2 - std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}
[INFO] [stderr]      7:     0x5a98607e49b9 - std[617be2ca0a6fd877]::sys::backtrace::__rust_end_short_backtrace::<std[617be2ca0a6fd877]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]      8:     0x5a98607ec18d - __rustc[ea4f61d10b84890b]::rust_begin_unwind
[INFO] [stderr]      9:     0x5a986081334c - core[a373ad73a504971]::panicking::panic_fmt
[INFO] [stderr]     10:     0x5a9860813122 - core[a373ad73a504971]::result::unwrap_failed
[INFO] [stderr]     11:     0x5a98607d9b41 - build_script_build[db755aa2f7449d0c]::main
[INFO] [stderr]     12:     0x5a98607da423 - <fn() as core[a373ad73a504971]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     13:     0x5a98607d94d6 - std[617be2ca0a6fd877]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     14:     0x5a98607d9879 - std[617be2ca0a6fd877]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     15:     0x5a98607fd9e8 - std[617be2ca0a6fd877]::rt::lang_start_internal
[INFO] [stderr]     16:     0x5a98607d9401 - std[617be2ca0a6fd877]::rt::lang_start::<()>
[INFO] [stderr]     17:     0x5a98607da495 - main
[INFO] [stderr]     18:     0x77284f951601 - <unknown>
[INFO] [stderr]     19:     0x77284f951718 - __libc_start_main
[INFO] [stderr]     20:     0x5a98607d90f5 - _start
[INFO] [stderr]     21:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c8ff70bcad8564a68d3735f2b4726aa15b1b05b3555cce258cde7bb130322e82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8ff70bcad8564a68d3735f2b4726aa15b1b05b3555cce258cde7bb130322e82", kill_on_drop: false }`
[INFO] [stdout] c8ff70bcad8564a68d3735f2b4726aa15b1b05b3555cce258cde7bb130322e82
