[INFO] cloning repository https://github.com/msd-rs/py-alpha-lib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/msd-rs/py-alpha-lib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmsd-rs%2Fpy-alpha-lib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmsd-rs%2Fpy-alpha-lib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f3d220f7998a7b3a0566d78e8860332b9f9eaf1b
[INFO] checking msd-rs/py-alpha-lib/f3d220f7998a7b3a0566d78e8860332b9f9eaf1b against master#31a9463c6e2794a59ce57a8f37abc6966afc2a58 for pr-156807
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmsd-rs%2Fpy-alpha-lib" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/msd-rs/py-alpha-lib
[INFO] finished tweaking git repo https://github.com/msd-rs/py-alpha-lib
[INFO] tweaked toml for git repo https://github.com/msd-rs/py-alpha-lib written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/msd-rs/py-alpha-lib on toolchain 31a9463c6e2794a59ce57a8f37abc6966afc2a58
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+31a9463c6e2794a59ce57a8f37abc6966afc2a58" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/msd-rs/py-alpha-lib 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" "+31a9463c6e2794a59ce57a8f37abc6966afc2a58" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded pyo3-macros v0.28.2
[INFO] [stderr]   Downloaded pyo3-build-config v0.28.2
[INFO] [stderr]   Downloaded pyo3-log v0.13.3
[INFO] [stderr]   Downloaded pyo3-macros-backend v0.28.2
[INFO] [stderr]   Downloaded pyo3-ffi v0.28.2
[INFO] [stderr]   Downloaded numpy v0.28.0
[INFO] [stderr]   Downloaded arc-swap v1.8.0
[INFO] [stderr]   Downloaded pyo3 v0.28.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+31a9463c6e2794a59ce57a8f37abc6966afc2a58" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e0a281b52e342bd3e2869a7c06ece359d2ff98bf22f0f5a5c6fd04f7f40ed64d
[INFO] running `Command { std: "docker" "start" "-a" "e0a281b52e342bd3e2869a7c06ece359d2ff98bf22f0f5a5c6fd04f7f40ed64d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e0a281b52e342bd3e2869a7c06ece359d2ff98bf22f0f5a5c6fd04f7f40ed64d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0a281b52e342bd3e2869a7c06ece359d2ff98bf22f0f5a5c6fd04f7f40ed64d", kill_on_drop: false }`
[INFO] [stdout] e0a281b52e342bd3e2869a7c06ece359d2ff98bf22f0f5a5c6fd04f7f40ed64d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+31a9463c6e2794a59ce57a8f37abc6966afc2a58" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 65eabbf623ea5dc7a7ad82daab9d90a2b70bef90e00e7513556ba53e9f07cabe
[INFO] running `Command { std: "docker" "start" "-a" "65eabbf623ea5dc7a7ad82daab9d90a2b70bef90e00e7513556ba53e9f07cabe", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.13.4
[INFO] [stderr]    Compiling libc v0.2.180
[INFO] [stderr]     Checking rustc-hash v2.1.1
[INFO] [stderr]    Compiling anyhow v1.0.100
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]     Checking arc-swap v1.8.0
[INFO] [stderr]     Checking ndarray v0.17.2
[INFO] [stderr]    Compiling alpha v0.2.5 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling quote v1.0.44
[INFO] [stderr]    Compiling syn v2.0.114
[INFO] [stderr]    Compiling pyo3-build-config v0.28.2
[INFO] [stderr] error: failed to run custom build command for `alpha v0.2.5 (/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/alpha-e78421a6e37005cc/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 as core::convert::From<std::io::error::Error>>::from
[INFO] [stderr]      1: <core::result::Result<(), anyhow::Error> as core::ops::try_trait::FromResidual<core::result::Result<core::convert::Infallible, std::io::error::Error>>>::from_residual
[INFO] [stderr]      2: build_script_build::build_algo_md
[INFO] [stderr]      3: build_script_build::main
[INFO] [stderr]      4: <fn() -> core::result::Result<(), anyhow::Error> as core::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]      5: std::sys::backtrace::__rust_begin_short_backtrace::<fn() -> core::result::Result<(), anyhow::Error>, core::result::Result<(), anyhow::Error>>
[INFO] [stderr]      6: std::rt::lang_start::<core::result::Result<(), anyhow::Error>>::{closure#0}
[INFO] [stderr]      7: <&dyn core::ops::function::Fn<(), Output = i32> + core::panic::unwind_safe::RefUnwindSafe + core::marker::Sync as core::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                at /rustc/31a9463c6e2794a59ce57a8f37abc6966afc2a58/library/core/src/ops/function.rs:287:21
[INFO] [stderr]      8: std::panicking::catch_unwind::do_call::<&dyn core::ops::function::Fn<(), Output = i32> + core::panic::unwind_safe::RefUnwindSafe + core::marker::Sync, i32>
[INFO] [stderr]                at /rustc/31a9463c6e2794a59ce57a8f37abc6966afc2a58/library/std/src/panicking.rs:581:40
[INFO] [stderr]      9: std::panicking::catch_unwind::<i32, &dyn core::ops::function::Fn<(), Output = i32> + core::panic::unwind_safe::RefUnwindSafe + core::marker::Sync>
[INFO] [stderr]                at /rustc/31a9463c6e2794a59ce57a8f37abc6966afc2a58/library/std/src/panicking.rs:544:19
[INFO] [stderr]     10: std::panic::catch_unwind::<&dyn core::ops::function::Fn<(), Output = i32> + core::panic::unwind_safe::RefUnwindSafe + core::marker::Sync, i32>
[INFO] [stderr]                at /rustc/31a9463c6e2794a59ce57a8f37abc6966afc2a58/library/std/src/panic.rs:359:14
[INFO] [stderr]     11: std::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                at /rustc/31a9463c6e2794a59ce57a8f37abc6966afc2a58/library/std/src/rt.rs:175:24
[INFO] [stderr]     12: std::panicking::catch_unwind::do_call::<std::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                at /rustc/31a9463c6e2794a59ce57a8f37abc6966afc2a58/library/std/src/panicking.rs:581:40
[INFO] [stderr]     13: std::panicking::catch_unwind::<isize, std::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                at /rustc/31a9463c6e2794a59ce57a8f37abc6966afc2a58/library/std/src/panicking.rs:544:19
[INFO] [stderr]     14: std::panic::catch_unwind::<std::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                at /rustc/31a9463c6e2794a59ce57a8f37abc6966afc2a58/library/std/src/panic.rs:359:14
[INFO] [stderr]     15: std::rt::lang_start_internal
[INFO] [stderr]                at /rustc/31a9463c6e2794a59ce57a8f37abc6966afc2a58/library/std/src/rt.rs:171:5
[INFO] [stderr]     16: std::rt::lang_start::<core::result::Result<(), anyhow::Error>>
[INFO] [stderr]     17: main
[INFO] [stderr]     18: <unknown>
[INFO] [stderr]     19: __libc_start_main
[INFO] [stderr]     20: _start
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "65eabbf623ea5dc7a7ad82daab9d90a2b70bef90e00e7513556ba53e9f07cabe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65eabbf623ea5dc7a7ad82daab9d90a2b70bef90e00e7513556ba53e9f07cabe", kill_on_drop: false }`
[INFO] [stdout] 65eabbf623ea5dc7a7ad82daab9d90a2b70bef90e00e7513556ba53e9f07cabe