[INFO] cloning repository https://github.com/hfnan/lox-code
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/hfnan/lox-code" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhfnan%2Flox-code", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhfnan%2Flox-code'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d7b16b9f6b3ef5548ac09f3568fb7c3fc035f912
[INFO] testing hfnan/lox-code against master#414482f6a0d4e7290f614300581a0b55442552a3 for pr-140985
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhfnan%2Flox-code" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hfnan/lox-code on toolchain 414482f6a0d4e7290f614300581a0b55442552a3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/hfnan/lox-code
[INFO] finished tweaking git repo https://github.com/hfnan/lox-code
[INFO] tweaked toml for git repo https://github.com/hfnan/lox-code written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/hfnan/lox-code 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" "+414482f6a0d4e7290f614300581a0b55442552a3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 67352013b163bc72a854e5d5cc48f0efe6e9628136b6edc3b3c8144ddc110e76
[INFO] running `Command { std: "docker" "start" "-a" "67352013b163bc72a854e5d5cc48f0efe6e9628136b6edc3b3c8144ddc110e76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "67352013b163bc72a854e5d5cc48f0efe6e9628136b6edc3b3c8144ddc110e76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "67352013b163bc72a854e5d5cc48f0efe6e9628136b6edc3b3c8144ddc110e76", kill_on_drop: false }`
[INFO] [stdout] 67352013b163bc72a854e5d5cc48f0efe6e9628136b6edc3b3c8144ddc110e76
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+414482f6a0d4e7290f614300581a0b55442552a3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c978fdb7417217d2fcd660211b1a5c5d7bbbd2ab673d1acfcc0ef8e1cb8d4e02
[INFO] running `Command { std: "docker" "start" "-a" "c978fdb7417217d2fcd660211b1a5c5d7bbbd2ab673d1acfcc0ef8e1cb8d4e02", kill_on_drop: false }`
[INFO] [stderr]    Compiling rlox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `rlox v0.1.0 (/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/rlox-7b6e9eb08c679375/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' panicked at build.rs:5:26:
[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:     0x648d6d781052 - std::backtrace_rs::backtrace::libunwind::trace::h2a54ddf40adf8cf8
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x648d6d781052 - std::backtrace_rs::backtrace::trace_unsynchronized::h332dec2b3594a10b
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x648d6d781052 - std::sys::backtrace::_print_fmt::hcb3dee91dccac105
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x648d6d781052 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h2f02338d4ae6d8b0
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x648d6d79c553 - core::fmt::rt::Argument::fmt::h8705d664b1839d6c
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]      5:     0x648d6d79c553 - core::fmt::write::h5e77c22335cabc7f
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/core/src/fmt/mod.rs:1446:25
[INFO] [stderr]      6:     0x648d6d77ee23 - std::io::default_write_fmt::hee851e3914c1de78
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x648d6d77ee23 - std::io::Write::write_fmt::hccf7b69d0b3d44cc
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/io/mod.rs:1914:13
[INFO] [stderr]      8:     0x648d6d780ea2 - std::sys::backtrace::BacktraceLock::print::hb22254026b13323e
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x648d6d781f12 - std::panicking::default_hook::{{closure}}::h15ac4e3ee7801be5
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:300:22
[INFO] [stderr]     10:     0x648d6d781d15 - std::panicking::default_hook::h15db2a3343942a16
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:327:9
[INFO] [stderr]     11:     0x648d6d7827e2 - std::panicking::rust_panic_with_hook::h67f3fa85499b6cf9
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:833:13
[INFO] [stderr]     12:     0x648d6d78267a - std::panicking::begin_panic_handler::{{closure}}::h40a30e994b26720e
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:706:13
[INFO] [stderr]     13:     0x648d6d781549 - std::sys::backtrace::__rust_end_short_backtrace::hb5bcb2f6ea295c8b
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/sys/backtrace.rs:168:18
[INFO] [stderr]     14:     0x648d6d78230d - __rustc[bf3627c2b8b7eae9]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:697:5
[INFO] [stderr]     15:     0x648d6d79b800 - core::panicking::panic_fmt::h20722ae9d0312a90
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/core/src/panicking.rs:75:14
[INFO] [stderr]     16:     0x648d6d79bb96 - core::result::unwrap_failed::h3a549f59308089dd
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/core/src/result.rs:1732:5
[INFO] [stderr]     17:     0x648d6d75f898 - build_script_build::main::h7c171939eb279110
[INFO] [stderr]     18:     0x648d6d760413 - core::ops::function::FnOnce::call_once::h31663f32f15772d1
[INFO] [stderr]     19:     0x648d6d75a636 - std::sys::backtrace::__rust_begin_short_backtrace::h8779196ab4ad8b20
[INFO] [stderr]     20:     0x648d6d75ffd9 - std::rt::lang_start::{{closure}}::h31c14b73d45703a3
[INFO] [stderr]     21:     0x648d6d77c864 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::ha742528a4692a9bd
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     22:     0x648d6d77c864 - std::panicking::try::do_call::h75026aeceff684c1
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:589:40
[INFO] [stderr]     23:     0x648d6d77c864 - std::panicking::try::hba5719997e534154
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:552:19
[INFO] [stderr]     24:     0x648d6d77c864 - std::panic::catch_unwind::h2ecb15b3f4c1949e
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panic.rs:359:14
[INFO] [stderr]     25:     0x648d6d77c864 - std::rt::lang_start_internal::{{closure}}::he3f7e6f824e92983
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/rt.rs:168:24
[INFO] [stderr]     26:     0x648d6d77c864 - std::panicking::try::do_call::h5bb380c51c0304a3
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:589:40
[INFO] [stderr]     27:     0x648d6d77c864 - std::panicking::try::hfa141bf2b068cbd8
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panicking.rs:552:19
[INFO] [stderr]     28:     0x648d6d77c864 - std::panic::catch_unwind::he2f0bd01c0972662
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/panic.rs:359:14
[INFO] [stderr]     29:     0x648d6d77c864 - std::rt::lang_start_internal::h6eef6ef33d841fb9
[INFO] [stderr]                                  at /rustc/414482f6a0d4e7290f614300581a0b55442552a3/library/std/src/rt.rs:164:5
[INFO] [stderr]     30:     0x648d6d75ffc1 - std::rt::lang_start::h71088160985fb6c4
[INFO] [stderr]     31:     0x648d6d75f8e5 - main
[INFO] [stderr]     32:     0x734a4e7a91ca - <unknown>
[INFO] [stderr]     33:     0x734a4e7a928b - __libc_start_main
[INFO] [stderr]     34:     0x648d6d7598a5 - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "c978fdb7417217d2fcd660211b1a5c5d7bbbd2ab673d1acfcc0ef8e1cb8d4e02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c978fdb7417217d2fcd660211b1a5c5d7bbbd2ab673d1acfcc0ef8e1cb8d4e02", kill_on_drop: false }`
[INFO] [stdout] c978fdb7417217d2fcd660211b1a5c5d7bbbd2ab673d1acfcc0ef8e1cb8d4e02