[INFO] cloning repository https://github.com/TisnKu/kos
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TisnKu/kos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTisnKu%2Fkos", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTisnKu%2Fkos'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 663620d8f5aef5e7303baf6619cbe57e6dceb83d
[INFO] checking TisnKu/kos against try#9961e55b3687a6d0b2bab4af0e5e81494b09be81 for pr-139087-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTisnKu%2Fkos" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/TisnKu/kos
[INFO] finished tweaking git repo https://github.com/TisnKu/kos
[INFO] tweaked toml for git repo https://github.com/TisnKu/kos written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/TisnKu/kos on toolchain 9961e55b3687a6d0b2bab4af0e5e81494b09be81
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/TisnKu/kos 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" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/rcore-os/riscv`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f272b27bf098a052c3c108c6fadfe48d3a672f8ada01f93c25659d63800c7c11
[INFO] running `Command { std: "docker" "start" "-a" "f272b27bf098a052c3c108c6fadfe48d3a672f8ada01f93c25659d63800c7c11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f272b27bf098a052c3c108c6fadfe48d3a672f8ada01f93c25659d63800c7c11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f272b27bf098a052c3c108c6fadfe48d3a672f8ada01f93c25659d63800c7c11", kill_on_drop: false }`
[INFO] [stdout] f272b27bf098a052c3c108c6fadfe48d3a672f8ada01f93c25659d63800c7c11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "+9961e55b3687a6d0b2bab4af0e5e81494b09be81" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5990ae872b60c5a8fb4d5514af6d5d33a452553fc014ef10192b38019c81d51b
[INFO] running `Command { std: "docker" "start" "-a" "5990ae872b60c5a8fb4d5514af6d5d33a452553fc014ef10192b38019c81d51b", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling kos v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking bit_field v0.10.1
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr] error: failed to run custom build command for `kos 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/kos-f482c088e5746157/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-changed=../user/src/
[INFO] [stderr]   cargo:rerun-if-changed=./user/target/riscv64gc-unknown-none-elf/release/
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (182) panicked at build.rs:15:48:
[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:     0x5e16b04cc79a - std[59b77d95d48df111]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stderr]                                  at /rustc/9961e55b3687a6d0b2bab4af0e5e81494b09be81/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5e16b04cc79a - std[59b77d95d48df111]::backtrace_rs::backtrace::trace_unsynchronized::<std[59b77d95d48df111]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stderr]                                  at /rustc/9961e55b3687a6d0b2bab4af0e5e81494b09be81/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5e16b04cc79a - std[59b77d95d48df111]::sys::backtrace::_print_fmt
[INFO] [stderr]                                  at /rustc/9961e55b3687a6d0b2bab4af0e5e81494b09be81/library/std/src/sys/backtrace.rs:74:9
[INFO] [stderr]      3:     0x5e16b04cc79a - <<std[59b77d95d48df111]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[9fb06fadd9ae6970]::fmt::Display>::fmt
[INFO] [stderr]                                  at /rustc/9961e55b3687a6d0b2bab4af0e5e81494b09be81/library/std/src/sys/backtrace.rs:44:26
[INFO] [stderr]      4:     0x5e16b04dd56a - <core[9fb06fadd9ae6970]::fmt::rt::Argument>::fmt
[INFO] [stderr]                                  at /rustc/9961e55b3687a6d0b2bab4af0e5e81494b09be81/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x5e16b04dd56a - core[9fb06fadd9ae6970]::fmt::write
[INFO] [stderr]      6:     0x5e16b04d0732 - std[59b77d95d48df111]::io::default_write_fmt::<std[59b77d95d48df111]::sys::stdio::unix::Stderr>
[INFO] [stderr]                                  at /rustc/9961e55b3687a6d0b2bab4af0e5e81494b09be81/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5e16b04d0732 - <std[59b77d95d48df111]::sys::stdio::unix::Stderr as std[59b77d95d48df111]::io::Write>::write_fmt
[INFO] [stderr]                                  at /rustc/9961e55b3687a6d0b2bab4af0e5e81494b09be81/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]      8:     0x5e16b04b801f - <std[59b77d95d48df111]::sys::backtrace::BacktraceLock>::print
[INFO] [stderr]                                  at /rustc/9961e55b3687a6d0b2bab4af0e5e81494b09be81/library/std/src/sys/backtrace.rs:47:9
[INFO] [stderr]      9:     0x5e16b04b801f - std[59b77d95d48df111]::panicking::default_hook::{closure#0}
[INFO] [stderr]                                  at /rustc/9961e55b3687a6d0b2bab4af0e5e81494b09be81/library/std/src/panicking.rs:292:27
[INFO] [stderr]     10:     0x5e16b04c8881 - std[59b77d95d48df111]::panicking::default_hook
[INFO] [stderr]                                  at /rustc/9961e55b3687a6d0b2bab4af0e5e81494b09be81/library/std/src/panicking.rs:319:9
[INFO] [stderr]     11:     0x5e16b04c8a3b - std[59b77d95d48df111]::panicking::panic_with_hook
[INFO] [stderr]                                  at /rustc/9961e55b3687a6d0b2bab4af0e5e81494b09be81/library/std/src/panicking.rs:825:13
[INFO] [stderr]     12:     0x5e16b04b80d8 - std[59b77d95d48df111]::panicking::panic_handler::{closure#0}
[INFO] [stderr]                                  at /rustc/9961e55b3687a6d0b2bab4af0e5e81494b09be81/library/std/src/panicking.rs:698:13
[INFO] [stderr]     13:     0x5e16b04ad5b9 - std[59b77d95d48df111]::sys::backtrace::__rust_end_short_backtrace::<std[59b77d95d48df111]::panicking::panic_handler::{closure#0}, !>
[INFO] [stderr]                                  at /rustc/9961e55b3687a6d0b2bab4af0e5e81494b09be81/library/std/src/sys/backtrace.rs:182:18
[INFO] [stderr]     14:     0x5e16b04b893d - __rustc[56ae3717827db8dc]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/9961e55b3687a6d0b2bab4af0e5e81494b09be81/library/std/src/panicking.rs:689:5
[INFO] [stderr]     15:     0x5e16b04ddd7c - core[9fb06fadd9ae6970]::panicking::panic_fmt
[INFO] [stderr]                                  at /rustc/9961e55b3687a6d0b2bab4af0e5e81494b09be81/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x5e16b04ddb52 - core[9fb06fadd9ae6970]::result::unwrap_failed
[INFO] [stderr]                                  at /rustc/9961e55b3687a6d0b2bab4af0e5e81494b09be81/library/core/src/result.rs:1867:5
[INFO] [stderr]     17:     0x5e16b049fd4a - build_script_build[fffe06de443378e3]::insert_app_data
[INFO] [stderr]     18:     0x5e16b04a0618 - build_script_build[fffe06de443378e3]::main
[INFO] [stderr]     19:     0x5e16b04a2403 - <fn() as core[9fb06fadd9ae6970]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     20:     0x5e16b049f316 - std[59b77d95d48df111]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     21:     0x5e16b049d129 - std[59b77d95d48df111]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     22:     0x5e16b04c8004 - <&dyn core[9fb06fadd9ae6970]::ops::function::Fn<(), Output = i32> + core[9fb06fadd9ae6970]::panic::unwind_safe::RefUnwindSafe + core[9fb06fadd9ae6970]::marker::Sync as core[9fb06fadd9ae6970]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]                                  at /rustc/9961e55b3687a6d0b2bab4af0e5e81494b09be81/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     23:     0x5e16b04c8004 - std[59b77d95d48df111]::panicking::catch_unwind::do_call::<&dyn core[9fb06fadd9ae6970]::ops::function::Fn<(), Output = i32> + core[9fb06fadd9ae6970]::panic::unwind_safe::RefUnwindSafe + core[9fb06fadd9ae6970]::marker::Sync, i32>
[INFO] [stderr]                                  at /rustc/9961e55b3687a6d0b2bab4af0e5e81494b09be81/library/std/src/panicking.rs:581:40
[INFO] [stderr]     24:     0x5e16b04c8004 - std[59b77d95d48df111]::panicking::catch_unwind::<i32, &dyn core[9fb06fadd9ae6970]::ops::function::Fn<(), Output = i32> + core[9fb06fadd9ae6970]::panic::unwind_safe::RefUnwindSafe + core[9fb06fadd9ae6970]::marker::Sync>
[INFO] [stderr]                                  at /rustc/9961e55b3687a6d0b2bab4af0e5e81494b09be81/library/std/src/panicking.rs:544:19
[INFO] [stderr]     25:     0x5e16b04c8004 - std[59b77d95d48df111]::panic::catch_unwind::<&dyn core[9fb06fadd9ae6970]::ops::function::Fn<(), Output = i32> + core[9fb06fadd9ae6970]::panic::unwind_safe::RefUnwindSafe + core[9fb06fadd9ae6970]::marker::Sync, i32>
[INFO] [stderr]                                  at /rustc/9961e55b3687a6d0b2bab4af0e5e81494b09be81/library/std/src/panic.rs:359:14
[INFO] [stderr]     26:     0x5e16b04c8004 - std[59b77d95d48df111]::rt::lang_start_internal::{closure#0}
[INFO] [stderr]                                  at /rustc/9961e55b3687a6d0b2bab4af0e5e81494b09be81/library/std/src/rt.rs:175:24
[INFO] [stderr]     27:     0x5e16b04c8004 - std[59b77d95d48df111]::panicking::catch_unwind::do_call::<std[59b77d95d48df111]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/9961e55b3687a6d0b2bab4af0e5e81494b09be81/library/std/src/panicking.rs:581:40
[INFO] [stderr]     28:     0x5e16b04c8004 - std[59b77d95d48df111]::panicking::catch_unwind::<isize, std[59b77d95d48df111]::rt::lang_start_internal::{closure#0}>
[INFO] [stderr]                                  at /rustc/9961e55b3687a6d0b2bab4af0e5e81494b09be81/library/std/src/panicking.rs:544:19
[INFO] [stderr]     29:     0x5e16b04c8004 - std[59b77d95d48df111]::panic::catch_unwind::<std[59b77d95d48df111]::rt::lang_start_internal::{closure#0}, isize>
[INFO] [stderr]                                  at /rustc/9961e55b3687a6d0b2bab4af0e5e81494b09be81/library/std/src/panic.rs:359:14
[INFO] [stderr]     30:     0x5e16b04c8004 - std[59b77d95d48df111]::rt::lang_start_internal
[INFO] [stderr]                                  at /rustc/9961e55b3687a6d0b2bab4af0e5e81494b09be81/library/std/src/rt.rs:171:5
[INFO] [stderr]     31:     0x5e16b049a2f1 - std[59b77d95d48df111]::rt::lang_start::<()>
[INFO] [stderr]     32:     0x5e16b04a27f5 - main
[INFO] [stderr]     33:     0x72827ecfe1ca - <unknown>
[INFO] [stderr]     34:     0x72827ecfe28b - __libc_start_main
[INFO] [stderr]     35:     0x5e16b0499cf5 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5990ae872b60c5a8fb4d5514af6d5d33a452553fc014ef10192b38019c81d51b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5990ae872b60c5a8fb4d5514af6d5d33a452553fc014ef10192b38019c81d51b", kill_on_drop: false }`
[INFO] [stdout] 5990ae872b60c5a8fb4d5514af6d5d33a452553fc014ef10192b38019c81d51b