[INFO] cloning repository https://github.com/Szune/localhost-build
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Szune/localhost-build" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSzune%2Flocalhost-build", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSzune%2Flocalhost-build'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 44115ba7ae906c3412c0e54dd039886362d4d17e
[INFO] checking Szune/localhost-build against master#0a8629bff642c3c3b84bb644c0099194f063b627 for pr-86231
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSzune%2Flocalhost-build" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Szune/localhost-build on toolchain 0a8629bff642c3c3b84bb644c0099194f063b627
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Szune/localhost-build
[INFO] finished tweaking git repo https://github.com/Szune/localhost-build
[INFO] tweaked toml for git repo https://github.com/Szune/localhost-build written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/Szune/localhost-build already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d947d92a8a409c0475ed07f363ab7d191fcf723cda76cef3b0f825b14fc3941d
[INFO] running `Command { std: "docker" "start" "-a" "d947d92a8a409c0475ed07f363ab7d191fcf723cda76cef3b0f825b14fc3941d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d947d92a8a409c0475ed07f363ab7d191fcf723cda76cef3b0f825b14fc3941d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d947d92a8a409c0475ed07f363ab7d191fcf723cda76cef3b0f825b14fc3941d", kill_on_drop: false }`
[INFO] [stdout] d947d92a8a409c0475ed07f363ab7d191fcf723cda76cef3b0f825b14fc3941d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+0a8629bff642c3c3b84bb644c0099194f063b627" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c6f4d1ef28c74bddd1757928e337584105722859df41067c724e080ac0b28dc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0c6f4d1ef28c74bddd1757928e337584105722859df41067c724e080ac0b28dc", kill_on_drop: false }`
[INFO] [stderr]    Compiling lb v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `lb v0.7.1 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/lb-3bfcbf31e157be28/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-changed=Cargo.toml
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'Failed to open README.md for writing: Os { code: 30, kind: Other, message: "Read-only file system" }', build.rs:33:10
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55a508921470 - std::backtrace_rs::backtrace::libunwind::trace::hfa838fc631229987
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x55a508921470 - std::backtrace_rs::backtrace::trace_unsynchronized::h93a23e36ec026219
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55a508921470 - std::sys_common::backtrace::_print_fmt::hba56c7f796a4152f
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x55a508921470 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h214637f1e26310e1
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x55a50893ae2c - core::fmt::write::h7aa6cd0067dca82a
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/core/src/fmt/mod.rs:1110:17
[INFO] [stderr]      5:     0x55a50891fcf5 - std::io::Write::write_fmt::heb07fc0616bbd06d
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/io/mod.rs:1588:15
[INFO] [stderr]      6:     0x55a50892309b - std::sys_common::backtrace::_print::h2c2441c37e894fb5
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x55a50892309b - std::sys_common::backtrace::print::h4fb679ac439362ea
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x55a50892309b - std::panicking::default_hook::{{closure}}::h56bbadec2356e5d2
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x55a508922b71 - std::panicking::default_hook::hb25822b45f6fdc4e
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x55a508923764 - std::panicking::rust_panic_with_hook::h4da5578e7277d2d4
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/panicking.rs:622:17
[INFO] [stderr]     11:     0x55a508923247 - std::panicking::begin_panic_handler::{{closure}}::h003783ddb3cba4e8
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/panicking.rs:519:13
[INFO] [stderr]     12:     0x55a50892194c - std::sys_common::backtrace::__rust_end_short_backtrace::hd138d2032731ed21
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x55a5089231a9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/panicking.rs:515:5
[INFO] [stderr]     14:     0x55a5088feff1 - core::panicking::panic_fmt::hbe99dddd3092ba3c
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x55a5088ff083 - core::result::unwrap_failed::hf79563fef9d11ab8
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/core/src/result.rs:1355:5
[INFO] [stderr]     16:     0x55a508904e60 - core::result::Result<T,E>::expect::h77e7c49d57e89386
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/core/src/result.rs:997:23
[INFO] [stderr]     17:     0x55a50890ce33 - build_script_build::update_readme::he84de1bacbdcb4bb
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:30:18
[INFO] [stderr]     18:     0x55a50890cb36 - build_script_build::main::hed562903833fa110
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:5:5
[INFO] [stderr]     19:     0x55a50890fdbb - core::ops::function::FnOnce::call_once::h83aa98b2495d0804
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     20:     0x55a50890f98e - std::sys_common::backtrace::__rust_begin_short_backtrace::h4f8095745b58f4a3
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     21:     0x55a50890bed1 - std::rt::lang_start::{{closure}}::h1d4404c9fbe45180
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/rt.rs:49:18
[INFO] [stderr]     22:     0x55a508923c69 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hd933294140eb11aa
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     23:     0x55a508923c69 - std::panicking::try::do_call::h8342fe3d9218b807
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/panicking.rs:401:40
[INFO] [stderr]     24:     0x55a508923c69 - std::panicking::try::hcbd73d6d0d58a8f0
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/panicking.rs:365:19
[INFO] [stderr]     25:     0x55a508923c69 - std::panic::catch_unwind::hde9cf73f810acfcc
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/panic.rs:434:14
[INFO] [stderr]     26:     0x55a508923c69 - std::rt::lang_start_internal::heb39e7ea6e5d6f6f
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/rt.rs:34:21
[INFO] [stderr]     27:     0x55a50890beb0 - std::rt::lang_start::h75de090612bc1fb6
[INFO] [stderr]                                  at /rustc/0a8629bff642c3c3b84bb644c0099194f063b627/library/std/src/rt.rs:48:5
[INFO] [stderr]     28:     0x55a50890d10c - main
[INFO] [stderr]     29:     0x7f156a0d60b3 - __libc_start_main
[INFO] [stderr]     30:     0x55a5088ff76e - _start
[INFO] [stderr]     31:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "0c6f4d1ef28c74bddd1757928e337584105722859df41067c724e080ac0b28dc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c6f4d1ef28c74bddd1757928e337584105722859df41067c724e080ac0b28dc", kill_on_drop: false }`
[INFO] [stdout] 0c6f4d1ef28c74bddd1757928e337584105722859df41067c724e080ac0b28dc