[INFO] cloning repository https://github.com/dskkato/myrlib
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dskkato/myrlib" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdskkato%2Fmyrlib", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdskkato%2Fmyrlib'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d6a6a0cd9350cc23f6e346e4c16bc7e0f5f158db
[INFO] checking dskkato/myrlib against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdskkato%2Fmyrlib" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dskkato/myrlib on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dskkato/myrlib
[INFO] finished tweaking git repo https://github.com/dskkato/myrlib
[INFO] tweaked toml for git repo https://github.com/dskkato/myrlib written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/dskkato/myrlib already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded getrandom v0.1.12
[INFO] [stderr]   Downloaded toml v0.5.3
[INFO] [stderr]   Downloaded ppv-lite86 v0.2.5
[INFO] [stderr]   Downloaded c2-chacha v0.2.2
[INFO] [stderr]   Downloaded serde_json v1.0.41
[INFO] [stderr]   Downloaded unicode-width v0.1.6
[INFO] [stderr]   Downloaded libc v0.2.65
[INFO] [stderr]   Downloaded proc-macro2 v1.0.5
[INFO] [stderr]   Downloaded syn v1.0.5
[INFO] [stderr]   Downloaded cbindgen v0.9.1
[INFO] [stderr]   Downloaded serde_derive v1.0.101
[INFO] [stderr]   Downloaded serde v1.0.101
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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] 04c8e700d164ba1f0d8a8b74658631b0bcef19b37658e4fb0664cdf88e5db6ba
[INFO] running `Command { std: "docker" "start" "-a" "04c8e700d164ba1f0d8a8b74658631b0bcef19b37658e4fb0664cdf88e5db6ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "04c8e700d164ba1f0d8a8b74658631b0bcef19b37658e4fb0664cdf88e5db6ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04c8e700d164ba1f0d8a8b74658631b0bcef19b37658e4fb0664cdf88e5db6ba", kill_on_drop: false }`
[INFO] [stdout] 04c8e700d164ba1f0d8a8b74658631b0bcef19b37658e4fb0664cdf88e5db6ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ee8a0661703d6687e8b031125bb93d3d8fbf3eac869ef4f07a58aa47436a986c
[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" "ee8a0661703d6687e8b031125bb93d3d8fbf3eac869ef4f07a58aa47436a986c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling remove_dir_all v0.5.2
[INFO] [stderr]    Compiling itoa v0.4.4
[INFO] [stderr]    Compiling cbindgen v0.9.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling getrandom v0.1.12
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.101
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling serde_json v1.0.41
[INFO] [stderr]    Compiling toml v0.5.3
[INFO] [stderr]    Compiling myrlib v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `myrlib v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/myrlib-e20a46c6649e16f9/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" }', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cbindgen-0.9.1/src/bindgen/bindings.rs:66:43
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x561bdbc6f2d0 - std::backtrace_rs::backtrace::libunwind::trace::h706b838f5bbd876b
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x561bdbc6f2d0 - std::backtrace_rs::backtrace::trace_unsynchronized::hc15f29ae7822b7b8
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x561bdbc6f2d0 - std::sys_common::backtrace::_print_fmt::h7c580c971f91926c
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x561bdbc6f2d0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h2a772198c4032452
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x561bdbc9444c - core::fmt::write::h9a6d9c74526a6c1b
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/core/src/fmt/mod.rs:1115:17
[INFO] [stderr]      5:     0x561bdbc6c785 - std::io::Write::write_fmt::h00f38d9eb2c32e02
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/std/src/io/mod.rs:1663:15
[INFO] [stderr]      6:     0x561bdbc717cb - std::sys_common::backtrace::_print::h5b3c171e6f864ae4
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x561bdbc717cb - std::sys_common::backtrace::print::h93b9e9ed2a98e611
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x561bdbc717cb - std::panicking::default_hook::{{closure}}::hd8da92bb68d520c5
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x561bdbc712a1 - std::panicking::default_hook::hdbc8b2951c5afbab
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x561bdbc71eb9 - std::panicking::rust_panic_with_hook::h8a4c841655926f4e
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/std/src/panicking.rs:626:17
[INFO] [stderr]     11:     0x561bdbc71977 - std::panicking::begin_panic_handler::{{closure}}::h471b6bc74904b7b0
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/std/src/panicking.rs:519:13
[INFO] [stderr]     12:     0x561bdbc6f7cc - std::sys_common::backtrace::__rust_end_short_backtrace::h309f5c707f29932f
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x561bdbc718d9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/std/src/panicking.rs:515:5
[INFO] [stderr]     14:     0x561bdb762741 - core::panicking::panic_fmt::hcf5f6d96e1dd7099
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x561bdb762833 - core::result::unwrap_failed::he898b02f57993c42
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/core/src/result.rs:1355:5
[INFO] [stderr]     16:     0x561bdb802f2e - core::result::Result<T,E>::unwrap::h66bfcb42ea5e4758
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/core/src/result.rs:1037:23
[INFO] [stderr]     17:     0x561bdb7e1765 - cbindgen::bindgen::bindings::Bindings::write_to_file::he580646f3058aec2
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/cbindgen-0.9.1/src/bindgen/bindings.rs:66:24
[INFO] [stderr]     18:     0x561bdb81bd67 - build_script_build::main::h17472966e28a7669
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:4:5
[INFO] [stderr]     19:     0x561bdb7db38b - core::ops::function::FnOnce::call_once::hc8bc4632bde1d461
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     20:     0x561bdb80b33e - std::sys_common::backtrace::__rust_begin_short_backtrace::h4f263487752d22ad
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     21:     0x561bdb7dacf1 - std::rt::lang_start::{{closure}}::ha4a0d6512f40c4ec
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/std/src/rt.rs:63:18
[INFO] [stderr]     22:     0x561bdbc7249a - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hcbe5785d54a49ce2
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     23:     0x561bdbc7249a - std::panicking::try::do_call::h1c15e7ee8563c29d
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/std/src/panicking.rs:401:40
[INFO] [stderr]     24:     0x561bdbc7249a - std::panicking::try::hb8b07cef009cb4fc
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/std/src/panicking.rs:365:19
[INFO] [stderr]     25:     0x561bdbc7249a - std::panic::catch_unwind::h65a8efbe596bcbb1
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/std/src/panic.rs:434:14
[INFO] [stderr]     26:     0x561bdbc7249a - std::rt::lang_start_internal::{{closure}}::h66ded7ab0f18e9fb
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/std/src/rt.rs:45:48
[INFO] [stderr]     27:     0x561bdbc7249a - std::panicking::try::do_call::h29cafa65efb3f3f3
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/std/src/panicking.rs:401:40
[INFO] [stderr]     28:     0x561bdbc7249a - std::panicking::try::h412fc5378b4dbfc4
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/std/src/panicking.rs:365:19
[INFO] [stderr]     29:     0x561bdbc7249a - std::panic::catch_unwind::h555def6aac5bf192
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/std/src/panic.rs:434:14
[INFO] [stderr]     30:     0x561bdbc7249a - std::rt::lang_start_internal::hfff48202d7fee6e3
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/std/src/rt.rs:45:20
[INFO] [stderr]     31:     0x561bdb7dacc0 - std::rt::lang_start::h64753280e16cd253
[INFO] [stderr]                                  at /rustc/ddfd70ee3c3748e597b32f416b0d15a4f6e37685/library/std/src/rt.rs:62:5
[INFO] [stderr]     32:     0x561bdb81bdcc - main
[INFO] [stderr]     33:     0x7ff25115c0b3 - __libc_start_main
[INFO] [stderr]     34:     0x561bdb762f3e - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "ee8a0661703d6687e8b031125bb93d3d8fbf3eac869ef4f07a58aa47436a986c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee8a0661703d6687e8b031125bb93d3d8fbf3eac869ef4f07a58aa47436a986c", kill_on_drop: false }`
[INFO] [stdout] ee8a0661703d6687e8b031125bb93d3d8fbf3eac869ef4f07a58aa47436a986c