[INFO] cloning repository https://github.com/ebroto/cargo-minver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ebroto/cargo-minver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Febroto%2Fcargo-minver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Febroto%2Fcargo-minver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7ecc4e60758d1e41d92ef7c2d22e49b5b4e18ae8
[INFO] documenting ebroto/cargo-minver against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Febroto%2Fcargo-minver" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ebroto/cargo-minver on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-5/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/ebroto/cargo-minver
[INFO] finished tweaking git repo https://github.com/ebroto/cargo-minver
[INFO] tweaked toml for git repo https://github.com/ebroto/cargo-minver written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/ebroto/cargo-minver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6739c87b2b41dd5e94cb393ae81950a41baedd6415d0e8c1447d52197ca25e17
[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" "6739c87b2b41dd5e94cb393ae81950a41baedd6415d0e8c1447d52197ca25e17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6739c87b2b41dd5e94cb393ae81950a41baedd6415d0e8c1447d52197ca25e17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6739c87b2b41dd5e94cb393ae81950a41baedd6415d0e8c1447d52197ca25e17", kill_on_drop: false }`
[INFO] [stdout] 6739c87b2b41dd5e94cb393ae81950a41baedd6415d0e8c1447d52197ca25e17
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] 2eb6f54872d5efcb7790bff03c030aac622d27615ba4dc1ec2b8b61d8a5ee3d8
[INFO] running `Command { std: "docker" "start" "-a" "2eb6f54872d5efcb7790bff03c030aac622d27615ba4dc1ec2b8b61d8a5ee3d8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling cargo-minver v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `cargo-minver v0.0.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/cargo-minver-312d8ad5591ba540/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   info: downloading component 'rustc-dev'
[INFO] [stderr]   thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: cleaning up cached downloads
[INFO] [stderr] 
[INFO] [stderr]   Caused by:
[INFO] [stderr]       Read-only file system (os error 30)', download/src/lib.rs:130:14
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55e0fb729650 - std::backtrace_rs::backtrace::libunwind::trace::h63b7a90188ab5fb3
[INFO] [stderr]                                  at /rustc/9bc8c42bb2f19e745a63f3445f1ac248fb015e53/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x55e0fb729650 - std::backtrace_rs::backtrace::trace_unsynchronized::h80aefbf9b851eca7
[INFO] [stderr]                                  at /rustc/9bc8c42bb2f19e745a63f3445f1ac248fb015e53/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55e0fb729650 - std::sys_common::backtrace::_print_fmt::hbef05ae4237a4d72
[INFO] [stderr]                                  at /rustc/9bc8c42bb2f19e745a63f3445f1ac248fb015e53/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x55e0fb729650 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h28abce2fdb9884c2
[INFO] [stderr]                                  at /rustc/9bc8c42bb2f19e745a63f3445f1ac248fb015e53/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x55e0fb385b4f - core::fmt::write::h3b84512577ca38a8
[INFO] [stderr]                                  at /rustc/9bc8c42bb2f19e745a63f3445f1ac248fb015e53/library/core/src/fmt/mod.rs:1092:17
[INFO] [stderr]      5:     0x55e0fb728f31 - std::io::Write::write_fmt::h465f8feea02e2aa1
[INFO] [stderr]                                  at /rustc/9bc8c42bb2f19e745a63f3445f1ac248fb015e53/library/std/src/io/mod.rs:1572:15
[INFO] [stderr]      6:     0x55e0fb728935 - std::sys_common::backtrace::_print::h525280ee0d29bdde
[INFO] [stderr]                                  at /rustc/9bc8c42bb2f19e745a63f3445f1ac248fb015e53/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x55e0fb728935 - std::sys_common::backtrace::print::h1f0f5b9f3ef8fb78
[INFO] [stderr]                                  at /rustc/9bc8c42bb2f19e745a63f3445f1ac248fb015e53/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x55e0fb728935 - std::panicking::default_hook::{{closure}}::ha5838f6faa4a5a8f
[INFO] [stderr]                                  at /rustc/9bc8c42bb2f19e745a63f3445f1ac248fb015e53/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x55e0fb727e37 - std::panicking::default_hook::hfb9fe98acb0dcb3b
[INFO] [stderr]                                  at /rustc/9bc8c42bb2f19e745a63f3445f1ac248fb015e53/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x55e0fb7279dc - std::panicking::rust_panic_with_hook::hb89f5f19036e6af8
[INFO] [stderr]                                  at /rustc/9bc8c42bb2f19e745a63f3445f1ac248fb015e53/library/std/src/panicking.rs:595:17
[INFO] [stderr]     11:     0x55e0fb744da8 - std::panicking::begin_panic_handler::{{closure}}::h119e7951427f41da
[INFO] [stderr]                                  at /rustc/9bc8c42bb2f19e745a63f3445f1ac248fb015e53/library/std/src/panicking.rs:497:13
[INFO] [stderr]     12:     0x55e0fb744d1c - std::sys_common::backtrace::__rust_end_short_backtrace::hce386c44bf47a128
[INFO] [stderr]                                  at /rustc/9bc8c42bb2f19e745a63f3445f1ac248fb015e53/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x55e0fb744ccd - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/9bc8c42bb2f19e745a63f3445f1ac248fb015e53/library/std/src/panicking.rs:493:5
[INFO] [stderr]     14:     0x55e0fb302d00 - core::panicking::panic_fmt::h2242888e8769cd33
[INFO] [stderr]                                  at /rustc/9bc8c42bb2f19e745a63f3445f1ac248fb015e53/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x55e0fb3033f2 - core::option::expect_none_failed::hb1edf11f73e63728
[INFO] [stderr]                                  at /rustc/9bc8c42bb2f19e745a63f3445f1ac248fb015e53/library/core/src/option.rs:1329:5
[INFO] [stderr]     16:     0x55e0fb6309cf - rustup::utils::utils::download_file_with_resume::h93a3c02897311476
[INFO] [stderr]     17:     0x55e0fb64622a - rustup::dist::manifestation::Manifestation::update::hea52b46f9b6744a0
[INFO] [stderr]     18:     0x55e0fb6efb5b - rustup::toolchain::DistributableToolchain::add_component::h1daaabb23dc33832
[INFO] [stderr]     19:     0x55e0fb6d1cc5 - rustup::cli::rustup_mode::main::h3d75d7ddeef88c66
[INFO] [stderr]     20:     0x55e0fb31874e - rustup_init::main::hcf1ce6ee9e71e489
[INFO] [stderr]     21:     0x55e0fb316803 - std::sys_common::backtrace::__rust_begin_short_backtrace::h18fd16721cd8cbad
[INFO] [stderr]     22:     0x55e0fb31d5e6 - main
[INFO] [stderr]     23:     0x7f9e1b8e50b3 - __libc_start_main
[INFO] [stderr]     24:     0x55e0fb3166e5 - <unknown>
[INFO] [stderr]   thread 'main' panicked at 'failed to read rust-toolchain file: Os { code: 2, kind: NotFound, message: "No such file or directory" }', build.rs:16:73
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55bbb3179a80 - std::backtrace_rs::backtrace::libunwind::trace::h34055254b57d8e79
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x55bbb3179a80 - std::backtrace_rs::backtrace::trace_unsynchronized::h8f1e3fbd9afff6ec
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55bbb3179a80 - std::sys_common::backtrace::_print_fmt::h3a99a796b770c360
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x55bbb3179a80 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h32d1f94a80615d18
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x55bbb31968ec - core::fmt::write::h306731c068f7162c
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/fmt/mod.rs:1110:17
[INFO] [stderr]      5:     0x55bbb3178215 - std::io::Write::write_fmt::hd2fa90334eee2a21
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/io/mod.rs:1588:15
[INFO] [stderr]      6:     0x55bbb317b6ab - std::sys_common::backtrace::_print::h5abaa2601a852287
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x55bbb317b6ab - std::sys_common::backtrace::print::h8d81445442bb638f
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x55bbb317b6ab - std::panicking::default_hook::{{closure}}::hcfe804496a9fa747
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x55bbb317b181 - std::panicking::default_hook::hbea8e3ccf2ba8901
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x55bbb317bd74 - std::panicking::rust_panic_with_hook::h7ee9e1a2d0f8975a
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:622:17
[INFO] [stderr]     11:     0x55bbb317b857 - std::panicking::begin_panic_handler::{{closure}}::h8ab3b4491718b2c7
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:519:13
[INFO] [stderr]     12:     0x55bbb3179f7c - std::sys_common::backtrace::__rust_end_short_backtrace::hd489062ffa586a9f
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x55bbb317b7b9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:515:5
[INFO] [stderr]     14:     0x55bbb3161201 - core::panicking::panic_fmt::hca6330e3e14086b4
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x55bbb3161293 - core::result::unwrap_failed::h6160d2b4bfbb0e87
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/result.rs:1355:5
[INFO] [stderr]     16:     0x55bbb3163af6 - core::result::Result<T,E>::expect::h0c3ca39c2555619f
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/result.rs:997:23
[INFO] [stderr]     17:     0x55bbb3163f67 - build_script_build::main::h7f9beeb0ff6c7cd8
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:16:36
[INFO] [stderr]     18:     0x55bbb3165ebb - core::ops::function::FnOnce::call_once::hc2f1aaeafe58281f
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     19:     0x55bbb3164cae - std::sys_common::backtrace::__rust_begin_short_backtrace::h06b0b0dae3c9256e
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     20:     0x55bbb3163de1 - std::rt::lang_start::{{closure}}::heddaf2c7152d1fce
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:49:18
[INFO] [stderr]     21:     0x55bbb317c279 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h2aabc384aab89b7b
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     22:     0x55bbb317c279 - std::panicking::try::do_call::hc5fcacb7a85fc7b1
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stderr]     23:     0x55bbb317c279 - std::panicking::try::hb5d9603af3abbe3a
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stderr]     24:     0x55bbb317c279 - std::panic::catch_unwind::h98fe6ac3925e64b4
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stderr]     25:     0x55bbb317c279 - std::rt::lang_start_internal::h22ac7383c516f93e
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:34:21
[INFO] [stderr]     26:     0x55bbb3163dc0 - std::rt::lang_start::hf5dba1ec29074d6e
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:48:5
[INFO] [stderr]     27:     0x55bbb31641ac - main
[INFO] [stderr]     28:     0x7f56209390b3 - __libc_start_main
[INFO] [stderr]     29:     0x55bbb316195e - _start
[INFO] [stderr]     30:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2eb6f54872d5efcb7790bff03c030aac622d27615ba4dc1ec2b8b61d8a5ee3d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2eb6f54872d5efcb7790bff03c030aac622d27615ba4dc1ec2b8b61d8a5ee3d8", kill_on_drop: false }`
[INFO] [stdout] 2eb6f54872d5efcb7790bff03c030aac622d27615ba4dc1ec2b8b61d8a5ee3d8
