[INFO] cloning repository https://github.com/freemountain/jason
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/freemountain/jason" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffreemountain%2Fjason", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffreemountain%2Fjason'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 569aec730180c2cc62959baec36f2b24c249ef0a
[INFO] checking freemountain/jason against master#f5f33ec0e0455eefa72fc5567eb1280a4d5ee206 for pr-83312
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffreemountain%2Fjason" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/freemountain/jason on toolchain f5f33ec0e0455eefa72fc5567eb1280a4d5ee206
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/freemountain/jason
[INFO] finished tweaking git repo https://github.com/freemountain/jason
[INFO] tweaked toml for git repo https://github.com/freemountain/jason written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/freemountain/jason already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "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] d97c3e10003bab5cbbd6f783f5f76e6f7e0afcf4b6a003e0fe240f52afb3a0fb
[INFO] running `Command { std: "docker" "start" "-a" "d97c3e10003bab5cbbd6f783f5f76e6f7e0afcf4b6a003e0fe240f52afb3a0fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d97c3e10003bab5cbbd6f783f5f76e6f7e0afcf4b6a003e0fe240f52afb3a0fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d97c3e10003bab5cbbd6f783f5f76e6f7e0afcf4b6a003e0fe240f52afb3a0fb", kill_on_drop: false }`
[INFO] [stdout] d97c3e10003bab5cbbd6f783f5f76e6f7e0afcf4b6a003e0fe240f52afb3a0fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+f5f33ec0e0455eefa72fc5567eb1280a4d5ee206" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50bf63b95dc962a5ab0b01083464ac685797d4e07f0d88c4719794f572229f47
[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" "50bf63b95dc962a5ab0b01083464ac685797d4e07f0d88c4719794f572229f47", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]     Checking dtoa v0.4.3
[INFO] [stderr]     Checking array-macro v1.0.2
[INFO] [stderr]     Checking reexport-proc-macro v1.0.5
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]    Compiling proc-macro2 v0.4.8
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]     Checking serde_json v1.0.24
[INFO] [stderr]     Checking serde_yaml v0.7.5
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]    Compiling syn v0.14.4
[INFO] [stderr]     Checking memchr v2.0.1
[INFO] [stderr]     Checking atty v0.2.10
[INFO] [stderr]     Checking csv-core v0.1.4
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling jsonnet-sys v0.6.0
[INFO] [stderr]     Checking csv v1.0.0
[INFO] [stderr] error: failed to run custom build command for `jsonnet-sys v0.6.0`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/jsonnet-sys-205bae6caf3a9487/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   embedding: "jsonnet/stdlib/std.jsonnet" -> "jsonnet/core/std.jsonnet.h"
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   fatal: not a git repository (or any parent up to mount point /opt/rustwide)
[INFO] [stderr]   Stopping at filesystem boundary (GIT_DISCOVERY_ACROSS_FILESYSTEM not set).
[INFO] [stderr]   thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/jsonnet-sys-0.6.0/build.rs:28:47
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5642281b49e0 - std::backtrace_rs::backtrace::libunwind::trace::h4dee703919bfd40a
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x5642281b49e0 - std::backtrace_rs::backtrace::trace_unsynchronized::h457e839f1a563e20
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5642281b49e0 - std::sys_common::backtrace::_print_fmt::h86a55fb30f8393c8
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x5642281b49e0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h7b3d6cac46d277e1
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x5642281d06ff - core::fmt::write::h127419eb46f2ecc9
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/core/src/fmt/mod.rs:1092:17
[INFO] [stderr]      5:     0x5642281b12e2 - std::io::Write::write_fmt::h6010cfbb4726588b
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/io/mod.rs:1572:15
[INFO] [stderr]      6:     0x5642281b6925 - std::sys_common::backtrace::_print::h79b4f9652330cc9d
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x5642281b6925 - std::sys_common::backtrace::print::h330bb326a76af8cf
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x5642281b6925 - std::panicking::default_hook::{{closure}}::heb6a42a7d50a472e
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x5642281b63d3 - std::panicking::default_hook::h17e521ba6d68d6e1
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x5642281b6f2d - std::panicking::rust_panic_with_hook::h70db735e3a6e70cb
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panicking.rs:591:17
[INFO] [stderr]     11:     0x5642281b6ac7 - std::panicking::begin_panic_handler::{{closure}}::h777c71c8e5a7e25c
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panicking.rs:497:13
[INFO] [stderr]     12:     0x5642281b4e9c - std::sys_common::backtrace::__rust_end_short_backtrace::h3e9bf30168899554
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x5642281b6a29 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panicking.rs:493:5
[INFO] [stderr]     14:     0x56422815d3f1 - core::panicking::panic_fmt::h5322a082d19786c3
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x56422815d2e3 - core::option::expect_none_failed::h354eaa93a51d71b8
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/core/src/option.rs:1329:5
[INFO] [stderr]     16:     0x56422815f45a - core::result::Result<T,E>::unwrap::h20dbc4834cc5b4f8
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/core/src/result.rs:1037:23
[INFO] [stderr]     17:     0x56422815e33c - build_script_build::main::hd2c782f6af7c7701
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/jsonnet-sys-0.6.0/build.rs:28:25
[INFO] [stderr]     18:     0x56422815ef7b - core::ops::function::FnOnce::call_once::h2dab3fe8d0f8825d
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     19:     0x56422815eebe - std::sys_common::backtrace::__rust_begin_short_backtrace::h98690043c422409e
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     20:     0x56422815f701 - std::rt::lang_start::{{closure}}::hdd96d278d18af0e1
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/rt.rs:66:18
[INFO] [stderr]     21:     0x5642281b732a - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hbcc915e668c7ca11
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     22:     0x5642281b732a - std::panicking::try::do_call::h6b0f430d48122ddf
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panicking.rs:379:40
[INFO] [stderr]     23:     0x5642281b732a - std::panicking::try::h6ba420e2e21b5afa
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panicking.rs:343:19
[INFO] [stderr]     24:     0x5642281b732a - std::panic::catch_unwind::h8366719d1f615eee
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/panic.rs:431:14
[INFO] [stderr]     25:     0x5642281b732a - std::rt::lang_start_internal::h965c28c9ce06ee73
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/rt.rs:51:25
[INFO] [stderr]     26:     0x56422815f6e0 - std::rt::lang_start::h50856c9913437d99
[INFO] [stderr]                                  at /rustc/f5f33ec0e0455eefa72fc5567eb1280a4d5ee206/library/std/src/rt.rs:65:5
[INFO] [stderr]     27:     0x56422815eb2c - main
[INFO] [stderr]     28:     0x7f79d645b0b3 - __libc_start_main
[INFO] [stderr]     29:     0x56422815da7e - _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" "50bf63b95dc962a5ab0b01083464ac685797d4e07f0d88c4719794f572229f47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50bf63b95dc962a5ab0b01083464ac685797d4e07f0d88c4719794f572229f47", kill_on_drop: false }`
[INFO] [stdout] 50bf63b95dc962a5ab0b01083464ac685797d4e07f0d88c4719794f572229f47