[INFO] updating cached repository https://github.com/augustuswm/derivative
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d711026c578f6856b77d283338a202c55420696d
[INFO] checking augustuswm/derivative against try#22dd2dd1dc07f63ae9394352d412f020d2985684 for pr-74627
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faugustuswm%2Fderivative" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/augustuswm/derivative on toolchain 22dd2dd1dc07f63ae9394352d412f020d2985684
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+22dd2dd1dc07f63ae9394352d412f020d2985684" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/augustuswm/derivative
[INFO] finished tweaking git repo https://github.com/augustuswm/derivative
[INFO] tweaked toml for git repo https://github.com/augustuswm/derivative written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/augustuswm/derivative already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+22dd2dd1dc07f63ae9394352d412f020d2985684" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+22dd2dd1dc07f63ae9394352d412f020d2985684" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9556b4ea2fe70fa7c3f1ddd5ebd59cc0409969a22099fe1af1396cbadc919b49
[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" "9556b4ea2fe70fa7c3f1ddd5ebd59cc0409969a22099fe1af1396cbadc919b49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9556b4ea2fe70fa7c3f1ddd5ebd59cc0409969a22099fe1af1396cbadc919b49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9556b4ea2fe70fa7c3f1ddd5ebd59cc0409969a22099fe1af1396cbadc919b49", kill_on_drop: false }`
[INFO] [stdout] 9556b4ea2fe70fa7c3f1ddd5ebd59cc0409969a22099fe1af1396cbadc919b49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+22dd2dd1dc07f63ae9394352d412f020d2985684" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a989e50156492b738f86725d63267b29fec4bf0372b3144f049d9211c2a88e78
[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" "a989e50156492b738f86725d63267b29fec4bf0372b3144f049d9211c2a88e78", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.18
[INFO] [stderr]    Compiling serde v1.0.71
[INFO] [stderr]    Compiling num-traits v0.2.5
[INFO] [stderr]     Checking byteorder v1.2.4
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]    Compiling pkg-config v0.3.13
[INFO] [stderr]     Checking approx v0.1.1
[INFO] [stderr]     Checking mint v0.5.1
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]     Checking atom v0.3.5
[INFO] [stderr]     Checking mopa v0.2.2
[INFO] [stderr]     Checking tuple_utils v0.2.0
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking crossbeam v0.3.2
[INFO] [stderr]    Compiling libc v0.2.43
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking hetseq v0.1.5
[INFO] [stderr]     Checking wavefront_obj v5.1.0
[INFO] [stderr]    Compiling num-rational v0.2.1
[INFO] [stderr]     Checking claxon v0.3.1
[INFO] [stderr]     Checking hound v3.4.0
[INFO] [stderr]     Checking xi-unicode v0.1.0
[INFO] [stderr]     Checking ansi_term v0.10.2
[INFO] [stderr]     Checking fluent-locale v0.3.2
[INFO] [stderr]     Checking semver v0.1.20
[INFO] [stderr]     Checking unicode-normalization v0.1.7
[INFO] [stderr]     Checking rand v0.4.2
[INFO] [stderr]     Checking log v0.4.3
[INFO] [stderr]     Checking unreachable v1.0.0
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling proc-macro2 v0.3.8
[INFO] [stderr]     Checking slice-deque v0.1.11
[INFO] [stderr]    Compiling syn v0.10.8
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking ogg v0.4.1
[INFO] [stderr]     Checking stb_truetype v0.2.2
[INFO] [stderr]     Checking rustc-hash v1.0.1
[INFO] [stderr]     Checking getopts v0.2.18
[INFO] [stderr]    Compiling proc-macro2 v0.4.12
[INFO] [stderr]    Compiling wayland-scanner v0.20.11
[INFO] [stderr]     Checking twox-hash v1.1.1
[INFO] [stderr]     Checking nix v0.11.0
[INFO] [stderr]    Compiling rustc_version_runtime v0.1.3
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling xcb v0.8.2
[INFO] [stderr]    Compiling rayon v1.0.2
[INFO] [stderr]     Checking rustc_version v0.1.7
[INFO] [stderr]    Compiling shred-derive v0.5.0
[INFO] [stderr]    Compiling gfx_macros v0.2.1
[INFO] [stderr]     Checking lewton v0.5.2
[INFO] [stderr]    Compiling gl_generator v0.9.0
[INFO] [stderr]     Checking fluent v0.2.0
[INFO] [stderr]    Compiling x11-dl v2.18.3
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking colored v1.6.1
[INFO] [stderr]    Compiling quote v0.5.2
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]    Compiling quote v0.6.6
[INFO] [stderr] error: failed to run custom build command for `rustc_version_runtime v0.1.3`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/rustc_version_runtime-4c6fec63710bc6f5/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stderr
[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/rustc_version_runtime-0.1.3/build.rs:27:48
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55e38c77f4cf - std::backtrace_rs::backtrace::libunwind::trace::h8864605b5c3dbe2c
[INFO] [stderr]                                  at /rustc/22dd2dd1dc07f63ae9394352d412f020d2985684/src/libstd/../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]      1:     0x55e38c77f4cf - std::backtrace_rs::backtrace::trace_unsynchronized::h1f622efed412f077
[INFO] [stderr]                                  at /rustc/22dd2dd1dc07f63ae9394352d412f020d2985684/src/libstd/../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x55e38c77f4cf - std::sys_common::backtrace::_print_fmt::h8e17da323f21cc2b
[INFO] [stderr]                                  at /rustc/22dd2dd1dc07f63ae9394352d412f020d2985684/src/libstd/sys_common/backtrace.rs:77
[INFO] [stderr]      3:     0x55e38c77f4cf - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hd4a7293426badf40
[INFO] [stderr]                                  at /rustc/22dd2dd1dc07f63ae9394352d412f020d2985684/src/libstd/sys_common/backtrace.rs:58
[INFO] [stderr]      4:     0x55e38c79d8bc - core::fmt::write::hfbd2baad61ed21a8
[INFO] [stderr]                                  at /rustc/22dd2dd1dc07f63ae9394352d412f020d2985684/src/libcore/fmt/mod.rs:1117
[INFO] [stderr]      5:     0x55e38c77cfa2 - std::io::Write::write_fmt::h54828fb1bd41a052
[INFO] [stderr]                                  at /rustc/22dd2dd1dc07f63ae9394352d412f020d2985684/src/libstd/io/mod.rs:1508
[INFO] [stderr]      6:     0x55e38c7819d0 - std::sys_common::backtrace::_print::h6ba0300926b9fb58
[INFO] [stderr]                                  at /rustc/22dd2dd1dc07f63ae9394352d412f020d2985684/src/libstd/sys_common/backtrace.rs:61
[INFO] [stderr]      7:     0x55e38c7819d0 - std::sys_common::backtrace::print::hd11f0188385cb859
[INFO] [stderr]                                  at /rustc/22dd2dd1dc07f63ae9394352d412f020d2985684/src/libstd/sys_common/backtrace.rs:48
[INFO] [stderr]      8:     0x55e38c7819d0 - std::panicking::default_hook::{{closure}}::h57b45fcdc30fe8e4
[INFO] [stderr]                                  at /rustc/22dd2dd1dc07f63ae9394352d412f020d2985684/src/libstd/panicking.rs:198
[INFO] [stderr]      9:     0x55e38c78171c - std::panicking::default_hook::h067cd795bad37ff3
[INFO] [stderr]                                  at /rustc/22dd2dd1dc07f63ae9394352d412f020d2985684/src/libstd/panicking.rs:217
[INFO] [stderr]     10:     0x55e38c782013 - std::panicking::rust_panic_with_hook::hd1b93581b69959be
[INFO] [stderr]                                  at /rustc/22dd2dd1dc07f63ae9394352d412f020d2985684/src/libstd/panicking.rs:526
[INFO] [stderr]     11:     0x55e38c781c0b - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/22dd2dd1dc07f63ae9394352d412f020d2985684/src/libstd/panicking.rs:437
[INFO] [stderr]     12:     0x55e38c79ccc1 - core::panicking::panic_fmt::h9cc57011b345cfad
[INFO] [stderr]                                  at /rustc/22dd2dd1dc07f63ae9394352d412f020d2985684/src/libcore/panicking.rs:85
[INFO] [stderr]     13:     0x55e38c79cae3 - core::option::expect_none_failed::h10abb5a6aef32df8
[INFO] [stderr]                                  at /rustc/22dd2dd1dc07f63ae9394352d412f020d2985684/src/libcore/option.rs:1273
[INFO] [stderr]     14:     0x55e38c750feb - core::result::Result<T,E>::unwrap::h1020a09fd4288d81
[INFO] [stderr]                                  at /rustc/22dd2dd1dc07f63ae9394352d412f020d2985684/src/libcore/result.rs:1005
[INFO] [stderr]     15:     0x55e38c74d735 - build_script_build::main::h187ce1042def62bc
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rustc_version_runtime-0.1.3/build.rs:27
[INFO] [stderr]     16:     0x55e38c74ed5b - std::rt::lang_start::{{closure}}::habe15df8fabb7807
[INFO] [stderr]                                  at /rustc/22dd2dd1dc07f63ae9394352d412f020d2985684/src/libstd/rt.rs:67
[INFO] [stderr]     17:     0x55e38c7823e3 - std::rt::lang_start_internal::{{closure}}::h9a7ec4d0a4846786
[INFO] [stderr]                                  at /rustc/22dd2dd1dc07f63ae9394352d412f020d2985684/src/libstd/rt.rs:52
[INFO] [stderr]     18:     0x55e38c7823e3 - std::panicking::try::do_call::h31d9073533c95062
[INFO] [stderr]                                  at /rustc/22dd2dd1dc07f63ae9394352d412f020d2985684/src/libstd/panicking.rs:348
[INFO] [stderr]     19:     0x55e38c7823e3 - std::panicking::try::h9be90170880ba1d0
[INFO] [stderr]                                  at /rustc/22dd2dd1dc07f63ae9394352d412f020d2985684/src/libstd/panicking.rs:325
[INFO] [stderr]     20:     0x55e38c7823e3 - std::panic::catch_unwind::hba3ee29aa4d47586
[INFO] [stderr]                                  at /rustc/22dd2dd1dc07f63ae9394352d412f020d2985684/src/libstd/panic.rs:394
[INFO] [stderr]     21:     0x55e38c7823e3 - std::rt::lang_start_internal::h90880417661a7eb6
[INFO] [stderr]                                  at /rustc/22dd2dd1dc07f63ae9394352d412f020d2985684/src/libstd/rt.rs:51
[INFO] [stderr]     22:     0x55e38c74ed37 - std::rt::lang_start::h70659bb5cceebeec
[INFO] [stderr]                                  at /rustc/22dd2dd1dc07f63ae9394352d412f020d2985684/src/libstd/rt.rs:67
[INFO] [stderr]     23:     0x55e38c74e78a - main
[INFO] [stderr]     24:     0x7efd3d3470b3 - __libc_start_main
[INFO] [stderr]     25:     0x55e38c74d0ae - _start
[INFO] [stderr]     26:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a989e50156492b738f86725d63267b29fec4bf0372b3144f049d9211c2a88e78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a989e50156492b738f86725d63267b29fec4bf0372b3144f049d9211c2a88e78", kill_on_drop: false }`
[INFO] [stdout] a989e50156492b738f86725d63267b29fec4bf0372b3144f049d9211c2a88e78