[INFO] fetching crate sit-core 0.4.1...
[INFO] checking sit-core-0.4.1 against master#a874956d940ecb3ed524b6176a171219ac4787ea for pr-76104
[INFO] extracting crate sit-core 0.4.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate sit-core 0.4.1 on toolchain a874956d940ecb3ed524b6176a171219ac4787ea
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sit-core 0.4.1
[INFO] finished tweaking crates.io crate sit-core 0.4.1
[INFO] tweaked toml for crates.io crate sit-core 0.4.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "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" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 128c96c69ef27391c8e7241e722ed0bb371d53baf3789ce91d5b6957da1ae452
[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" "128c96c69ef27391c8e7241e722ed0bb371d53baf3789ce91d5b6957da1ae452", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "128c96c69ef27391c8e7241e722ed0bb371d53baf3789ce91d5b6957da1ae452", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "128c96c69ef27391c8e7241e722ed0bb371d53baf3789ce91d5b6957da1ae452", kill_on_drop: false }`
[INFO] [stdout] 128c96c69ef27391c8e7241e722ed0bb371d53baf3789ce91d5b6957da1ae452
[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" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+a874956d940ecb3ed524b6176a171219ac4787ea" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d493ec3fa20dc4972b9e3a1bc7582294a03936e69c5342bdc5068a4bd8300bc
[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" "0d493ec3fa20dc4972b9e3a1bc7582294a03936e69c5342bdc5068a4bd8300bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]     Checking byte-tools v0.2.0
[INFO] [stderr]    Compiling syn v1.0.41
[INFO] [stderr]     Checking constant_time_eq v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking arrayref v0.3.6
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]    Compiling case v0.1.0
[INFO] [stderr]     Checking data-encoding v2.3.0
[INFO] [stderr]     Checking relative-path v0.3.7
[INFO] [stderr]     Checking cesu8 v1.1.0
[INFO] [stderr]     Checking dunce v0.1.1
[INFO] [stderr]     Checking assert_matches v1.3.0
[INFO] [stderr]    Compiling miniz_oxide v0.4.2
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]     Checking generic-array v0.9.0
[INFO] [stderr]    Compiling typed-builder v0.1.1
[INFO] [stderr]     Checking block-buffer v0.3.3
[INFO] [stderr]    Compiling derive-error v0.0.4
[INFO] [stderr]     Checking digest v0.7.6
[INFO] [stderr]     Checking crypto-mac v0.5.2
[INFO] [stderr]     Checking sha-1 v0.7.0
[INFO] [stderr]     Checking blake2 v0.7.1
[INFO] [stderr]    Compiling backtrace v0.3.50
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking uuid v0.5.1
[INFO] [stderr]    Compiling include_dir v0.1.5
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling sit-core v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking proptest v0.7.2
[INFO] [stderr] error: failed to run custom build command for `sit-core v0.4.1 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/sit-core-a70ce0f856391c59/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   TARGET = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr]   OPT_LEVEL = Some("0")
[INFO] [stderr]   HOST = Some("x86_64-unknown-linux-gnu")
[INFO] [stderr]   CC_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   CC_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   HOST_CC = None
[INFO] [stderr]   CC = None
[INFO] [stderr]   CFLAGS_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   CFLAGS_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   HOST_CFLAGS = None
[INFO] [stderr]   CFLAGS = None
[INFO] [stderr]   CRATE_CC_NO_DEFAULTS = None
[INFO] [stderr]   DEBUG = Some("true")
[INFO] [stderr]   CARGO_CFG_TARGET_FEATURE = Some("fxsr,mmx,sse,sse2")
[INFO] [stderr]   running: "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-fno-omit-frame-pointer" "-m64" "-Wall" "-Wextra" "-o" "/opt/rustwide/target/debug/build/sit-core-68228544bf89729c/out/src/duktape/duktape.o" "-c" "src/duktape/duktape.c"
[INFO] [stderr]   exit code: 0
[INFO] [stderr]   running: "cc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-g" "-fno-omit-frame-pointer" "-m64" "-Wall" "-Wextra" "-o" "/opt/rustwide/target/debug/build/sit-core-68228544bf89729c/out/src/duktape/duk_module_duktape.o" "-c" "src/duktape/duk_module_duktape.c"
[INFO] [stderr]   exit code: 0
[INFO] [stderr]   AR_x86_64-unknown-linux-gnu = None
[INFO] [stderr]   AR_x86_64_unknown_linux_gnu = None
[INFO] [stderr]   HOST_AR = None
[INFO] [stderr]   AR = None
[INFO] [stderr]   running: "ar" "crs" "/opt/rustwide/target/debug/build/sit-core-68228544bf89729c/out/libduktape.a" "/opt/rustwide/target/debug/build/sit-core-68228544bf89729c/out/src/duktape/duktape.o" "/opt/rustwide/target/debug/build/sit-core-68228544bf89729c/out/src/duktape/duk_module_duktape.o"
[INFO] [stderr]   exit code: 0
[INFO] [stderr]   cargo:rustc-link-lib=static=duktape
[INFO] [stderr]   cargo:rustc-link-search=native=/opt/rustwide/target/debug/build/sit-core-68228544bf89729c/out
[INFO] [stderr]   cargo:rustc-link-lib=static=duktape
[INFO] [stderr] 
[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" }', build.rs:44:40
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55e8281dbf80 - std::backtrace_rs::backtrace::libunwind::trace::h14e81b0c16b543a7
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]      1:     0x55e8281dbf80 - std::backtrace_rs::backtrace::trace_unsynchronized::hc9e39e172835ff32
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x55e8281dbf80 - std::sys_common::backtrace::_print_fmt::h31994df1c8c77b8f
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]      3:     0x55e8281dbf80 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::he74e98acff43ec99
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/std/src/sys_common/backtrace.rs:58
[INFO] [stderr]      4:     0x55e8281fbccc - core::fmt::write::h1857a60b204f1b6a
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/core/src/fmt/mod.rs:1080
[INFO] [stderr]      5:     0x55e8281d8137 - std::io::Write::write_fmt::hea6289e6649ff508
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/std/src/io/mod.rs:1517
[INFO] [stderr]      6:     0x55e8281de500 - std::sys_common::backtrace::_print::h8cc65937fea24014
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]      7:     0x55e8281de500 - std::sys_common::backtrace::print::hff6a0ebb96535e34
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]      8:     0x55e8281de500 - std::panicking::default_hook::{{closure}}::h71b9700c5dda1b1d
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/std/src/panicking.rs:208
[INFO] [stderr]      9:     0x55e8281de24c - std::panicking::default_hook::h0c46e634c06c69b6
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/std/src/panicking.rs:227
[INFO] [stderr]     10:     0x55e8281deb63 - std::panicking::rust_panic_with_hook::he52576a0c2093334
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/std/src/panicking.rs:577
[INFO] [stderr]     11:     0x55e8281de739 - std::panicking::begin_panic_handler::{{closure}}::h411c800b810762b2
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/std/src/panicking.rs:484
[INFO] [stderr]     12:     0x55e8281dc40c - std::sys_common::backtrace::__rust_end_short_backtrace::ha657a272019e6aad
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]     13:     0x55e8281de6f9 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/std/src/panicking.rs:483
[INFO] [stderr]     14:     0x55e8281faff1 - core::panicking::panic_fmt::hb15d6f55e8472f62
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/core/src/panicking.rs:85
[INFO] [stderr]     15:     0x55e8281fae13 - core::option::expect_none_failed::he492a18657d97593
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/core/src/option.rs:1221
[INFO] [stderr]     16:     0x55e82817e38d - core::result::Result<T,E>::unwrap::hc8d9a78082c8138f
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/core/src/result.rs:973
[INFO] [stderr]     17:     0x55e8280823af - build_script_build::main::ha116a12eb2dd42dc
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:44
[INFO] [stderr]     18:     0x55e82808019b - core::ops::function::FnOnce::call_once::h21a9fb69d6d50ab1
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/core/src/ops/function.rs:227
[INFO] [stderr]     19:     0x55e82808012e - std::sys_common::backtrace::__rust_begin_short_backtrace::h0f3c94a19c647743
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/std/src/sys_common/backtrace.rs:137
[INFO] [stderr]     20:     0x55e82807f401 - std::rt::lang_start::{{closure}}::h88f177f9a4bc5a13
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/std/src/rt.rs:66
[INFO] [stderr]     21:     0x55e8281def61 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h009d20b8a620bf60
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/core/src/ops/function.rs:259
[INFO] [stderr]     22:     0x55e8281def61 - std::panicking::try::do_call::h09431c39e2107c90
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/std/src/panicking.rs:381
[INFO] [stderr]     23:     0x55e8281def61 - std::panicking::try::he27cf60b958af343
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/std/src/panicking.rs:345
[INFO] [stderr]     24:     0x55e8281def61 - std::panic::catch_unwind::h7b646b0041dc5591
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/std/src/panic.rs:382
[INFO] [stderr]     25:     0x55e8281def61 - std::rt::lang_start_internal::hdad6c98af1e4747e
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/std/src/rt.rs:51
[INFO] [stderr]     26:     0x55e82807f3d7 - std::rt::lang_start::h0aa4ea0dfb4b3dcb
[INFO] [stderr]                                  at /rustc/a874956d940ecb3ed524b6176a171219ac4787ea/library/std/src/rt.rs:65
[INFO] [stderr]     27:     0x55e8280825da - main
[INFO] [stderr]     28:     0x7f301622f0b3 - __libc_start_main
[INFO] [stderr]     29:     0x55e82807d0be - _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" "0d493ec3fa20dc4972b9e3a1bc7582294a03936e69c5342bdc5068a4bd8300bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d493ec3fa20dc4972b9e3a1bc7582294a03936e69c5342bdc5068a4bd8300bc", kill_on_drop: false }`
[INFO] [stdout] 0d493ec3fa20dc4972b9e3a1bc7582294a03936e69c5342bdc5068a4bd8300bc