[INFO] cloning repository https://github.com/sthorpe/MerkleMountainRange
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sthorpe/MerkleMountainRange" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsthorpe%2FMerkleMountainRange", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsthorpe%2FMerkleMountainRange'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 97567c73a1de8d30710201261b1927b5c0e1ac0e
[INFO] checking sthorpe/MerkleMountainRange against try#5e7498e6740d105521420ac0ab146e2c7a21596d for pr-138363
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsthorpe%2FMerkleMountainRange" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sthorpe/MerkleMountainRange on toolchain 5e7498e6740d105521420ac0ab146e2c7a21596d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5e7498e6740d105521420ac0ab146e2c7a21596d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sthorpe/MerkleMountainRange
[INFO] finished tweaking git repo https://github.com/sthorpe/MerkleMountainRange
[INFO] tweaked toml for git repo https://github.com/sthorpe/MerkleMountainRange written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/sthorpe/MerkleMountainRange already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5e7498e6740d105521420ac0ab146e2c7a21596d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking sthorpe/MerkleMountainRange against try#5e7498e6740d105521420ac0ab146e2c7a21596d for pr-138363
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsthorpe%2FMerkleMountainRange" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sthorpe/MerkleMountainRange on toolchain 5e7498e6740d105521420ac0ab146e2c7a21596d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5e7498e6740d105521420ac0ab146e2c7a21596d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sthorpe/MerkleMountainRange
[INFO] finished tweaking git repo https://github.com/sthorpe/MerkleMountainRange
[INFO] tweaked toml for git repo https://github.com/sthorpe/MerkleMountainRange written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/sthorpe/MerkleMountainRange already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5e7498e6740d105521420ac0ab146e2c7a21596d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded db-key v0.0.5
[INFO] [stderr]   Downloaded leveldb v0.8.4
[INFO] [stderr]   Downloaded leveldb-sys v2.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+5e7498e6740d105521420ac0ab146e2c7a21596d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c8dec214e7f0ad4c4726d9d6de2a74e31d9ffe85f8778edd0a9dc3e6fded07f0
[INFO] running `Command { std: "docker" "start" "-a" "c8dec214e7f0ad4c4726d9d6de2a74e31d9ffe85f8778edd0a9dc3e6fded07f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c8dec214e7f0ad4c4726d9d6de2a74e31d9ffe85f8778edd0a9dc3e6fded07f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8dec214e7f0ad4c4726d9d6de2a74e31d9ffe85f8778edd0a9dc3e6fded07f0", kill_on_drop: false }`
[INFO] [stdout] c8dec214e7f0ad4c4726d9d6de2a74e31d9ffe85f8778edd0a9dc3e6fded07f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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" "RUSTDOCFLAGS=--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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+5e7498e6740d105521420ac0ab146e2c7a21596d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ec1de9aadc9ffad443019724aede087c81bc5eafc96bbd007f7b20ba65b5554
[INFO] running `Command { std: "docker" "start" "-a" "0ec1de9aadc9ffad443019724aede087c81bc5eafc96bbd007f7b20ba65b5554", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling leveldb-sys v2.0.4
[INFO] [stderr]     Checking db-key v0.0.5
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr] error: failed to run custom build command for `leveldb-sys v2.0.4`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/leveldb-sys-aac651626c32d7bc/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   [build] Started
[INFO] [stderr]   [snappy] Cleaning
[INFO] [stderr]   make: Entering directory '/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/leveldb-sys-2.0.4/deps/snappy-1.1.2'
[INFO] [stderr]   make: Leaving directory '/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/leveldb-sys-2.0.4/deps/snappy-1.1.2'
[INFO] [stderr]   [snappy] Configuring
[INFO] [stderr]   [snappy] Building
[INFO] [stderr]   make: Entering directory '/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/leveldb-sys-2.0.4/deps/snappy-1.1.2'
[INFO] [stderr]   make: Leaving directory '/opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/leveldb-sys-2.0.4/deps/snappy-1.1.2'
[INFO] [stderr]   [build] Copying output files
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   make: *** No rule to make target 'distclean'.  Stop.
[INFO] [stderr]   ./configure: line 2175: config.log: Read-only file system
[INFO] [stderr]   ./configure: line 2185: config.log: Read-only file system
[INFO] [stderr]   make: *** No targets specified and no makefile found.  Stop.
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/leveldb-sys-2.0.4/src/build.rs:47:14:
[INFO] [stderr]   copy of output files failed
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x61238d363162 - std::backtrace_rs::backtrace::libunwind::trace::h15ad98174566cc7b
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x61238d363162 - std::backtrace_rs::backtrace::trace_unsynchronized::h41b0cd54c5b0f749
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x61238d363162 - std::sys::backtrace::_print_fmt::h4defa765c2e3b9ef
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x61238d363162 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h57ae494f79cf7fe0
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x61238d385543 - core::fmt::rt::Argument::fmt::h0c6336d7c44b742c
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/core/src/fmt/rt.rs:185:76
[INFO] [stderr]      5:     0x61238d385543 - core::fmt::write::hb802253d5bbe5d30
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/core/src/fmt/mod.rs:1449:21
[INFO] [stderr]      6:     0x61238d360643 - std::io::Write::write_fmt::h926d34fb54082348
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/std/src/io/mod.rs:1890:15
[INFO] [stderr]      7:     0x61238d362fb2 - std::sys::backtrace::BacktraceLock::print::h5d6f5b3682f5fa51
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      8:     0x61238d3640f0 - std::panicking::default_hook::{{closure}}::h3dbea703f9ecff46
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/std/src/panicking.rs:298:22
[INFO] [stderr]      9:     0x61238d363e8d - std::panicking::default_hook::ha36062665d1e5827
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/std/src/panicking.rs:325:9
[INFO] [stderr]     10:     0x61238d3649c2 - std::panicking::rust_panic_with_hook::h68ae6f1a4b26240f
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/std/src/panicking.rs:831:13
[INFO] [stderr]     11:     0x61238d36485a - std::panicking::begin_panic_handler::{{closure}}::h58fbf41bcd482739
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/std/src/panicking.rs:704:13
[INFO] [stderr]     12:     0x61238d363659 - std::sys::backtrace::__rust_end_short_backtrace::hfd29e8e8596f56b8
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/std/src/sys/backtrace.rs:168:18
[INFO] [stderr]     13:     0x61238d3644ed - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/std/src/panicking.rs:695:5
[INFO] [stderr]     14:     0x61238d3847c0 - core::panicking::panic_fmt::h7713a0625014960b
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/core/src/panicking.rs:75:14
[INFO] [stderr]     15:     0x61238d38479b - core::panicking::panic_display::hbdca95e2e5f09416
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/core/src/panicking.rs:261:5
[INFO] [stderr]     16:     0x61238d38479b - core::option::expect_failed::hae93267127634732
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/core/src/option.rs:2024:5
[INFO] [stderr]     17:     0x61238d339275 - core::option::Option<T>::expect::h9d6863630ea207c3
[INFO] [stderr]     18:     0x61238d334908 - build_script_build::build_snappy::hf57d8ceab81dc526
[INFO] [stderr]     19:     0x61238d335f2b - build_script_build::main::hbda2201466e3d30b
[INFO] [stderr]     20:     0x61238d337c43 - core::ops::function::FnOnce::call_once::h362910a36a64e72b
[INFO] [stderr]     21:     0x61238d3375f6 - std::sys::backtrace::__rust_begin_short_backtrace::h379ca3b3c3bb4ea6
[INFO] [stderr]     22:     0x61238d332009 - std::rt::lang_start::{{closure}}::hc9eb2b4f6c3e8634
[INFO] [stderr]     23:     0x61238d35d100 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::he6356a402b3dbdad
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     24:     0x61238d35d100 - std::panicking::try::do_call::h3a0a03934916643e
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/std/src/panicking.rs:587:40
[INFO] [stderr]     25:     0x61238d35d100 - std::panicking::try::hdf55d54e6dab402a
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/std/src/panicking.rs:550:19
[INFO] [stderr]     26:     0x61238d35d100 - std::panic::catch_unwind::h0364dd30085cffb4
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/std/src/panic.rs:359:14
[INFO] [stderr]     27:     0x61238d35d100 - std::rt::lang_start_internal::{{closure}}::h18ed79958053a332
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/std/src/rt.rs:168:24
[INFO] [stderr]     28:     0x61238d35d100 - std::panicking::try::do_call::hccff9fe20ea7316c
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/std/src/panicking.rs:587:40
[INFO] [stderr]     29:     0x61238d35d100 - std::panicking::try::h8e5da6956d8a670e
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/std/src/panicking.rs:550:19
[INFO] [stderr]     30:     0x61238d35d100 - std::panic::catch_unwind::h7a5ab8c81dbc7614
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/std/src/panic.rs:359:14
[INFO] [stderr]     31:     0x61238d35d100 - std::rt::lang_start_internal::h7bb17c44eb51fc71
[INFO] [stderr]                                  at /rustc/5e7498e6740d105521420ac0ab146e2c7a21596d/library/std/src/rt.rs:164:5
[INFO] [stderr]     32:     0x61238d331ff1 - std::rt::lang_start::hc9825f99b1089793
[INFO] [stderr]     33:     0x61238d336ea5 - main
[INFO] [stderr]     34:     0x7a2250facd90 - <unknown>
[INFO] [stderr]     35:     0x7a2250face40 - __libc_start_main
[INFO] [stderr]     36:     0x61238d32b0a5 - _start
[INFO] [stderr]     37:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "0ec1de9aadc9ffad443019724aede087c81bc5eafc96bbd007f7b20ba65b5554", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ec1de9aadc9ffad443019724aede087c81bc5eafc96bbd007f7b20ba65b5554", kill_on_drop: false }`
[INFO] [stdout] 0ec1de9aadc9ffad443019724aede087c81bc5eafc96bbd007f7b20ba65b5554