[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#59a256151e578f525a26127f2c3e3a6c7e2982ca for pr-149291-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsthorpe%2FMerkleMountainRange" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[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-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sthorpe/MerkleMountainRange on toolchain 59a256151e578f525a26127f2c3e3a6c7e2982ca
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+59a256151e578f525a26127f2c3e3a6c7e2982ca" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+59a256151e578f525a26127f2c3e3a6c7e2982ca" "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#59a256151e578f525a26127f2c3e3a6c7e2982ca for pr-149291-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsthorpe%2FMerkleMountainRange" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[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-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sthorpe/MerkleMountainRange on toolchain 59a256151e578f525a26127f2c3e3a6c7e2982ca
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+59a256151e578f525a26127f2c3e3a6c7e2982ca" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+59a256151e578f525a26127f2c3e3a6c7e2982ca" "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 leveldb v0.8.4
[INFO] [stderr]   Downloaded db-key v0.0.5
[INFO] [stderr]   Downloaded leveldb-sys v2.0.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+59a256151e578f525a26127f2c3e3a6c7e2982ca" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91797da428f3d8e19d8d15162c5c5cceea23cdf970d38e2abc83f3d31deb8832
[INFO] running `Command { std: "docker" "start" "-a" "91797da428f3d8e19d8d15162c5c5cceea23cdf970d38e2abc83f3d31deb8832", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91797da428f3d8e19d8d15162c5c5cceea23cdf970d38e2abc83f3d31deb8832", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91797da428f3d8e19d8d15162c5c5cceea23cdf970d38e2abc83f3d31deb8832", kill_on_drop: false }`
[INFO] [stdout] 91797da428f3d8e19d8d15162c5c5cceea23cdf970d38e2abc83f3d31deb8832
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+59a256151e578f525a26127f2c3e3a6c7e2982ca" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ebca3e872c4e91c30afa457e6e6ba5ccc89f49e02459704883232a5918d38b51
[INFO] running `Command { std: "docker" "start" "-a" "ebca3e872c4e91c30afa457e6e6ba5ccc89f49e02459704883232a5918d38b51", kill_on_drop: false }`
[INFO] [stderr]    Compiling leveldb-sys v2.0.4
[INFO] [stderr]     Checking db-key v0.0.5
[INFO] [stderr]     Checking rand v0.4.6
[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' (66) 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:     0x5722ef364142 - std::backtrace_rs::backtrace::libunwind::trace::hacaa6b5fff7192de
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5722ef364142 - std::backtrace_rs::backtrace::trace_unsynchronized::h39f4bc3354fcdb7f
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5722ef364142 - std::sys::backtrace::_print_fmt::hf016b06b7c6dd9dd
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5722ef364142 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hc6649545dfcdfb73
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5722ef3735b7 - core::fmt::rt::Argument::fmt::h575ebb39ec7be4f2
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x5722ef3735b7 - core::fmt::write::h6035d82bb48cebf6
[INFO] [stderr]      6:     0x5722ef338866 - std::io::default_write_fmt::h13c0d526f16a40d7
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5722ef338866 - std::io::Write::write_fmt::h6dcd4373b8ae4c63
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]      8:     0x5722ef344361 - std::sys::backtrace::BacktraceLock::print::hbd75a7494dee6f7d
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x5722ef344361 - std::panicking::default_hook::{{closure}}::h112c4ca840d0dd67
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/std/src/panicking.rs:293:27
[INFO] [stderr]     10:     0x5722ef344186 - std::panicking::default_hook::h855d254ea4a5fc37
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/std/src/panicking.rs:320:9
[INFO] [stderr]     11:     0x5722ef34486b - std::panicking::panic_with_hook::hb7a7819f84b450e4
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/std/src/panicking.rs:826:13
[INFO] [stderr]     12:     0x5722ef3446e8 - std::panicking::panic_handler::{{closure}}::hdc3de5dd25d22757
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/std/src/panicking.rs:699:13
[INFO] [stderr]     13:     0x5722ef342a09 - std::sys::backtrace::__rust_end_short_backtrace::hc67923e794d49ea0
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x5722ef32d6ad - __rustc[d820a0531ae186d7]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/std/src/panicking.rs:690:5
[INFO] [stderr]     15:     0x5722ef37676c - core::panicking::panic_fmt::h67fcc68d15d8fc3f
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x5722ef376044 - core::panicking::panic_display::hbb2bfe1e49d6ffe8
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/core/src/panicking.rs:259:5
[INFO] [stderr]     17:     0x5722ef376044 - core::option::expect_failed::h03ff251fb6b39458
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/core/src/option.rs:2184:5
[INFO] [stderr]     18:     0x5722ef325945 - <core[e7ef13ee8a468e99]::option::Option<u64>>::expect
[INFO] [stderr]     19:     0x5722ef329287 - build_script_build[f4e12da48990a6f1]::build_snappy
[INFO] [stderr]     20:     0x5722ef32a83e - build_script_build[f4e12da48990a6f1]::main
[INFO] [stderr]     21:     0x5722ef324153 - <fn() as core[e7ef13ee8a468e99]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     22:     0x5722ef324eb6 - std[9701959568c16fc9]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     23:     0x5722ef322b39 - std[9701959568c16fc9]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     24:     0x5722ef339f8a - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hd8be2987443f6d9e
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     25:     0x5722ef339f8a - std::panicking::catch_unwind::do_call::hd72fac10c1f3c3f8
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/std/src/panicking.rs:582:40
[INFO] [stderr]     26:     0x5722ef339f8a - std::panicking::catch_unwind::h7e445492df95970f
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/std/src/panicking.rs:545:19
[INFO] [stderr]     27:     0x5722ef339f8a - std::panic::catch_unwind::hf1b5b788deb035ef
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/std/src/panic.rs:359:14
[INFO] [stderr]     28:     0x5722ef339f8a - std::rt::lang_start_internal::{{closure}}::hcfd3eae50fbf6b74
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/std/src/rt.rs:175:24
[INFO] [stderr]     29:     0x5722ef339f8a - std::panicking::catch_unwind::do_call::hf71bbc91193c4ee3
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/std/src/panicking.rs:582:40
[INFO] [stderr]     30:     0x5722ef339f8a - std::panicking::catch_unwind::h7742b56cb7e1ef4f
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/std/src/panicking.rs:545:19
[INFO] [stderr]     31:     0x5722ef339f8a - std::panic::catch_unwind::hfadcd3692110199e
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/std/src/panic.rs:359:14
[INFO] [stderr]     32:     0x5722ef339f8a - std::rt::lang_start_internal::h55ea98befae0b0a3
[INFO] [stderr]                                  at /rustc/59a256151e578f525a26127f2c3e3a6c7e2982ca/library/std/src/rt.rs:171:5
[INFO] [stderr]     33:     0x5722ef321221 - std[9701959568c16fc9]::rt::lang_start::<()>
[INFO] [stderr]     34:     0x5722ef32d385 - main
[INFO] [stderr]     35:     0x73e64b5071ca - <unknown>
[INFO] [stderr]     36:     0x73e64b50728b - __libc_start_main
[INFO] [stderr]     37:     0x5722ef31ac65 - _start
[INFO] [stderr]     38:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "ebca3e872c4e91c30afa457e6e6ba5ccc89f49e02459704883232a5918d38b51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebca3e872c4e91c30afa457e6e6ba5ccc89f49e02459704883232a5918d38b51", kill_on_drop: false }`
[INFO] [stdout] ebca3e872c4e91c30afa457e6e6ba5ccc89f49e02459704883232a5918d38b51