[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#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsthorpe%2FMerkleMountainRange" "/workspace/builds/worker-69/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-69/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sthorpe/MerkleMountainRange on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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-69/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: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "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-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f2c77cdf7d5eb12ea764cc94d1d59f021bc78adb7132460cadb6b9822d75dc02
[INFO] running `Command { std: "docker" "start" "-a" "f2c77cdf7d5eb12ea764cc94d1d59f021bc78adb7132460cadb6b9822d75dc02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2c77cdf7d5eb12ea764cc94d1d59f021bc78adb7132460cadb6b9822d75dc02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2c77cdf7d5eb12ea764cc94d1d59f021bc78adb7132460cadb6b9822d75dc02", kill_on_drop: false }`
[INFO] [stdout] f2c77cdf7d5eb12ea764cc94d1d59f021bc78adb7132460cadb6b9822d75dc02
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a0316858a5c2d4b99a38501bb3e175bce74809b7ce00938039c6e3398751fa2e
[INFO] running `Command { std: "docker" "start" "-a" "a0316858a5c2d4b99a38501bb3e175bce74809b7ce00938039c6e3398751fa2e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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]     Checking futures v0.1.29
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr] error: failed to run custom build command for `leveldb-sys v2.0.4`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/leveldb-sys-35155b1999fca902/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/github.com-1ecc6299db9ec823/leveldb-sys-2.0.4/deps/snappy-1.1.2'
[INFO] [stderr]   make: Leaving directory '/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/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/github.com-1ecc6299db9ec823/leveldb-sys-2.0.4/deps/snappy-1.1.2'
[INFO] [stderr]   make: Leaving directory '/opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/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 2171: config.log: Read-only file system
[INFO] [stderr]   ./configure: line 2181: config.log: Read-only file system
[INFO] [stderr]   make: *** No targets specified and no makefile found.  Stop.
[INFO] [stderr]   thread 'main' panicked at 'copy of output files failed', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/leveldb-sys-2.0.4/src/build.rs:47:14
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55580a130160 - std::backtrace_rs::backtrace::libunwind::trace::h0197874f43e7190f
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x55580a130160 - std::backtrace_rs::backtrace::trace_unsynchronized::hfdfd566bbbda6f2d
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55580a130160 - std::sys_common::backtrace::_print_fmt::hb3b4707c15b032a1
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x55580a130160 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::had1dceac8b072f88
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x55580a14e42c - core::fmt::write::h9a6d9c74526a6c1b
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/core/src/fmt/mod.rs:1117:17
[INFO] [stderr]      5:     0x55580a12e5e5 - std::io::Write::write_fmt::h05c3bb2bc83b8ed0
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/io/mod.rs:1667:15
[INFO] [stderr]      6:     0x55580a1319fb - std::sys_common::backtrace::_print::h10f0826b2a586b58
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x55580a1319fb - std::sys_common::backtrace::print::h0d4242fbd1ac3eb6
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x55580a1319fb - std::panicking::default_hook::{{closure}}::h275ead39fe8b8e2a
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panicking.rs:210:50
[INFO] [stderr]      9:     0x55580a131570 - std::panicking::default_hook::h5505d4d90f5984d9
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panicking.rs:227:9
[INFO] [stderr]     10:     0x55580a1320c4 - std::panicking::rust_panic_with_hook::h2f8980d1d9fd4ca0
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panicking.rs:624:17
[INFO] [stderr]     11:     0x55580a131ba0 - std::panicking::begin_panic_handler::{{closure}}::hd87853ef7e40ae97
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panicking.rs:521:13
[INFO] [stderr]     12:     0x55580a130664 - std::sys_common::backtrace::__rust_end_short_backtrace::hcab167aa940694a2
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x55580a131b09 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panicking.rs:517:5
[INFO] [stderr]     14:     0x55580a0fd381 - core::panicking::panic_fmt::hcf5f6d96e1dd7099
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/core/src/panicking.rs:93:14
[INFO] [stderr]     15:     0x55580a0fd273 - core::option::expect_failed::h0a5d8f51a88056e8
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/core/src/option.rs:1618:5
[INFO] [stderr]     16:     0x55580a11822f - core::option::Option<T>::expect::h80c9fc122c821010
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/core/src/option.rs:698:21
[INFO] [stderr]     17:     0x55580a10c442 - build_script_build::build_snappy::hef53c5aa8b3d18b7
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/leveldb-sys-2.0.4/src/build.rs:47:5
[INFO] [stderr]     18:     0x55580a10da53 - build_script_build::main::h78a5fdc179bea243
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/leveldb-sys-2.0.4/src/build.rs:129:9
[INFO] [stderr]     19:     0x55580a101b6b - core::ops::function::FnOnce::call_once::h64ca36535ae237b8
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     20:     0x55580a10a5fe - std::sys_common::backtrace::__rust_begin_short_backtrace::h6040ea44c3c4bd22
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     21:     0x55580a107e51 - std::rt::lang_start::{{closure}}::h10b12b643eae2feb
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/rt.rs:63:18
[INFO] [stderr]     22:     0x55580a1325ca - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h5e3bbb97afe2bb03
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     23:     0x55580a1325ca - std::panicking::try::do_call::h48c2d717cec4bdcb
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panicking.rs:403:40
[INFO] [stderr]     24:     0x55580a1325ca - std::panicking::try::h2a49bc215893bc14
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panicking.rs:367:19
[INFO] [stderr]     25:     0x55580a1325ca - std::panic::catch_unwind::h6d23b7c99550c7ff
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panic.rs:129:14
[INFO] [stderr]     26:     0x55580a1325ca - std::rt::lang_start_internal::{{closure}}::h251a0c0729f15896
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/rt.rs:45:48
[INFO] [stderr]     27:     0x55580a1325ca - std::panicking::try::do_call::h4830e784a9b9d1ad
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panicking.rs:403:40
[INFO] [stderr]     28:     0x55580a1325ca - std::panicking::try::h0427859d2ad3b3b9
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panicking.rs:367:19
[INFO] [stderr]     29:     0x55580a1325ca - std::panic::catch_unwind::h4079bfb63395be0f
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/panic.rs:129:14
[INFO] [stderr]     30:     0x55580a1325ca - std::rt::lang_start_internal::h408e9d26a25a1f08
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/rt.rs:45:20
[INFO] [stderr]     31:     0x55580a107e20 - std::rt::lang_start::h62400bcafa1f24c0
[INFO] [stderr]                                  at /rustc/39e1293fce4b650061e85dda88aa428f726a8444/library/std/src/rt.rs:62:5
[INFO] [stderr]     32:     0x55580a10ea0c - main
[INFO] [stderr]     33:     0x7f9e502120b3 - __libc_start_main
[INFO] [stderr]     34:     0x55580a0fdafe - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "a0316858a5c2d4b99a38501bb3e175bce74809b7ce00938039c6e3398751fa2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a0316858a5c2d4b99a38501bb3e175bce74809b7ce00938039c6e3398751fa2e", kill_on_drop: false }`
[INFO] [stdout] a0316858a5c2d4b99a38501bb3e175bce74809b7ce00938039c6e3398751fa2e