[INFO] cloning repository https://github.com/VenkatTeja/libra
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/VenkatTeja/libra" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVenkatTeja%2Flibra", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVenkatTeja%2Flibra'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bdacbf844ceff673fce1473c8fbba79fe8f05d19
[INFO] checking VenkatTeja/libra against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVenkatTeja%2Flibra" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/VenkatTeja/libra 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] removed /workspace/builds/worker-4/source/.cargo/config
[INFO] removed /workspace/builds/worker-4/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/VenkatTeja/libra
[INFO] finished tweaking git repo https://github.com/VenkatTeja/libra
[INFO] tweaked toml for git repo https://github.com/VenkatTeja/libra written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/VenkatTeja/libra 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]     Updating git repository `https://github.com/novifinancial/curve25519-dalek.git`
[INFO] [stderr]     Updating git repository `https://github.com/novifinancial/ed25519-dalek.git`
[INFO] [stderr]     Updating git repository `https://github.com/novifinancial/x25519-dalek.git`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 29c8e9ceb55ffbe26a799c67894444487f57e66a3e5258cb0ade1ea92a6e6362
[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" "29c8e9ceb55ffbe26a799c67894444487f57e66a3e5258cb0ade1ea92a6e6362", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "29c8e9ceb55ffbe26a799c67894444487f57e66a3e5258cb0ade1ea92a6e6362", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "29c8e9ceb55ffbe26a799c67894444487f57e66a3e5258cb0ade1ea92a6e6362", kill_on_drop: false }`
[INFO] [stdout] 29c8e9ceb55ffbe26a799c67894444487f57e66a3e5258cb0ade1ea92a6e6362
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 45159c4dd90e87e155402596840fe14174bd4884160a0e0bbf07c393eff43af8
[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" "45159c4dd90e87e155402596840fe14174bd4884160a0e0bbf07c393eff43af8", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]    Compiling serde v1.0.116
[INFO] [stderr]     Checking subtle v2.3.0
[INFO] [stderr]     Checking block-padding v0.2.1
[INFO] [stderr]     Checking cpuid-bool v0.1.2
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]     Checking fixedbitset v0.2.0
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling getrandom v0.1.15
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking mirai-annotations v1.10.1
[INFO] [stderr]     Checking fiat-crypto v0.1.5
[INFO] [stderr]     Checking signature v1.2.2
[INFO] [stderr]     Checking futures-core v0.3.6
[INFO] [stderr]    Compiling pin-project-internal v0.4.26
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]     Checking futures-sink v0.3.6
[INFO] [stderr]     Checking futures-io v0.3.6
[INFO] [stderr]    Compiling prometheus v0.10.0
[INFO] [stderr]     Checking tinyvec v0.3.4
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]     Checking chunked_transfer v1.2.0
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking libra-global-constants v0.1.0 (/opt/rustwide/workdir/config/global-constants)
[INFO] [stderr]    Compiling libra-metrics v0.1.0 (/opt/rustwide/workdir/common/metrics)
[INFO] [stderr]     Checking base64 v0.12.3
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking fake-simd v0.1.2
[INFO] [stderr]     Checking c_linked_list v1.1.1
[INFO] [stderr]     Checking keccak v0.1.0
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]    Compiling vdf v0.1.0 (/opt/rustwide/workdir/ol/verifiable_delay/vdf)
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]    Compiling encoding_rs v0.8.24
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]   --> ol/verifiable_delay/vdf/build.rs:74:62
[INFO] [stdout]    |
[INFO] [stdout] 74 |         "#[allow(warnings)]\nconst {}: [{}; {}] = {:#?};\n\n";
[INFO] [stdout]    |                                                              ^
[INFO] [stdout] ...
[INFO] [stdout] 84 |     write!(f, const_fmt!(), name, t, obj.len(), obj).expect("i/o error in build script");
[INFO] [stdout]    |               ------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]    = note: this warning originates in the macro `const_fmt` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling bindgen v0.54.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling rustc-hash v1.1.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling lazycell v1.3.0
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
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[INFO] [stderr]     Checking ol-fixtures v0.1.0 (/opt/rustwide/workdir/ol/fixtures)
[INFO] [stderr]     Checking object v0.20.0
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[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
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[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling target-spec v0.4.0
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[INFO] [stderr]    Compiling k8s-openapi v0.9.0
[INFO] [stderr]     Checking nested v0.1.1
[INFO] [stderr]    Compiling trybuild v1.0.35
[INFO] [stderr]     Checking arbitrary v0.4.6
[INFO] [stderr]    Compiling libra-fuzz v0.1.0 (/opt/rustwide/workdir/testsuite/libra-fuzzer/fuzz)
[INFO] [stderr]     Checking hex v0.3.2
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[INFO] [stderr]    Compiling unindent v0.1.6
[INFO] [stderr]     Checking shell-words v1.0.0
[INFO] [stderr]     Checking assert_approx_eq v1.1.0
[INFO] [stderr]     Checking serializer-tests v0.1.0 (/opt/rustwide/workdir/language/vm/serializer-tests)
[INFO] [stderr]     Checking bytecode-verifier-tests v0.1.0 (/opt/rustwide/workdir/language/bytecode-verifier/bytecode-verifier-tests)
[INFO] [stderr]     Checking smoke-test v0.1.0 (/opt/rustwide/workdir/testsuite/smoke-test)
[INFO] [stderr]    Compiling generic-array v0.14.4
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[INFO] [stderr]     Checking block-padding v0.1.5
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[INFO] [stderr]    Compiling clang-sys v0.29.3
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[INFO] [stderr]    Compiling rand v0.6.5
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[INFO] [stderr]    Compiling memchr v2.3.3
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[INFO] [stderr]     Checking diffus v0.9.1
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[INFO] [stderr]     Checking twoway v0.1.8
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[INFO] [stderr]     Checking csv-core v0.1.10
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[INFO] [stderr]     Checking tiny-keccak v2.0.2
[INFO] [stderr]     Checking smallvec v0.6.13
[INFO] [stderr]    Compiling aho-corasick v0.7.13
[INFO] [stderr]     Checking num-format v0.4.0
[INFO] [stderr]     Checking idna v0.2.0
[INFO] [stderr]     Checking regex v1.4.5
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking digest v0.9.0
[INFO] [stderr]     Checking block-buffer v0.9.0
[INFO] [stderr]     Checking crypto-mac v0.8.0
[INFO] [stderr]     Checking block-cipher v0.8.0
[INFO] [stderr]     Checking universal-hash v0.4.0
[INFO] [stderr]     Checking aead v0.3.2
[INFO] [stderr]     Checking crypto-mac v0.9.1
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[INFO] [stderr]     Checking tokio-executor v0.1.10
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[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
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[INFO] [stderr]    Compiling jobserver v0.1.21
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]     Checking sha2 v0.8.2
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking sha-1 v0.8.2
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[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking net2 v0.2.34
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking hostname v0.3.1
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking get_if_addrs v0.5.3
[INFO] [stderr]     Checking flate2 v1.0.18
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking dirs-sys-next v0.1.0
[INFO] [stderr]     Checking rpassword v5.0.0
[INFO] [stderr]     Checking terminal_size v0.1.16
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking backtrace v0.3.51
[INFO] [stderr]     Checking termion v1.5.5
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking getrandom v0.2.0
[INFO] [stderr]     Checking dirs v1.0.5
[INFO] [stderr]     Checking term_size v0.3.2
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking num-complex v0.3.0
[INFO] [stderr]     Checking classgroup v0.1.0 (/opt/rustwide/workdir/ol/verifiable_delay/classgroup)
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking ordered-float v2.0.0
[INFO] [stderr]     Checking sha-1 v0.9.1
[INFO] [stderr]     Checking sha2 v0.9.3
[INFO] [stderr]     Checking ripemd160 v0.9.1
[INFO] [stderr]     Checking sha3 v0.9.1
[INFO] [stderr]     Checking hmac v0.8.1
[INFO] [stdout] warning: `__gmpz_sizeinbase` redeclared with a different signature
[INFO] [stdout]   --> ol/verifiable_delay/classgroup/src/gmp_classgroup/ffi.rs:48:5
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn __gmpz_sizeinbase(op: &Mpz, base: c_int) -> size_t;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ this signature doesn't match the previous declaration
[INFO] [stdout]    |
[INFO] [stdout]   ::: ol/verifiable_delay/classgroup/src/gmp/mpz.rs:50:5
[INFO] [stdout]    |
[INFO] [stdout] 50 |     fn __gmpz_sizeinbase(op: mpz_srcptr, base: c_int) -> size_t;
[INFO] [stdout]    |     ------------------------------------------------------------ `__gmpz_sizeinbase` previously declared here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(clashing_extern_declarations)]` on by default
[INFO] [stdout]    = note: expected `unsafe extern "C" fn(*const mpz_struct, i32) -> usize`
[INFO] [stdout]               found `for<'r> unsafe extern "C" fn(&'r Mpz, i32) -> usize`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `__gmpz_export` redeclared with a different signature
[INFO] [stdout]    --> ol/verifiable_delay/classgroup/src/gmp_classgroup/ffi.rs:57:5
[INFO] [stdout]     |
[INFO] [stdout] 57  | /     fn __gmpz_export(
[INFO] [stdout] 58  | |         rop: *mut c_void,
[INFO] [stdout] 59  | |         countp: *mut size_t,
[INFO] [stdout] 60  | |         order: c_int,
[INFO] [stdout] ...   |
[INFO] [stdout] 64  | |         op: &Mpz,
[INFO] [stdout] 65  | |     ) -> *mut c_void;
[INFO] [stdout]     | |_____________________^ this signature doesn't match the previous declaration
[INFO] [stdout]     |
[INFO] [stdout]    ::: ol/verifiable_delay/classgroup/src/gmp/mpz.rs:101:5
[INFO] [stdout]     |
[INFO] [stdout] 101 | /     fn __gmpz_export(
[INFO] [stdout] 102 | |         rop: *mut c_void,
[INFO] [stdout] 103 | |         countp: *mut size_t,
[INFO] [stdout] 104 | |         order: c_int,
[INFO] [stdout] ...   |
[INFO] [stdout] 108 | |         op: mpz_srcptr,
[INFO] [stdout] 109 | |     );
[INFO] [stdout]     | |______- `__gmpz_export` previously declared here
[INFO] [stdout]     |
[INFO] [stdout]     = note: expected `unsafe extern "C" fn(*mut c_void, *mut usize, i32, usize, i32, usize, *const mpz_struct)`
[INFO] [stdout]                found `for<'r> unsafe extern "C" fn(*mut c_void, *mut usize, i32, usize, i32, usize, &'r Mpz) -> *mut c_void`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking aes-soft v0.5.0
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking polyval v0.4.0
[INFO] [stderr]     Checking hmac v0.9.0
[INFO] [stderr]     Checking ajson v0.2.3
[INFO] [stderr]     Checking Inflector v0.11.4
[INFO] [stderr]     Checking pem v0.8.1
[INFO] [stderr]     Checking tokio-timer v0.2.13
[INFO] [stderr]     Checking crossbeam-deque v0.7.3
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]    Compiling cexpr v0.4.0
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking dirs-next v1.0.1
[INFO] [stderr] error: could not compile `syn`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name syn /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/syn-0.15.44/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type lib --emit=dep-info,metadata,link -C embed-bitcode=no -C debuginfo=2 --cfg 'feature="clone-impls"' --cfg 'feature="default"' --cfg 'feature="derive"' --cfg 'feature="extra-traits"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=d484e226454c72b6 -C extra-filename=-d484e226454c72b6 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-9484658faf025066.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-b9bf6e54186ef813.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-17df5e5ca0bb5bda.rmeta --cap-lints allow --cap-lints=forbid --cfg syn_can_match_trailing_dollar --cfg syn_can_use_thread_id --cfg syn_can_use_associated_constants --cfg syn_can_call_macro_by_path` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "45159c4dd90e87e155402596840fe14174bd4884160a0e0bbf07c393eff43af8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45159c4dd90e87e155402596840fe14174bd4884160a0e0bbf07c393eff43af8", kill_on_drop: false }`
[INFO] [stdout] 45159c4dd90e87e155402596840fe14174bd4884160a0e0bbf07c393eff43af8