[INFO] cloning repository https://github.com/aranajhonny/private-lucet
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aranajhonny/private-lucet" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faranajhonny%2Fprivate-lucet", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faranajhonny%2Fprivate-lucet'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] aa8b968d40cf998845643ce02f1a40c098b139ff
[INFO] checking aranajhonny/private-lucet against try#b20a093d9fb1ffaa04ae9852cb034864a992bafd for pr-85073
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faranajhonny%2Fprivate-lucet" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aranajhonny/private-lucet on toolchain b20a093d9fb1ffaa04ae9852cb034864a992bafd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aranajhonny/private-lucet
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/aranajhonny/private-lucet
[INFO] tweaked toml for git repo https://github.com/aranajhonny/private-lucet written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/aranajhonny/private-lucet already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/wasmerio/inkwell`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wabt v0.9.2
[INFO] [stderr]   Downloaded cargo_toml v0.6.4
[INFO] [stderr]   Downloaded wasmer-clif-fork-wasm v0.44.0
[INFO] [stderr]   Downloaded generational-arena v0.2.3
[INFO] [stderr]   Downloaded typetag-impl v0.1.4
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[INFO] [stderr]   Downloaded cranelift-bforest v0.44.0
[INFO] [stderr]   Downloaded typetag v0.1.4
[INFO] [stderr]   Downloaded enum-methods v0.0.8
[INFO] [stderr]   Downloaded field-offset v0.1.1
[INFO] [stderr]   Downloaded llvm-sys v80.1.1
[INFO] [stderr]   Downloaded cranelift-codegen v0.44.0
[INFO] [stderr]   Downloaded cranelift-codegen-meta v0.44.0
[INFO] [stderr]   Downloaded wasmparser v0.39.1
[INFO] [stderr]   Downloaded serde-bench v0.0.7
[INFO] [stderr]   Downloaded wabt-sys v0.7.0
[INFO] [stderr]   Downloaded cranelift-native v0.44.0
[INFO] [stderr]   Downloaded dynasm v0.3.2
[INFO] [stderr]   Downloaded wasmer-clif-fork-frontend v0.44.0
[INFO] [stderr]   Downloaded dynasmrt v0.3.1
[INFO] [stderr]   Downloaded cranelift-entity v0.44.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f63b3347f11e24e1d76ca2195219d624b74fb850576c7f9b8f9adfc9306fd343
[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" "f63b3347f11e24e1d76ca2195219d624b74fb850576c7f9b8f9adfc9306fd343", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f63b3347f11e24e1d76ca2195219d624b74fb850576c7f9b8f9adfc9306fd343", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f63b3347f11e24e1d76ca2195219d624b74fb850576c7f9b8f9adfc9306fd343", kill_on_drop: false }`
[INFO] [stdout] f63b3347f11e24e1d76ca2195219d624b74fb850576c7f9b8f9adfc9306fd343
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+b20a093d9fb1ffaa04ae9852cb034864a992bafd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10b5e097757ed5f035cff90ec776a35be96ea41dc2a264e0a7c0fe43a572b669
[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" "10b5e097757ed5f035cff90ec776a35be96ea41dc2a264e0a7c0fe43a572b669", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling proc-macro2 v1.0.3
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling cc v1.0.46
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling typenum v1.11.2
[INFO] [stderr]    Compiling constant_time_eq v0.1.4
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking wasmparser v0.39.1
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.44.0
[INFO] [stderr]    Compiling cranelift-entity v0.44.0
[INFO] [stderr]    Compiling rayon-core v1.6.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]    Compiling memchr v2.2.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling ppv-lite86 v0.2.5
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]     Checking same-file v1.0.5
[INFO] [stderr]    Compiling unicode-width v0.1.6
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling cbindgen v0.9.1
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]    Compiling inkwell v0.1.0 (https://github.com/wasmerio/inkwell?branch=llvm8-0#8f480124)
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking take_mut v0.2.2
[INFO] [stderr]     Checking md5 v0.6.1
[INFO] [stderr]     Checking field-offset v0.1.1
[INFO] [stderr]     Checking kernel-net v0.1.0 (/opt/rustwide/workdir/lib/kernel-net)
[INFO] [stderr]     Checking plugin-for-example v0.1.0 (/opt/rustwide/workdir/examples/plugin-for-example)
[INFO] [stderr]    Compiling bincode v1.1.4
[INFO] [stderr]    Compiling indexmap v1.3.0
[INFO] [stderr]    Compiling wasmer-wasi-tests v0.9.0 (/opt/rustwide/workdir/lib/wasi-tests)
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling wasmer-emscripten-tests v0.9.0 (/opt/rustwide/workdir/lib/emscripten-tests)
[INFO] [stderr]     Checking lock_api v0.3.1
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking c2-chacha v0.2.2
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[INFO] [stderr]     Checking walkdir v2.2.9
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]     Checking ryu v1.0.0
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.44.0
[INFO] [stderr]    Compiling owning_ref v0.3.3
[INFO] [stderr]     Checking cranelift-bforest v0.44.0
[INFO] [stderr]     Checking parallel-guest v0.1.0 (/opt/rustwide/workdir/examples/parallel-guest)
[INFO] [stderr]     Checking regex-automata v0.1.8
[INFO] [stderr]     Checking rand_xoshiro v0.1.0
[INFO] [stdout] warning: function is never used: `print_char`
[INFO] [stdout]  --> examples/parallel-guest/src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn print_char(c: u32);
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_str`
[INFO] [stdout]  --> examples/parallel-guest/src/main.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn print_str(s: &str) {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling enum-methods v0.0.8
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_char`
[INFO] [stdout]  --> examples/parallel-guest/src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     fn print_char(c: u32);
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `print_str`
[INFO] [stdout]  --> examples/parallel-guest/src/main.rs:9:4
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn print_str(s: &str) {
[INFO] [stdout]   |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling blake2b_simd v0.5.8
[INFO] [stderr]    Compiling parking_lot_core v0.6.2
[INFO] [stderr]    Compiling parking_lot v0.9.0
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]    Compiling scroll v0.9.2
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling raw-cpuid v6.1.0
[INFO] [stderr]    Compiling wabt-sys v0.7.0
[INFO] [stderr]    Compiling wasmer-win-exception-handler v0.9.0 (/opt/rustwide/workdir/lib/win-exception-handler)
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]     Checking criterion-plot v0.3.1
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking errno v0.2.4
[INFO] [stderr]     Checking page_size v0.4.1
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking getrandom v0.1.12
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking wasmer-dev-utils v0.9.0 (/opt/rustwide/workdir/lib/dev-utils)
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking crossbeam-deque v0.7.1
[INFO] [stderr]     Checking generic-array v0.12.3
[INFO] [stderr]     Checking dynasmrt v0.3.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking aho-corasick v0.7.6
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]    Compiling wasmer-runtime-core v0.9.0 (/opt/rustwide/workdir/lib/runtime-core)
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking rayon v1.2.0
[INFO] [stderr]     Checking regex v1.3.1
[INFO] [stderr]     Checking tempfile v3.1.0
[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,artifacts --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="fold"' --cfg 'feature="full"' --cfg 'feature="parsing"' --cfg 'feature="printing"' --cfg 'feature="proc-macro"' --cfg 'feature="quote"' --cfg 'feature="visit"' -C metadata=0cfe21f23aa60b20 -C extra-filename=-0cfe21f23aa60b20 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-5ce4acc7c9693189.rmeta --extern quote=/opt/rustwide/target/debug/deps/libquote-885138c20d863b76.rmeta --extern unicode_xid=/opt/rustwide/target/debug/deps/libunicode_xid-a81338cd23b23cba.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" "10b5e097757ed5f035cff90ec776a35be96ea41dc2a264e0a7c0fe43a572b669", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10b5e097757ed5f035cff90ec776a35be96ea41dc2a264e0a7c0fe43a572b669", kill_on_drop: false }`
[INFO] [stdout] 10b5e097757ed5f035cff90ec776a35be96ea41dc2a264e0a7c0fe43a572b669