[INFO] cloning repository https://github.com/theduke/rust-serialization-benchmarks [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/theduke/rust-serialization-benchmarks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftheduke%2Frust-serialization-benchmarks"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftheduke%2Frust-serialization-benchmarks'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 4d24c6531d75942ef58ef4005e6dbb8f661b2225 [INFO] testing theduke/rust-serialization-benchmarks against 1.44.0 for beta-1.45-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftheduke%2Frust-serialization-benchmarks" "/workspace/builds/worker-2/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/theduke/rust-serialization-benchmarks on toolchain 1.44.0 [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/theduke/rust-serialization-benchmarks [INFO] finished tweaking git repo https://github.com/theduke/rust-serialization-benchmarks [INFO] tweaked toml for git repo https://github.com/theduke/rust-serialization-benchmarks written to /workspace/builds/worker-2/source/Cargo.toml [INFO] crate git repo https://github.com/theduke/rust-serialization-benchmarks already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 6a6362b23ff04fa9e0ab7e2686986b460d7f58cef65e79e0fdd0db4476291cd3 [INFO] running `"docker" "start" "-a" "6a6362b23ff04fa9e0ab7e2686986b460d7f58cef65e79e0fdd0db4476291cd3"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling libc v0.2.19 [INFO] [stderr] Compiling serde v0.8.21 [INFO] [stderr] Compiling num-traits v0.1.36 [INFO] [stderr] Compiling rustc-serialize v0.3.22 [INFO] [stderr] Compiling quote v0.3.10 [INFO] [stderr] Compiling unicode-xid v0.0.3 [INFO] [stderr] Compiling gcc v0.3.41 [INFO] [stderr] Compiling byteorder v1.0.0 [INFO] [stderr] Compiling byteorder v0.5.3 [INFO] [stderr] Compiling regex-syntax v0.3.9 [INFO] [stderr] Compiling dtoa v0.2.2 [INFO] [stderr] Compiling utf8-ranges v0.1.3 [INFO] [stderr] Compiling linked-hash-map v0.0.9 [INFO] [stderr] Compiling lazy_static v0.2.2 [INFO] [stderr] Compiling iter-read v0.1.0 [INFO] [stderr] Compiling itoa v0.1.1 [INFO] [stderr] Compiling byteorder v0.3.13 [INFO] [stderr] Compiling bencher v0.1.2 (https://github.com/theduke/bencher.git#59ee1f8f) [INFO] [stderr] Compiling rand v0.3.15 [INFO] [stderr] Compiling time v0.1.35 [INFO] [stderr] Compiling memchr v0.1.11 [INFO] [stderr] Compiling thread-id v2.0.0 [INFO] [stderr] Compiling syn v0.10.5 [INFO] [stderr] Compiling thread_local v0.2.7 [INFO] [stderr] Compiling aho-corasick v0.5.3 [INFO] [stderr] Compiling num-integer v0.1.32 [INFO] [stderr] Compiling rmp v0.8.1 [INFO] [stderr] Compiling num-iter v0.1.32 [INFO] [stderr] Compiling rust-crypto v0.2.36 [INFO] [stderr] Compiling num v0.1.36 [INFO] [stderr] Compiling chrono v0.2.25 [INFO] [stderr] Compiling regex v0.1.80 [INFO] [stderr] Compiling serde_codegen_internals v0.11.3 [INFO] [stderr] Compiling serde_codegen v0.8.21 [INFO] [stderr] Compiling num-bigint v0.1.35 [INFO] [stderr] Compiling cbor v0.4.0 [INFO] [stderr] Compiling serde_test v0.8.21 [INFO] [stderr] Compiling serde_cbor v0.4.0 [INFO] [stderr] Compiling rmp-serde v0.11.0 [INFO] [stderr] Compiling bincode v0.6.1 [INFO] [stderr] Compiling serde_json v0.8.4 [INFO] [stderr] Compiling toml v0.2.1 [INFO] [stderr] Compiling serde-pickle v0.2.0 [INFO] [stderr] Compiling linked-hash-map v0.3.0 [INFO] [stderr] Compiling serde_derive v0.8.21 [INFO] [stderr] Compiling yaml-rust v0.3.5 [INFO] [stderr] Compiling serde-hjson v0.8.1 [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stderr] --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_derive-0.8.21/src/lib.rs:1:1 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(proc_macro, proc_macro_lib)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0554`. [INFO] [stderr] error: could not compile `serde_derive`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "6a6362b23ff04fa9e0ab7e2686986b460d7f58cef65e79e0fdd0db4476291cd3"` [INFO] running `"docker" "rm" "-f" "6a6362b23ff04fa9e0ab7e2686986b460d7f58cef65e79e0fdd0db4476291cd3"` [INFO] [stdout] 6a6362b23ff04fa9e0ab7e2686986b460d7f58cef65e79e0fdd0db4476291cd3