[INFO] cloning repository https://github.com/EllieTakacs/Dialogue-Graph
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/EllieTakacs/Dialogue-Graph" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEllieTakacs%2FDialogue-Graph"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEllieTakacs%2FDialogue-Graph'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 025c90950c15b56e7b46134ad4bec3f8e652bf84
[INFO] testing EllieTakacs/Dialogue-Graph against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEllieTakacs%2FDialogue-Graph" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/EllieTakacs/Dialogue-Graph 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/EllieTakacs/Dialogue-Graph
[INFO] finished tweaking git repo https://github.com/EllieTakacs/Dialogue-Graph
[INFO] tweaked toml for git repo https://github.com/EllieTakacs/Dialogue-Graph written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/EllieTakacs/Dialogue-Graph 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 67c106c1c72af4279a7b1d16bd812f96e0345eafc79d9dd06d7a3b4bd5d99756
[INFO] running `"docker" "start" "-a" "67c106c1c72af4279a7b1d16bd812f96e0345eafc79d9dd06d7a3b4bd5d99756"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.2
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling petgraph v0.5.0
[INFO] [stderr]    Compiling dialogue_graph v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 52.70s
[INFO] running `"docker" "inspect" "67c106c1c72af4279a7b1d16bd812f96e0345eafc79d9dd06d7a3b4bd5d99756"`
[INFO] running `"docker" "rm" "-f" "67c106c1c72af4279a7b1d16bd812f96e0345eafc79d9dd06d7a3b4bd5d99756"`
[INFO] [stdout] 67c106c1c72af4279a7b1d16bd812f96e0345eafc79d9dd06d7a3b4bd5d99756
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 49f8cc2b049589aab8e6c52641c88c0e6fb7814fba8536d9d99e517d757167c9
[INFO] running `"docker" "start" "-a" "49f8cc2b049589aab8e6c52641c88c0e6fb7814fba8536d9d99e517d757167c9"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro-hack v0.5.11
[INFO] [stderr]    Compiling serde_test v1.0.104
[INFO] [stderr]    Compiling serde_closure_derive v0.2.10
[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_closure_derive-0.2.10/src/lib.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | #![feature(proc_macro_diagnostic)]
[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_closure_derive`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "49f8cc2b049589aab8e6c52641c88c0e6fb7814fba8536d9d99e517d757167c9"`
[INFO] running `"docker" "rm" "-f" "49f8cc2b049589aab8e6c52641c88c0e6fb7814fba8536d9d99e517d757167c9"`
[INFO] [stdout] 49f8cc2b049589aab8e6c52641c88c0e6fb7814fba8536d9d99e517d757167c9