[INFO] crate symbolics_core 0.1.5 is already in cache
[INFO] checking symbolics_core-0.1.5 against try#662bf71cc5bbfe44a109ab5b7205e12ec319754c for pr-67531
[INFO] extracting crate symbolics_core 0.1.5 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate symbolics_core 0.1.5 on toolchain 662bf71cc5bbfe44a109ab5b7205e12ec319754c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+662bf71cc5bbfe44a109ab5b7205e12ec319754c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate symbolics_core 0.1.5
[INFO] finished tweaking crates.io crate symbolics_core 0.1.5
[INFO] tweaked toml for crates.io crate symbolics_core 0.1.5 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+662bf71cc5bbfe44a109ab5b7205e12ec319754c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+662bf71cc5bbfe44a109ab5b7205e12ec319754c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=forbid" "-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" "+662bf71cc5bbfe44a109ab5b7205e12ec319754c" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 7e6a8f990619094620475c431b4ef3c525b81ec40e63e83e14f481c31a657b4c
[INFO] running `"docker" "start" "-a" "7e6a8f990619094620475c431b4ef3c525b81ec40e63e83e14f481c31a657b4c"`
[INFO] [stderr]     Checking symbolics_core v0.1.5 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]  --> tests/building.rs:9:117
[INFO] [stderr]   |
[INFO] [stderr] 9 |     "Add(Add(Mul(Symbol(\"a\"), Pow(Symbol(\"x\"), Num(2.0))), Mul(Symbol(\"b\"), Symbol(\"x\"))), Symbol(\"c\"))");;
[INFO] [stderr]   |                                                                                                                     ^ help: remove this semicolon
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(redundant_semicolon)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `"docker" "inspect" "7e6a8f990619094620475c431b4ef3c525b81ec40e63e83e14f481c31a657b4c"`
[INFO] running `"docker" "rm" "-f" "7e6a8f990619094620475c431b4ef3c525b81ec40e63e83e14f481c31a657b4c"`
[INFO] [stdout] 7e6a8f990619094620475c431b4ef3c525b81ec40e63e83e14f481c31a657b4c