[INFO] crate ising_lib 0.3.0 is already in cache
[INFO] checking ising_lib-0.3.0 against master#6250d56355d72264ece721e8d0dc95b16a6824b1 for pr-68350
[INFO] extracting crate ising_lib 0.3.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate ising_lib 0.3.0 on toolchain 6250d56355d72264ece721e8d0dc95b16a6824b1
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate ising_lib 0.3.0
[INFO] finished tweaking crates.io crate ising_lib 0.3.0
[INFO] tweaked toml for crates.io crate ising_lib 0.3.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate ising_lib 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+6250d56355d72264ece721e8d0dc95b16a6824b1" "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] 7242002eb32910b5a2222e29c0c1c6344c822afc3d6c39ac362e0ba97ab5f57d
[INFO] running `"docker" "start" "-a" "7242002eb32910b5a2222e29c0c1c6344c822afc3d6c39ac362e0ba97ab5f57d"`
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.1
[INFO] [stderr]     Checking criterion-plot v0.4.0
[INFO] [stderr]     Checking memchr v2.2.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking rand_pcg v0.2.0
[INFO] [stderr]     Checking rand_os v0.2.1
[INFO] [stderr]     Checking rand_xoshiro v0.3.1
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking tinytemplate v1.0.2
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking bstr v0.2.7
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]     Checking rayon-core v1.5.0
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking ising_lib v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]     Checking criterion v0.3.0
[INFO] [stderr] warning: unused variable: `probability`
[INFO] [stderr]   --> benches/lattice.rs:16:17
[INFO] [stderr]    |
[INFO] [stderr] 16 |             let probability = calc_flip_probability(E_diff, 1.0);
[INFO] [stderr]    |                 ^^^^^^^^^^^ help: consider prefixing with an underscore: `_probability`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `E`
[INFO] [stderr]   --> benches/lattice.rs:26:17
[INFO] [stderr]    |
[INFO] [stderr] 26 |             let E = lattice.measure_E();
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_E`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 00s
[INFO] running `"docker" "inspect" "7242002eb32910b5a2222e29c0c1c6344c822afc3d6c39ac362e0ba97ab5f57d"`
[INFO] running `"docker" "rm" "-f" "7242002eb32910b5a2222e29c0c1c6344c822afc3d6c39ac362e0ba97ab5f57d"`
[INFO] [stdout] 7242002eb32910b5a2222e29c0c1c6344c822afc3d6c39ac362e0ba97ab5f57d