[INFO] fetching crate ising_lib 0.3.0...
[INFO] checking ising_lib-0.3.0 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate ising_lib 0.3.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate ising_lib 0.3.0 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-9/source/Cargo.toml
[INFO] crate crates.io crate ising_lib 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_os v0.2.1
[INFO] [stderr]   Downloaded pbr v1.0.1
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 043358cc7721d23b5b2d2b766a8aa46213c4032473772c07ce9d8f138ff253d1
[INFO] running `Command { std: "docker" "start" "-a" "043358cc7721d23b5b2d2b766a8aa46213c4032473772c07ce9d8f138ff253d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "043358cc7721d23b5b2d2b766a8aa46213c4032473772c07ce9d8f138ff253d1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "043358cc7721d23b5b2d2b766a8aa46213c4032473772c07ce9d8f138ff253d1", kill_on_drop: false }`
[INFO] [stdout] 043358cc7721d23b5b2d2b766a8aa46213c4032473772c07ce9d8f138ff253d1
[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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7fc1b32511c4ef603badf93adaa20946a79cec195a46a30fb7fda93f03e425b3
[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" "7fc1b32511c4ef603badf93adaa20946a79cec195a46a30fb7fda93f03e425b3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]     Checking cfg-if v0.1.9
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling getrandom v0.1.11
[INFO] [stderr]    Compiling arrayvec v0.4.11
[INFO] [stderr]     Checking either v1.5.2
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling proc-macro2 v1.0.1
[INFO] [stderr]    Compiling ryu v1.0.0
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]     Checking scopeguard v1.0.0
[INFO] [stderr]    Compiling rayon-core v1.5.0
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling bitflags v1.1.0
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking ppv-lite86 v0.2.5
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking same-file v1.0.5
[INFO] [stderr]     Checking cast v0.2.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking crossbeam-utils v0.6.6
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking walkdir v2.2.9
[INFO] [stderr]     Checking pretty_assertions v0.6.1
[INFO] [stderr]     Checking c2-chacha v0.2.2
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking crossbeam-queue v0.1.2
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling memoffset v0.5.1
[INFO] [stderr]     Checking memchr v2.2.1
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking criterion-plot v0.4.0
[INFO] [stderr]     Checking rand_core v0.5.0
[INFO] [stderr]     Checking crossbeam-epoch v0.7.2
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand_pcg v0.2.0
[INFO] [stderr]     Checking rand_xoshiro v0.3.1
[INFO] [stderr]     Checking rand_os v0.2.1
[INFO] [stderr]     Checking csv-core v0.1.6
[INFO] [stderr]     Checking pbr v1.0.1
[INFO] [stderr]     Checking rand v0.7.0
[INFO] [stderr]     Checking crossbeam-deque v0.6.3
[INFO] [stderr]     Checking rayon v1.1.0
[INFO] [stderr]     Checking chrono v0.4.7
[INFO] [stderr]     Checking ising_lib v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde_json v1.0.40
[INFO] [stderr]     Checking bstr v0.2.7
[INFO] [stderr]     Checking csv v1.1.1
[INFO] [stderr]     Checking tinytemplate v1.0.2
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]     Checking criterion v0.3.0
[INFO] [stdout] warning: unused variable: `probability`
[INFO] [stdout]   --> benches/lattice.rs:16:17
[INFO] [stdout]    |
[INFO] [stdout] 16 |             let probability = calc_flip_probability(E_diff, 1.0);
[INFO] [stdout]    |                 ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_probability`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `E`
[INFO] [stdout]   --> benches/lattice.rs:26:17
[INFO] [stdout]    |
[INFO] [stdout] 26 |             let E = lattice.measure_E();
[INFO] [stdout]    |                 ^ help: if this is intentional, prefix it with an underscore: `_E`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 14s
[INFO] running `Command { std: "docker" "inspect" "7fc1b32511c4ef603badf93adaa20946a79cec195a46a30fb7fda93f03e425b3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fc1b32511c4ef603badf93adaa20946a79cec195a46a30fb7fda93f03e425b3", kill_on_drop: false }`
[INFO] [stdout] 7fc1b32511c4ef603badf93adaa20946a79cec195a46a30fb7fda93f03e425b3