[INFO] fetching crate quick_maths 0.2.1...
[INFO] checking quick_maths-0.2.1 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate quick_maths 0.2.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate quick_maths 0.2.1 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate quick_maths 0.2.1
[INFO] finished tweaking crates.io crate quick_maths 0.2.1
[INFO] tweaked toml for crates.io crate quick_maths 0.2.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4702fb6bfb37aa7a2d6d4c27582cacde74309429a589160c9572f9db9082ef92
[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" "4702fb6bfb37aa7a2d6d4c27582cacde74309429a589160c9572f9db9082ef92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4702fb6bfb37aa7a2d6d4c27582cacde74309429a589160c9572f9db9082ef92", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4702fb6bfb37aa7a2d6d4c27582cacde74309429a589160c9572f9db9082ef92", kill_on_drop: false }`
[INFO] [stdout] 4702fb6bfb37aa7a2d6d4c27582cacde74309429a589160c9572f9db9082ef92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9610252ba9ca165af68ff5952cae719d2f81c9a9701f1ec30876e0139122de7c
[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" "9610252ba9ca165af68ff5952cae719d2f81c9a9701f1ec30876e0139122de7c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking quick_maths v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/dynamics/tensor.rs:165:7
[INFO] [stdout]     |
[INFO] [stdout] 165 |   let v = Vec3::of(3.0);
[INFO] [stdout]     |       ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/dynamics/tensor.rs:167:7
[INFO] [stdout]     |
[INFO] [stdout] 167 |   let t = m.dyn_tensor();
[INFO] [stdout]     |       ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.33s
[INFO] running `Command { std: "docker" "inspect" "9610252ba9ca165af68ff5952cae719d2f81c9a9701f1ec30876e0139122de7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9610252ba9ca165af68ff5952cae719d2f81c9a9701f1ec30876e0139122de7c", kill_on_drop: false }`
[INFO] [stdout] 9610252ba9ca165af68ff5952cae719d2f81c9a9701f1ec30876e0139122de7c