[INFO] cloning repository https://github.com/Silviase/optimize
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Silviase/optimize" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSilviase%2Foptimize", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSilviase%2Foptimize'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e41808a36dd5e0fa7897df05a2b753abc2e4e4d2
[INFO] checking Silviase/optimize against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSilviase%2Foptimize" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Silviase/optimize on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Silviase/optimize
[INFO] finished tweaking git repo https://github.com/Silviase/optimize
[INFO] tweaked toml for git repo https://github.com/Silviase/optimize written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Silviase/optimize already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 072fc70d62b88fb0bf6cbbbc1ca69bc8e20c0812f4e0288cd020b9e77038eb4c
[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" "072fc70d62b88fb0bf6cbbbc1ca69bc8e20c0812f4e0288cd020b9e77038eb4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "072fc70d62b88fb0bf6cbbbc1ca69bc8e20c0812f4e0288cd020b9e77038eb4c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "072fc70d62b88fb0bf6cbbbc1ca69bc8e20c0812f4e0288cd020b9e77038eb4c", kill_on_drop: false }`
[INFO] [stdout] 072fc70d62b88fb0bf6cbbbc1ca69bc8e20c0812f4e0288cd020b9e77038eb4c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03e8c065fac5491bc8d534ff7356c8ba2cb401f3efa5b4fe17a9c069cab51ccc
[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" "03e8c065fac5491bc8d534ff7356c8ba2cb401f3efa5b4fe17a9c069cab51ccc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro-hack v0.5.18
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking generic-array v0.13.2
[INFO] [stderr]     Checking matrixmultiply v0.2.3
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking gnuplot v0.0.37
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]     Checking simba v0.2.0
[INFO] [stderr]     Checking ndarray v0.13.1
[INFO] [stderr]     Checking nalgebra v0.22.0
[INFO] [stderr]     Checking opt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.41s
[INFO] running `Command { std: "docker" "inspect" "03e8c065fac5491bc8d534ff7356c8ba2cb401f3efa5b4fe17a9c069cab51ccc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03e8c065fac5491bc8d534ff7356c8ba2cb401f3efa5b4fe17a9c069cab51ccc", kill_on_drop: false }`
[INFO] [stdout] 03e8c065fac5491bc8d534ff7356c8ba2cb401f3efa5b4fe17a9c069cab51ccc