[INFO] updating cached repository https://github.com/matteocam/pay-to-sudoku-attack
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cfc072fcdc17e10916185308edbdd232be808ad4
[INFO] checking matteocam/pay-to-sudoku-attack against beta-2019-10-27 for pr-65897
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmatteocam%2Fpay-to-sudoku-attack" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/matteocam/pay-to-sudoku-attack on toolchain beta-2019-10-27
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/matteocam/pay-to-sudoku-attack
[INFO] finished tweaking git repo https://github.com/matteocam/pay-to-sudoku-attack
[INFO] tweaked toml for git repo https://github.com/matteocam/pay-to-sudoku-attack written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/matteocam/pay-to-sudoku-attack already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2019-10-27" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=allow" "-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" "+beta-2019-10-27" "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] b1d5d4d6106f0c732d4921e1fa649b39eb8bef647211b5f093ee0caf5e67d616
[INFO] running `"docker" "start" "-a" "b1d5d4d6106f0c732d4921e1fa649b39eb8bef647211b5f093ee0caf5e67d616"`
[INFO] [stderr]     Checking rustc-serialize v0.3.23
[INFO] [stderr]     Checking language-tags v0.0.7
[INFO] [stderr]     Checking thread-scoped v1.0.1
[INFO] [stderr]     Checking hex v0.1.0
[INFO] [stderr]     Checking fixedbitset v0.1.6
[INFO] [stderr]     Checking whiteread v0.2.0
[INFO] [stderr]     Checking time v0.1.36
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]     Checking num-integer v0.1.34
[INFO] [stderr]    Compiling bzip2-sys v0.1.5
[INFO] [stderr]    Compiling miniz-sys v0.1.9
[INFO] [stderr]     Checking hpack v0.2.0
[INFO] [stderr]    Compiling rust-crypto v0.2.36
[INFO] [stderr]     Checking num-iter v0.1.33
[INFO] [stderr]     Checking solicit v0.4.4
[INFO] [stderr]     Checking flate2 v0.2.19
[INFO] [stderr]     Checking bzip2 v0.2.4
[INFO] [stderr]     Checking num-bigint v0.1.37
[INFO] [stderr]     Checking num-complex v0.1.37
[INFO] [stderr]     Checking uuid v0.1.18
[INFO] [stderr]     Checking url v0.2.38
[INFO] [stderr]     Checking num-rational v0.1.36
[INFO] [stderr]     Checking cookie v0.1.21
[INFO] [stderr]     Checking num v0.1.37
[INFO] [stderr]     Checking serde v0.6.15
[INFO] [stderr]     Checking mime v0.1.3
[INFO] [stderr]     Checking strason v0.3.4
[INFO] [stderr]     Checking bincode v0.4.1
[INFO] [stderr]     Checking hyper v0.6.16
[INFO] [stderr]     Checking jsonrpc v0.7.6
[INFO] [stderr]     Checking pay-to-sudoku v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.53s
[INFO] running `"docker" "inspect" "b1d5d4d6106f0c732d4921e1fa649b39eb8bef647211b5f093ee0caf5e67d616"`
[INFO] running `"docker" "rm" "-f" "b1d5d4d6106f0c732d4921e1fa649b39eb8bef647211b5f093ee0caf5e67d616"`
[INFO] [stdout] b1d5d4d6106f0c732d4921e1fa649b39eb8bef647211b5f093ee0caf5e67d616