[INFO] updating cached repository https://github.com/Hirevo/hashcode-2019
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3ac0b5d621b4e3d130a2e6a2ce35bcc1eddb54fe
[INFO] checking Hirevo/hashcode-2019 against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHirevo%2Fhashcode-2019" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Hirevo/hashcode-2019 on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Hirevo/hashcode-2019
[INFO] finished tweaking git repo https://github.com/Hirevo/hashcode-2019
[INFO] tweaked toml for git repo https://github.com/Hirevo/hashcode-2019 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/Hirevo/hashcode-2019 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "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] f8719fa2a5b2e64882766cffe325562ae2277b2f2fca0b007666ad7b42dcd3b6
[INFO] running `Command { std: "docker" "start" "-a" "f8719fa2a5b2e64882766cffe325562ae2277b2f2fca0b007666ad7b42dcd3b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f8719fa2a5b2e64882766cffe325562ae2277b2f2fca0b007666ad7b42dcd3b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8719fa2a5b2e64882766cffe325562ae2277b2f2fca0b007666ad7b42dcd3b6", kill_on_drop: false }`
[INFO] [stdout] f8719fa2a5b2e64882766cffe325562ae2277b2f2fca0b007666ad7b42dcd3b6
[INFO] running `Command { std: "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@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8380aee2b592520f70df90eb9dd1e9a44dc12a4f3920126d572072a7fec215e8
[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" "8380aee2b592520f70df90eb9dd1e9a44dc12a4f3920126d572072a7fec215e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling libc v0.2.49
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]    Compiling serde v1.0.88
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking either v1.5.1
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.6.5
[INFO] [stderr]     Checking itertools v0.8.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.3
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_os v0.1.2
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]     Checking regex v1.1.2
[INFO] [stderr]    Compiling serde_derive v1.0.88
[INFO] [stderr]     Checking hash-code v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.17s
[INFO] running `Command { std: "docker" "inspect" "8380aee2b592520f70df90eb9dd1e9a44dc12a4f3920126d572072a7fec215e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8380aee2b592520f70df90eb9dd1e9a44dc12a4f3920126d572072a7fec215e8", kill_on_drop: false }`
[INFO] [stdout] 8380aee2b592520f70df90eb9dd1e9a44dc12a4f3920126d572072a7fec215e8