[INFO] cloning repository https://github.com/u32i64/b0x
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/u32i64/b0x" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fu32i64%2Fb0x", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fu32i64%2Fb0x'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0aade5025fb5ec9e870c08c80512da4db6121b8b
[INFO] checking u32i64/b0x against master#31ee872db5aae4750e3da1ca4ed1523c4356947f for pr-78461
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fu32i64%2Fb0x" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/u32i64/b0x on toolchain 31ee872db5aae4750e3da1ca4ed1523c4356947f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/u32i64/b0x
[INFO] finished tweaking git repo https://github.com/u32i64/b0x
[INFO] tweaked toml for git repo https://github.com/u32i64/b0x written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/u32i64/b0x already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42ee9e9cb3f16071334351a49378d98461645eac4f8a217ca94c1c0bb9b5bb91
[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" "42ee9e9cb3f16071334351a49378d98461645eac4f8a217ca94c1c0bb9b5bb91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42ee9e9cb3f16071334351a49378d98461645eac4f8a217ca94c1c0bb9b5bb91", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42ee9e9cb3f16071334351a49378d98461645eac4f8a217ca94c1c0bb9b5bb91", kill_on_drop: false }`
[INFO] [stdout] 42ee9e9cb3f16071334351a49378d98461645eac4f8a217ca94c1c0bb9b5bb91
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+31ee872db5aae4750e3da1ca4ed1523c4356947f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0770300a2fc8a6ab55048b6185139fde6d56043cdd39b46ccb2df12130b7fafe
[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" "0770300a2fc8a6ab55048b6185139fde6d56043cdd39b46ccb2df12130b7fafe", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling cgmath v0.16.1
[INFO] [stderr]    Compiling winapi v0.3.5
[INFO] [stderr]     Checking hamming v0.1.3
[INFO] [stderr]     Checking smallvec v0.6.10
[INFO] [stderr]     Checking rgb v0.8.13
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking primal-estimate v0.2.1
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking unicode-segmentation v1.3.0
[INFO] [stderr]     Checking english-numbers v0.3.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking term_size v1.0.0-beta1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking primal-bit v0.2.4
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking primal-sieve v0.2.9
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking primal-check v0.2.3
[INFO] [stderr]     Checking primal v0.2.3
[INFO] [stderr]     Checking winconsole v0.10.0
[INFO] [stderr]     Checking colored v1.8.0
[INFO] [stderr]     Checking b0x v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.33s
[INFO] running `Command { std: "docker" "inspect" "0770300a2fc8a6ab55048b6185139fde6d56043cdd39b46ccb2df12130b7fafe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0770300a2fc8a6ab55048b6185139fde6d56043cdd39b46ccb2df12130b7fafe", kill_on_drop: false }`
[INFO] [stdout] 0770300a2fc8a6ab55048b6185139fde6d56043cdd39b46ccb2df12130b7fafe