[INFO] cloning repository https://github.com/jail-maker/check_ip
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jail-maker/check_ip" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjail-maker%2Fcheck_ip", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjail-maker%2Fcheck_ip'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 93449c8958bd8e4bf5330d9b9a8c8e2ee24d17f1
[INFO] testing jail-maker/check_ip against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjail-maker%2Fcheck_ip" "/workspace/builds/worker-91/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-91/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jail-maker/check_ip on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jail-maker/check_ip
[INFO] finished tweaking git repo https://github.com/jail-maker/check_ip
[INFO] tweaked toml for git repo https://github.com/jail-maker/check_ip written to /workspace/builds/worker-91/source/Cargo.toml
[INFO] crate git repo https://github.com/jail-maker/check_ip already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ipnetwork v0.12.6
[INFO] [stderr]   Downloaded textwrap v0.6.0
[INFO] [stderr]   Downloaded clap v2.25.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 841dcef8d2522a3ad32e2a8d7efb1edd5424e57b44fbd5211114f4650286125e
[INFO] running `Command { std: "docker" "start" "-a" "841dcef8d2522a3ad32e2a8d7efb1edd5424e57b44fbd5211114f4650286125e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "841dcef8d2522a3ad32e2a8d7efb1edd5424e57b44fbd5211114f4650286125e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "841dcef8d2522a3ad32e2a8d7efb1edd5424e57b44fbd5211114f4650286125e", kill_on_drop: false }`
[INFO] [stdout] 841dcef8d2522a3ad32e2a8d7efb1edd5424e57b44fbd5211114f4650286125e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-91/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ac84158ae4b57aed95266e519eb9f4f6caf4ae146ff2a5f3fb4d57dc9b22bb93
[INFO] running `Command { std: "docker" "start" "-a" "ac84158ae4b57aed95266e519eb9f4f6caf4ae146ff2a5f3fb4d57dc9b22bb93", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.26
[INFO] [stderr]    Compiling unicode-segmentation v1.1.0
[INFO] [stderr]    Compiling yaml-rust v0.3.5
[INFO] [stderr]    Compiling serde v1.0.10
[INFO] [stderr]    Compiling num-traits v0.1.39
[INFO] [stderr]    Compiling ipnetwork v0.12.6
[INFO] [stdout] error[E0636]: the feature `i128_type` has already been declared
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ipnetwork-0.12.6/src/lib.rs:7:47
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![cfg_attr(feature = "ipv6-methods", feature(i128_type))]
[INFO] [stdout]   |                                               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ipnetwork` due to 2 previous errors
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] For more information about this error, try `rustc --explain E0636`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "ac84158ae4b57aed95266e519eb9f4f6caf4ae146ff2a5f3fb4d57dc9b22bb93", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ac84158ae4b57aed95266e519eb9f4f6caf4ae146ff2a5f3fb4d57dc9b22bb93", kill_on_drop: false }`
[INFO] [stdout] ac84158ae4b57aed95266e519eb9f4f6caf4ae146ff2a5f3fb4d57dc9b22bb93