[INFO] cloning repository https://github.com/Riptawr/zoo_visitor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Riptawr/zoo_visitor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRiptawr%2Fzoo_visitor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRiptawr%2Fzoo_visitor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 86149d8276134d03b82f770c1ab15a84542d0fcd
[INFO] checking Riptawr/zoo_visitor against try#45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4 for pr-83744
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRiptawr%2Fzoo_visitor" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Riptawr/zoo_visitor on toolchain 45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Riptawr/zoo_visitor
[INFO] finished tweaking git repo https://github.com/Riptawr/zoo_visitor
[INFO] tweaked toml for git repo https://github.com/Riptawr/zoo_visitor written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Riptawr/zoo_visitor already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded zookeeper_derive v0.3.0
[INFO] [stderr]   Downloaded zookeeper v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "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] ea00a9113c6b892516bbc09ebf9d1162d63ed5c1cd1f92b7c01aafa7e8bd7015
[INFO] running `Command { std: "docker" "start" "-a" "ea00a9113c6b892516bbc09ebf9d1162d63ed5c1cd1f92b7c01aafa7e8bd7015", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ea00a9113c6b892516bbc09ebf9d1162d63ed5c1cd1f92b7c01aafa7e8bd7015", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea00a9113c6b892516bbc09ebf9d1162d63ed5c1cd1f92b7c01aafa7e8bd7015", kill_on_drop: false }`
[INFO] [stdout] ea00a9113c6b892516bbc09ebf9d1162d63ed5c1cd1f92b7c01aafa7e8bd7015
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+45d8b6e68beee1c9c1ce92ae258a7e02f8f13aa4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59f881f343a4170d3157ef31226f61fd8fe7b11ff8a78897059d04d94bc00d06
[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" "59f881f343a4170d3157ef31226f61fd8fe7b11ff8a78897059d04d94bc00d06", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]     Checking log v0.3.8
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking bitflags v0.4.0
[INFO] [stderr]     Checking lazy_static v0.2.9
[INFO] [stderr]     Checking slab v0.1.3
[INFO] [stderr]     Checking regex-syntax v0.4.1
[INFO] [stderr]     Checking bytes v0.3.0
[INFO] [stderr]     Checking snowflake v1.3.0
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking time v0.1.38
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]     Checking net2 v0.2.31
[INFO] [stderr]     Checking nix v0.5.1
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking thread_local v0.3.4
[INFO] [stderr]     Checking aho-corasick v0.6.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking miow v0.1.5
[INFO] [stderr]     Checking regex v0.2.2
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]     Checking mio v0.5.1
[INFO] [stderr]    Compiling zookeeper_derive v0.3.0
[INFO] [stderr]     Checking zookeeper v0.4.0
[INFO] [stderr]     Checking zoo_visitor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.39s
[INFO] running `Command { std: "docker" "inspect" "59f881f343a4170d3157ef31226f61fd8fe7b11ff8a78897059d04d94bc00d06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59f881f343a4170d3157ef31226f61fd8fe7b11ff8a78897059d04d94bc00d06", kill_on_drop: false }`
[INFO] [stdout] 59f881f343a4170d3157ef31226f61fd8fe7b11ff8a78897059d04d94bc00d06