[INFO] cloning repository https://github.com/tangramxyz/buffalo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tangramxyz/buffalo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftangramxyz%2Fbuffalo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftangramxyz%2Fbuffalo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 47d7c7a90c9726dd2788ee5eb4f9b434b15ba672
[INFO] checking tangramxyz/buffalo against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftangramxyz%2Fbuffalo" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tangramxyz/buffalo on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tangramxyz/buffalo
[INFO] finished tweaking git repo https://github.com/tangramxyz/buffalo
[INFO] tweaked toml for git repo https://github.com/tangramxyz/buffalo written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/tangramxyz/buffalo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "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] 7c0118580ee72c8b6937b7176a5a67ceda521472450ba5f893507e8848ea61a8
[INFO] running `Command { std: "docker" "start" "-a" "7c0118580ee72c8b6937b7176a5a67ceda521472450ba5f893507e8848ea61a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7c0118580ee72c8b6937b7176a5a67ceda521472450ba5f893507e8848ea61a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c0118580ee72c8b6937b7176a5a67ceda521472450ba5f893507e8848ea61a8", kill_on_drop: false }`
[INFO] [stdout] 7c0118580ee72c8b6937b7176a5a67ceda521472450ba5f893507e8848ea61a8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 2eb4d2b7793b3bc999e369cd5e93a85658f4d4629261cf335f24be4b4c4c8b7e
[INFO] running `Command { std: "docker" "start" "-a" "2eb4d2b7793b3bc999e369cd5e93a85658f4d4629261cf335f24be4b4c4c8b7e", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling derive_deref v1.1.1
[INFO] [stderr]    Compiling buffalo_macro v0.1.0 (/opt/rustwide/workdir/macro)
[INFO] [stderr]     Checking buffalo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `contacts`
[INFO] [stdout]   --> lib.rs:54:3
[INFO] [stdout]    |
[INFO] [stdout] 54 |         pub contacts: Vec<Contact>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `age`
[INFO] [stdout]   --> lib.rs:61:3
[INFO] [stdout]    |
[INFO] [stdout] 61 |         pub age: u16,
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `name`
[INFO] [stdout]   --> lib.rs:63:3
[INFO] [stdout]    |
[INFO] [stdout] 63 |         pub name: String,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `phone_numbers`
[INFO] [stdout]   --> lib.rs:65:3
[INFO] [stdout]    |
[INFO] [stdout] 65 |         pub phone_numbers: Option<Vec<PhoneNumber>>,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.91s
[INFO] running `Command { std: "docker" "inspect" "2eb4d2b7793b3bc999e369cd5e93a85658f4d4629261cf335f24be4b4c4c8b7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2eb4d2b7793b3bc999e369cd5e93a85658f4d4629261cf335f24be4b4c4c8b7e", kill_on_drop: false }`
[INFO] [stdout] 2eb4d2b7793b3bc999e369cd5e93a85658f4d4629261cf335f24be4b4c4c8b7e