[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] testing tangramxyz/buffalo against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftangramxyz%2Fbuffalo" "/workspace/builds/worker-22/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-22/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tangramxyz/buffalo on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-22/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" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e9d82a3bcea568ea2af43493b1946aa38b956de972d5d7b0dabd4b6df231756f
[INFO] running `Command { std: "docker" "start" "-a" "e9d82a3bcea568ea2af43493b1946aa38b956de972d5d7b0dabd4b6df231756f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e9d82a3bcea568ea2af43493b1946aa38b956de972d5d7b0dabd4b6df231756f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9d82a3bcea568ea2af43493b1946aa38b956de972d5d7b0dabd4b6df231756f", kill_on_drop: false }`
[INFO] [stdout] e9d82a3bcea568ea2af43493b1946aa38b956de972d5d7b0dabd4b6df231756f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5bd0859dbcfe1617039dfc3969443f9f8d5070428db79d296d242fc69a604b11
[INFO] running `Command { std: "docker" "start" "-a" "5bd0859dbcfe1617039dfc3969443f9f8d5070428db79d296d242fc69a604b11", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.0
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.4.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling num-complex v0.4.0
[INFO] [stderr]    Compiling num v0.4.0
[INFO] [stderr]    Compiling buffalo_macro v0.1.0 (/opt/rustwide/workdir/macro)
[INFO] [stderr]    Compiling derive_deref v1.1.1
[INFO] [stderr]    Compiling buffalo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 46.17s
[INFO] running `Command { std: "docker" "inspect" "5bd0859dbcfe1617039dfc3969443f9f8d5070428db79d296d242fc69a604b11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5bd0859dbcfe1617039dfc3969443f9f8d5070428db79d296d242fc69a604b11", kill_on_drop: false }`
[INFO] [stdout] 5bd0859dbcfe1617039dfc3969443f9f8d5070428db79d296d242fc69a604b11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 747daa53f6fc56c01376b51b3a08db27abac6d4d0dc54aec2ba786e6b7b868be
[INFO] running `Command { std: "docker" "start" "-a" "747daa53f6fc56c01376b51b3a08db27abac6d4d0dc54aec2ba786e6b7b868be", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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 test [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `Command { std: "docker" "inspect" "747daa53f6fc56c01376b51b3a08db27abac6d4d0dc54aec2ba786e6b7b868be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "747daa53f6fc56c01376b51b3a08db27abac6d4d0dc54aec2ba786e6b7b868be", kill_on_drop: false }`
[INFO] [stdout] 747daa53f6fc56c01376b51b3a08db27abac6d4d0dc54aec2ba786e6b7b868be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5065e90428952ff75f199f5191ded00e8c557dd8282f315019ba3e38b29cbcc2
[INFO] running `Command { std: "docker" "start" "-a" "5065e90428952ff75f199f5191ded00e8c557dd8282f315019ba3e38b29cbcc2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: field is never read: `contacts`
[INFO] [stderr]   --> lib.rs:54:3
[INFO] [stderr]    |
[INFO] [stderr] 54 |         pub contacts: Vec<Contact>,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `age`
[INFO] [stderr]   --> lib.rs:61:3
[INFO] [stderr]    |
[INFO] [stderr] 61 |         pub age: u16,
[INFO] [stderr]    |         ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `name`
[INFO] [stderr]   --> lib.rs:63:3
[INFO] [stderr]    |
[INFO] [stderr] 63 |         pub name: String,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `phone_numbers`
[INFO] [stderr]   --> lib.rs:65:3
[INFO] [stderr]    |
[INFO] [stderr] 65 |         pub phone_numbers: Option<Vec<PhoneNumber>>,
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `buffalo` (lib test) generated 4 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 46.87s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/buffalo-1ed348aa950e2417)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test::test_address_book ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests buffalo
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5065e90428952ff75f199f5191ded00e8c557dd8282f315019ba3e38b29cbcc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5065e90428952ff75f199f5191ded00e8c557dd8282f315019ba3e38b29cbcc2", kill_on_drop: false }`
[INFO] [stdout] 5065e90428952ff75f199f5191ded00e8c557dd8282f315019ba3e38b29cbcc2