[INFO] cloning repository https://github.com/TrolledWoods/field_ref
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TrolledWoods/field_ref" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTrolledWoods%2Ffield_ref", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTrolledWoods%2Ffield_ref'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f6300bae5ef5db86bfc089575331033420e9a523
[INFO] testing TrolledWoods/field_ref against beta-2021-09-08 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTrolledWoods%2Ffield_ref" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TrolledWoods/field_ref on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TrolledWoods/field_ref
[INFO] finished tweaking git repo https://github.com/TrolledWoods/field_ref
[INFO] tweaked toml for git repo https://github.com/TrolledWoods/field_ref written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/TrolledWoods/field_ref already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4559369640d7792d3bef017944a7ada64ebae4fdc4d31ab0708c9cc6069e81e0
[INFO] running `Command { std: "docker" "start" "-a" "4559369640d7792d3bef017944a7ada64ebae4fdc4d31ab0708c9cc6069e81e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4559369640d7792d3bef017944a7ada64ebae4fdc4d31ab0708c9cc6069e81e0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4559369640d7792d3bef017944a7ada64ebae4fdc4d31ab0708c9cc6069e81e0", kill_on_drop: false }`
[INFO] [stdout] 4559369640d7792d3bef017944a7ada64ebae4fdc4d31ab0708c9cc6069e81e0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe42d639778cc1f1c1779f66c51b0bd6c250bb2e8bfa385bd5aa841e33e1cf16
[INFO] running `Command { std: "docker" "start" "-a" "fe42d639778cc1f1c1779f66c51b0bd6c250bb2e8bfa385bd5aa841e33e1cf16", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling field_ref v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.67s
[INFO] running `Command { std: "docker" "inspect" "fe42d639778cc1f1c1779f66c51b0bd6c250bb2e8bfa385bd5aa841e33e1cf16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe42d639778cc1f1c1779f66c51b0bd6c250bb2e8bfa385bd5aa841e33e1cf16", kill_on_drop: false }`
[INFO] [stdout] fe42d639778cc1f1c1779f66c51b0bd6c250bb2e8bfa385bd5aa841e33e1cf16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71d694bee4a674f8fbda9e681d660b9a148ec70158928922cd739d607e1950f4
[INFO] running `Command { std: "docker" "start" "-a" "71d694bee4a674f8fbda9e681d660b9a148ec70158928922cd739d607e1950f4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling field_ref v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `d`
[INFO] [stdout]    --> src/lib.rs:251:9
[INFO] [stdout]     |
[INFO] [stdout] 251 |         d: u64,
[INFO] [stdout]     |         ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `Command { std: "docker" "inspect" "71d694bee4a674f8fbda9e681d660b9a148ec70158928922cd739d607e1950f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71d694bee4a674f8fbda9e681d660b9a148ec70158928922cd739d607e1950f4", kill_on_drop: false }`
[INFO] [stdout] 71d694bee4a674f8fbda9e681d660b9a148ec70158928922cd739d607e1950f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] db38cbb967612d4d3b18499e77323162b8e781bc2a642fa18bd6c0c8e5dfecde
[INFO] running `Command { std: "docker" "start" "-a" "db38cbb967612d4d3b18499e77323162b8e781bc2a642fa18bd6c0c8e5dfecde", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: field is never read: `d`
[INFO] [stderr]    --> src/lib.rs:251:9
[INFO] [stderr]     |
[INFO] [stderr] 251 |         d: u64,
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `field_ref` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.30s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/field_ref-8e400a28dfcb426f)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::create_fields ... ok
[INFO] [stdout] test tests::use_groups ... ok
[INFO] [stdout] test tests::create_fields_unaligned - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests field_ref
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test src/group.rs - group::group (line 46) ... ok
[INFO] [stdout] test src/group.rs - group::array_group (line 95) ... ok
[INFO] [stdout] test src/lib.rs - field (line 32) ... ok
[INFO] [stdout] test src/lib.rs - Field<On, To>::join (line 175) ... ok
[INFO] [stdout] test src/group.rs - group::field_group (line 11) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.98s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "db38cbb967612d4d3b18499e77323162b8e781bc2a642fa18bd6c0c8e5dfecde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db38cbb967612d4d3b18499e77323162b8e781bc2a642fa18bd6c0c8e5dfecde", kill_on_drop: false }`
[INFO] [stdout] db38cbb967612d4d3b18499e77323162b8e781bc2a642fa18bd6c0c8e5dfecde