[INFO] cloning repository https://github.com/ctsrc/kvr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ctsrc/kvr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fctsrc%2Fkvr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fctsrc%2Fkvr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 58909bc093dca8a639c5c394d424fd29e1881d70
[INFO] testing ctsrc/kvr 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%2Fctsrc%2Fkvr" "/workspace/builds/worker-78/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-78/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ctsrc/kvr 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/ctsrc/kvr
[INFO] finished tweaking git repo https://github.com/ctsrc/kvr
[INFO] tweaked toml for git repo https://github.com/ctsrc/kvr written to /workspace/builds/worker-78/source/Cargo.toml
[INFO] crate git repo https://github.com/ctsrc/kvr 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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] b0eb54dd144c9eebd359657074eea1a94b21206eb65f0758503335dc5e8d6863
[INFO] running `Command { std: "docker" "start" "-a" "b0eb54dd144c9eebd359657074eea1a94b21206eb65f0758503335dc5e8d6863", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0eb54dd144c9eebd359657074eea1a94b21206eb65f0758503335dc5e8d6863", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0eb54dd144c9eebd359657074eea1a94b21206eb65f0758503335dc5e8d6863", kill_on_drop: false }`
[INFO] [stdout] b0eb54dd144c9eebd359657074eea1a94b21206eb65f0758503335dc5e8d6863
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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] 348f3a28d482f272ac67ed661052523a603c918194f8eaacf9318f569d3da36b
[INFO] running `Command { std: "docker" "start" "-a" "348f3a28d482f272ac67ed661052523a603c918194f8eaacf9318f569d3da36b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.97
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.6
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling once_cell v1.8.0
[INFO] [stderr]    Compiling bytes v1.0.1
[INFO] [stderr]    Compiling instant v0.1.9
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling lock_api v0.4.4
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling tokio v1.7.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling parking_lot_core v0.8.3
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling signal-hook-registry v1.4.0
[INFO] [stderr]    Compiling mio v0.7.13
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling parking_lot v0.11.1
[INFO] [stderr]    Compiling chrono v0.4.19
[INFO] [stderr]    Compiling tokio-macros v1.2.0
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling ulid v0.4.1
[INFO] [stderr]    Compiling kvr v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `prev_rev`
[INFO] [stdout]   --> src/data.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub(crate) prev_rev: Option<Revision>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]   --> src/data.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub(crate) value: V,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `historical_entries`
[INFO] [stdout]   --> src/lib.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     historical_entries: BTreeMap<KeyAtRevision<K>, ValueWithPrevRevRef<V>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/bin/kvr.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let x = KeyValueRevision::<ExampleKey, u32>::try_init("example.db", true)
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 20s
[INFO] running `Command { std: "docker" "inspect" "348f3a28d482f272ac67ed661052523a603c918194f8eaacf9318f569d3da36b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "348f3a28d482f272ac67ed661052523a603c918194f8eaacf9318f569d3da36b", kill_on_drop: false }`
[INFO] [stdout] 348f3a28d482f272ac67ed661052523a603c918194f8eaacf9318f569d3da36b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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] 3fb5ff1277bc057dad9a43ae8b9a3efc4c112a1f4d0db3d5bdcb4240167c10d5
[INFO] running `Command { std: "docker" "start" "-a" "3fb5ff1277bc057dad9a43ae8b9a3efc4c112a1f4d0db3d5bdcb4240167c10d5", kill_on_drop: false }`
[INFO] [stderr]    Compiling kvr v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `prev_rev`
[INFO] [stdout]   --> src/data.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub(crate) prev_rev: Option<Revision>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]   --> src/data.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub(crate) value: V,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `historical_entries`
[INFO] [stdout]   --> src/lib.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     historical_entries: BTreeMap<KeyAtRevision<K>, ValueWithPrevRevRef<V>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/bin/kvr.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let x = KeyValueRevision::<ExampleKey, u32>::try_init("example.db", true)
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `prev_rev`
[INFO] [stdout]   --> src/data.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub(crate) prev_rev: Option<Revision>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]   --> src/data.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     pub(crate) value: V,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `historical_entries`
[INFO] [stdout]   --> src/lib.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     historical_entries: BTreeMap<KeyAtRevision<K>, ValueWithPrevRevRef<V>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "3fb5ff1277bc057dad9a43ae8b9a3efc4c112a1f4d0db3d5bdcb4240167c10d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fb5ff1277bc057dad9a43ae8b9a3efc4c112a1f4d0db3d5bdcb4240167c10d5", kill_on_drop: false }`
[INFO] [stdout] 3fb5ff1277bc057dad9a43ae8b9a3efc4c112a1f4d0db3d5bdcb4240167c10d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-78/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] c68d13e7294e7624a174a9bb4eff9480d58d94f61746af252ad19040473ba50f
[INFO] running `Command { std: "docker" "start" "-a" "c68d13e7294e7624a174a9bb4eff9480d58d94f61746af252ad19040473ba50f", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `prev_rev`
[INFO] [stderr]   --> src/data.rs:37:5
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub(crate) prev_rev: Option<Revision>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `value`
[INFO] [stderr]   --> src/data.rs:38:5
[INFO] [stderr]    |
[INFO] [stderr] 38 |     pub(crate) value: V,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `historical_entries`
[INFO] [stderr]   --> src/lib.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 |     historical_entries: BTreeMap<KeyAtRevision<K>, ValueWithPrevRevRef<V>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `kvr` (lib) generated 3 warnings
[INFO] [stderr] warning: `kvr` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr] warning: unused variable: `x`
[INFO] [stderr]   --> src/bin/kvr.rs:33:9
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let x = KeyValueRevision::<ExampleKey, u32>::try_init("example.db", true)
[INFO] [stderr]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `kvr` (bin "kvr" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kvr-67331da136ed2415)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/kvr-3d1590d7506f949e)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests kvr
[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] [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] [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" "c68d13e7294e7624a174a9bb4eff9480d58d94f61746af252ad19040473ba50f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c68d13e7294e7624a174a9bb4eff9480d58d94f61746af252ad19040473ba50f", kill_on_drop: false }`
[INFO] [stdout] c68d13e7294e7624a174a9bb4eff9480d58d94f61746af252ad19040473ba50f