[INFO] fetching crate timegate 0.1.0...
[INFO] checking timegate-0.1.0 against beta for pr-78714
[INFO] extracting crate timegate 0.1.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate timegate 0.1.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate timegate 0.1.0
[INFO] finished tweaking crates.io crate timegate 0.1.0
[INFO] tweaked toml for crates.io crate timegate 0.1.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6f00045cf8f095eb8b2a78800fb0c0616c1155c1cdc708255fb3251818991864
[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" "6f00045cf8f095eb8b2a78800fb0c0616c1155c1cdc708255fb3251818991864", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6f00045cf8f095eb8b2a78800fb0c0616c1155c1cdc708255fb3251818991864", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f00045cf8f095eb8b2a78800fb0c0616c1155c1cdc708255fb3251818991864", kill_on_drop: false }`
[INFO] [stdout] 6f00045cf8f095eb8b2a78800fb0c0616c1155c1cdc708255fb3251818991864
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "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] 46637d6204f505a12bf081e709ccc13a1b793f40fd688794e577379b4f52fe9c
[INFO] running `Command { std: "docker" "start" "-a" "46637d6204f505a12bf081e709ccc13a1b793f40fd688794e577379b4f52fe9c", kill_on_drop: false }`
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking sled v0.31.0
[INFO] [stderr]     Checking timegate v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `snapshots`
[INFO] [stdout]   --> src/gate/sled.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     snapshots: HashMap<Url, HashSet<u64>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `select`
[INFO] [stdout]   --> src/gate/sled.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn select(&self, _: u64) -> u64 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `base_url`
[INFO] [stdout]  --> src/map/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     base_url: Url,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `snapshots`
[INFO] [stdout]  --> src/map/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     snapshots: HashSet<u64>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `base_url`
[INFO] [stdout]  --> src/memento.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     base_url: &'a Url,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `snapshot`
[INFO] [stdout]  --> src/memento.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     snapshot: Snapshot<'a>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `prev`
[INFO] [stdout]  --> src/memento.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     prev: Option<Snapshot<'a>>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `next`
[INFO] [stdout]  --> src/memento.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     next: Option<Snapshot<'a>>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `base_url`
[INFO] [stdout]  --> src/snapshot.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     base_url: &'a Url,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `instant`
[INFO] [stdout]  --> src/snapshot.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     instant: u64,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `snapshots`
[INFO] [stdout]   --> src/gate/sled.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     snapshots: HashMap<Url, HashSet<u64>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `select`
[INFO] [stdout]   --> src/gate/sled.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn select(&self, _: u64) -> u64 {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `base_url`
[INFO] [stdout]  --> src/map/mod.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     base_url: Url,
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `snapshots`
[INFO] [stdout]  --> src/map/mod.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     snapshots: HashSet<u64>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `base_url`
[INFO] [stdout]  --> src/memento.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     base_url: &'a Url,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `snapshot`
[INFO] [stdout]  --> src/memento.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     snapshot: Snapshot<'a>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `prev`
[INFO] [stdout]  --> src/memento.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     prev: Option<Snapshot<'a>>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `next`
[INFO] [stdout]  --> src/memento.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     next: Option<Snapshot<'a>>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `base_url`
[INFO] [stdout]  --> src/snapshot.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     base_url: &'a Url,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `instant`
[INFO] [stdout]  --> src/snapshot.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     instant: u64,
[INFO] [stdout]   |     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.25s
[INFO] running `Command { std: "docker" "inspect" "46637d6204f505a12bf081e709ccc13a1b793f40fd688794e577379b4f52fe9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "46637d6204f505a12bf081e709ccc13a1b793f40fd688794e577379b4f52fe9c", kill_on_drop: false }`
[INFO] [stdout] 46637d6204f505a12bf081e709ccc13a1b793f40fd688794e577379b4f52fe9c