[INFO] crate timegate 0.1.0 is already in cache
[INFO] testing timegate-0.1.0 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate timegate 0.1.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate timegate 0.1.0 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "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-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 70d230cf766ca379c7355f82b20e85bc68104774fd5170912948117a12dee4ca
[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" "70d230cf766ca379c7355f82b20e85bc68104774fd5170912948117a12dee4ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "70d230cf766ca379c7355f82b20e85bc68104774fd5170912948117a12dee4ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70d230cf766ca379c7355f82b20e85bc68104774fd5170912948117a12dee4ca", kill_on_drop: false }`
[INFO] [stdout] 70d230cf766ca379c7355f82b20e85bc68104774fd5170912948117a12dee4ca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0fc22210c4a97b8c0cd4f55fa6892f462c05fae9073642bfa07e247155e7124
[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" "b0fc22210c4a97b8c0cd4f55fa6892f462c05fae9073642bfa07e247155e7124", kill_on_drop: false }`
[INFO] [stderr]    Compiling sled v0.31.0
[INFO] [stderr]    Compiling 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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.67s
[INFO] running `Command { std: "docker" "inspect" "b0fc22210c4a97b8c0cd4f55fa6892f462c05fae9073642bfa07e247155e7124", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0fc22210c4a97b8c0cd4f55fa6892f462c05fae9073642bfa07e247155e7124", kill_on_drop: false }`
[INFO] [stdout] b0fc22210c4a97b8c0cd4f55fa6892f462c05fae9073642bfa07e247155e7124
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ac8dc9c0719f40d98de588a0bb74b9f393fe7bc563f682c42ef848220928539
[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" "2ac8dc9c0719f40d98de588a0bb74b9f393fe7bc563f682c42ef848220928539", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling 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 test [unoptimized + debuginfo] target(s) in 1.16s
[INFO] running `Command { std: "docker" "inspect" "2ac8dc9c0719f40d98de588a0bb74b9f393fe7bc563f682c42ef848220928539", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ac8dc9c0719f40d98de588a0bb74b9f393fe7bc563f682c42ef848220928539", kill_on_drop: false }`
[INFO] [stdout] 2ac8dc9c0719f40d98de588a0bb74b9f393fe7bc563f682c42ef848220928539
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a5743396e6f0acf6146794e82054461a6a9b9e769fbe0d3f6b3ac2afeb7ae58d
[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" "a5743396e6f0acf6146794e82054461a6a9b9e769fbe0d3f6b3ac2afeb7ae58d", kill_on_drop: false }`
[INFO] [stderr] warning: field is never read: `snapshots`
[INFO] [stderr]   --> src/gate/sled.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     snapshots: HashMap<Url, HashSet<u64>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `select`
[INFO] [stderr]   --> src/gate/sled.rs:54:8
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn select(&self, _: u64) -> u64 {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `base_url`
[INFO] [stderr]  --> src/map/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     base_url: Url,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `snapshots`
[INFO] [stderr]  --> src/map/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     snapshots: HashSet<u64>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `base_url`
[INFO] [stderr]  --> src/memento.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     base_url: &'a Url,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `snapshot`
[INFO] [stderr]  --> src/memento.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     snapshot: Snapshot<'a>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `prev`
[INFO] [stderr]  --> src/memento.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     prev: Option<Snapshot<'a>>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `next`
[INFO] [stderr]  --> src/memento.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     next: Option<Snapshot<'a>>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `base_url`
[INFO] [stderr]  --> src/snapshot.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     base_url: &'a Url,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `instant`
[INFO] [stderr]  --> src/snapshot.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     instant: u64,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `snapshots`
[INFO] [stderr]   --> src/gate/sled.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 |     snapshots: HashMap<Url, HashSet<u64>>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `select`
[INFO] [stderr]   --> src/gate/sled.rs:54:8
[INFO] [stderr]    |
[INFO] [stderr] 54 |     fn select(&self, _: u64) -> u64 {
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `base_url`
[INFO] [stderr]  --> src/map/mod.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     base_url: Url,
[INFO] [stderr]   |     ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `snapshots`
[INFO] [stderr]  --> src/map/mod.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     snapshots: HashSet<u64>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `base_url`
[INFO] [stderr]  --> src/memento.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     base_url: &'a Url,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `snapshot`
[INFO] [stderr]  --> src/memento.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     snapshot: Snapshot<'a>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `prev`
[INFO] [stderr]  --> src/memento.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     prev: Option<Snapshot<'a>>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `next`
[INFO] [stderr]  --> src/memento.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     next: Option<Snapshot<'a>>,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `base_url`
[INFO] [stderr]  --> src/snapshot.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     base_url: &'a Url,
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `instant`
[INFO] [stderr]  --> src/snapshot.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 |     instant: u64,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 10 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/timegate-2b1c0f96b7c66803
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests timegate
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a5743396e6f0acf6146794e82054461a6a9b9e769fbe0d3f6b3ac2afeb7ae58d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a5743396e6f0acf6146794e82054461a6a9b9e769fbe0d3f6b3ac2afeb7ae58d", kill_on_drop: false }`
[INFO] [stdout] a5743396e6f0acf6146794e82054461a6a9b9e769fbe0d3f6b3ac2afeb7ae58d