[INFO] fetching crate mdb 0.0.1...
[INFO] checking mdb-0.0.1 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate mdb 0.0.1 into /workspace/builds/worker-89/source
[INFO] validating manifest of crates.io crate mdb 0.0.1 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mdb 0.0.1
[INFO] finished tweaking crates.io crate mdb 0.0.1
[INFO] tweaked toml for crates.io crate mdb 0.0.1 written to /workspace/builds/worker-89/source/Cargo.toml
[INFO] crate crates.io crate mdb 0.0.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "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-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/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-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5b308ccd9a7a1de929c4b5b22039fdcd9e4ac63a10ac38ae2a9bdf0103ec7478
[INFO] running `Command { std: "docker" "start" "-a" "5b308ccd9a7a1de929c4b5b22039fdcd9e4ac63a10ac38ae2a9bdf0103ec7478", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b308ccd9a7a1de929c4b5b22039fdcd9e4ac63a10ac38ae2a9bdf0103ec7478", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b308ccd9a7a1de929c4b5b22039fdcd9e4ac63a10ac38ae2a9bdf0103ec7478", kill_on_drop: false }`
[INFO] [stdout] 5b308ccd9a7a1de929c4b5b22039fdcd9e4ac63a10ac38ae2a9bdf0103ec7478
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-89/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-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2c91a7efea44f731ed283a4919a53b291cfc247c56ea471c21a6c3db39a67018
[INFO] running `Command { std: "docker" "start" "-a" "2c91a7efea44f731ed283a4919a53b291cfc247c56ea471c21a6c3db39a67018", 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling bytecheck v0.6.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling rend v0.3.2
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]    Compiling rkyv v0.7.17
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]     Checking plotters-backend v0.3.2
[INFO] [stderr]     Checking seahash v4.1.0
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking log v0.4.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking tinyvec v1.4.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking plotters-svg v0.3.1
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot_core v0.8.5
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking memmap2 v0.3.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]     Checking criterion-plot v0.4.4
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking env_logger v0.8.4
[INFO] [stderr]     Checking quickcheck v1.0.3
[INFO] [stderr]    Compiling ptr_meta_derive v0.1.4
[INFO] [stderr]    Compiling bytecheck_derive v0.6.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling rkyv_derive v0.7.17
[INFO] [stderr]    Compiling tokio-macros v1.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]     Checking ptr_meta v0.1.4
[INFO] [stderr]     Checking thiserror v1.0.29
[INFO] [stderr]     Checking criterion v0.3.5
[INFO] [stderr]     Checking mdb v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Archive`
[INFO] [stdout]  --> src/db.rs:7:47
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rkyv::{ser::serializers::AllocSerializer, Archive, Deserialize, Infallible, Serialize};
[INFO] [stdout]   |                                               ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Archive`
[INFO] [stdout]  --> src/db.rs:7:47
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rkyv::{ser::serializers::AllocSerializer, Archive, Deserialize, Infallible, Serialize};
[INFO] [stdout]   |                                               ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `depth`
[INFO] [stdout]    --> src/db.rs:117:28
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub async fn read_last(depth: u64) {}
[INFO] [stdout]     |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_depth`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `depth`
[INFO] [stdout]    --> src/db.rs:117:28
[INFO] [stdout]     |
[INFO] [stdout] 117 |     pub async fn read_last(depth: u64) {}
[INFO] [stdout]     |                            ^^^^^ help: if this is intentional, prefix it with an underscore: `_depth`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `path_builder`
[INFO] [stdout]   --> src/epoch.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     path_builder: PathBuilder,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `source`
[INFO] [stdout]   --> src/db.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     source: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `curr_epoch`
[INFO] [stdout]    --> src/db.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 152 |     curr_epoch: Option<Epoch<T>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stdout]   --> src/epoch.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub type FrameIndex<T: Tick> = Trie<u64, T>;
[INFO] [stdout]    |                        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(type_alias_bounds)]` on by default
[INFO] [stdout] help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stdout]    |
[INFO] [stdout] 11 - pub type FrameIndex<T: Tick> = Trie<u64, T>;
[INFO] [stdout] 11 + pub type FrameIndex<T> = Trie<u64, T>;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `path_builder`
[INFO] [stdout]   --> src/epoch.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     path_builder: PathBuilder,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `source`
[INFO] [stdout]   --> src/db.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     source: Option<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `curr_epoch`
[INFO] [stdout]    --> src/db.rs:152:5
[INFO] [stdout]     |
[INFO] [stdout] 152 |     curr_epoch: Option<Epoch<T>>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: bounds on generic parameters are not enforced in type aliases
[INFO] [stdout]   --> src/epoch.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub type FrameIndex<T: Tick> = Trie<u64, T>;
[INFO] [stdout]    |                        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(type_alias_bounds)]` on by default
[INFO] [stdout] help: the bound will not be checked when the type alias is used, and should be removed
[INFO] [stdout]    |
[INFO] [stdout] 11 - pub type FrameIndex<T: Tick> = Trie<u64, T>;
[INFO] [stdout] 11 + pub type FrameIndex<T> = Trie<u64, T>;
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 33.87s
[INFO] running `Command { std: "docker" "inspect" "2c91a7efea44f731ed283a4919a53b291cfc247c56ea471c21a6c3db39a67018", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2c91a7efea44f731ed283a4919a53b291cfc247c56ea471c21a6c3db39a67018", kill_on_drop: false }`
[INFO] [stdout] 2c91a7efea44f731ed283a4919a53b291cfc247c56ea471c21a6c3db39a67018
