[INFO] fetching crate zoea 0.0.9...
[INFO] checking zoea-0.0.9 against beta for pr-78714
[INFO] extracting crate zoea 0.0.9 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate zoea 0.0.9 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 zoea 0.0.9
[INFO] finished tweaking crates.io crate zoea 0.0.9
[INFO] tweaked toml for crates.io crate zoea 0.0.9 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] 88678f871136cd54e22b04cbc6a7526b8dd0165c7441e9c2841903822805cde1
[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" "88678f871136cd54e22b04cbc6a7526b8dd0165c7441e9c2841903822805cde1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88678f871136cd54e22b04cbc6a7526b8dd0165c7441e9c2841903822805cde1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88678f871136cd54e22b04cbc6a7526b8dd0165c7441e9c2841903822805cde1", kill_on_drop: false }`
[INFO] [stdout] 88678f871136cd54e22b04cbc6a7526b8dd0165c7441e9c2841903822805cde1
[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] [stdout] 7fd3d6b4860a4f336f114133752653c8d54f84a6701c49dc24458b53a4041921
[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" "7fd3d6b4860a4f336f114133752653c8d54f84a6701c49dc24458b53a4041921", kill_on_drop: false }`
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling curl v0.4.34
[INFO] [stderr]     Checking seahash v4.0.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling libz-sys v1.1.2
[INFO] [stderr]    Compiling curl-sys v0.4.38+curl-7.73.0
[INFO] [stderr]    Compiling sqlite3-src v0.2.12
[INFO] [stderr]     Checking porter-stemmer v0.1.2
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking rust-stemmers v1.2.0
[INFO] [stderr]     Checking sqlite3-sys v0.12.0
[INFO] [stderr]     Checking sqlite v0.25.3
[INFO] [stderr]     Checking paste v0.1.18
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking num-integer v0.1.44
[INFO] [stderr]     Checking simba v0.1.5
[INFO] [stderr]     Checking nalgebra v0.21.1
[INFO] [stderr]     Checking zoea v0.0.9 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `keys`
[INFO] [stdout]   --> src/kv_database.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |     let keys = list_keys(&db);
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_keys`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `non_value`
[INFO] [stdout]   --> src/kv_database.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let non_value = get(&db, &non_key); // returns String::new();
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_non_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.18s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7fd3d6b4860a4f336f114133752653c8d54f84a6701c49dc24458b53a4041921", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fd3d6b4860a4f336f114133752653c8d54f84a6701c49dc24458b53a4041921", kill_on_drop: false }`
[INFO] [stdout] 7fd3d6b4860a4f336f114133752653c8d54f84a6701c49dc24458b53a4041921