[INFO] cloning repository https://github.com/max-block/test__rocket_mongodb
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/max-block/test__rocket_mongodb" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmax-block%2Ftest__rocket_mongodb", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmax-block%2Ftest__rocket_mongodb'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ecf1a95905b0e83603194bacb4cd5ae9b1875b0f
[INFO] checking max-block/test__rocket_mongodb against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmax-block%2Ftest__rocket_mongodb" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/max-block/test__rocket_mongodb 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 git repo https://github.com/max-block/test__rocket_mongodb
[INFO] finished tweaking git repo https://github.com/max-block/test__rocket_mongodb
[INFO] tweaked toml for git repo https://github.com/max-block/test__rocket_mongodb written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/max-block/test__rocket_mongodb already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--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-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 92d8638ea5c559205e6e82a5249b253329823386f1a4602636c6b8844b554c49
[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" "92d8638ea5c559205e6e82a5249b253329823386f1a4602636c6b8844b554c49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "92d8638ea5c559205e6e82a5249b253329823386f1a4602636c6b8844b554c49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92d8638ea5c559205e6e82a5249b253329823386f1a4602636c6b8844b554c49", kill_on_drop: false }`
[INFO] [stdout] 92d8638ea5c559205e6e82a5249b253329823386f1a4602636c6b8844b554c49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b846f0eb4b8952fa7c731ebfb73c7d15f41aba36417cbe0d06ea2161f25aa95e
[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" "b846f0eb4b8952fa7c731ebfb73c7d15f41aba36417cbe0d06ea2161f25aa95e", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking fastrand v1.3.5
[INFO] [stderr]    Compiling rustversion v1.0.3
[INFO] [stderr]     Checking event-listener v2.4.0
[INFO] [stderr]     Checking async-task v4.0.1
[INFO] [stderr]    Compiling serde_json v1.0.57
[INFO] [stderr]     Checking futures-task v0.3.5
[INFO] [stderr]     Checking nb-connect v1.0.0
[INFO] [stderr]     Checking parking_lot_core v0.7.2
[INFO] [stderr]     Checking ring v0.16.15
[INFO] [stderr]     Checking pbkdf2 v0.3.0
[INFO] [stderr]    Compiling typed-builder v0.3.0
[INFO] [stderr]     Checking md-5 v0.8.0
[INFO] [stderr]     Checking sha-1 v0.8.2
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling async-trait v0.1.40
[INFO] [stderr]    Compiling serde_with_macros v1.1.0
[INFO] [stderr]    Compiling async-attributes v1.1.1
[INFO] [stderr]    Compiling derivative v2.1.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking async-channel v1.4.2
[INFO] [stderr]     Checking async-mutex v1.3.0
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking chrono v0.4.15
[INFO] [stderr]     Checking futures-lite v1.7.0
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking parking_lot v0.10.2
[INFO] [stderr]     Checking mio v0.6.22
[INFO] [stderr]     Checking polling v1.1.0
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking os_info v2.0.8
[INFO] [stderr]     Checking futures-intrusive v0.3.1
[INFO] [stderr]     Checking webpki v0.21.3
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking async-executor v1.3.0
[INFO] [stderr]     Checking async-io v1.1.2
[INFO] [stderr]     Checking blocking v1.0.0
[INFO] [stderr]     Checking serde_with v1.4.0
[INFO] [stderr]     Checking rustls v0.17.0
[INFO] [stderr]     Checking webpki-roots v0.18.0
[INFO] [stderr]     Checking tokio v0.2.22
[INFO] [stderr]     Checking async-global-executor v1.1.1
[INFO] [stderr]     Checking async-std v1.6.4
[INFO] [stderr]     Checking bson v1.1.0
[INFO] [stderr]    Compiling err-derive v0.2.4
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking tokio-rustls v0.13.1
[INFO] [stderr]     Checking futures-executor v0.3.5
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking trust-dns-proto v0.19.5
[INFO] [stderr]     Checking trust-dns-resolver v0.19.5
[INFO] [stderr]     Checking mongodb v1.1.1
[INFO] [stderr]     Checking app v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/db.rs:30:29
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn find_data(&self, name: Option<String>, limit: u64) {
[INFO] [stdout]    |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `limit`
[INFO] [stdout]   --> src/db.rs:30:51
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn find_data(&self, name: Option<String>, limit: u64) {
[INFO] [stdout]    |                                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_limit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_data`
[INFO] [stdout]   --> src/db.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn find_data(&self, name: Option<String>, limit: u64) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]   --> src/db.rs:30:29
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn find_data(&self, name: Option<String>, limit: u64) {
[INFO] [stdout]    |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `limit`
[INFO] [stdout]   --> src/db.rs:30:51
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn find_data(&self, name: Option<String>, limit: u64) {
[INFO] [stdout]    |                                                   ^^^^^ help: if this is intentional, prefix it with an underscore: `_limit`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_data`
[INFO] [stdout]   --> src/db.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn find_data(&self, name: Option<String>, limit: u64) {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 17s
[INFO] running `Command { std: "docker" "inspect" "b846f0eb4b8952fa7c731ebfb73c7d15f41aba36417cbe0d06ea2161f25aa95e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b846f0eb4b8952fa7c731ebfb73c7d15f41aba36417cbe0d06ea2161f25aa95e", kill_on_drop: false }`
[INFO] [stdout] b846f0eb4b8952fa7c731ebfb73c7d15f41aba36417cbe0d06ea2161f25aa95e