[INFO] cloning repository https://github.com/crawlis/professor
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/crawlis/professor" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrawlis%2Fprofessor", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrawlis%2Fprofessor'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e8463ff595cdab544893bf88a32376e6628af61e
[INFO] testing crawlis/professor against beta-2020-10-09 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrawlis%2Fprofessor" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/crawlis/professor on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/crawlis/professor
[INFO] finished tweaking git repo https://github.com/crawlis/professor
[INFO] tweaked toml for git repo https://github.com/crawlis/professor written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/crawlis/professor already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0e6d4411704c4f6ddbf8d03f9f672144173cbe800a94216020f05c1234971ece
[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" "0e6d4411704c4f6ddbf8d03f9f672144173cbe800a94216020f05c1234971ece", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0e6d4411704c4f6ddbf8d03f9f672144173cbe800a94216020f05c1234971ece", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e6d4411704c4f6ddbf8d03f9f672144173cbe800a94216020f05c1234971ece", kill_on_drop: false }`
[INFO] [stdout] 0e6d4411704c4f6ddbf8d03f9f672144173cbe800a94216020f05c1234971ece
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--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] 7c3f18e69d106d101e86fe727024b8914fab36478e458fb0942499475fa7a8e3
[INFO] running `Command { std: "docker" "start" "-a" "7c3f18e69d106d101e86fe727024b8914fab36478e458fb0942499475fa7a8e3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling mio-uds v0.6.8
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling diesel_derives v1.4.1
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling openssl v0.10.30
[INFO] [stderr]    Compiling tokio v0.2.21
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling diesel v1.4.5
[INFO] [stderr]    Compiling serde_json v1.0.56
[INFO] [stderr]    Compiling professor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `get_conn`
[INFO] [stdout]   --> src/persistence/database.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn get_conn(&self) -> Result<PgConnection, diesel::ConnectionError> {
[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: `wait_for_conn`
[INFO] [stdout]   --> src/persistence/database.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn wait_for_conn(
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_parent`
[INFO] [stdout]   --> src/persistence/database.rs:53:18
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub async fn insert_parent(
[INFO] [stdout]    |                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_node`
[INFO] [stdout]   --> src/persistence/database.rs:65:18
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub async fn insert_node(
[INFO] [stdout]    |                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update_node`
[INFO] [stdout]   --> src/persistence/database.rs:77:18
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub async fn update_node(
[INFO] [stdout]    |                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `config`
[INFO] [stdout]   --> src/professor.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     config: ProfessorConfig,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `database`
[INFO] [stdout]   --> src/professor.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     database: database::Database,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 40s
[INFO] running `Command { std: "docker" "inspect" "7c3f18e69d106d101e86fe727024b8914fab36478e458fb0942499475fa7a8e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c3f18e69d106d101e86fe727024b8914fab36478e458fb0942499475fa7a8e3", kill_on_drop: false }`
[INFO] [stdout] 7c3f18e69d106d101e86fe727024b8914fab36478e458fb0942499475fa7a8e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90f16ca78aafd28259fb0d8f6293f3f18b21e2c6008de4c884b26a4933fdc0a1
[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" "90f16ca78aafd28259fb0d8f6293f3f18b21e2c6008de4c884b26a4933fdc0a1", kill_on_drop: false }`
[INFO] [stderr]    Compiling professor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `get_conn`
[INFO] [stdout]   --> src/persistence/database.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn get_conn(&self) -> Result<PgConnection, diesel::ConnectionError> {
[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: `wait_for_conn`
[INFO] [stdout]   --> src/persistence/database.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn wait_for_conn(
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_parent`
[INFO] [stdout]   --> src/persistence/database.rs:53:18
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub async fn insert_parent(
[INFO] [stdout]    |                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_node`
[INFO] [stdout]   --> src/persistence/database.rs:65:18
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub async fn insert_node(
[INFO] [stdout]    |                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update_node`
[INFO] [stdout]   --> src/persistence/database.rs:77:18
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub async fn update_node(
[INFO] [stdout]    |                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `config`
[INFO] [stdout]   --> src/professor.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     config: ProfessorConfig,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `database`
[INFO] [stdout]   --> src/professor.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     database: database::Database,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_conn`
[INFO] [stdout]   --> src/persistence/database.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn get_conn(&self) -> Result<PgConnection, diesel::ConnectionError> {
[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: `wait_for_conn`
[INFO] [stdout]   --> src/persistence/database.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 |     pub fn wait_for_conn(
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_parent`
[INFO] [stdout]   --> src/persistence/database.rs:53:18
[INFO] [stdout]    |
[INFO] [stdout] 53 |     pub async fn insert_parent(
[INFO] [stdout]    |                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `insert_node`
[INFO] [stdout]   --> src/persistence/database.rs:65:18
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub async fn insert_node(
[INFO] [stdout]    |                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update_node`
[INFO] [stdout]   --> src/persistence/database.rs:77:18
[INFO] [stdout]    |
[INFO] [stdout] 77 |     pub async fn update_node(
[INFO] [stdout]    |                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `config`
[INFO] [stdout]   --> src/professor.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     config: ProfessorConfig,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `database`
[INFO] [stdout]   --> src/professor.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 |     database: database::Database,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.58s
[INFO] running `Command { std: "docker" "inspect" "90f16ca78aafd28259fb0d8f6293f3f18b21e2c6008de4c884b26a4933fdc0a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90f16ca78aafd28259fb0d8f6293f3f18b21e2c6008de4c884b26a4933fdc0a1", kill_on_drop: false }`
[INFO] [stdout] 90f16ca78aafd28259fb0d8f6293f3f18b21e2c6008de4c884b26a4933fdc0a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e4b0c90a8d63fed6468650e5ff0912611b56144e695ab72159c4657960fd7be6
[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" "e4b0c90a8d63fed6468650e5ff0912611b56144e695ab72159c4657960fd7be6", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `get_conn`
[INFO] [stderr]   --> src/persistence/database.rs:20:12
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn get_conn(&self) -> Result<PgConnection, diesel::ConnectionError> {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `wait_for_conn`
[INFO] [stderr]   --> src/persistence/database.rs:25:12
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn wait_for_conn(
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `insert_parent`
[INFO] [stderr]   --> src/persistence/database.rs:53:18
[INFO] [stderr]    |
[INFO] [stderr] 53 |     pub async fn insert_parent(
[INFO] [stderr]    |                  ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `insert_node`
[INFO] [stderr]   --> src/persistence/database.rs:65:18
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub async fn insert_node(
[INFO] [stderr]    |                  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `update_node`
[INFO] [stderr]   --> src/persistence/database.rs:77:18
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub async fn update_node(
[INFO] [stderr]    |                  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `config`
[INFO] [stderr]   --> src/professor.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     config: ProfessorConfig,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `get_conn`
[INFO] [stderr]   --> src/persistence/database.rs:20:12
[INFO] [stderr]    |
[INFO] [stderr] 20 |     pub fn get_conn(&self) -> Result<PgConnection, diesel::ConnectionError> {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `wait_for_conn`
[INFO] [stderr]   --> src/persistence/database.rs:25:12
[INFO] [stderr]    |
[INFO] [stderr] 25 |     pub fn wait_for_conn(
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `insert_parent`
[INFO] [stderr]   --> src/persistence/database.rs:53:18
[INFO] [stderr]    |
[INFO] [stderr] 53 |     pub async fn insert_parent(
[INFO] [stderr]    |                  ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `database`
[INFO] [stderr]   --> src/professor.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     database: database::Database,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `insert_node`
[INFO] [stderr]   --> src/persistence/database.rs:65:18
[INFO] [stderr]    |
[INFO] [stderr] 65 |     pub async fn insert_node(
[INFO] [stderr]    |                  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `update_node`
[INFO] [stderr]   --> src/persistence/database.rs:77:18
[INFO] [stderr]    |
[INFO] [stderr] 77 |     pub async fn update_node(
[INFO] [stderr]    |                  ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `config`
[INFO] [stderr]   --> src/professor.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     config: ProfessorConfig,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `database`
[INFO] [stderr]   --> src/professor.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     database: database::Database,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 7 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.30s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/professor-60eac06b6998edf4
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/professor-daa6d682625f2d9a
[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] [stderr]    Doc-tests professor
[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" "e4b0c90a8d63fed6468650e5ff0912611b56144e695ab72159c4657960fd7be6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4b0c90a8d63fed6468650e5ff0912611b56144e695ab72159c4657960fd7be6", kill_on_drop: false }`
[INFO] [stdout] e4b0c90a8d63fed6468650e5ff0912611b56144e695ab72159c4657960fd7be6
