[INFO] cloning repository https://github.com/olejodd10/blackboard_course_manager
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/olejodd10/blackboard_course_manager" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Folejodd10%2Fblackboard_course_manager", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Folejodd10%2Fblackboard_course_manager'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 919d6c3048793cc9ad4fa277b2620af9e76b856a
[INFO] checking olejodd10/blackboard_course_manager against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Folejodd10%2Fblackboard_course_manager" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/olejodd10/blackboard_course_manager on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/olejodd10/blackboard_course_manager
[INFO] finished tweaking git repo https://github.com/olejodd10/blackboard_course_manager
[INFO] tweaked toml for git repo https://github.com/olejodd10/blackboard_course_manager written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/olejodd10/blackboard_course_manager already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2b28bd54b732c675a0b2dffeba8a2d593f4d95d33abb40c7d64e321f04acbfb6
[INFO] running `Command { std: "docker" "start" "-a" "2b28bd54b732c675a0b2dffeba8a2d593f4d95d33abb40c7d64e321f04acbfb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b28bd54b732c675a0b2dffeba8a2d593f4d95d33abb40c7d64e321f04acbfb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b28bd54b732c675a0b2dffeba8a2d593f4d95d33abb40c7d64e321f04acbfb6", kill_on_drop: false }`
[INFO] [stdout] 2b28bd54b732c675a0b2dffeba8a2d593f4d95d33abb40c7d64e321f04acbfb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "4cfebd0afa0344d87295af4e60c65edfd90e57b8cad21e70e974a11efb640cc1", kill_on_drop: false }`
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[INFO] [stderr]     Checking blackboard_course_manager v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `mimetype_contains` is never used
[INFO] [stdout]  --> src/utils/predicate_utils.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn mimetype_contains(attachment: &BBAttachment, substring: &str) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `small_file_mimetype` is never used
[INFO] [stdout]  --> src/utils/predicate_utils.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn small_file_mimetype(attachment: &BBAttachment) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `filename_contains` is never used
[INFO] [stdout]   --> src/utils/predicate_utils.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn filename_contains(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `title_contains` is never used
[INFO] [stdout]   --> src/utils/predicate_utils.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn title_contains(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `view` is never used
[INFO] [stdout]    --> src/bb_course/bb_content.rs:141:12
[INFO] [stdout]     |
[INFO] [stdout] 22  | impl<'a> BBContent<'a> {
[INFO] [stdout]     | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 141 |     pub fn view(&self) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `view` is never used
[INFO] [stdout]   --> src/bb_course/bb_content/bb_attachment.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl<'a, 'b> BBAttachment<'a, 'b> {
[INFO] [stdout]    | --------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 61 |     pub fn view(&self) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]  --> src/bb_course/bb_announcement.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct BBAnnouncement {
[INFO] [stdout]   |            -------------- field in this struct
[INFO] [stdout] 7 |     pub id: String,
[INFO] [stdout]   |         ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `view` is never used
[INFO] [stdout]   --> src/bb_course/bb_announcement.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl BBAnnouncement {
[INFO] [stdout]    | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn view(&self) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `content_id` are never read
[INFO] [stdout]  --> src/bb_course/bb_gradebook.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct BBGradebookColumn {
[INFO] [stdout]   |            ----------------- fields in this struct
[INFO] [stdout] 4 |     pub id: String,
[INFO] [stdout]   |         ^^
[INFO] [stdout] 5 |     pub name: String,
[INFO] [stdout] 6 |     pub content_id: String,
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Collector` is never constructed
[INFO] [stdout]  --> src/bb_session.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Collector(Vec<u8>);
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `mimetype_contains` is never used
[INFO] [stdout]  --> src/utils/predicate_utils.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn mimetype_contains(attachment: &BBAttachment, substring: &str) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `small_file_mimetype` is never used
[INFO] [stdout]  --> src/utils/predicate_utils.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn small_file_mimetype(attachment: &BBAttachment) -> bool {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `filename_contains` is never used
[INFO] [stdout]   --> src/utils/predicate_utils.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub fn filename_contains(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `title_contains` is never used
[INFO] [stdout]   --> src/utils/predicate_utils.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn title_contains(
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `view` is never used
[INFO] [stdout]    --> src/bb_course/bb_content.rs:141:12
[INFO] [stdout]     |
[INFO] [stdout] 22  | impl<'a> BBContent<'a> {
[INFO] [stdout]     | ---------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 141 |     pub fn view(&self) {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `view` is never used
[INFO] [stdout]   --> src/bb_course/bb_content/bb_attachment.rs:61:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl<'a, 'b> BBAttachment<'a, 'b> {
[INFO] [stdout]    | --------------------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 61 |     pub fn view(&self) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `id` is never read
[INFO] [stdout]  --> src/bb_course/bb_announcement.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct BBAnnouncement {
[INFO] [stdout]   |            -------------- field in this struct
[INFO] [stdout] 7 |     pub id: String,
[INFO] [stdout]   |         ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `view` is never used
[INFO] [stdout]   --> src/bb_course/bb_announcement.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl BBAnnouncement {
[INFO] [stdout]    | ------------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 34 |     pub fn view(&self) {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id` and `content_id` are never read
[INFO] [stdout]  --> src/bb_course/bb_gradebook.rs:4:9
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct BBGradebookColumn {
[INFO] [stdout]   |            ----------------- fields in this struct
[INFO] [stdout] 4 |     pub id: String,
[INFO] [stdout]   |         ^^
[INFO] [stdout] 5 |     pub name: String,
[INFO] [stdout] 6 |     pub content_id: String,
[INFO] [stdout]   |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Collector` is never constructed
[INFO] [stdout]  --> src/bb_session.rs:9:8
[INFO] [stdout]   |
[INFO] [stdout] 9 | struct Collector(Vec<u8>);
[INFO] [stdout]   |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.55s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: xml5ever v0.16.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "4cfebd0afa0344d87295af4e60c65edfd90e57b8cad21e70e974a11efb640cc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cfebd0afa0344d87295af4e60c65edfd90e57b8cad21e70e974a11efb640cc1", kill_on_drop: false }`
[INFO] [stdout] 4cfebd0afa0344d87295af4e60c65edfd90e57b8cad21e70e974a11efb640cc1