[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 try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Folejodd10%2Fblackboard_course_manager" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[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-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/olejodd10/blackboard_course_manager on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6f23429206b358993d9eb620ec28ecc53ef6247e1dee335c73c567daa354eff
[INFO] running `Command { std: "docker" "start" "-a" "e6f23429206b358993d9eb620ec28ecc53ef6247e1dee335c73c567daa354eff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6f23429206b358993d9eb620ec28ecc53ef6247e1dee335c73c567daa354eff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6f23429206b358993d9eb620ec28ecc53ef6247e1dee335c73c567daa354eff", kill_on_drop: false }`
[INFO] [stdout] e6f23429206b358993d9eb620ec28ecc53ef6247e1dee335c73c567daa354eff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0249bf44c59a75975d1c255517b991809fd0339a1bb42b3b84cd8cd3d857f8b
[INFO] running `Command { std: "docker" "start" "-a" "b0249bf44c59a75975d1c255517b991809fd0339a1bb42b3b84cd8cd3d857f8b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.122
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]     Checking siphasher v0.3.10
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]     Checking new_debug_unreachable v1.0.4
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[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling curl-sys v0.4.53+curl-7.82.0
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[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]     Checking atty v0.2.14
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[INFO] [stderr]    Compiling cssparser v0.27.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
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[INFO] [stderr]    Compiling derive_more v0.99.17
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[INFO] [stderr]     Checking thiserror v1.0.30
[INFO] [stderr]     Checking zip v0.5.13
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[INFO] [stderr]     Checking zip-extract v0.1.1
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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)]` (part of `#[warn(unused)]`) 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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/bb_course.rs:118:32
[INFO] [stdout]     |
[INFO] [stdout] 118 |     fn get_course_root_content(&self, session: &BBSession) -> Result<Vec<BBContent>, Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                ^^^^^ the lifetime is elided here         ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 118 |     fn get_course_root_content(&self, session: &BBSession) -> Result<Vec<BBContent<'_>>, Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bb_course/bb_content.rs:41:21
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn get_children(&self, session: &BBSession) -> Result<Vec<BBContent>, Box<dyn std::error::Error>> {
[INFO] [stdout]    |                     ^^^^^ the lifetime is elided here         ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn get_children(&self, session: &BBSession) -> Result<Vec<BBContent<'_>>, Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bb_course/bb_content.rs:46:24
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn get_attachments(&self, session: &BBSession) -> Result<Vec<BBAttachment>, Box<dyn std::error::Error>> {
[INFO] [stdout]    |                        ^^^^^                                     ^^^^^^^^^^^^
[INFO] [stdout]    |                        |                                         |
[INFO] [stdout]    |                        |                                         the same lifetime is hidden here
[INFO] [stdout]    |                        the lifetime is elided here               the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn get_attachments(&self, session: &BBSession) -> Result<Vec<BBAttachment<'_>>, Box<dyn std::error::Error>> {
[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)]` (part of `#[warn(unused)]`) 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: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/bb_course.rs:118:32
[INFO] [stdout]     |
[INFO] [stdout] 118 |     fn get_course_root_content(&self, session: &BBSession) -> Result<Vec<BBContent>, Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                ^^^^^ the lifetime is elided here         ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 118 |     fn get_course_root_content(&self, session: &BBSession) -> Result<Vec<BBContent<'_>>, Box<dyn std::error::Error>> {
[INFO] [stdout]     |                                                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bb_course/bb_content.rs:41:21
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn get_children(&self, session: &BBSession) -> Result<Vec<BBContent>, Box<dyn std::error::Error>> {
[INFO] [stdout]    |                     ^^^^^ the lifetime is elided here         ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn get_children(&self, session: &BBSession) -> Result<Vec<BBContent<'_>>, Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bb_course/bb_content.rs:46:24
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn get_attachments(&self, session: &BBSession) -> Result<Vec<BBAttachment>, Box<dyn std::error::Error>> {
[INFO] [stdout]    |                        ^^^^^                                     ^^^^^^^^^^^^
[INFO] [stdout]    |                        |                                         |
[INFO] [stdout]    |                        |                                         the same lifetime is hidden here
[INFO] [stdout]    |                        the lifetime is elided here               the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn get_attachments(&self, session: &BBSession) -> Result<Vec<BBAttachment<'_>>, Box<dyn std::error::Error>> {
[INFO] [stdout]    |                                                                              ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.62s
[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 20`
[INFO] running `Command { std: "docker" "inspect" "b0249bf44c59a75975d1c255517b991809fd0339a1bb42b3b84cd8cd3d857f8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0249bf44c59a75975d1c255517b991809fd0339a1bb42b3b84cd8cd3d857f8b", kill_on_drop: false }`
[INFO] [stdout] b0249bf44c59a75975d1c255517b991809fd0339a1bb42b3b84cd8cd3d857f8b
