[INFO] cloning repository https://github.com/mainmatter/advanced-rust-workshop
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mainmatter/advanced-rust-workshop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmainmatter%2Fadvanced-rust-workshop", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmainmatter%2Fadvanced-rust-workshop'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 50cb7e32a051f683dfef32a603ef385247f06564
[INFO] checking mainmatter/advanced-rust-workshop against 3154cc1a3e6424e44f438a95007d043ed5ceaaf6 for pr-133502-30
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmainmatter%2Fadvanced-rust-workshop" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-3-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/mainmatter/advanced-rust-workshop
[INFO] finished tweaking git repo https://github.com/mainmatter/advanced-rust-workshop
[INFO] tweaked toml for git repo https://github.com/mainmatter/advanced-rust-workshop written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mainmatter/advanced-rust-workshop on toolchain 3154cc1a3e6424e44f438a95007d043ed5ceaaf6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mainmatter/advanced-rust-workshop 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" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 0f911db802dfe495ff7f5649d4baeeac943c3e675ed8e4e1b4e0401af025d20b
[INFO] running `Command { std: "docker" "start" "0f911db802dfe495ff7f5649d4baeeac943c3e675ed8e4e1b4e0401af025d20b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f911db802dfe495ff7f5649d4baeeac943c3e675ed8e4e1b4e0401af025d20b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0f911db802dfe495ff7f5649d4baeeac943c3e675ed8e4e1b4e0401af025d20b" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0f911db802dfe495ff7f5649d4baeeac943c3e675ed8e4e1b4e0401af025d20b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "0f911db802dfe495ff7f5649d4baeeac943c3e675ed8e4e1b4e0401af025d20b" "/opt/rustwide/cargo-home/bin/cargo" "+3154cc1a3e6424e44f438a95007d043ed5ceaaf6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking newtype_parse_dont_validate v0.1.0 (/opt/rustwide/workdir/exercises/02_newtype/02_parse_dont_validate)
[INFO] [stderr]     Checking api_design_doc_comments v0.1.0 (/opt/rustwide/workdir/exercises/01_api_design/02_doc_comments)
[INFO] [stderr]     Checking raii_closure_api v0.1.0 (/opt/rustwide/workdir/exercises/05_raii/04_closure_api)
[INFO] [stderr]     Checking raii_drop_bomb v0.1.0 (/opt/rustwide/workdir/exercises/05_raii/03_drop_bomb)
[INFO] [stderr]     Checking api_design_intro v0.1.0 (/opt/rustwide/workdir/exercises/01_api_design/00_intro)
[INFO] [stderr]     Checking api_design_naming v0.1.0 (/opt/rustwide/workdir/exercises/01_api_design/01_naming)
[INFO] [stderr]     Checking common_traits_intro v0.1.0 (/opt/rustwide/workdir/exercises/03_common_traits/00_intro)
[INFO] [stderr]     Checking borrowing_intro v0.1.0 (/opt/rustwide/workdir/exercises/04_borrowing/00_intro)
[INFO] [stderr]     Checking extension_traits_intro v0.1.0 (/opt/rustwide/workdir/exercises/07_extension_traits/00_intro)
[INFO] [stdout] warning: unused import: `thread`
[INFO] [stdout]   --> exercises/05_raii/03_drop_bomb/src/lib.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 30 |     mem, thread,
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `raw`
[INFO] [stdout]   --> exercises/02_newtype/02_parse_dont_validate/src/lib.rs:73:18
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn parse(raw: &str) -> Result<Self, NameError> {
[INFO] [stdout]    |                  ^^^ help: if this is intentional, prefix it with an underscore: `_raw`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `raw`
[INFO] [stdout]   --> exercises/02_newtype/02_parse_dont_validate/src/lib.rs:88:18
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub fn parse(raw: &str) -> Result<Self, NameError> {
[INFO] [stdout]    |                  ^^^ help: if this is intentional, prefix it with an underscore: `_raw`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: missing documentation for a method
[INFO] [stdout]   --> exercises/01_api_design/02_doc_comments/src/lib.rs:84:5
[INFO] [stdout]    |
[INFO] [stdout] 84 |     pub fn contains_bucket(&self, bucket: &str) -> bool {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> exercises/01_api_design/02_doc_comments/src/lib.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![deny(missing_docs)]
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: missing documentation for a method
[INFO] [stdout]   --> exercises/01_api_design/02_doc_comments/src/lib.rs:88:5
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub fn len(&self) -> usize {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: missing documentation for a method
[INFO] [stdout]   --> exercises/01_api_design/02_doc_comments/src/lib.rs:92:5
[INFO] [stdout]    |
[INFO] [stdout] 92 |     pub fn is_empty(&self) -> bool {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_NAME_LENGTH` is never used
[INFO] [stdout]   --> exercises/02_newtype/02_parse_dont_validate/src/lib.rs:29:7
[INFO] [stdout]    |
[INFO] [stdout] 29 | const MAX_NAME_LENGTH: usize = 64;
[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 `is_valid_char` is never used
[INFO] [stdout]    --> exercises/02_newtype/02_parse_dont_validate/src/lib.rs:101:4
[INFO] [stdout]     |
[INFO] [stdout] 101 | fn is_valid_char(c: char) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `api_design_doc_comments` (lib) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `finished` is never read
[INFO] [stdout]   --> exercises/05_raii/03_drop_bomb/src/lib.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 93 | pub struct Transaction<'store> {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 96 |     finished: 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: unused variable: `raw`
[INFO] [stdout]   --> exercises/02_newtype/02_parse_dont_validate/src/lib.rs:73:18
[INFO] [stdout]    |
[INFO] [stdout] 73 |     pub fn parse(raw: &str) -> Result<Self, NameError> {
[INFO] [stdout]    |                  ^^^ help: if this is intentional, prefix it with an underscore: `_raw`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `raw`
[INFO] [stdout]   --> exercises/02_newtype/02_parse_dont_validate/src/lib.rs:88:18
[INFO] [stdout]    |
[INFO] [stdout] 88 |     pub fn parse(raw: &str) -> Result<Self, NameError> {
[INFO] [stdout]    |                  ^^^ help: if this is intentional, prefix it with an underscore: `_raw`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `is_valid_char` is never used
[INFO] [stdout]    --> exercises/02_newtype/02_parse_dont_validate/src/lib.rs:101:4
[INFO] [stdout]     |
[INFO] [stdout] 101 | fn is_valid_char(c: char) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0f911db802dfe495ff7f5649d4baeeac943c3e675ed8e4e1b4e0401af025d20b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f911db802dfe495ff7f5649d4baeeac943c3e675ed8e4e1b4e0401af025d20b", kill_on_drop: false }`
[INFO] [stdout] 0f911db802dfe495ff7f5649d4baeeac943c3e675ed8e4e1b4e0401af025d20b
