[INFO] cloning repository https://github.com/HasanHaghniya/RustOdyssey
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/HasanHaghniya/RustOdyssey" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHasanHaghniya%2FRustOdyssey", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHasanHaghniya%2FRustOdyssey'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 11489390bd4a0995d9f9a23dc1f4d32466247248
[INFO] checking HasanHaghniya/RustOdyssey against master#5a45ab9738330fb317d49e3594c2db5248b1e971 for pr-136303
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHasanHaghniya%2FRustOdyssey" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/HasanHaghniya/RustOdyssey on toolchain 5a45ab9738330fb317d49e3594c2db5248b1e971
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/HasanHaghniya/RustOdyssey
[INFO] finished tweaking git repo https://github.com/HasanHaghniya/RustOdyssey
[INFO] tweaked toml for git repo https://github.com/HasanHaghniya/RustOdyssey written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/HasanHaghniya/RustOdyssey 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" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 15aa7b103669a5c52f1f8d0c494e1bc4213be4f18edc16bff4de30e8e9f34dfa
[INFO] running `Command { std: "docker" "start" "-a" "15aa7b103669a5c52f1f8d0c494e1bc4213be4f18edc16bff4de30e8e9f34dfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "15aa7b103669a5c52f1f8d0c494e1bc4213be4f18edc16bff4de30e8e9f34dfa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "15aa7b103669a5c52f1f8d0c494e1bc4213be4f18edc16bff4de30e8e9f34dfa", kill_on_drop: false }`
[INFO] [stdout] 15aa7b103669a5c52f1f8d0c494e1bc4213be4f18edc16bff4de30e8e9f34dfa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c5745e45074a6ec8debfc4e6c1d1468e384ad12815fc26c1e559ee7b858d20f
[INFO] running `Command { std: "docker" "start" "-a" "0c5745e45074a6ec8debfc4e6c1d1468e384ad12815fc26c1e559ee7b858d20f", kill_on_drop: false }`
[INFO] [stderr]     Checking option v0.1.0 (/opt/rustwide/workdir/src/fundamentals/option)
[INFO] [stderr]     Checking iterator v0.1.0 (/opt/rustwide/workdir/src/fundamentals/iterator)
[INFO] [stderr]     Checking user-input v0.1.0 (/opt/rustwide/workdir/src/fundamentals/user-input)
[INFO] [stderr]     Checking result v0.1.0 (/opt/rustwide/workdir/src/fundamentals/result)
[INFO] [stderr]     Checking RustOdyssey v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking testing v0.1.0 (/opt/rustwide/workdir/src/fundamentals/testing)
[INFO] [stderr]     Checking map-combinator v0.1.0 (/opt/rustwide/workdir/src/fundamentals/map-combinator)
[INFO] [stderr]     Checking generic-functions v0.1.0 (/opt/rustwide/workdir/src/fundamentals/generic-functions)
[INFO] [stderr]     Checking hashmap v0.1.0 (/opt/rustwide/workdir/src/fundamentals/hashmap)
[INFO] [stderr]     Checking option-combinator v0.1.0 (/opt/rustwide/workdir/src/fundamentals/option-combinator)
[INFO] [stdout] warning: function `clamp` is never used
[INFO] [stdout]  --> src/fundamentals/testing/src/main.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn clamp(n: i32, lower: i32, upper: i32) -> i32 {
[INFO] [stdout]   |    ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `div` is never used
[INFO] [stdout]   --> src/fundamentals/testing/src/main.rs:13:4
[INFO] [stdout]    |
[INFO] [stdout] 13 | fn div(a: i32, b: i32) -> Option<i32> {
[INFO] [stdout]    |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `concat` is never used
[INFO] [stdout]   --> src/fundamentals/testing/src/main.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn concat(first: &str, second: &str) -> String {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking advanced_match v0.1.0 (/opt/rustwide/workdir/src/fundamentals/advanced_match)
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/fundamentals/hashmap/src/main.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         (count) => println!("total item count: {}", count),
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 25 -         (count) => println!("total item count: {}", count),
[INFO] [stdout] 25 +         count => println!("total item count: {}", count),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/fundamentals/option/src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Student {
[INFO] [stdout]   |        ------- field in this struct
[INFO] [stdout] 2 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `user_id` and `name` are never read
[INFO] [stdout]  --> src/fundamentals/map-combinator/src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct User {
[INFO] [stdout]   |        ---- fields in this struct
[INFO] [stdout] 3 |     user_id: i32,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 4 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking traits v0.1.0 (/opt/rustwide/workdir/src/fundamentals/traits)
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]  --> src/fundamentals/option/src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Student {
[INFO] [stdout]   |        ------- field in this struct
[INFO] [stdout] 2 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]  --> src/fundamentals/iterator/src/main.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let data = vec![1, 2, 3, 4, 5]
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 6 |         .collect();
[INFO] [stdout]   |          ------- type must be known at this point
[INFO] [stdout]   |
[INFO] [stdout]   = note: cannot satisfy `_: FromIterator<i32>`
[INFO] [stdout] note: required by a bound in `collect`
[INFO] [stdout]  --> /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/core/src/iter/traits/iterator.rs:1967:5
[INFO] [stdout] help: consider giving `data` an explicit type
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let data: Vec<_> = vec![1, 2, 3, 4, 5]
[INFO] [stdout]   |             ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part_1` is never used
[INFO] [stdout]   --> src/fundamentals/option-combinator/src/main.rs:11:4
[INFO] [stdout]    |
[INFO] [stdout] 11 | fn part_1() -> bool {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part_2` is never used
[INFO] [stdout]   --> src/fundamentals/option-combinator/src/main.rs:19:4
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn part_2() -> Option<Access> {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `part_3` is never used
[INFO] [stdout]   --> src/fundamentals/option-combinator/src/main.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn part_3() -> Access {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Access` is never used
[INFO] [stdout]   --> src/fundamentals/option-combinator/src/main.rs:33:6
[INFO] [stdout]    |
[INFO] [stdout] 33 | enum Access {
[INFO] [stdout]    |      ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `maybe_access` is never used
[INFO] [stdout]   --> src/fundamentals/option-combinator/src/main.rs:39:4
[INFO] [stdout]    |
[INFO] [stdout] 39 | fn maybe_access(name: &str) -> Option<Access> {
[INFO] [stdout]    |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `user_id` and `name` are never read
[INFO] [stdout]  --> src/fundamentals/map-combinator/src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | struct User {
[INFO] [stdout]   |        ---- fields in this struct
[INFO] [stdout] 3 |     user_id: i32,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 4 |     name: String,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `User` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `root` is never used
[INFO] [stdout]   --> src/fundamentals/option-combinator/src/main.rs:47:4
[INFO] [stdout]    |
[INFO] [stdout] 47 | fn root() -> Option<Access> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iterator` (bin "iterator" test) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unnecessary parentheses around pattern
[INFO] [stdout]   --> src/fundamentals/hashmap/src/main.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |         (count) => println!("total item count: {}", count),
[INFO] [stdout]    |         ^     ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 25 -         (count) => println!("total item count: {}", count),
[INFO] [stdout] 25 +         count => println!("total item count: {}", count),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]  --> src/fundamentals/iterator/src/main.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let data = vec![1, 2, 3, 4, 5]
[INFO] [stdout]   |         ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 6 |         .collect();
[INFO] [stdout]   |          ------- type must be known at this point
[INFO] [stdout]   |
[INFO] [stdout]   = note: cannot satisfy `_: FromIterator<i32>`
[INFO] [stdout] note: required by a bound in `collect`
[INFO] [stdout]  --> /rustc/5a45ab9738330fb317d49e3594c2db5248b1e971/library/core/src/iter/traits/iterator.rs:1967:5
[INFO] [stdout] help: consider giving `data` an explicit type
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let data: Vec<_> = vec![1, 2, 3, 4, 5]
[INFO] [stdout]   |             ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iterator` (bin "iterator") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "0c5745e45074a6ec8debfc4e6c1d1468e384ad12815fc26c1e559ee7b858d20f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c5745e45074a6ec8debfc4e6c1d1468e384ad12815fc26c1e559ee7b858d20f", kill_on_drop: false }`
[INFO] [stdout] 0c5745e45074a6ec8debfc4e6c1d1468e384ad12815fc26c1e559ee7b858d20f
