[INFO] cloning repository https://github.com/DKolaya/rustling
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DKolaya/rustling" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDKolaya%2Frustling", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDKolaya%2Frustling'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 764960ec2f357856dacfaa37077ad8920d982bfc
[INFO] checking DKolaya/rustling against master#f8463896a9b36a04899c013bd8825a7fd29dd7a4 for pr-151920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDKolaya%2Frustling" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] [stderr] Updating files:  48% (3241/6650)
Updating files:  49% (3259/6650)
Updating files:  50% (3325/6650)
Updating files:  51% (3392/6650)
Updating files:  52% (3458/6650)
Updating files:  53% (3525/6650)
Updating files:  54% (3591/6650)
Updating files:  55% (3658/6650)
Updating files:  56% (3724/6650)
Updating files:  57% (3791/6650)
Updating files:  58% (3857/6650)
Updating files:  59% (3924/6650)
Updating files:  59% (3952/6650)
Updating files:  60% (3990/6650)
Updating files:  61% (4057/6650)
Updating files:  62% (4123/6650)
Updating files:  63% (4190/6650)
Updating files:  64% (4256/6650)
Updating files:  65% (4323/6650)
Updating files:  66% (4389/6650)
Updating files:  67% (4456/6650)
Updating files:  68% (4522/6650)
Updating files:  69% (4589/6650)
Updating files:  70% (4655/6650)
Updating files:  71% (4722/6650)
Updating files:  72% (4788/6650)
Updating files:  73% (4855/6650)
Updating files:  74% (4921/6650)
Updating files:  75% (4988/6650)
Updating files:  76% (5054/6650)
Updating files:  77% (5121/6650)
Updating files:  78% (5187/6650)
Updating files:  79% (5254/6650)
Updating files:  80% (5320/6650)
Updating files:  81% (5387/6650)
Updating files:  82% (5453/6650)
Updating files:  83% (5520/6650)
Updating files:  84% (5586/6650)
Updating files:  85% (5653/6650)
Updating files:  86% (5719/6650)
Updating files:  87% (5786/6650)
Updating files:  88% (5852/6650)
Updating files:  89% (5919/6650)
Updating files:  90% (5985/6650)
Updating files:  91% (6052/6650)
Updating files:  92% (6118/6650)
Updating files:  93% (6185/6650)
Updating files:  94% (6251/6650)
Updating files:  95% (6318/6650)
Updating files:  96% (6384/6650)
Updating files:  97% (6451/6650)
Updating files:  98% (6517/6650)
Updating files:  99% (6584/6650)
Updating files:  99% (6623/6650)
Updating files: 100% (6650/6650)
Updating files: 100% (6650/6650), done.
[INFO] started tweaking git repo https://github.com/DKolaya/rustling
[INFO] finished tweaking git repo https://github.com/DKolaya/rustling
[INFO] tweaked toml for git repo https://github.com/DKolaya/rustling written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/DKolaya/rustling on toolchain f8463896a9b36a04899c013bd8825a7fd29dd7a4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/DKolaya/rustling 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" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8def5183214de6575a3721c6b0a758f75a4047a4e333452f76a5ea215edfffa3
[INFO] running `Command { std: "docker" "start" "-a" "8def5183214de6575a3721c6b0a758f75a4047a4e333452f76a5ea215edfffa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8def5183214de6575a3721c6b0a758f75a4047a4e333452f76a5ea215edfffa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8def5183214de6575a3721c6b0a758f75a4047a4e333452f76a5ea215edfffa3", kill_on_drop: false }`
[INFO] [stdout] 8def5183214de6575a3721c6b0a758f75a4047a4e333452f76a5ea215edfffa3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+f8463896a9b36a04899c013bd8825a7fd29dd7a4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] af655e803446f5548a680cfdc62c793f15bb4be34e6b7d694dc2ff6c27c60f08
[INFO] running `Command { std: "docker" "start" "-a" "af655e803446f5548a680cfdc62c793f15bb4be34e6b7d694dc2ff6c27c60f08", kill_on_drop: false }`
[INFO] [stderr]     Checking exercises v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0282]: type annotations needed for `Vec<_>`
[INFO] [stdout]  --> exercises/14_generics/generics1.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut numbers = Vec::new();
[INFO] [stdout]   |         ^^^^^^^^^^^   ---------- type must be known at this point
[INFO] [stdout]   |
[INFO] [stdout] help: consider giving `numbers` an explicit type, where the type for type parameter `T` is specified
[INFO] [stdout]   |
[INFO] [stdout] 9 |     let mut numbers: Vec<T> = Vec::new();
[INFO] [stdout]   |                    ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "errors1" test) due to 3 previous errors
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/13_error_handling/errors1.rs:28:13
[INFO] [stdout]    |
[INFO] [stdout] 28 |             Ok("Hi! My name is Beyoncé"),
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `Option<&str>`, found `Result<&str, _>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected enum `Option<&str>`
[INFO] [stdout]               found enum `Result<&str, _>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0599]: no method named `map_err` found for enum `Option<T>` in the current scope
[INFO] [stdout]   --> exercises/13_error_handling/errors1.rs:37:18
[INFO] [stdout]    |
[INFO] [stdout] 35 | /             generate_nametag_text(String::new())
[INFO] [stdout] 36 | |                 .as_ref()
[INFO] [stdout] 37 | |                 .map_err(|e| e.as_str()),
[INFO] [stdout]    | |_________________-^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a method `map_or` with a similar name, but with different arguments
[INFO] [stdout]   --> /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/core/src/option.rs:1224:4
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> exercises/13_error_handling/errors1.rs:37:27
[INFO] [stdout]    |
[INFO] [stdout] 37 |                 .map_err(|e| e.as_str()),
[INFO] [stdout]    |                           ^  - type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider giving this closure parameter an explicit type
[INFO] [stdout]    |
[INFO] [stdout] 37 |                 .map_err(|e: /* Type */| e.as_str()),
[INFO] [stdout]    |                            ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0308, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> exercises/09_strings/strings3.rs:1:28
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn trim_me(input: &str) -> &str {
[INFO] [stdout]   |    -------                 ^^^^ expected `&str`, found `()`
[INFO] [stdout]   |    |
[INFO] [stdout]   |    implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]   |
[INFO] [stdout] help: consider returning the local binding `input`
[INFO] [stdout]   |
[INFO] [stdout] 1 | fn trim_me(input: &str) -> &str {
[INFO] [stdout] 2 ~     input
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> exercises/09_strings/strings3.rs:5:31
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn compose_me(input: &str) -> String {
[INFO] [stdout]   |    ----------                 ^^^^^^ expected `String`, found `()`
[INFO] [stdout]   |    |
[INFO] [stdout]   |    implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> exercises/09_strings/strings3.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 9 | fn replace_me(input: &str) -> String {
[INFO] [stdout]   |    ----------                 ^^^^^^ expected `String`, found `()`
[INFO] [stdout]   |    |
[INFO] [stdout]   |    implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "strings3" test) due to 3 previous errors
[INFO] [stdout] error[E0369]: cannot multiply `Result<i32, ParseIntError>` by `{integer}`
[INFO] [stdout]   --> exercises/13_error_handling/errors2.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     Ok(qty * cost_per_item + processing_fee)
[INFO] [stdout]    |        --- ^ ------------- {integer}
[INFO] [stdout]    |        |
[INFO] [stdout]    |        Result<i32, ParseIntError>
[INFO] [stdout]    |
[INFO] [stdout] note: `Result<i32, ParseIntError>` does not implement `Mul<{integer}>`
[INFO] [stdout]   --> /rustc/f8463896a9b36a04899c013bd8825a7fd29dd7a4/library/core/src/result.rs:557:0
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Result<i32, ParseIntError>` is defined in another crate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0369`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "errors2" test) due to 1 previous error
[INFO] [stderr] error: could not compile `exercises` (bin "generics1" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "af655e803446f5548a680cfdc62c793f15bb4be34e6b7d694dc2ff6c27c60f08", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af655e803446f5548a680cfdc62c793f15bb4be34e6b7d694dc2ff6c27c60f08", kill_on_drop: false }`
[INFO] [stdout] af655e803446f5548a680cfdc62c793f15bb4be34e6b7d694dc2ff6c27c60f08
