[INFO] cloning repository https://github.com/TheAlphaKarp/rust_language_practice
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TheAlphaKarp/rust_language_practice" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheAlphaKarp%2Frust_language_practice", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheAlphaKarp%2Frust_language_practice'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 123d73356a78ac78770279a83a81222be14c2365
[INFO] checking TheAlphaKarp/rust_language_practice against master#af3c6e733a40e671550e0f0f5aeecaa13772ba56 for pr-74989
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheAlphaKarp%2Frust_language_practice" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TheAlphaKarp/rust_language_practice on toolchain af3c6e733a40e671550e0f0f5aeecaa13772ba56
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TheAlphaKarp/rust_language_practice
[INFO] finished tweaking git repo https://github.com/TheAlphaKarp/rust_language_practice
[INFO] tweaked toml for git repo https://github.com/TheAlphaKarp/rust_language_practice written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/TheAlphaKarp/rust_language_practice already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 06247050c87ec2663f460f981c671f854f70d5a57dd0c8104318e8153aa5f0d2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "06247050c87ec2663f460f981c671f854f70d5a57dd0c8104318e8153aa5f0d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06247050c87ec2663f460f981c671f854f70d5a57dd0c8104318e8153aa5f0d2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06247050c87ec2663f460f981c671f854f70d5a57dd0c8104318e8153aa5f0d2", kill_on_drop: false }`
[INFO] [stdout] 06247050c87ec2663f460f981c671f854f70d5a57dd0c8104318e8153aa5f0d2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+af3c6e733a40e671550e0f0f5aeecaa13772ba56" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eaab0d37016814adda260a2bef6f75436ebbbd9418f79add8a09dcc54a82064e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "eaab0d37016814adda260a2bef6f75436ebbbd9418f79add8a09dcc54a82064e", kill_on_drop: false }`
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking Raptor v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `age`
[INFO] [stdout]  --> src/bin/variables.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let age = 32;
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_age`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0435]: attempt to use a non-constant value in a constant
[INFO] [stdout]   --> src/bin/ownership.rs:30:26
[INFO] [stdout]    |
[INFO] [stdout] 30 |     const BYTES: &[u8] = s.as_bytes();
[INFO] [stdout]    |                          ^ non-constant value
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]  --> src/bin/variables.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let mut name = "Karp";
[INFO] [stdout]   |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]  --> src/bin/variables.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let (x,y,z) = tup;
[INFO] [stdout]   |            ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]  --> src/bin/variables.rs:7:14
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let (x,y,z) = tup;
[INFO] [stdout]   |              ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/variables.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let mut name = "Karp";
[INFO] [stdout]   |         ----^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `BIRTHDAY`
[INFO] [stdout]  --> src/bin/variables.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     const BIRTHDAY: &str = "1998";
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/bin/functions.rs:10:41
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn add(number_1: i32, number_2: i32) -> i32 {
[INFO] [stdout]    |    ---                                  ^^^ expected `i32`, found `()`
[INFO] [stdout]    |    |
[INFO] [stdout]    |    implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 11 |     // statement -> no return
[INFO] [stdout] 12 |     number_1 + number_2;
[INFO] [stdout]    |                        - help: consider removing this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error[E0435]: attempt to use a non-constant value in a constant
[INFO] [stdout]   --> src/bin/ownership.rs:30:26
[INFO] [stdout]    |
[INFO] [stdout] 30 |     const BYTES: &[u8] = s.as_bytes();
[INFO] [stdout]    |                          ^ non-constant value
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0422]: cannot find struct, variant or union type `Rectange` in this scope
[INFO] [stdout]   --> src/bin/structs.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 2  | struct Rectangle {
[INFO] [stdout]    | ---------------- similarly named struct `Rectangle` defined here
[INFO] [stdout] ...
[INFO] [stdout] 19 |         Rectange {
[INFO] [stdout]    |         ^^^^^^^^ help: a struct with a similar name exists: `Rectangle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `Raptor`.
[INFO] [stdout] error[E0425]: cannot find value `bytes` in this scope
[INFO] [stdout]   --> src/bin/ownership.rs:32:23
[INFO] [stdout]    |
[INFO] [stdout] 32 |     for (i, &item) in bytes.iter().enumerate() {
[INFO] [stdout]    |                       ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0422`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0435.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `bytes` in this scope
[INFO] [stdout]   --> src/bin/ownership.rs:32:23
[INFO] [stdout]    |
[INFO] [stdout] 32 |     for (i, &item) in bytes.iter().enumerate() {
[INFO] [stdout]    |                       ^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]   --> src/bin/control_flow.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     for number in (1..4).rev() {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0435.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stdout] error[E0422]: cannot find struct, variant or union type `Rectange` in this scope
[INFO] [stdout]   --> src/bin/structs.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 2  | struct Rectangle {
[INFO] [stdout]    | ---------------- similarly named struct `Rectangle` defined here
[INFO] [stdout] ...
[INFO] [stdout] 19 |         Rectange {
[INFO] [stdout]    |         ^^^^^^^^ help: a struct with a similar name exists: `Rectangle`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0422`.
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/bin/functions.rs:10:41
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn add(number_1: i32, number_2: i32) -> i32 {
[INFO] [stdout]    |    ---                                  ^^^ expected `i32`, found `()`
[INFO] [stdout]    |    |
[INFO] [stdout]    |    implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 11 |     // statement -> no return
[INFO] [stdout] 12 |     number_1 + number_2;
[INFO] [stdout]    |                        - help: consider removing this semicolon
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `age`
[INFO] [stdout]  --> src/bin/variables.rs:2:9
[INFO] [stdout]   |
[INFO] [stdout] 2 |     let age = 32;
[INFO] [stdout]   |         ^^^ help: if this is intentional, prefix it with an underscore: `_age`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]  --> src/bin/variables.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let mut name = "Karp";
[INFO] [stdout]   |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `y`
[INFO] [stdout]  --> src/bin/variables.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let (x,y,z) = tup;
[INFO] [stdout]   |            ^ help: if this is intentional, prefix it with an underscore: `_y`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `z`
[INFO] [stdout]  --> src/bin/variables.rs:7:14
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let (x,y,z) = tup;
[INFO] [stdout]   |              ^ help: if this is intentional, prefix it with an underscore: `_z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/variables.rs:3:9
[INFO] [stdout]   |
[INFO] [stdout] 3 |     let mut name = "Karp";
[INFO] [stdout]   |         ----^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `number`
[INFO] [stdout]   --> src/bin/control_flow.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 |     for number in (1..4).rev() {
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_number`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "eaab0d37016814adda260a2bef6f75436ebbbd9418f79add8a09dcc54a82064e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eaab0d37016814adda260a2bef6f75436ebbbd9418f79add8a09dcc54a82064e", kill_on_drop: false }`
[INFO] [stdout] eaab0d37016814adda260a2bef6f75436ebbbd9418f79add8a09dcc54a82064e
