[INFO] cloning repository https://github.com/thelumiereguy/Rust_Playground
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thelumiereguy/Rust_Playground" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthelumiereguy%2FRust_Playground", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthelumiereguy%2FRust_Playground'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c50fdb232e2edc8d78a8c5d7d838a9617cfc9891
[INFO] checking thelumiereguy/Rust_Playground against master#485ec3fbcc12fa14ef6596dabb125ad710499c9e for pr-157710
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthelumiereguy%2FRust_Playground" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/thelumiereguy/Rust_Playground
[INFO] finished tweaking git repo https://github.com/thelumiereguy/Rust_Playground
[INFO] tweaked toml for git repo https://github.com/thelumiereguy/Rust_Playground written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/thelumiereguy/Rust_Playground on toolchain 485ec3fbcc12fa14ef6596dabb125ad710499c9e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+485ec3fbcc12fa14ef6596dabb125ad710499c9e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/thelumiereguy/Rust_Playground 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" "+485ec3fbcc12fa14ef6596dabb125ad710499c9e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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@sha256:3a6becf2bc8dde7f3fa57ede90e4f284e72d296796fc446bbb1e2c7cc0530151" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 4dd58b5d0de23e61864a96abd2f6b7de0dbf07c740b2fc836b8ac4ae925489e3
[INFO] running `Command { std: "docker" "start" "4dd58b5d0de23e61864a96abd2f6b7de0dbf07c740b2fc836b8ac4ae925489e3", 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" "4dd58b5d0de23e61864a96abd2f6b7de0dbf07c740b2fc836b8ac4ae925489e3" "/opt/rustwide/cargo-home/bin/cargo" "+485ec3fbcc12fa14ef6596dabb125ad710499c9e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4dd58b5d0de23e61864a96abd2f6b7de0dbf07c740b2fc836b8ac4ae925489e3", 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" "4dd58b5d0de23e61864a96abd2f6b7de0dbf07c740b2fc836b8ac4ae925489e3" "/opt/rustwide/cargo-home/bin/cargo" "+485ec3fbcc12fa14ef6596dabb125ad710499c9e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking rust_demo v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: cannot find `detect` in `std`
[INFO] [stdout]  --> src/traits/traits.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::detect::__is_feature_detected::sha;
[INFO] [stdout]   |          ^^^^^^ could not find `detect` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find `detect` in `std`
[INFO] [stdout]  --> src/traits/traits.rs:1:10
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::detect::__is_feature_detected::sha;
[INFO] [stdout]   |          ^^^^^^ could not find `detect` in `std`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::str;
[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 import: `crate::variables::vars`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::variables::vars;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]  --> src/moving_borrowing/moving_borrowing.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | /     /**
[INFO] [stdout] 5 | |      *In Rust, all variables which are assigned using a let statement are immutable unless otherwise specified.
[INFO] [stdout] 6 | |      *Immutable is a fancy term which means:
[INFO] [stdout] ... |
[INFO] [stdout] 9 | |      */
[INFO] [stdout]   | |_______^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]   |
[INFO] [stdout]   = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]   = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::str;
[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 import: `crate::variables::vars`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::variables::vars;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]  --> src/moving_borrowing/moving_borrowing.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | /     /**
[INFO] [stdout] 5 | |      *In Rust, all variables which are assigned using a let statement are immutable unless otherwise specified.
[INFO] [stdout] 6 | |      *Immutable is a fancy term which means:
[INFO] [stdout] ... |
[INFO] [stdout] 9 | |      */
[INFO] [stdout]   | |_______^ rustdoc does not generate documentation for macro invocations
[INFO] [stdout]   |
[INFO] [stdout]   = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout]   = note: `#[warn(unused_doc_comments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: cannot multiply `{integer}` by `f64`
[INFO] [stdout]   --> src/traits/traits.rs:44:11
[INFO] [stdout]    |
[INFO] [stdout] 44 |         2 * std::f64::consts::PI * self.radius
[INFO] [stdout]    |           ^ no implementation for `{integer} * f64`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Mul<f64>` is not implemented for `{integer}`
[INFO] [stdout] help: the following other types implement trait `Mul<Rhs>`
[INFO] [stdout]   --> /rustc/485ec3fbcc12fa14ef6596dabb125ad710499c9e/library/core/src/ops/arith.rs:344:8
[INFO] [stdout]    |
[INFO] [stdout]    = note: `f64` implements `Mul`
[INFO] [stdout]   ::: /rustc/485ec3fbcc12fa14ef6596dabb125ad710499c9e/library/core/src/ops/arith.rs:359:0
[INFO] [stdout]    |
[INFO] [stdout]    = note: in this macro invocation
[INFO] [stdout]   --> /rustc/485ec3fbcc12fa14ef6596dabb125ad710499c9e/library/core/src/internal_macros.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout]    = note: `&f64` implements `Mul<f64>`
[INFO] [stdout]    = note: this error originates in the macro `mul_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: cannot multiply `{integer}` by `f64`
[INFO] [stdout]   --> src/traits/traits.rs:44:11
[INFO] [stdout]    |
[INFO] [stdout] 44 |         2 * std::f64::consts::PI * self.radius
[INFO] [stdout]    |           ^ no implementation for `{integer} * f64`
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Mul<f64>` is not implemented for `{integer}`
[INFO] [stdout] help: the following other types implement trait `Mul<Rhs>`
[INFO] [stdout]   --> /rustc/485ec3fbcc12fa14ef6596dabb125ad710499c9e/library/core/src/ops/arith.rs:344:8
[INFO] [stdout]    |
[INFO] [stdout]    = note: `f64` implements `Mul`
[INFO] [stdout]   ::: /rustc/485ec3fbcc12fa14ef6596dabb125ad710499c9e/library/core/src/ops/arith.rs:359:0
[INFO] [stdout]    |
[INFO] [stdout]    = note: in this macro invocation
[INFO] [stdout]   --> /rustc/485ec3fbcc12fa14ef6596dabb125ad710499c9e/library/core/src/internal_macros.rs:22:8
[INFO] [stdout]    |
[INFO] [stdout]    = note: `&f64` implements `Mul<f64>`
[INFO] [stdout]    = note: this error originates in the macro `mul_impl` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/loops/loops.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     for x in 0..10 {}
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/loops/loops.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     for x in 0..10 {}
[INFO] [stdout]    |         ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/moving_borrowing/moving_borrowing.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let mut our_player = Player
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/moving_borrowing/moving_borrowing.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let mut our_player = Player
[INFO] [stdout]    |         ----^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name1_ref`
[INFO] [stdout]   --> src/moving_borrowing/moving_borrowing.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let name1_ref = &name1;
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_name1_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name1_ref`
[INFO] [stdout]   --> src/moving_borrowing/moving_borrowing.rs:22:9
[INFO] [stdout]    |
[INFO] [stdout] 22 |     let name1_ref = &name1;
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_name1_ref`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `name1` is never read
[INFO] [stdout]   --> src/moving_borrowing/moving_borrowing.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut name1 = "Thomas";
[INFO] [stdout]    |                     ^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] 15 |     name1 = "Rose";
[INFO] [stdout]    |     -------------- `name1` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `name1` is never read
[INFO] [stdout]   --> src/moving_borrowing/moving_borrowing.rs:14:21
[INFO] [stdout]    |
[INFO] [stdout] 14 |     let mut name1 = "Thomas";
[INFO] [stdout]    |                     ^^^^^^^^ this value is reassigned later and never used
[INFO] [stdout] 15 |     name1 = "Rose";
[INFO] [stdout]    |     -------------- `name1` is overwritten here before the previous value is read
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433.
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_demo` (bin "rust_demo" test) due to 2 previous errors; 7 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rust_demo` (bin "rust_demo") due to 2 previous errors; 7 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "4dd58b5d0de23e61864a96abd2f6b7de0dbf07c740b2fc836b8ac4ae925489e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4dd58b5d0de23e61864a96abd2f6b7de0dbf07c740b2fc836b8ac4ae925489e3", kill_on_drop: false }`
[INFO] [stdout] 4dd58b5d0de23e61864a96abd2f6b7de0dbf07c740b2fc836b8ac4ae925489e3
