[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 try#3a4cb0edb4040379c037e06efeb5409e44be7b77 for pr-146377
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDKolaya%2Frustling" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
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[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-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/DKolaya/rustling on toolchain 3a4cb0edb4040379c037e06efeb5409e44be7b77
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4cb0edb4040379c037e06efeb5409e44be7b77" "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" "+3a4cb0edb4040379c037e06efeb5409e44be7b77" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4cb0edb4040379c037e06efeb5409e44be7b77" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f5640a36a1d45edfe12f060634dc1fdebf41ee6092f515c54b6cbfa83b92b22
[INFO] running `Command { std: "docker" "start" "-a" "5f5640a36a1d45edfe12f060634dc1fdebf41ee6092f515c54b6cbfa83b92b22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f5640a36a1d45edfe12f060634dc1fdebf41ee6092f515c54b6cbfa83b92b22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f5640a36a1d45edfe12f060634dc1fdebf41ee6092f515c54b6cbfa83b92b22", kill_on_drop: false }`
[INFO] [stdout] 5f5640a36a1d45edfe12f060634dc1fdebf41ee6092f515c54b6cbfa83b92b22
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4cb0edb4040379c037e06efeb5409e44be7b77" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1cb42a66cb7e142074f00b7feb1ba02e3bba1e8997468e8b8d52cb509f53cd43
[INFO] running `Command { std: "docker" "start" "-a" "1cb42a66cb7e142074f00b7feb1ba02e3bba1e8997468e8b8d52cb509f53cd43", kill_on_drop: false }`
[INFO] [stderr]     Checking exercises v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0382]: borrow of partially moved value: `optional_point`
[INFO] [stdout]   --> exercises/12_options/options3.rs:16:16
[INFO] [stdout]    |
[INFO] [stdout] 12 |         Some(p) => println!("Co-ordinates are {},{}", p.x, p.y),
[INFO] [stdout]    |              - value partially moved here
[INFO] [stdout] ...
[INFO] [stdout] 16 |     println!("{optional_point:?}"); // Don't change this line.
[INFO] [stdout]    |                ^^^^^^^^^^^^^^ value borrowed here after partial move
[INFO] [stdout]    |
[INFO] [stdout]    = note: partial move occurs because value has type `Point`, which does not implement the `Copy` trait
[INFO] [stdout]    = note: this error originates in the macro `$crate::format_args_nl` which comes from the expansion of the macro `println` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] help: borrow this binding in the pattern to avoid moving the value
[INFO] [stdout]    |
[INFO] [stdout] 12 |         Some(ref p) => println!("Co-ordinates are {},{}", p.x, p.y),
[INFO] [stdout]    |              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0382`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "options3") due to 1 previous error
[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] [stderr] warning: build failed, waiting for other jobs to finish...
[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 E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "strings3") due to 3 previous errors
[INFO] [stdout] error[E0425]: cannot find value `child_numbers` in this scope
[INFO] [stdout]   --> exercises/19_smart_pointers/arc1.rs:35:28
[INFO] [stdout]    |
[INFO] [stdout] 35 |             let sum: u32 = child_numbers.iter().filter(|&&n| n % 8 == offset).sum();
[INFO] [stdout]    |                            ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> exercises/23_conversions/from_str.rs:44:29
[INFO] [stdout]    |
[INFO] [stdout] 44 |     fn from_str(s: &str) -> Result<Self, Self::Err> {}
[INFO] [stdout]    |        --------             ^^^^^^^^^^^^^^^^^^^^^^^ expected `Result<Person, ParsePersonError>`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note:   expected enum `Result<Person, ParsePersonError>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "from_str" test) due to 1 previous error
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error: unused import: `sync::Arc`
[INFO] [stdout]   --> exercises/19_smart_pointers/arc1.rs:20:11
[INFO] [stdout]    |
[INFO] [stdout] 20 | use std::{sync::Arc, thread};
[INFO] [stdout]    |           ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> exercises/19_smart_pointers/arc1.rs:19:11
[INFO] [stdout]    |
[INFO] [stdout] 19 | #![forbid(unused_imports)]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "arc1" test) due to 2 previous errors
[INFO] [stdout] error[E0277]: cannot divide `f64` by `usize`
[INFO] [stdout]  --> exercises/23_conversions/using_as.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 |     total / values.len()
[INFO] [stdout]   |           ^ no implementation for `f64 / usize`
[INFO] [stdout]   |
[INFO] [stdout]   = help: the trait `Div<usize>` is not implemented for `f64`
[INFO] [stdout] help: the following other types implement trait `Div<Rhs>`
[INFO] [stdout]  --> /rustc/3a4cb0edb4040379c037e06efeb5409e44be7b77/library/core/src/ops/arith.rs:526:0
[INFO] [stdout]   |
[INFO] [stdout]   = note: `&f64` implements `Div<f64>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `&f64` implements `Div`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `f64` implements `Div<&f64>`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `f64` implements `Div`
[INFO] [stdout]   = note: this error originates in the macro `div_impl_float` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "using_as") due to 1 previous error
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]  --> exercises/09_strings/strings2.rs:9:24
[INFO] [stdout]   |
[INFO] [stdout] 9 |     if is_a_color_word(word) {
[INFO] [stdout]   |        --------------- ^^^^ expected `&str`, found `String`
[INFO] [stdout]   |        |
[INFO] [stdout]   |        arguments to this function are incorrect
[INFO] [stdout]   |
[INFO] [stdout] note: function defined here
[INFO] [stdout]  --> exercises/09_strings/strings2.rs:2:4
[INFO] [stdout]   |
[INFO] [stdout] 2 | fn is_a_color_word(attempt: &str) -> bool {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^ -------------
[INFO] [stdout] help: consider borrowing here
[INFO] [stdout]   |
[INFO] [stdout] 9 |     if is_a_color_word(&word) {
[INFO] [stdout]   |                        +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_ref` found for type parameter `T` in the current scope
[INFO] [stdout]  --> exercises/23_conversions/as_ref_mut.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn byte_counter<T>(arg: T) -> usize {
[INFO] [stdout]   |                 - method `as_ref` not found for this type parameter
[INFO] [stdout] 9 |     arg.as_ref().len()
[INFO] [stdout]   |         ^^^^^^ method not found in `T`
[INFO] [stdout]   |
[INFO] [stdout]   = help: items from traits can only be used if the type parameter is bounded by the trait
[INFO] [stdout] help: the following trait defines an item `as_ref`, perhaps you need to restrict type parameter `T` with it:
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn byte_counter<T: AsRef</* T */>>(arg: T) -> usize {
[INFO] [stdout]   |                  ++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_ref` found for type parameter `T` in the current scope
[INFO] [stdout]   --> exercises/23_conversions/as_ref_mut.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn char_counter<T>(arg: T) -> usize {
[INFO] [stdout]    |                 - method `as_ref` not found for this type parameter
[INFO] [stdout] 15 |     arg.as_ref().chars().count()
[INFO] [stdout]    |         ^^^^^^ method not found in `T`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the type parameter is bounded by the trait
[INFO] [stdout] help: the following trait defines an item `as_ref`, perhaps you need to restrict type parameter `T` with it:
[INFO] [stdout]    |
[INFO] [stdout] 14 | fn char_counter<T: AsRef</* T */>>(arg: T) -> usize {
[INFO] [stdout]    |                  ++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `arg`
[INFO] [stdout]   --> exercises/23_conversions/as_ref_mut.rs:20:14
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn num_sq<T>(arg: &mut T) {
[INFO] [stdout]    |              ^^^ help: if this is intentional, prefix it with an underscore: `_arg`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0599`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `exercises` (bin "strings2") due to 1 previous error
[INFO] [stderr] error: could not compile `exercises` (bin "as_ref_mut") due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "1cb42a66cb7e142074f00b7feb1ba02e3bba1e8997468e8b8d52cb509f53cd43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cb42a66cb7e142074f00b7feb1ba02e3bba1e8997468e8b8d52cb509f53cd43", kill_on_drop: false }`
[INFO] [stdout] 1cb42a66cb7e142074f00b7feb1ba02e3bba1e8997468e8b8d52cb509f53cd43
