[INFO] cloning repository https://github.com/mahimathacker/Rust-fundamentails
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mahimathacker/Rust-fundamentails" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmahimathacker%2FRust-fundamentails", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmahimathacker%2FRust-fundamentails'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 259d32a6d43e655a71919346148be8f2813b4dc1
[INFO] fixing mahimathacker/Rust-fundamentails against try#622891a4e29178280638a6b63a8908bde2c0c854+cargoflags=-Zfix-edition=start=2015 for pr-157817-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmahimathacker%2FRust-fundamentails" "/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/mahimathacker/Rust-fundamentails
[INFO] finished tweaking git repo https://github.com/mahimathacker/Rust-fundamentails
[INFO] tweaked toml for git repo https://github.com/mahimathacker/Rust-fundamentails written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mahimathacker/Rust-fundamentails on toolchain 622891a4e29178280638a6b63a8908bde2c0c854
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mahimathacker/Rust-fundamentails 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" "+622891a4e29178280638a6b63a8908bde2c0c854" "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:rw,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] 03370dffb7170a98ddfd5eab42976cba5ce6ddd8cc4595abc73daeaf7fcc71ce
[INFO] running `Command { std: "docker" "start" "03370dffb7170a98ddfd5eab42976cba5ce6ddd8cc4595abc73daeaf7fcc71ce", 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" "03370dffb7170a98ddfd5eab42976cba5ce6ddd8cc4595abc73daeaf7fcc71ce" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03370dffb7170a98ddfd5eab42976cba5ce6ddd8cc4595abc73daeaf7fcc71ce", 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=" "-e" "RUSTDOCFLAGS=" "-w" "/opt/rustwide/workdir" "--user" "0:0" "03370dffb7170a98ddfd5eab42976cba5ce6ddd8cc4595abc73daeaf7fcc71ce" "/opt/rustwide/cargo-home/bin/cargo" "+622891a4e29178280638a6b63a8908bde2c0c854" "fix" "--allow-no-vcs" "--allow-dirty" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zfix-edition=start=2015", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking lock_api v0.4.13
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking parking_lot_core v0.9.11
[INFO] [stderr]     Checking mio v1.0.4
[INFO] [stderr]     Checking socket2 v0.6.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.6
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]     Checking tokio v1.47.1
[INFO] [stderr]     Checking hello_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: comparison is useless due to type limits
[INFO] [stdout]  --> examples/if_else.rs:9:15
[INFO] [stdout]   |
[INFO] [stdout] 9 |     } else if x < 0 {
[INFO] [stdout]   |               ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0774]: `derive` may only be applied to `struct`s, `enum`s and `union`s
[INFO] [stdout]  --> examples/lifetime.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 |   #[derive(Debug)]
[INFO] [stdout]   |   ^^^^^^^^^^^^^^^^ not applicable here
[INFO] [stdout] ...
[INFO] [stdout] 6 | / fn longest_str<'a>(x: &'a str, y: &'a str) -> &'a str {
[INFO] [stdout] 7 | |     if x.len() > y.len() { x } else { y }
[INFO] [stdout] 8 | | }
[INFO] [stdout]   | |_- not a `struct`, `enum` or `union`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> examples/lifetime.rs:37:27
[INFO] [stdout]    |
[INFO] [stdout] 37 |     let s: &'static str = "rust".to_string(); //It will live for the entire program
[INFO] [stdout]    |            ------------   ^^^^^^^^^^^^^^^^^^ expected `&str`, found `String`
[INFO] [stdout]    |            |
[INFO] [stdout]    |            expected due to this
[INFO] [stdout]    |
[INFO] [stdout] help: try removing the method call
[INFO] [stdout]    |
[INFO] [stdout] 37 -     let s: &'static str = "rust".to_string(); //It will live for the entire program
[INFO] [stdout] 37 +     let s: &'static str = "rust"; //It will live for the entire program
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0774.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hello_rust` (example "lifetime") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0277]: the trait bound `u32: A` is not satisfied
[INFO] [stdout]   --> examples/trait_bounds.rs:31:7
[INFO] [stdout]    |
[INFO] [stdout] 31 |     a(u);
[INFO] [stdout]    |     - ^ the trait `A` is not implemented for `u32`
[INFO] [stdout]    |     |
[INFO] [stdout]    |     required by a bound introduced by this call
[INFO] [stdout]    |
[INFO] [stdout] help: the trait `A` is implemented for `i32`
[INFO] [stdout]   --> examples/trait_bounds.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | impl A for i32 {}
[INFO] [stdout]    | ^^^^^^^^^^^^^^
[INFO] [stdout] note: required by a bound in `a`
[INFO] [stdout]   --> examples/trait_bounds.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | fn a<T: A>(x: T) {}
[INFO] [stdout]    |         ^ required by this bound in `a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hello_rust` (example "trait_bounds") due to 1 previous error
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> examples/enum.rs:40:38
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let x: Result<i32, String> = Err("Not a number");
[INFO] [stdout]    |                                  --- ^^^^^^^^^^^^^^ expected `String`, found `&str`
[INFO] [stdout]    |                                  |
[INFO] [stdout]    |                                  arguments to this enum variant are incorrect
[INFO] [stdout]    |
[INFO] [stdout] help: the type constructed contains `&'static str` due to the type of the argument passed
[INFO] [stdout]   --> examples/enum.rs:40:34
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let x: Result<i32, String> = Err("Not a number");
[INFO] [stdout]    |                                  ^^^^--------------^
[INFO] [stdout]    |                                      |
[INFO] [stdout]    |                                      this argument influences the type of `Err`
[INFO] [stdout] note: tuple variant defined here
[INFO] [stdout]   --> /rustc/622891a4e29178280638a6b63a8908bde2c0c854/library/core/src/result.rs:566:4
[INFO] [stdout] help: try using a conversion method
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let x: Result<i32, String> = Err("Not a number".to_string());
[INFO] [stdout]    |                                                    ++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `hello_rust` (example "enum") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "03370dffb7170a98ddfd5eab42976cba5ce6ddd8cc4595abc73daeaf7fcc71ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03370dffb7170a98ddfd5eab42976cba5ce6ddd8cc4595abc73daeaf7fcc71ce", kill_on_drop: false }`
[INFO] [stdout] 03370dffb7170a98ddfd5eab42976cba5ce6ddd8cc4595abc73daeaf7fcc71ce
