[INFO] updating cached repository https://github.com/FreddieRidell/rust-minimal-reproduction
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1abf93730cded269044da4e871eec670d4c8d12a
[INFO] checking FreddieRidell/rust-minimal-reproduction against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFreddieRidell%2Frust-minimal-reproduction" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/FreddieRidell/rust-minimal-reproduction on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/FreddieRidell/rust-minimal-reproduction
[INFO] finished tweaking git repo https://github.com/FreddieRidell/rust-minimal-reproduction
[INFO] tweaked toml for git repo https://github.com/FreddieRidell/rust-minimal-reproduction written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/FreddieRidell/rust-minimal-reproduction already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ec71db9ae4750fdfa976d4a739496599d366c1babba30f50101b60854fb8b525
[INFO] running `"docker" "start" "-a" "ec71db9ae4750fdfa976d4a739496599d366c1babba30f50101b60854fb8b525"`
[INFO] [stderr]     Checking rust-minimal-reproduction v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0583]: file not found for module `foo`
[INFO] [stderr]  --> src/bar.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | mod foo;
[INFO] [stderr]   | ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: to create the module `foo`, create file "src/bar/foo.rs"
[INFO] [stderr] 
[INFO] [stderr] error[E0583]: file not found for module `foo`
[INFO] [stderr]  --> src/bar.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | mod foo;
[INFO] [stderr]   | ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = help: to create the module `foo`, create file "src/bar/foo.rs"
[INFO] [stderr] 
[INFO] [stderr] error[E0423]: expected value, found struct `String`
[INFO] [stderr]  --> src/bar.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     String.from(foo::make_string()).split("").rev().join("")
[INFO] [stderr]   |     ^^^^^^-----
[INFO] [stderr]   |     |
[INFO] [stderr]   |     help: use the path separator to refer to an item: `String::from`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `make_string` in module `foo`
[INFO] [stderr]  --> src/bar.rs:4:22
[INFO] [stderr]   |
[INFO] [stderr] 4 |     String.from(foo::make_string()).split("").rev().join("")
[INFO] [stderr]   |                      ^^^^^^^^^^^ not found in `foo`
[INFO] [stderr]   |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::foo::make_string;
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] error[E0423]: expected value, found struct `String`
[INFO] [stderr]  --> src/bar.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     String.from(foo::make_string()).split("").rev().join("")
[INFO] [stderr]   |     ^^^^^^-----
[INFO] [stderr]   |     |
[INFO] [stderr]   |     help: use the path separator to refer to an item: `String::from`
[INFO] [stderr] 
[INFO] [stderr] error[E0425]: cannot find function `make_string` in module `foo`
[INFO] [stderr]  --> src/bar.rs:4:22
[INFO] [stderr]   |
[INFO] [stderr] 4 |     String.from(foo::make_string()).split("").rev().join("")
[INFO] [stderr]   |                      ^^^^^^^^^^^ not found in `foo`
[INFO] [stderr]   |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::foo::make_string;
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the size for values of type `str` cannot be known at compilation time
[INFO] [stderr]    --> src/main.rs:5:5
[INFO] [stderr]     |
[INFO] [stderr] 5   |     println!("{}", foo::make_string());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::marker::Sized` is not implemented for `str`
[INFO] [stderr]     = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stderr]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the size for values of type `str` cannot be known at compilation time
[INFO] [stderr]  --> src/main.rs:5:20
[INFO] [stderr]   |
[INFO] [stderr] 5 |     println!("{}", foo::make_string());
[INFO] [stderr]   |                    ^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stderr]   |
[INFO] [stderr]   = help: the trait `std::marker::Sized` is not implemented for `str`
[INFO] [stderr]   = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stderr]   = note: the return type of a function must have a statically known size
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the size for values of type `str` cannot be known at compilation time
[INFO] [stderr]    --> src/main.rs:5:5
[INFO] [stderr]     |
[INFO] [stderr] 5   |     println!("{}", foo::make_string());
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::marker::Sized` is not implemented for `str`
[INFO] [stderr]     = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stderr]     = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the size for values of type `str` cannot be known at compilation time
[INFO] [stderr]  --> src/main.rs:5:20
[INFO] [stderr]   |
[INFO] [stderr] 5 |     println!("{}", foo::make_string());
[INFO] [stderr]   |                    ^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
[INFO] [stderr]   |
[INFO] [stderr]   = help: the trait `std::marker::Sized` is not implemented for `str`
[INFO] [stderr]   = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stderr]   = note: the return type of a function must have a statically known size
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]  --> src/foo.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn make_string() -> str {
[INFO] [stderr]   |                         --- expected `str` because of return type
[INFO] [stderr] 2 |     "lovely string"
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^ expected `str`, found `&str`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the size for values of type `str` cannot be known at compilation time
[INFO] [stderr]  --> src/foo.rs:1:25
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn make_string() -> str {
[INFO] [stderr]   |                         ^^^ doesn't have a size known at compile-time
[INFO] [stderr] 2 |     "lovely string"
[INFO] [stderr]   |     --------------- this returned value is of type `&'static str`
[INFO] [stderr]   |
[INFO] [stderr]   = help: the trait `std::marker::Sized` is not implemented for `str`
[INFO] [stderr]   = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stderr]   = note: the return type of a function must have a statically known size
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 7 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0308, E0423, E0425, E0583.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `rust-minimal-reproduction`.
[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] [stderr] error[E0308]: mismatched types
[INFO] [stderr]  --> src/foo.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn make_string() -> str {
[INFO] [stderr]   |                         --- expected `str` because of return type
[INFO] [stderr] 2 |     "lovely string"
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^ expected `str`, found `&str`
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the size for values of type `str` cannot be known at compilation time
[INFO] [stderr]  --> src/foo.rs:1:25
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn make_string() -> str {
[INFO] [stderr]   |                         ^^^ doesn't have a size known at compile-time
[INFO] [stderr] 2 |     "lovely string"
[INFO] [stderr]   |     --------------- this returned value is of type `&'static str`
[INFO] [stderr]   |
[INFO] [stderr]   = help: the trait `std::marker::Sized` is not implemented for `str`
[INFO] [stderr]   = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stderr]   = note: the return type of a function must have a statically known size
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 7 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0308, E0423, E0425, E0583.
[INFO] [stderr] For more information about an error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `rust-minimal-reproduction`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "ec71db9ae4750fdfa976d4a739496599d366c1babba30f50101b60854fb8b525"`
[INFO] running `"docker" "rm" "-f" "ec71db9ae4750fdfa976d4a739496599d366c1babba30f50101b60854fb8b525"`
[INFO] [stdout] ec71db9ae4750fdfa976d4a739496599d366c1babba30f50101b60854fb8b525
