[INFO] cloning repository https://github.com/FreddieRidell/rust-minimal-reproduction [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/FreddieRidell/rust-minimal-reproduction" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFreddieRidell%2Frust-minimal-reproduction", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFreddieRidell%2Frust-minimal-reproduction'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1abf93730cded269044da4e871eec670d4c8d12a [INFO] testing FreddieRidell/rust-minimal-reproduction against beta-2020-07-24 for beta-1.46-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFreddieRidell%2Frust-minimal-reproduction" "/workspace/builds/worker-9/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/FreddieRidell/rust-minimal-reproduction on toolchain beta-2020-07-24 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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-9/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 `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 26dfd133948f5a1f8cdc52df510e944609050f23c5f89ff06fdc6d4c565392f0 [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" "26dfd133948f5a1f8cdc52df510e944609050f23c5f89ff06fdc6d4c565392f0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "26dfd133948f5a1f8cdc52df510e944609050f23c5f89ff06fdc6d4c565392f0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "26dfd133948f5a1f8cdc52df510e944609050f23c5f89ff06fdc6d4c565392f0", kill_on_drop: false }` [INFO] [stdout] 26dfd133948f5a1f8cdc52df510e944609050f23c5f89ff06fdc6d4c565392f0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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=warn" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 342ff8fa790f898d7ac546586edd30b09d875aa28f992c9bbe782fa3d5426c45 [INFO] running `Command { std: "docker" "start" "-a" "342ff8fa790f898d7ac546586edd30b09d875aa28f992c9bbe782fa3d5426c45", kill_on_drop: false }` [INFO] [stderr] Compiling rust-minimal-reproduction v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0583]: file not found for module `foo` [INFO] [stdout] --> src/bar.rs:1:1 [INFO] [stdout] | [INFO] [stdout] 1 | mod foo; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = help: to create the module `foo`, create file "src/bar/foo.rs" [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0423]: expected value, found struct `String` [INFO] [stdout] --> src/bar.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | String.from(foo::make_string()).split("").rev().join("") [INFO] [stdout] | ^^^^^^----- [INFO] [stdout] | | [INFO] [stdout] | help: use the path separator to refer to an item: `String::from` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0425]: cannot find function `make_string` in module `foo` [INFO] [stdout] --> src/bar.rs:4:22 [INFO] [stdout] | [INFO] [stdout] 4 | String.from(foo::make_string()).split("").rev().join("") [INFO] [stdout] | ^^^^^^^^^^^ not found in `foo` [INFO] [stdout] | [INFO] [stdout] help: consider importing this function [INFO] [stdout] | [INFO] [stdout] 1 | use crate::foo::make_string; [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the size for values of type `str` cannot be known at compilation time [INFO] [stdout] --> src/main.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | println!("{}", foo::make_string()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time [INFO] [stdout] | [INFO] [stdout] = help: the trait `std::marker::Sized` is not implemented for `str` [INFO] [stdout] = note: to learn more, visit [INFO] [stdout] = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info) [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the size for values of type `str` cannot be known at compilation time [INFO] [stdout] --> src/main.rs:5:20 [INFO] [stdout] | [INFO] [stdout] 5 | println!("{}", foo::make_string()); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time [INFO] [stdout] | [INFO] [stdout] = help: the trait `std::marker::Sized` is not implemented for `str` [INFO] [stdout] = note: to learn more, visit [INFO] [stdout] = note: the return type of a function must have a statically known size [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0308]: mismatched types [INFO] [stdout] --> src/foo.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn make_string() -> str { [INFO] [stdout] | --- expected `str` because of return type [INFO] [stdout] 2 | "lovely string" [INFO] [stdout] | ^^^^^^^^^^^^^^^ expected `str`, found `&str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0277]: the size for values of type `str` cannot be known at compilation time [INFO] [stdout] --> src/foo.rs:1:25 [INFO] [stdout] | [INFO] [stdout] 1 | pub fn make_string() -> str { [INFO] [stdout] | ^^^ doesn't have a size known at compile-time [INFO] [stdout] 2 | "lovely string" [INFO] [stdout] | --------------- this returned value is of type `&'static str` [INFO] [stdout] | [INFO] [stdout] = help: the trait `std::marker::Sized` is not implemented for `str` [INFO] [stdout] = note: to learn more, visit [INFO] [stdout] = note: the return type of a function must have a statically known size [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 7 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0277, E0308, E0423, E0425, E0583. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `rust-minimal-reproduction`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `Command { std: "docker" "inspect" "342ff8fa790f898d7ac546586edd30b09d875aa28f992c9bbe782fa3d5426c45", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "342ff8fa790f898d7ac546586edd30b09d875aa28f992c9bbe782fa3d5426c45", kill_on_drop: false }` [INFO] [stdout] 342ff8fa790f898d7ac546586edd30b09d875aa28f992c9bbe782fa3d5426c45