[INFO] updating cached repository aleksandrpak/rust-talk [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/aleksandrpak/rust-talk [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/aleksandrpak/rust-talk" "work/ex/beta-1.38-1/sources/1.37.0/gh/aleksandrpak/rust-talk"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/aleksandrpak/rust-talk'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/aleksandrpak/rust-talk" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aleksandrpak/rust-talk"` [INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aleksandrpak/rust-talk'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] ed25c7d85040ef552d038547bcd9f4d6476184ca [INFO] sha for GitHub repo aleksandrpak/rust-talk: ed25c7d85040ef552d038547bcd9f4d6476184ca [INFO] validating manifest of aleksandrpak/rust-talk on toolchain 1.37.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of aleksandrpak/rust-talk on toolchain beta-2019-08-13 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing aleksandrpak/rust-talk [INFO] finished frobbing aleksandrpak/rust-talk [INFO] frobbed toml for aleksandrpak/rust-talk written to work/ex/beta-1.38-1/sources/1.37.0/gh/aleksandrpak/rust-talk/Cargo.toml [INFO] started frobbing aleksandrpak/rust-talk [INFO] finished frobbing aleksandrpak/rust-talk [INFO] frobbed toml for aleksandrpak/rust-talk written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/aleksandrpak/rust-talk/Cargo.toml [INFO] crate aleksandrpak/rust-talk already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing aleksandrpak/rust-talk against 1.37.0 for beta-1.38-1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/aleksandrpak/rust-talk:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"` [INFO] [stdout] 488c3333078b85d31afe3713c6828f1fed95e83c66d70e00b7e92e8d2a541fe1 [INFO] running `"docker" "start" "-a" "488c3333078b85d31afe3713c6828f1fed95e83c66d70e00b7e92e8d2a541fe1"` [INFO] [stderr] Compiling rust-talk v0.1.0 (/opt/crater/workdir) [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.59s [INFO] running `"docker" "inspect" "488c3333078b85d31afe3713c6828f1fed95e83c66d70e00b7e92e8d2a541fe1"` [INFO] running `"docker" "rm" "-f" "488c3333078b85d31afe3713c6828f1fed95e83c66d70e00b7e92e8d2a541fe1"` [INFO] [stdout] 488c3333078b85d31afe3713c6828f1fed95e83c66d70e00b7e92e8d2a541fe1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-7/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/aleksandrpak/rust-talk:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"` [INFO] [stdout] 596072f0865c69ebf98116c2b061025894b7318154800c01c5ac192c4d21ee99 [INFO] running `"docker" "start" "-a" "596072f0865c69ebf98116c2b061025894b7318154800c01c5ac192c4d21ee99"` [INFO] [stderr] Compiling rust-talk v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> examples/mut.rs:22:9 [INFO] [stderr] | [INFO] [stderr] 22 | let mut foo = Foo::new(); [INFO] [stderr] | ----^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] error[E0594]: cannot assign to `bar.counter` which is behind a `&` reference [INFO] [stderr] --> examples/mut.rs:27:9 [INFO] [stderr] | [INFO] [stderr] 26 | let mut bar = foo.get_bar(); [INFO] [stderr] | ------- help: consider changing this to be a mutable reference: `&mut Bar` [INFO] [stderr] 27 | bar.counter += 1; [INFO] [stderr] | ^^^^^^^^^^^^^^^^ `bar` is a `&` reference, so the data it refers to cannot be written [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] error: Could not compile `rust-talk`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error[E0382]: borrow of moved value: `vec` [INFO] [stderr] --> examples/for.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 2 | let mut vec = vec![1, 2, 3]; [INFO] [stderr] | ------- move occurs because `vec` has type `std::vec::Vec`, which does not implement the `Copy` trait [INFO] [stderr] 3 | [INFO] [stderr] 4 | for item in vec { [INFO] [stderr] | --- [INFO] [stderr] | | [INFO] [stderr] | value moved here [INFO] [stderr] | help: consider borrowing to avoid moving into the for loop: `&vec` [INFO] [stderr] ... [INFO] [stderr] 8 | vec[0] = 0; [INFO] [stderr] | ^^^ value borrowed here after move [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0382`. [INFO] [stderr] error: Could not compile `rust-talk`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error[E0308]: mismatched types [INFO] [stderr] --> examples/string_first.rs:13:24 [INFO] [stderr] | [INFO] [stderr] 13 | let foo = Foo::new("bar"); [INFO] [stderr] | ^^^^^ [INFO] [stderr] | | [INFO] [stderr] | expected struct `std::string::String`, found reference [INFO] [stderr] | help: try using a conversion method: `"bar".to_string()` [INFO] [stderr] | [INFO] [stderr] = note: expected type `std::string::String` [INFO] [stderr] found type `&'static str` [INFO] [stderr] [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0308`. [INFO] [stderr] error: Could not compile `rust-talk`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "596072f0865c69ebf98116c2b061025894b7318154800c01c5ac192c4d21ee99"` [INFO] running `"docker" "rm" "-f" "596072f0865c69ebf98116c2b061025894b7318154800c01c5ac192c4d21ee99"` [INFO] [stdout] 596072f0865c69ebf98116c2b061025894b7318154800c01c5ac192c4d21ee99