[INFO] cloning repository https://github.com/mreboland/rustTypesStrings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mreboland/rustTypesStrings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmreboland%2FrustTypesStrings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmreboland%2FrustTypesStrings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 93268bf785e18b962d7ffbd8bfa6b4d6029a7bdb [INFO] testing mreboland/rustTypesStrings against 1.59.0 for beta-1.60-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmreboland%2FrustTypesStrings" "/workspace/builds/worker-6/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/mreboland/rustTypesStrings on toolchain 1.59.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/mreboland/rustTypesStrings [INFO] finished tweaking git repo https://github.com/mreboland/rustTypesStrings [INFO] tweaked toml for git repo https://github.com/mreboland/rustTypesStrings written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/mreboland/rustTypesStrings already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 68401926371d59b87adef87d59a09463b3f6cc263d05b6c52d009a2880286e99 [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" "68401926371d59b87adef87d59a09463b3f6cc263d05b6c52d009a2880286e99", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "68401926371d59b87adef87d59a09463b3f6cc263d05b6c52d009a2880286e99", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "68401926371d59b87adef87d59a09463b3f6cc263d05b6c52d009a2880286e99", kill_on_drop: false }` [INFO] [stdout] 68401926371d59b87adef87d59a09463b3f6cc263d05b6c52d009a2880286e99 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] a994ca8b994c407374ea8387419129f9cbd7fece591d7cae3be82cd0506c61eb [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" "a994ca8b994c407374ea8387419129f9cbd7fece591d7cae3be82cd0506c61eb", kill_on_drop: false }` [INFO] [stderr] Compiling types-strings v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0277]: the type `str` cannot be indexed by `{integer}` [INFO] [stdout] --> src/main.rs:75:5 [INFO] [stdout] | [INFO] [stdout] 75 | s[0] = 'c'; // error: the type `str` cannot be mutably indexed [INFO] [stdout] | ^^^^ string indices are ranges of `usize` [INFO] [stdout] | [INFO] [stdout] = help: the trait `SliceIndex` is not implemented for `{integer}` [INFO] [stdout] = note: you can use `.chars().nth()` or `.bytes().nth()` [INFO] [stdout] for more information, see chapter 8 in The Book: [INFO] [stdout] = note: required because of the requirements on the impl of `Index<{integer}>` for `str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0599]: no method named `push` found for reference `&str` in the current scope [INFO] [stdout] --> src/main.rs:76:7 [INFO] [stdout] | [INFO] [stdout] 76 | s.push('\n'); // error: no method named `push` found for type `&str` [INFO] [stdout] | ^^^^ method not found in `&str` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 2 previous errors [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0277, E0599. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0277`. [INFO] [stdout] [INFO] [stderr] error: could not compile `types-strings` due to 3 previous errors [INFO] running `Command { std: "docker" "inspect" "a994ca8b994c407374ea8387419129f9cbd7fece591d7cae3be82cd0506c61eb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "a994ca8b994c407374ea8387419129f9cbd7fece591d7cae3be82cd0506c61eb", kill_on_drop: false }` [INFO] [stdout] a994ca8b994c407374ea8387419129f9cbd7fece591d7cae3be82cd0506c61eb