[INFO] fetching crate mylex 0.1.1... [INFO] testing mylex-0.1.1 against 1.60.0 for beta-1.61-1 [INFO] extracting crate mylex 0.1.1 into /workspace/builds/worker-112/source [INFO] validating manifest of crates.io crate mylex 0.1.1 on toolchain 1.60.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking crates.io crate mylex 0.1.1 [INFO] finished tweaking crates.io crate mylex 0.1.1 [INFO] tweaked toml for crates.io crate mylex 0.1.1 written to /workspace/builds/worker-112/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d41c1db657a0b91f25d1647429bfb957accf08256157ba5ce005eeff8a96a254 [INFO] running `Command { std: "docker" "start" "-a" "d41c1db657a0b91f25d1647429bfb957accf08256157ba5ce005eeff8a96a254", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d41c1db657a0b91f25d1647429bfb957accf08256157ba5ce005eeff8a96a254", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d41c1db657a0b91f25d1647429bfb957accf08256157ba5ce005eeff8a96a254", kill_on_drop: false }` [INFO] [stdout] d41c1db657a0b91f25d1647429bfb957accf08256157ba5ce005eeff8a96a254 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-112/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] d269b32ba24a7be1766568f3ca6b0c03879b0f1452cd5d2043090883caba2d50 [INFO] running `Command { std: "docker" "start" "-a" "d269b32ba24a7be1766568f3ca6b0c03879b0f1452cd5d2043090883caba2d50", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling mylex v0.1.1 (/opt/rustwide/workdir) [INFO] [stdout] warning: use of deprecated associated function `std::array::IntoIter::::new`: use `IntoIterator::into_iter` instead [INFO] [stdout] --> src/lexer.rs:64:45 [INFO] [stdout] | [INFO] [stdout] 64 | for (i, t) in std::array::IntoIter::new(items) { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated associated function `std::array::IntoIter::::new`: use `IntoIterator::into_iter` instead [INFO] [stdout] --> src/lexer.rs:75:45 [INFO] [stdout] | [INFO] [stdout] 75 | for (i, t) in std::array::IntoIter::new(items) { [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `last` [INFO] [stdout] --> src/string_slicer.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | last: usize, [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function is never used: `slice` [INFO] [stdout] --> src/string_slicer.rs:20:12 [INFO] [stdout] | [INFO] [stdout] 20 | pub fn slice(&mut self) -> &str { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel [INFO] [stdout] --> src/lib.rs:1:12 [INFO] [stdout] | [INFO] [stdout] 1 | #![feature(array_zip)] [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to previous error; 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0554`. [INFO] [stdout] [INFO] [stderr] error: could not compile `mylex` due to 2 previous errors; 4 warnings emitted [INFO] running `Command { std: "docker" "inspect" "d269b32ba24a7be1766568f3ca6b0c03879b0f1452cd5d2043090883caba2d50", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d269b32ba24a7be1766568f3ca6b0c03879b0f1452cd5d2043090883caba2d50", kill_on_drop: false }` [INFO] [stdout] d269b32ba24a7be1766568f3ca6b0c03879b0f1452cd5d2043090883caba2d50