[INFO] cloning repository https://github.com/iyuroch/rust_word_counter [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iyuroch/rust_word_counter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiyuroch%2Frust_word_counter"` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiyuroch%2Frust_word_counter'... [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 12ee883c7ff016ca88ac16f4d8e9fc7a7682612c [INFO] checking iyuroch/rust_word_counter against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiyuroch%2Frust_word_counter" "/workspace/builds/worker-3/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/iyuroch/rust_word_counter on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd [INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/iyuroch/rust_word_counter [INFO] finished tweaking git repo https://github.com/iyuroch/rust_word_counter [INFO] tweaked toml for git repo https://github.com/iyuroch/rust_word_counter written to /workspace/builds/worker-3/source/Cargo.toml [INFO] crate git repo https://github.com/iyuroch/rust_word_counter already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "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] 52db1352bbbe639503723e709cc6149b295e35739b469ffafe404a018fd8a8a4 [INFO] running `"docker" "start" "-a" "52db1352bbbe639503723e709cc6149b295e35739b469ffafe404a018fd8a8a4"` [INFO] [stderr] Checking smallvec v0.6.2 [INFO] [stderr] Checking crossbeam-utils v0.4.1 [INFO] [stderr] Checking spmc v0.2.2 [INFO] [stderr] Checking canal v0.1.3 [INFO] [stderr] Checking crossbeam-utils v0.2.2 [INFO] [stderr] Checking chan v0.1.21 [INFO] [stderr] Checking serde_json v1.0.20 [INFO] [stderr] Checking crossbeam-epoch v0.3.1 [INFO] [stderr] Checking crossbeam-epoch v0.5.0 [INFO] [stderr] Checking parking_lot_core v0.2.14 [INFO] [stderr] Checking crossbeam-deque v0.2.0 [INFO] [stderr] Checking parking_lot v0.5.5 [INFO] [stderr] Checking rayon-core v1.4.0 [INFO] [stderr] Checking crossbeam-channel v0.2.2 [INFO] [stderr] Checking rayon v1.0.1 [INFO] [stderr] Checking word_counter v0.1.0 (/opt/rustwide/workdir) [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:92:25 [INFO] [stderr] | [INFO] [stderr] 92 | let mut raw_words = String::from(str::from_utf8(&char_vec).unwrap()); [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[E0635]: unknown feature `io` [INFO] [stderr] --> src/main.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(io)] [INFO] [stderr] | ^^ [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/main.rs:92:25 [INFO] [stderr] | [INFO] [stderr] 92 | let mut raw_words = String::from(str::from_utf8(&char_vec).unwrap()); [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: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0635`. [INFO] [stderr] error[E0635]: unknown feature `io` [INFO] [stderr] --> src/main.rs:1:12 [INFO] [stderr] | [INFO] [stderr] 1 | #![feature(io)] [INFO] [stderr] | ^^ [INFO] [stderr] [INFO] [stderr] error: could not compile `word_counter`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: aborting due to previous error [INFO] [stderr] [INFO] [stderr] For more information about this error, try `rustc --explain E0635`. [INFO] [stderr] error: could not compile `word_counter`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "52db1352bbbe639503723e709cc6149b295e35739b469ffafe404a018fd8a8a4"` [INFO] running `"docker" "rm" "-f" "52db1352bbbe639503723e709cc6149b295e35739b469ffafe404a018fd8a8a4"` [INFO] [stdout] 52db1352bbbe639503723e709cc6149b295e35739b469ffafe404a018fd8a8a4