[INFO] crate maybe_utf8 0.2.3 is already in cache [INFO] testing maybe_utf8-0.2.3 against beta-2020-06-03 for beta-1.45-1 [INFO] extracting crate maybe_utf8 0.2.3 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate maybe_utf8 0.2.3 on toolchain beta-2020-06-03 [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate maybe_utf8 0.2.3 [INFO] finished tweaking crates.io crate maybe_utf8 0.2.3 [INFO] tweaked toml for crates.io crate maybe_utf8 0.2.3 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 0105871aa54073a65d8241138869cd44cf36b28fe9f5dea70cf187f7c7be7479 [INFO] running `"docker" "start" "-a" "0105871aa54073a65d8241138869cd44cf36b28fe9f5dea70cf187f7c7be7479"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling maybe_utf8 v0.2.3 (/opt/rustwide/workdir) [INFO] [stderr] error[E0432]: unresolved import `std::borrow::IntoCow` [INFO] [stderr] --> lib.rs:66:19 [INFO] [stderr] | [INFO] [stderr] 66 | use std::borrow::{IntoCow, Cow, ToOwned}; [INFO] [stderr] | ^^^^^^^ no `IntoCow` in `borrow` [INFO] [stderr] [INFO] [stderr] error[E0554]: `#![feature]` may not be used on the beta release channel [INFO] [stderr] --> lib.rs:63:1 [INFO] [stderr] | [INFO] [stderr] 63 | #![feature(core)] [INFO] [stderr] | ^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> lib.rs:360:17 [INFO] [stderr] | [INFO] [stderr] 360 | try!(write!(f, "b\"")); [INFO] [stderr] | ^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> lib.rs:363:34 [INFO] [stderr] | [INFO] [stderr] 363 | b'\t' => try!(write!(f, "\\t")), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> lib.rs:364:34 [INFO] [stderr] | [INFO] [stderr] 364 | b'\r' => try!(write!(f, "\\r")), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> lib.rs:365:34 [INFO] [stderr] | [INFO] [stderr] 365 | b'\n' => try!(write!(f, "\\n")), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> lib.rs:366:34 [INFO] [stderr] | [INFO] [stderr] 366 | b'\\' => try!(write!(f, "\\\\")), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> lib.rs:367:34 [INFO] [stderr] | [INFO] [stderr] 367 | b'\'' => try!(write!(f, "\\'")), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> lib.rs:368:34 [INFO] [stderr] | [INFO] [stderr] 368 | b'"' => try!(write!(f, "\\\"")), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> lib.rs:369:48 [INFO] [stderr] | [INFO] [stderr] 369 | b'\x20' ... b'\x7e' => try!(write!(f, "{}", c as char)), [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead [INFO] [stderr] --> lib.rs:370:30 [INFO] [stderr] | [INFO] [stderr] 370 | _ => try!(write!(f, "\\x{}{}", [INFO] [stderr] | ^^^ [INFO] [stderr] [INFO] [stderr] warning: `...` range patterns are deprecated [INFO] [stderr] --> lib.rs:369:33 [INFO] [stderr] | [INFO] [stderr] 369 | b'\x20' ... b'\x7e' => try!(write!(f, "{}", c as char)), [INFO] [stderr] | ^^^ help: use `..=` for an inclusive range [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default [INFO] [stderr] [INFO] [stderr] error: aborting due to 2 previous errors; 10 warnings emitted [INFO] [stderr] [INFO] [stderr] Some errors have detailed explanations: E0432, E0554. [INFO] [stderr] For more information about an error, try `rustc --explain E0432`. [INFO] [stderr] error: could not compile `maybe_utf8`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "0105871aa54073a65d8241138869cd44cf36b28fe9f5dea70cf187f7c7be7479"` [INFO] running `"docker" "rm" "-f" "0105871aa54073a65d8241138869cd44cf36b28fe9f5dea70cf187f7c7be7479"` [INFO] [stdout] 0105871aa54073a65d8241138869cd44cf36b28fe9f5dea70cf187f7c7be7479