[INFO] fetching crate pkgsrc 0.1.7...
[INFO] checking pkgsrc-0.1.7 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate pkgsrc 0.1.7 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate pkgsrc 0.1.7 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate pkgsrc 0.1.7
[INFO] finished tweaking crates.io crate pkgsrc 0.1.7
[INFO] tweaked toml for crates.io crate pkgsrc 0.1.7 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate pkgsrc 0.1.7 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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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] 860b54424f06561471c292bcc5d5d33aa9e22295b54b09211ce176e77c38d190
[INFO] running `"docker" "start" "-a" "860b54424f06561471c292bcc5d5d33aa9e22295b54b09211ce176e77c38d190"`
[INFO] [stderr]     Checking unindent v0.1.3
[INFO] [stderr]    Compiling miniz-sys v0.1.12
[INFO] [stderr]     Checking filetime v0.2.7
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking ar v0.7.0
[INFO] [stderr]     Checking tar v0.4.26
[INFO] [stderr]     Checking flate2 v1.0.11
[INFO] [stderr]     Checking pkgsrc v0.1.7 (/opt/rustwide/workdir)
[INFO] [stderr] warning: value assigned to `pkgsum` is never read
[INFO] [stderr]    --> src/summary.rs:545:17
[INFO] [stderr]     |
[INFO] [stderr] 545 |         let mut pkgsum = SummaryEntry::new();
[INFO] [stderr]     |                 ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `self.buf` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/summary.rs:508:20
[INFO] [stderr]     |
[INFO] [stderr] 459 |         let input_string = match std::str::from_utf8(&self.buf) {
[INFO] [stderr]     |                                                      --------- immutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 508 |         self.buf = self.buf.split_off(input_string.len());
[INFO] [stderr]     |                    ^^^^^^^^           ------------ immutable borrow later used here
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: cannot borrow `self.buf` as mutable because it is also borrowed as immutable
[INFO] [stderr]    --> src/summary.rs:508:20
[INFO] [stderr]     |
[INFO] [stderr] 459 |         let input_string = match std::str::from_utf8(&self.buf) {
[INFO] [stderr]     |                                                      --------- immutable borrow occurs here
[INFO] [stderr] ...
[INFO] [stderr] 508 |         self.buf = self.buf.split_off(input_string.len());
[INFO] [stderr]     |                    ^^^^^^^^           ------------ immutable borrow later used here
[INFO] [stderr]     |                    |
[INFO] [stderr]     |                    mutable borrow occurs here
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(mutable_borrow_reservation_conflict)]` on by default
[INFO] [stderr]     = warning: this borrowing pattern was not meant to be accepted, and may become a hard error in the future
[INFO] [stderr]     = note: for more information, see issue #59159 <https://github.com/rust-lang/rust/issues/59159>
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/summary.rs:542:9
[INFO] [stderr]     |
[INFO] [stderr] 542 |         std::io::copy(&mut pkginfo.as_bytes(), &mut pkgsummary);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.70s
[INFO] running `"docker" "inspect" "860b54424f06561471c292bcc5d5d33aa9e22295b54b09211ce176e77c38d190"`
[INFO] running `"docker" "rm" "-f" "860b54424f06561471c292bcc5d5d33aa9e22295b54b09211ce176e77c38d190"`
[INFO] [stdout] 860b54424f06561471c292bcc5d5d33aa9e22295b54b09211ce176e77c38d190