[INFO] fetching crate bit-matrix 0.4.0...
[INFO] checking bit-matrix-0.4.0 against master#2748a9fd93dd1a00a4521f4f16de5befbf77f6cd for pr-62262-1
[INFO] extracting crate bit-matrix 0.4.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate bit-matrix 0.4.0 on toolchain 2748a9fd93dd1a00a4521f4f16de5befbf77f6cd
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate bit-matrix 0.4.0
[INFO] finished tweaking crates.io crate bit-matrix 0.4.0
[INFO] tweaked toml for crates.io crate bit-matrix 0.4.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+2748a9fd93dd1a00a4521f4f16de5befbf77f6cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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] [stdout] 060e14bd1c7593f9ee34f487e6c1dc51ebf8bdee1c43b8ca1339778246990fb2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "060e14bd1c7593f9ee34f487e6c1dc51ebf8bdee1c43b8ca1339778246990fb2"`
[INFO] [stderr]     Checking bit-vec v0.6.1
[INFO] [stderr]     Checking bit-matrix v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/submatrix.rs:229:17
[INFO] [stderr]     |
[INFO] [stderr] 229 |                 try!(write!(fmt, "{}", if bit { 1 } else { 0 }));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr]     |
[INFO] [stderr] note: lint level defined here
[INFO] [stderr]    --> src/lib.rs:10:24
[INFO] [stderr]     |
[INFO] [stderr] 10  | #![cfg_attr(test, deny(warnings))]
[INFO] [stderr]     |                        ^^^^^^^^
[INFO] [stderr]     = note: `#[deny(deprecated)]` implied by `#[deny(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] error: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/submatrix.rs:231:13
[INFO] [stderr]     |
[INFO] [stderr] 231 |             try!(write!(fmt, "\n"));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/submatrix.rs:229:17
[INFO] [stderr]     |
[INFO] [stderr] 229 |                 try!(write!(fmt, "{}", if bit { 1 } else { 0 }));
[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]    --> src/submatrix.rs:231:13
[INFO] [stderr]     |
[INFO] [stderr] 231 |             try!(write!(fmt, "\n"));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `bit-matrix`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "060e14bd1c7593f9ee34f487e6c1dc51ebf8bdee1c43b8ca1339778246990fb2"`
[INFO] running `"docker" "rm" "-f" "060e14bd1c7593f9ee34f487e6c1dc51ebf8bdee1c43b8ca1339778246990fb2"`
[INFO] [stdout] 060e14bd1c7593f9ee34f487e6c1dc51ebf8bdee1c43b8ca1339778246990fb2