[INFO] crate bit-matrix 0.4.0 is already in cache
[INFO] checking bit-matrix-0.4.0 against master#fdc0011561c6365c596dfd8fa1ef388162bc89c7 for pr-66504-1
[INFO] extracting crate bit-matrix 0.4.0 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate bit-matrix 0.4.0 on toolchain fdc0011561c6365c596dfd8fa1ef388162bc89c7
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "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-13/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+fdc0011561c6365c596dfd8fa1ef388162bc89c7" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 71c953dba2376f2207bf271287c7d8dae411ca479237ca523e9c9b6adc7c1b77
[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" "71c953dba2376f2207bf271287c7d8dae411ca479237ca523e9c9b6adc7c1b77"`
[INFO] [stderr]     Checking bit-vec v0.6.1
[INFO] [stderr]     Checking bit-matrix v0.4.0 (/opt/rustwide/workdir)
[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: 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] 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" "71c953dba2376f2207bf271287c7d8dae411ca479237ca523e9c9b6adc7c1b77"`
[INFO] running `"docker" "rm" "-f" "71c953dba2376f2207bf271287c7d8dae411ca479237ca523e9c9b6adc7c1b77"`
[INFO] [stdout] 71c953dba2376f2207bf271287c7d8dae411ca479237ca523e9c9b6adc7c1b77