[INFO] fetching crate fibonacci_codec 0.1.1...
[INFO] checking fibonacci_codec-0.1.1 against master#6d69caba110c0c2fb90180df1cbc8be5033b91d4 for pr-69530
[INFO] extracting crate fibonacci_codec 0.1.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate fibonacci_codec 0.1.1 on toolchain 6d69caba110c0c2fb90180df1cbc8be5033b91d4
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6d69caba110c0c2fb90180df1cbc8be5033b91d4" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate fibonacci_codec 0.1.1
[INFO] finished tweaking crates.io crate fibonacci_codec 0.1.1
[INFO] tweaked toml for crates.io crate fibonacci_codec 0.1.1 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6d69caba110c0c2fb90180df1cbc8be5033b91d4" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+6d69caba110c0c2fb90180df1cbc8be5033b91d4" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "+6d69caba110c0c2fb90180df1cbc8be5033b91d4" "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] 17c6e9a71f532a5d1ae8d0718a062a6142e44461ef0c875b67b00be143cefff0
[INFO] running `"docker" "start" "-a" "17c6e9a71f532a5d1ae8d0718a062a6142e44461ef0c875b67b00be143cefff0"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking bit-vec v0.4.4
[INFO] [stderr]     Checking fibonacci_codec v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/encode.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |         try!(self.fib_encode_mut(&mut vec));
[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/encode.rs:117:9
[INFO] [stderr]     |
[INFO] [stderr] 117 |         try!(self.fib_encode_mut(&mut vec));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/encode.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |         try!(self.fib_encode_mut(&mut vec));
[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/encode.rs:117:9
[INFO] [stderr]     |
[INFO] [stderr] 117 |         try!(self.fib_encode_mut(&mut vec));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.06s
[INFO] running `"docker" "inspect" "17c6e9a71f532a5d1ae8d0718a062a6142e44461ef0c875b67b00be143cefff0"`
[INFO] running `"docker" "rm" "-f" "17c6e9a71f532a5d1ae8d0718a062a6142e44461ef0c875b67b00be143cefff0"`
[INFO] [stdout] 17c6e9a71f532a5d1ae8d0718a062a6142e44461ef0c875b67b00be143cefff0