[INFO] fetching crate nibble_vec 0.0.4...
[INFO] testing nibble_vec-0.0.4 against beta-2020-06-03 for beta-1.45-1
[INFO] extracting crate nibble_vec 0.0.4 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate nibble_vec 0.0.4 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 nibble_vec 0.0.4
[INFO] finished tweaking crates.io crate nibble_vec 0.0.4
[INFO] tweaked toml for crates.io crate nibble_vec 0.0.4 written to /workspace/builds/worker-4/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-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=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] 98173b8a7fb2ee89fff41f09b17c94e7e17cf370a7e2865a3a53e68662b4b136
[INFO] running `"docker" "start" "-a" "98173b8a7fb2ee89fff41f09b17c94e7e17cf370a7e2865a3a53e68662b4b136"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling nibble_vec v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:254:9
[INFO] [stderr]     |
[INFO] [stderr] 254 |         try!(write!(fmt, "NibbleVec ["));
[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/lib.rs:257:13
[INFO] [stderr]     |
[INFO] [stderr] 257 |             try!(write!(fmt, "{}", self.get(0)));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:261:13
[INFO] [stderr]     |
[INFO] [stderr] 261 |             try!(write!(fmt, ", {}", self.get(i)));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `"docker" "inspect" "98173b8a7fb2ee89fff41f09b17c94e7e17cf370a7e2865a3a53e68662b4b136"`
[INFO] running `"docker" "rm" "-f" "98173b8a7fb2ee89fff41f09b17c94e7e17cf370a7e2865a3a53e68662b4b136"`
[INFO] [stdout] 98173b8a7fb2ee89fff41f09b17c94e7e17cf370a7e2865a3a53e68662b4b136
[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=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" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c9aa72d9d52d09f568b3202a1e88b8742f1d990e6de3bd71d92fc310e781c0aa
[INFO] running `"docker" "start" "-a" "c9aa72d9d52d09f568b3202a1e88b8742f1d990e6de3bd71d92fc310e781c0aa"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling nibble_vec v0.0.4 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:254:9
[INFO] [stderr]     |
[INFO] [stderr] 254 |         try!(write!(fmt, "NibbleVec ["));
[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/lib.rs:257:13
[INFO] [stderr]     |
[INFO] [stderr] 257 |             try!(write!(fmt, "{}", self.get(0)));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:261:13
[INFO] [stderr]     |
[INFO] [stderr] 261 |             try!(write!(fmt, ", {}", self.get(i)));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:254:9
[INFO] [stderr]     |
[INFO] [stderr] 254 |         try!(write!(fmt, "NibbleVec ["));
[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/lib.rs:257:13
[INFO] [stderr]     |
[INFO] [stderr] 257 |             try!(write!(fmt, "{}", self.get(0)));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:261:13
[INFO] [stderr]     |
[INFO] [stderr] 261 |             try!(write!(fmt, ", {}", self.get(i)));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `"docker" "inspect" "c9aa72d9d52d09f568b3202a1e88b8742f1d990e6de3bd71d92fc310e781c0aa"`
[INFO] running `"docker" "rm" "-f" "c9aa72d9d52d09f568b3202a1e88b8742f1d990e6de3bd71d92fc310e781c0aa"`
[INFO] [stdout] c9aa72d9d52d09f568b3202a1e88b8742f1d990e6de3bd71d92fc310e781c0aa
[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=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" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 66e49198c0142afbe0ce5b88b20ca4b723c0351c444d2ed4df0a908a8fbf837f
[INFO] running `"docker" "start" "-a" "66e49198c0142afbe0ce5b88b20ca4b723c0351c444d2ed4df0a908a8fbf837f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:254:9
[INFO] [stderr]     |
[INFO] [stderr] 254 |         try!(write!(fmt, "NibbleVec ["));
[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/lib.rs:257:13
[INFO] [stderr]     |
[INFO] [stderr] 257 |             try!(write!(fmt, "{}", self.get(0)));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:261:13
[INFO] [stderr]     |
[INFO] [stderr] 261 |             try!(write!(fmt, ", {}", self.get(i)));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:254:9
[INFO] [stderr]     |
[INFO] [stderr] 254 |         try!(write!(fmt, "NibbleVec ["));
[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/lib.rs:257:13
[INFO] [stderr]     |
[INFO] [stderr] 257 |             try!(write!(fmt, "{}", self.get(0)));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:261:13
[INFO] [stderr]     |
[INFO] [stderr] 261 |             try!(write!(fmt, ", {}", self.get(i)));
[INFO] [stderr]     |             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/nibble_vec-1cdd8f59a1816027
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test test::as_bytes ... ok
[INFO] [stdout] test test::clone ... ok
[INFO] [stdout] test test::into ... ok
[INFO] [stdout] test test::get ... ok
[INFO] [stdout] test test::into_bytes ... ok
[INFO] [stdout] test test::from ... ok
[INFO] [stdout] test test::split_odd_length ... ok
[INFO] [stdout] test test::split_even_length ... ok
[INFO] [stdout] test test::join_odd_length ... ok
[INFO] [stdout] test test::join_even_length ... ok
[INFO] [stdout] test test::memory_reuse ... ok
[INFO] [stdout] test test::push ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests nibble_vec
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "66e49198c0142afbe0ce5b88b20ca4b723c0351c444d2ed4df0a908a8fbf837f"`
[INFO] running `"docker" "rm" "-f" "66e49198c0142afbe0ce5b88b20ca4b723c0351c444d2ed4df0a908a8fbf837f"`
[INFO] [stdout] 66e49198c0142afbe0ce5b88b20ca4b723c0351c444d2ed4df0a908a8fbf837f