[INFO] updating cached repository https://github.com/solson/brainrust
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3ab5db3272eb77f0aeabc12c9b56e0370e32540c
[INFO] testing solson/brainrust against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsolson%2Fbrainrust" "/workspace/builds/worker-10/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/solson/brainrust on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/solson/brainrust
[INFO] finished tweaking git repo https://github.com/solson/brainrust
[INFO] tweaked toml for git repo https://github.com/solson/brainrust written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/solson/brainrust already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "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=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" "+1.44.0" "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] 8658ab7670f3028331d161cef7b6a9e4ea8f154e628e46ddc8d7bcd17a24cd2d
[INFO] running `"docker" "start" "-a" "8658ab7670f3028331d161cef7b6a9e4ea8f154e628e46ddc8d7bcd17a24cd2d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling brainrust v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:122:28
[INFO] [stderr]     |
[INFO] [stderr] 122 |             Op::Write => { try!(output.write(&[tape.read(); 1])); },
[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/main.rs:136:9
[INFO] [stderr]     |
[INFO] [stderr] 136 |         try!(file.read_to_string(&mut s));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/main.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     fn new(size: usize) -> CircularTape {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `"docker" "inspect" "8658ab7670f3028331d161cef7b6a9e4ea8f154e628e46ddc8d7bcd17a24cd2d"`
[INFO] running `"docker" "rm" "-f" "8658ab7670f3028331d161cef7b6a9e4ea8f154e628e46ddc8d7bcd17a24cd2d"`
[INFO] [stdout] 8658ab7670f3028331d161cef7b6a9e4ea8f154e628e46ddc8d7bcd17a24cd2d
[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=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" "+1.44.0" "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] b31be306e34bdf9d15efa440ed41d7d33a7ded011e0e50c44d3069f98bb933ad
[INFO] running `"docker" "start" "-a" "b31be306e34bdf9d15efa440ed41d7d33a7ded011e0e50c44d3069f98bb933ad"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling brainrust v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:122:28
[INFO] [stderr]     |
[INFO] [stderr] 122 |             Op::Write => { try!(output.write(&[tape.read(); 1])); },
[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/main.rs:136:9
[INFO] [stderr]     |
[INFO] [stderr] 136 |         try!(file.read_to_string(&mut s));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/main.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     fn new(size: usize) -> CircularTape {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.15s
[INFO] running `"docker" "inspect" "b31be306e34bdf9d15efa440ed41d7d33a7ded011e0e50c44d3069f98bb933ad"`
[INFO] running `"docker" "rm" "-f" "b31be306e34bdf9d15efa440ed41d7d33a7ded011e0e50c44d3069f98bb933ad"`
[INFO] [stdout] b31be306e34bdf9d15efa440ed41d7d33a7ded011e0e50c44d3069f98bb933ad
[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=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" "+1.44.0" "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] 25ec7f83c0f3c727380e0aff8e3cc71b29f6de878ee0014e53b43b1d19f0903e
[INFO] running `"docker" "start" "-a" "25ec7f83c0f3c727380e0aff8e3cc71b29f6de878ee0014e53b43b1d19f0903e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/main.rs:122:28
[INFO] [stderr]     |
[INFO] [stderr] 122 |             Op::Write => { try!(output.write(&[tape.read(); 1])); },
[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/main.rs:136:9
[INFO] [stderr]     |
[INFO] [stderr] 136 |         try!(file.read_to_string(&mut s));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/main.rs:91:5
[INFO] [stderr]    |
[INFO] [stderr] 91 |     fn new(size: usize) -> CircularTape {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/brainrust-ff43d66450a946d5
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test hello_world ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "25ec7f83c0f3c727380e0aff8e3cc71b29f6de878ee0014e53b43b1d19f0903e"`
[INFO] running `"docker" "rm" "-f" "25ec7f83c0f3c727380e0aff8e3cc71b29f6de878ee0014e53b43b1d19f0903e"`
[INFO] [stdout] 25ec7f83c0f3c727380e0aff8e3cc71b29f6de878ee0014e53b43b1d19f0903e