[INFO] updating cached repository https://github.com/hayatoito/icfp2006
[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] d2761d0704b84f5c2096bae37be5d0bef3641251
[INFO] testing hayatoito/icfp2006 against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhayatoito%2Ficfp2006" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/hayatoito/icfp2006 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/hayatoito/icfp2006
[INFO] finished tweaking git repo https://github.com/hayatoito/icfp2006
[INFO] tweaked toml for git repo https://github.com/hayatoito/icfp2006 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/hayatoito/icfp2006 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 38b2c6e8f8883e688ed5ebb0e329b43301ece61c2964f7ee2e285b265d404c61
[INFO] running `"docker" "start" "-a" "38b2c6e8f8883e688ed5ebb0e329b43301ece61c2964f7ee2e285b265d404c61"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.32
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling lazy_static v0.2.9
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling regex-syntax v0.4.1
[INFO] [stderr]    Compiling utf8-ranges v0.1.3
[INFO] [stderr]    Compiling regex-syntax v0.3.9
[INFO] [stderr]    Compiling structopt-derive v0.1.1
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling term_size v0.3.0
[INFO] [stderr]    Compiling memchr v1.0.1
[INFO] [stderr]    Compiling atty v0.2.3
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling textwrap v0.8.0
[INFO] [stderr]    Compiling loggerv v0.4.0
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling aho-corasick v0.6.3
[INFO] [stderr]    Compiling clap v2.26.2
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling regex v0.2.2
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling structopt v0.1.1
[INFO] [stderr]    Compiling icfp2006 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: struct is never constructed: `InteractiveUm`
[INFO] [stderr]    --> src/um.rs:242:8
[INFO] [stderr]     |
[INFO] [stderr] 242 | struct InteractiveUm<R, W> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `repl`
[INFO] [stderr]    --> src/um.rs:251:5
[INFO] [stderr]     |
[INFO] [stderr] 251 |     pub fn repl(&mut self, line: R) -> Option<&W> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 38.67s
[INFO] running `"docker" "inspect" "38b2c6e8f8883e688ed5ebb0e329b43301ece61c2964f7ee2e285b265d404c61"`
[INFO] running `"docker" "rm" "-f" "38b2c6e8f8883e688ed5ebb0e329b43301ece61c2964f7ee2e285b265d404c61"`
[INFO] [stdout] 38b2c6e8f8883e688ed5ebb0e329b43301ece61c2964f7ee2e285b265d404c61
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 66057cd6586a2b41830d0983cb8c1ee49c656d7b5581147632a3bd9a864ba710
[INFO] running `"docker" "start" "-a" "66057cd6586a2b41830d0983cb8c1ee49c656d7b5581147632a3bd9a864ba710"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling icfp2006 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: struct is never constructed: `InteractiveUm`
[INFO] [stderr]    --> src/um.rs:242:8
[INFO] [stderr]     |
[INFO] [stderr] 242 | struct InteractiveUm<R, W> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `repl`
[INFO] [stderr]    --> src/um.rs:251:5
[INFO] [stderr]     |
[INFO] [stderr] 251 |     pub fn repl(&mut self, line: R) -> Option<&W> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `InteractiveUm`
[INFO] [stderr]    --> src/um.rs:242:8
[INFO] [stderr]     |
[INFO] [stderr] 242 | struct InteractiveUm<R, W> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `repl`
[INFO] [stderr]    --> src/um.rs:251:5
[INFO] [stderr]     |
[INFO] [stderr] 251 |     pub fn repl(&mut self, line: R) -> Option<&W> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `"docker" "inspect" "66057cd6586a2b41830d0983cb8c1ee49c656d7b5581147632a3bd9a864ba710"`
[INFO] running `"docker" "rm" "-f" "66057cd6586a2b41830d0983cb8c1ee49c656d7b5581147632a3bd9a864ba710"`
[INFO] [stdout] 66057cd6586a2b41830d0983cb8c1ee49c656d7b5581147632a3bd9a864ba710
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 777c17726dcbc1214ec0c0342a933d0f470a6a4bfdafc81fdc6405a5fc621cc0
[INFO] running `"docker" "start" "-a" "777c17726dcbc1214ec0c0342a933d0f470a6a4bfdafc81fdc6405a5fc621cc0"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: struct is never constructed: `InteractiveUm`
[INFO] [stderr]    --> src/um.rs:242:8
[INFO] [stderr]     |
[INFO] [stderr] 242 | struct InteractiveUm<R, W> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `repl`
[INFO] [stderr]    --> src/um.rs:251:5
[INFO] [stderr]     |
[INFO] [stderr] 251 |     pub fn repl(&mut self, line: R) -> Option<&W> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `InteractiveUm`
[INFO] [stderr]    --> src/um.rs:242:8
[INFO] [stderr]     |
[INFO] [stderr] 242 | struct InteractiveUm<R, W> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `repl`
[INFO] [stderr]    --> src/um.rs:251:5
[INFO] [stderr]     |
[INFO] [stderr] 251 |     pub fn repl(&mut self, line: R) -> Option<&W> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/icfp2006-5b53f4b1f53fb404
[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] [stderr]      Running /opt/rustwide/target/debug/deps/icfp2006-bebb4c8e5a6d0249
[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] [stderr]      Running /opt/rustwide/target/debug/deps/task-94ffa0bb54c66ca0
[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] [stderr]      Running /opt/rustwide/target/debug/deps/um-3d21fa9d93067a12
[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] [stderr]    Doc-tests icfp2006
[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" "777c17726dcbc1214ec0c0342a933d0f470a6a4bfdafc81fdc6405a5fc621cc0"`
[INFO] running `"docker" "rm" "-f" "777c17726dcbc1214ec0c0342a933d0f470a6a4bfdafc81fdc6405a5fc621cc0"`
[INFO] [stdout] 777c17726dcbc1214ec0c0342a933d0f470a6a4bfdafc81fdc6405a5fc621cc0