[INFO] updating cached repository https://github.com/wilcoxky/rust-hw04
[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] 2567a8394af35830fbaf522f223c6e485873bd3e
[INFO] testing wilcoxky/rust-hw04 against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwilcoxky%2Frust-hw04" "/workspace/builds/worker-14/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wilcoxky/rust-hw04 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/wilcoxky/rust-hw04
[INFO] finished tweaking git repo https://github.com/wilcoxky/rust-hw04
[INFO] tweaked toml for git repo https://github.com/wilcoxky/rust-hw04 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/wilcoxky/rust-hw04 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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 6fe15b4faa909a7e365384ca8742562647aebc29739f5a68448432ca5a53ee44
[INFO] running `"docker" "start" "-a" "6fe15b4faa909a7e365384ca8742562647aebc29739f5a68448432ca5a53ee44"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.31
[INFO] [stderr]    Compiling rand v0.3.16
[INFO] [stderr]    Compiling hw04 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |         try!(io::stdout().flush().map_err(rpn::Error::IO));
[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:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |         try!(io::stdin().read_line(&mut buffer).map_err(rpn::Error::IO));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:62:30
[INFO] [stderr]    |
[INFO] [stderr] 62 |                 let number = try!(i32::from_str(n).map_err(|_| rpn::Error::Syntax));
[INFO] [stderr]    |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]   --> src/main.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let result = evaluate_line(&mut stack, &buffer);
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/rpn.rs:124:21
[INFO] [stderr]     |
[INFO] [stderr] 124 |                     self.push(n);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/rpn.rs:133:21
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     self.push(first.unwrap());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.55s
[INFO] running `"docker" "inspect" "6fe15b4faa909a7e365384ca8742562647aebc29739f5a68448432ca5a53ee44"`
[INFO] running `"docker" "rm" "-f" "6fe15b4faa909a7e365384ca8742562647aebc29739f5a68448432ca5a53ee44"`
[INFO] [stdout] 6fe15b4faa909a7e365384ca8742562647aebc29739f5a68448432ca5a53ee44
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] f7ff5c48c3d08cb198c19abbfe848b423afc3bc6d6f11e81f15da5805b7596a0
[INFO] running `"docker" "start" "-a" "f7ff5c48c3d08cb198c19abbfe848b423afc3bc6d6f11e81f15da5805b7596a0"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling hw04 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |         try!(io::stdout().flush().map_err(rpn::Error::IO));
[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:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |         try!(io::stdin().read_line(&mut buffer).map_err(rpn::Error::IO));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:62:30
[INFO] [stderr]    |
[INFO] [stderr] 62 |                 let number = try!(i32::from_str(n).map_err(|_| rpn::Error::Syntax));
[INFO] [stderr]    |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]   --> src/main.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let result = evaluate_line(&mut stack, &buffer);
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/rpn.rs:124:21
[INFO] [stderr]     |
[INFO] [stderr] 124 |                     self.push(n);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/rpn.rs:133:21
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     self.push(first.unwrap());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.55s
[INFO] running `"docker" "inspect" "f7ff5c48c3d08cb198c19abbfe848b423afc3bc6d6f11e81f15da5805b7596a0"`
[INFO] running `"docker" "rm" "-f" "f7ff5c48c3d08cb198c19abbfe848b423afc3bc6d6f11e81f15da5805b7596a0"`
[INFO] [stdout] f7ff5c48c3d08cb198c19abbfe848b423afc3bc6d6f11e81f15da5805b7596a0
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 7721fffb649f53892b7237da839364f6f94d697973c07657e62c34dacd7e4213
[INFO] running `"docker" "start" "-a" "7721fffb649f53892b7237da839364f6f94d697973c07657e62c34dacd7e4213"`
[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:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |         try!(io::stdout().flush().map_err(rpn::Error::IO));
[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:26:9
[INFO] [stderr]    |
[INFO] [stderr] 26 |         try!(io::stdin().read_line(&mut buffer).map_err(rpn::Error::IO));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:62:30
[INFO] [stderr]    |
[INFO] [stderr] 62 |                 let number = try!(i32::from_str(n).map_err(|_| rpn::Error::Syntax));
[INFO] [stderr]    |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `result`
[INFO] [stderr]   --> src/main.rs:27:13
[INFO] [stderr]    |
[INFO] [stderr] 27 |         let result = evaluate_line(&mut stack, &buffer);
[INFO] [stderr]    |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/rpn.rs:124:21
[INFO] [stderr]     |
[INFO] [stderr] 124 |                     self.push(n);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/rpn.rs:133:21
[INFO] [stderr]     |
[INFO] [stderr] 133 |                     self.push(first.unwrap());
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/hw04-f365d31f5072bbb4
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test rpn::tests::test_eval_rand2 ... ok
[INFO] [stdout] test rpn::tests::test_eval_quit ... ok
[INFO] [stdout] test rpn::tests::test_eval_add3 ... ok
[INFO] [stdout] test rpn::tests::test_eval_add1 ... ok
[INFO] [stdout] test rpn::tests::test_eval_add2 ... ok
[INFO] [stdout] test rpn::tests::test_eval_swap1 ... ok
[INFO] [stdout] test rpn::tests::test_eval_eq1 ... ok
[INFO] [stdout] test rpn::tests::test_pop_empty1 ... ok
[INFO] [stdout] test rpn::tests::test_eval_eq2 ... ok
[INFO] [stdout] test rpn::tests::test_eval_neg2 ... ok
[INFO] [stdout] test rpn::tests::test_pop_empty2 ... ok
[INFO] [stdout] test rpn::tests::test_eval_rand1 ... ok
[INFO] [stdout] test rpn::tests::test_eval_neg1 ... ok
[INFO] [stdout] test rpn::tests::test_eval_swap2 ... ok
[INFO] [stdout] test tests::test_evaluate_line_bad_parse ... ok
[INFO] [stdout] test tests::test_evaluate_line_bool ... ok
[INFO] [stdout] test tests::test_evaluate_line_neg ... ok
[INFO] [stdout] test tests::test_evaluate_line_swap ... ok
[INFO] [stdout] test tests::test_evaluate_line_plus ... ok
[INFO] [stdout] test tests::test_evaluate_line_int ... ok
[INFO] [stdout] test tests::test_evaluate_line_eq ... ok
[INFO] [stdout] test tests::test_evaluate_line_quit ... ok
[INFO] [stdout] test tests::test_evaluate_line_rand ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "7721fffb649f53892b7237da839364f6f94d697973c07657e62c34dacd7e4213"`
[INFO] running `"docker" "rm" "-f" "7721fffb649f53892b7237da839364f6f94d697973c07657e62c34dacd7e4213"`
[INFO] [stdout] 7721fffb649f53892b7237da839364f6f94d697973c07657e62c34dacd7e4213