[INFO] cloning repository https://github.com/andrewyli/frustals
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/andrewyli/frustals" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrewyli%2Ffrustals"`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrewyli%2Ffrustals'...
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 8c366640860935a52e485f62edee1ef4954e13d7
[INFO] testing andrewyli/frustals against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandrewyli%2Ffrustals" "/workspace/builds/worker-1/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/andrewyli/frustals 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 git repo https://github.com/andrewyli/frustals
[INFO] finished tweaking git repo https://github.com/andrewyli/frustals
[INFO] tweaked toml for git repo https://github.com/andrewyli/frustals written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/andrewyli/frustals already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /workspace/builds/worker-1/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] [stdout] 390a573bd8a413427360fbecb2d3f54649710038e66c0c51296d4dcb87654ca8
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "390a573bd8a413427360fbecb2d3f54649710038e66c0c51296d4dcb87654ca8"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling bmp v0.5.0
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling frustals v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::cmp`
[INFO] [stderr]  --> src/complex_iterator.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::cmp;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.69s
[INFO] running `"docker" "inspect" "390a573bd8a413427360fbecb2d3f54649710038e66c0c51296d4dcb87654ca8"`
[INFO] running `"docker" "rm" "-f" "390a573bd8a413427360fbecb2d3f54649710038e66c0c51296d4dcb87654ca8"`
[INFO] [stdout] 390a573bd8a413427360fbecb2d3f54649710038e66c0c51296d4dcb87654ca8
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] c552cc467d35b4f7fd4fbab7975b12488471b528a9ed4cb9c67a6e326e51724e
[INFO] running `"docker" "start" "-a" "c552cc467d35b4f7fd4fbab7975b12488471b528a9ed4cb9c67a6e326e51724e"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling frustals v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused import: `std::cmp`
[INFO] [stderr]  --> src/complex_iterator.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::cmp;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp`
[INFO] [stderr]  --> src/complex_iterator.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::cmp;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/complex_iterator.rs:112:9
[INFO] [stderr]     |
[INFO] [stderr] 112 |         img.save("/home/andrew/Downloads/mandelbrot.bmp");
[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/complex_iterator.rs:129:9
[INFO] [stderr]     |
[INFO] [stderr] 129 |         img.save("/home/andrew/Downloads/tribrot.bmp");
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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/complex_iterator.rs:145:9
[INFO] [stderr]     |
[INFO] [stderr] 145 |         img.save("/home/andrew/Downloads/something.bmp");
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.91s
[INFO] running `"docker" "inspect" "c552cc467d35b4f7fd4fbab7975b12488471b528a9ed4cb9c67a6e326e51724e"`
[INFO] running `"docker" "rm" "-f" "c552cc467d35b4f7fd4fbab7975b12488471b528a9ed4cb9c67a6e326e51724e"`
[INFO] [stdout] c552cc467d35b4f7fd4fbab7975b12488471b528a9ed4cb9c67a6e326e51724e
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 2637cd44ab577fe2a9055520e37abad992415834cc5edf54b3a4fec644768bf7
[INFO] running `"docker" "start" "-a" "2637cd44ab577fe2a9055520e37abad992415834cc5edf54b3a4fec644768bf7"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused import: `std::cmp`
[INFO] [stderr]  --> src/complex_iterator.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::cmp;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/complex_iterator.rs:112:9
[INFO] [stderr]     |
[INFO] [stderr] 112 |         img.save("/home/andrew/Downloads/mandelbrot.bmp");
[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/complex_iterator.rs:129:9
[INFO] [stderr]     |
[INFO] [stderr] 129 |         img.save("/home/andrew/Downloads/tribrot.bmp");
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[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/complex_iterator.rs:145:9
[INFO] [stderr]     |
[INFO] [stderr] 145 |         img.save("/home/andrew/Downloads/something.bmp");
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp`
[INFO] [stderr]  --> src/complex_iterator.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::cmp;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/frustals-5c7e7ace0df97b2b
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test cpolynomial::test::op_test ... ok
[INFO] [stdout] test cpolynomial::test::eval_test ... ok
[INFO] [stdout] test complex_iterator::test::array_gen ... ok
[INFO] [stdout] test complex_iterator::test::something ... ok
[INFO] [stdout] test complex_iterator::test::tribrot ... ok
[INFO] [stdout] test complex_iterator::test::mandelbrot ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests frustals
[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" "2637cd44ab577fe2a9055520e37abad992415834cc5edf54b3a4fec644768bf7"`
[INFO] running `"docker" "rm" "-f" "2637cd44ab577fe2a9055520e37abad992415834cc5edf54b3a4fec644768bf7"`
[INFO] [stdout] 2637cd44ab577fe2a9055520e37abad992415834cc5edf54b3a4fec644768bf7