[INFO] cloning repository https://github.com/jhamill34/rust-utilities
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jhamill34/rust-utilities" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjhamill34%2Frust-utilities", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjhamill34%2Frust-utilities'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 498b06bb2ded4919a2943667bd574a4e6a648283
[INFO] testing jhamill34/rust-utilities against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjhamill34%2Frust-utilities" "/workspace/builds/worker-17/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-17/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jhamill34/rust-utilities on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jhamill34/rust-utilities
[INFO] finished tweaking git repo https://github.com/jhamill34/rust-utilities
[INFO] tweaked toml for git repo https://github.com/jhamill34/rust-utilities written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] crate git repo https://github.com/jhamill34/rust-utilities already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9bdd9343031921ff64dfd5d1902b05bd9a309b5ceed59b5b54ff2e012a3d818d
[INFO] running `Command { std: "docker" "start" "-a" "9bdd9343031921ff64dfd5d1902b05bd9a309b5ceed59b5b54ff2e012a3d818d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9bdd9343031921ff64dfd5d1902b05bd9a309b5ceed59b5b54ff2e012a3d818d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9bdd9343031921ff64dfd5d1902b05bd9a309b5ceed59b5b54ff2e012a3d818d", kill_on_drop: false }`
[INFO] [stdout] 9bdd9343031921ff64dfd5d1902b05bd9a309b5ceed59b5b54ff2e012a3d818d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18bf33cd3f7104937801ebbbe24aa7914613ac3292b48dc1135a79f6b3d7d2bf
[INFO] running `Command { std: "docker" "start" "-a" "18bf33cd3f7104937801ebbbe24aa7914613ac3292b48dc1135a79f6b3d7d2bf", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling lookahead_buffer v0.1.0 (/opt/rustwide/workdir/lookahead_buffer)
[INFO] [stderr]    Compiling pipeline v0.1.0 (/opt/rustwide/workdir/pipeline)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.36s
[INFO] running `Command { std: "docker" "inspect" "18bf33cd3f7104937801ebbbe24aa7914613ac3292b48dc1135a79f6b3d7d2bf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18bf33cd3f7104937801ebbbe24aa7914613ac3292b48dc1135a79f6b3d7d2bf", kill_on_drop: false }`
[INFO] [stdout] 18bf33cd3f7104937801ebbbe24aa7914613ac3292b48dc1135a79f6b3d7d2bf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f902ee357ed482cea459a6006de64cb9be616b5ce761ba16c40749d5f27bbc29
[INFO] running `Command { std: "docker" "start" "-a" "f902ee357ed482cea459a6006de64cb9be616b5ce761ba16c40749d5f27bbc29", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling pipeline v0.1.0 (/opt/rustwide/workdir/pipeline)
[INFO] [stderr]    Compiling lookahead_buffer v0.1.0 (/opt/rustwide/workdir/lookahead_buffer)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> pipeline/tests/integration_tests.rs:24:26
[INFO] [stdout]    |
[INFO] [stdout] 24 |         Err(e) => panic!(e),
[INFO] [stdout]    |                          ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]    |
[INFO] [stdout] 24 |         Err(e) => panic!("{}", e),
[INFO] [stdout]    |                          +++++
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 24 |         Err(e) => std::panic::panic_any(e),
[INFO] [stdout]    |                   ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.35s
[INFO] running `Command { std: "docker" "inspect" "f902ee357ed482cea459a6006de64cb9be616b5ce761ba16c40749d5f27bbc29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f902ee357ed482cea459a6006de64cb9be616b5ce761ba16c40749d5f27bbc29", kill_on_drop: false }`
[INFO] [stdout] f902ee357ed482cea459a6006de64cb9be616b5ce761ba16c40749d5f27bbc29
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0f7e8cf39302ad135c61db45f4fcf5c77f2808374b2d77e435110e80d739861a
[INFO] running `Command { std: "docker" "start" "-a" "0f7e8cf39302ad135c61db45f4fcf5c77f2808374b2d77e435110e80d739861a", kill_on_drop: false }`
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]   --> pipeline/tests/integration_tests.rs:24:26
[INFO] [stderr]    |
[INFO] [stderr] 24 |         Err(e) => panic!(e),
[INFO] [stderr]    |                          ^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stderr]    = note: this usage of panic!() is deprecated; it will be a hard error in Rust 2021
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]    |
[INFO] [stderr] 24 |         Err(e) => panic!("{}", e),
[INFO] [stderr]    |                          +++++
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]    |
[INFO] [stderr] 24 |         Err(e) => std::panic::panic_any(e),
[INFO] [stderr]    |                   ~~~~~~~~~~~~~~~~~~~~~
[INFO] [stderr] 
[INFO] [stderr] warning: `pipeline` (test "integration_tests") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.12s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/lookahead_buffer-bbb1b02adcd1ea88)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test tests::test_advancing_past_length_of_buffer_does_nothing ... ok
[INFO] [stdout] test tests::test_can_consume_different_slices_after_commit ... ok
[INFO] [stdout] test tests::test_can_consume_empty_slices_after_commit ... ok
[INFO] [stdout] test tests::test_can_consume_slice ... ok
[INFO] [stdout] test tests::test_can_peek_at_top_values ... ok
[INFO] [stdout] test tests::test_peek_returns_null_byte_when_at_end ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration_tests.rs (/opt/rustwide/target/debug/deps/integration_tests-8989007e6f52e5f9)
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/pipeline-e2b567a7939b801d)
[INFO] [stderr]      Running tests/integration_tests.rs (/opt/rustwide/target/debug/deps/integration_tests-4e35aa5d34a5d98b)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test test::step_one_works ... ok
[INFO] [stdout] test test::test_workflow_errors_in_the_middle ... ok
[INFO] [stdout] test test::test_empty_pipe_returns_input ... ok
[INFO] [stdout] test test::test_simple_workflow_works ... ok
[INFO] [stdout] test test::step_three_fails ... ok
[INFO] [stdout] test test::step_two_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests lookahead_buffer
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests pipeline
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0f7e8cf39302ad135c61db45f4fcf5c77f2808374b2d77e435110e80d739861a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f7e8cf39302ad135c61db45f4fcf5c77f2808374b2d77e435110e80d739861a", kill_on_drop: false }`
[INFO] [stdout] 0f7e8cf39302ad135c61db45f4fcf5c77f2808374b2d77e435110e80d739861a