[INFO] cloning repository https://github.com/wyze/rust-book-examples
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wyze/rust-book-examples" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwyze%2Frust-book-examples", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwyze%2Frust-book-examples'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c5abad1d2d1657c3762013d72f8c183dfe860076
[INFO] testing wyze/rust-book-examples against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwyze%2Frust-book-examples" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wyze/rust-book-examples on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wyze/rust-book-examples
[INFO] finished tweaking git repo https://github.com/wyze/rust-book-examples
[INFO] tweaked toml for git repo https://github.com/wyze/rust-book-examples written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/wyze/rust-book-examples already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0dc8f6f8b9b73570e230b22a7455c208584fe89cedeb56db2b9afad58c4ad41b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0dc8f6f8b9b73570e230b22a7455c208584fe89cedeb56db2b9afad58c4ad41b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0dc8f6f8b9b73570e230b22a7455c208584fe89cedeb56db2b9afad58c4ad41b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0dc8f6f8b9b73570e230b22a7455c208584fe89cedeb56db2b9afad58c4ad41b", kill_on_drop: false }`
[INFO] [stdout] 0dc8f6f8b9b73570e230b22a7455c208584fe89cedeb56db2b9afad58c4ad41b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d890fdea9728944b6f7266b474779f2ce1f152755f79649ff7e418ec6ddc4490
[INFO] running `Command { std: "docker" "start" "-a" "d890fdea9728944b6f7266b474779f2ce1f152755f79649ff7e418ec6ddc4490", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling getrandom v0.1.9
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling cfg-if v0.1.9
[INFO] [stderr]    Compiling hello_macro v0.1.0 (/opt/rustwide/workdir/hello_macro)
[INFO] [stderr]    Compiling c2-chacha v0.2.2
[INFO] [stderr]    Compiling rand_core v0.5.0
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling rand v0.7.0
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling hello_macro_derive v0.1.0 (/opt/rustwide/workdir/hello_macro_derive)
[INFO] [stderr]    Compiling rust-book-examples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.59s
[INFO] running `Command { std: "docker" "inspect" "d890fdea9728944b6f7266b474779f2ce1f152755f79649ff7e418ec6ddc4490", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d890fdea9728944b6f7266b474779f2ce1f152755f79649ff7e418ec6ddc4490", kill_on_drop: false }`
[INFO] [stdout] d890fdea9728944b6f7266b474779f2ce1f152755f79649ff7e418ec6ddc4490
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d5a9a0ec04807ca8fdf9791e1d47ac285ea10dcc8c29c33830368ecb2e1adf4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "8d5a9a0ec04807ca8fdf9791e1d47ac285ea10dcc8c29c33830368ecb2e1adf4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling rust-book-examples v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> src/ch12_minigrep/lib.rs:141:28
[INFO] [stdout]     |
[INFO] [stdout] 141 |             assert_eq!(err.description(), "entity not found");
[INFO] [stdout]     |                            ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.83s
[INFO] running `Command { std: "docker" "inspect" "8d5a9a0ec04807ca8fdf9791e1d47ac285ea10dcc8c29c33830368ecb2e1adf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d5a9a0ec04807ca8fdf9791e1d47ac285ea10dcc8c29c33830368ecb2e1adf4", kill_on_drop: false }`
[INFO] [stdout] 8d5a9a0ec04807ca8fdf9791e1d47ac285ea10dcc8c29c33830368ecb2e1adf4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0b0bca1c9f16b5ad9c58302cfb27aa4b391f8bd4c002e459663da657eb9ae3db
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0b0bca1c9f16b5ad9c58302cfb27aa4b391f8bd4c002e459663da657eb9ae3db", kill_on_drop: false }`
[INFO] [stderr] warning: use of deprecated associated function `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stderr]    --> src/ch12_minigrep/lib.rs:141:28
[INFO] [stderr]     |
[INFO] [stderr] 141 |             assert_eq!(err.description(), "entity not found");
[INFO] [stderr]     |                            ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_book_examples-de0fb1d00350fea9)
[INFO] [stdout] 
[INFO] [stdout] running 33 tests
[INFO] [stdout] test ch08_mean_median_mode::tests::median_with_odd_number_of_items ... ok
[INFO] [stdout] test ch08_mean_median_mode::tests::mode_when_no_duplicates_in_list ... ok
[INFO] [stdout] test ch08_pig_latin::tests::test_convert_word_handles_punctuation ... ok
[INFO] [stdout] test ch08_mean_median_mode::tests::median_with_even_number_of_items ... ok
[INFO] [stdout] test ch11_01_writing_tests::tests::exploration ... ok
[INFO] [stdout] test ch08_mean_median_mode::tests::median_with_one_item ... ok
[INFO] [stdout] test ch11_01_writing_tests::tests::it_works ... ok
[INFO] [stdout] test ch12_minigrep::lib::tests::case_insensitive ... ok
[INFO] [stdout] test ch12_minigrep::lib::tests::config_returns_config_object ... ok
[INFO] [stdout] test ch11_01_writing_tests::tests::greeting_contains_name ... ok
[INFO] [stdout] test ch11_01_writing_tests::tests::smaller_cannot_hold_larger ... ok
[INFO] [stdout] test ch11_01_writing_tests::tests::it_adds_two ... ok
[INFO] [stdout] test ch08_mean_median_mode::tests::mode_when_duplicates_in_list ... ok
[INFO] [stdout] test ch08_mean_median_mode::tests::mode_when_empty_list ... ok
[INFO] [stdout] test ch08_mean_median_mode::tests::mean_calculates_correctly ... ok
[INFO] [stdout] test ch08_pig_latin::tests::test_convert_word_ignores_capital_in_middle ... ok
[INFO] [stdout] test ch08_pig_latin::tests::test_convert_word_is_a_capital ... ok
[INFO] [stdout] test ch12_minigrep::lib::tests::run_returns_message_when_file_doesnt_exist ... ok
[INFO] [stdout] test ch13_01_closures::tests::cacher_call_with_different_values ... ok
[INFO] [stdout] test ch12_minigrep::lib::tests::run_works_when_file_exists ... ok
[INFO] [stdout] test ch13_02_iterators::tests::calling_next_directly ... ok
[INFO] [stdout] test ch11_01_writing_tests::tests::larger_can_hold_smaller ... ok
[INFO] [stdout] test ch13_02_iterators::tests::filters_by_size ... ok
[INFO] [stdout] test ch13_02_iterators::tests::iterator_sum ... ok
[INFO] [stdout] test ch13_02_iterators::tests::iterator_demonstration ... ok
[INFO] [stdout] test ch08_pig_latin::tests::test_convert_word_starts_with_consonant ... ok
[INFO] [stdout] test ch08_pig_latin::tests::test_convert_word_starts_with_vowel ... ok
[INFO] [stdout] test ch13_02_iterators::tests::using_other_iterator_trait_methods ... ok
[INFO] [stdout] test ch12_minigrep::lib::tests::config_returns_message_with_invalid_arguments ... ok
[INFO] [stdout] test ch12_minigrep::lib::tests::case_sensitive ... ok
[INFO] [stdout] test ch15_05_interior_mutability::tests::it_sends_an_over_75_percent_warning_message ... ok
[INFO] [stdout] test ch11_01_writing_tests::tests::greater_than_100 ... ok
[INFO] [stdout] test ch11_01_writing_tests::tests::another ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 33 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.14s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0b0bca1c9f16b5ad9c58302cfb27aa4b391f8bd4c002e459663da657eb9ae3db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b0bca1c9f16b5ad9c58302cfb27aa4b391f8bd4c002e459663da657eb9ae3db", kill_on_drop: false }`
[INFO] [stdout] 0b0bca1c9f16b5ad9c58302cfb27aa4b391f8bd4c002e459663da657eb9ae3db