[INFO] fetching crate minigrep_study 0.1.0...
[INFO] testing minigrep_study-0.1.0 against beta-2021-08-01 for beta-1.55-1
[INFO] extracting crate minigrep_study 0.1.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate minigrep_study 0.1.0 on toolchain beta-2021-08-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate minigrep_study 0.1.0
[INFO] finished tweaking crates.io crate minigrep_study 0.1.0
[INFO] tweaked toml for crates.io crate minigrep_study 0.1.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate minigrep_study 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-08-01" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b4b23efd974f4a145cf35f73cbc121e9986f3571bc09a081259fef00f61f3aaf
[INFO] running `Command { std: "docker" "start" "-a" "b4b23efd974f4a145cf35f73cbc121e9986f3571bc09a081259fef00f61f3aaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4b23efd974f4a145cf35f73cbc121e9986f3571bc09a081259fef00f61f3aaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4b23efd974f4a145cf35f73cbc121e9986f3571bc09a081259fef00f61f3aaf", kill_on_drop: false }`
[INFO] [stdout] b4b23efd974f4a145cf35f73cbc121e9986f3571bc09a081259fef00f61f3aaf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe4f8dee7b7c8ef1a65de3935c9e7445722916c17ac49eb2c8ee64015abd3f14
[INFO] running `Command { std: "docker" "start" "-a" "fe4f8dee7b7c8ef1a65de3935c9e7445722916c17ac49eb2c8ee64015abd3f14", kill_on_drop: false }`
[INFO] [stderr]    Compiling minigrep_study v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `core::fmt`
[INFO] [stdout]  --> src/example/study_iter.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::fmt;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::option`
[INFO] [stdout]  --> src/example/study_iter.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::option;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Shoe`, `generate_workout`, `shoe_in_my_size`
[INFO] [stdout]  --> src/main.rs:2:34
[INFO] [stdout]   |
[INFO] [stdout] 2 | use minigrep_study::{run, Config,generate_workout,shoe_in_my_size,Counter,Shoe};
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.09s
[INFO] running `Command { std: "docker" "inspect" "fe4f8dee7b7c8ef1a65de3935c9e7445722916c17ac49eb2c8ee64015abd3f14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe4f8dee7b7c8ef1a65de3935c9e7445722916c17ac49eb2c8ee64015abd3f14", kill_on_drop: false }`
[INFO] [stdout] fe4f8dee7b7c8ef1a65de3935c9e7445722916c17ac49eb2c8ee64015abd3f14
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb9205f10a03f224f1b99e357b7e5471991c8ab3fc06bb0985bbb1a63efd6533
[INFO] running `Command { std: "docker" "start" "-a" "cb9205f10a03f224f1b99e357b7e5471991c8ab3fc06bb0985bbb1a63efd6533", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `core::fmt`
[INFO] [stdout]  --> src/example/study_iter.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::fmt;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling minigrep_study v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::option`
[INFO] [stdout]  --> src/example/study_iter.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::option;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Shoe`, `generate_workout`, `shoe_in_my_size`
[INFO] [stdout]  --> src/main.rs:2:34
[INFO] [stdout]   |
[INFO] [stdout] 2 | use minigrep_study::{run, Config,generate_workout,shoe_in_my_size,Counter,Shoe};
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^         ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `core::fmt`
[INFO] [stdout]  --> src/example/study_iter.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use core::fmt;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::option`
[INFO] [stdout]  --> src/example/study_iter.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::option;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "cb9205f10a03f224f1b99e357b7e5471991c8ab3fc06bb0985bbb1a63efd6533", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb9205f10a03f224f1b99e357b7e5471991c8ab3fc06bb0985bbb1a63efd6533", kill_on_drop: false }`
[INFO] [stdout] cb9205f10a03f224f1b99e357b7e5471991c8ab3fc06bb0985bbb1a63efd6533
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-08-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 06447a16c442dc299c44f818f6316769193147949dd0c3f77ad302ae99723b4f
[INFO] running `Command { std: "docker" "start" "-a" "06447a16c442dc299c44f818f6316769193147949dd0c3f77ad302ae99723b4f", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `core::fmt`
[INFO] [stderr]  --> src/example/study_iter.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use core::fmt;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::option`
[INFO] [stderr]  --> src/example/study_iter.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::option;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `minigrep_study` (lib) generated 2 warnings
[INFO] [stderr] warning: unused imports: `Shoe`, `generate_workout`, `shoe_in_my_size`
[INFO] [stderr]  --> src/main.rs:2:34
[INFO] [stderr]   |
[INFO] [stderr] 2 | use minigrep_study::{run, Config,generate_workout,shoe_in_my_size,Counter,Shoe};
[INFO] [stderr]   |                                  ^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^         ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `minigrep_study` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr] warning: `minigrep_study` (bin "minigrep_study" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/minigrep_study-97c5082f95a1704e)
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test example::closure::tests::call_with_different_values ... ok
[INFO] [stdout] test example::iter::test_advanced_abstract ... ok
[INFO] [stdout] test example::study_iter::filters_by_size ... ok
[INFO] [stdout] test example::study_iter::test_counter ... ok
[INFO] [stdout] test example::study_iter::using_other_iterator_trait_methods ... ok
[INFO] [stdout] test tests::case_insensitive ... ok
[INFO] [stdout] test tests::case_sensitive ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/minigrep_study-cc333c0d925ddd76)
[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 minigrep_study
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/example/iter.rs - example::iter::advanced_abstract (line 8) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/example/iter.rs - example::iter::advanced_abstract (line 8) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `minigrep`
[INFO] [stdout]  --> src/example/iter.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | let arr = minigrep::example::iter::advanced_abstract();
[INFO] [stdout]   |           ^^^^^^^^ use of undeclared crate or module `minigrep`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/example/iter.rs - example::iter::advanced_abstract (line 8)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.09s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "06447a16c442dc299c44f818f6316769193147949dd0c3f77ad302ae99723b4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06447a16c442dc299c44f818f6316769193147949dd0c3f77ad302ae99723b4f", kill_on_drop: false }`
[INFO] [stdout] 06447a16c442dc299c44f818f6316769193147949dd0c3f77ad302ae99723b4f
