[INFO] fetching crate minigrepbruce 0.1.0...
[INFO] testing minigrepbruce-0.1.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate minigrepbruce 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate minigrepbruce 0.1.0
[INFO] finished tweaking crates.io crate minigrepbruce 0.1.0
[INFO] tweaked toml for crates.io crate minigrepbruce 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate minigrepbruce 0.1.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate minigrepbruce 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] eca07add76101922cfc56379adf5aa10925b55048eecc53dc6cb32629e078cd9
[INFO] running `Command { std: "docker" "start" "-a" "eca07add76101922cfc56379adf5aa10925b55048eecc53dc6cb32629e078cd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "eca07add76101922cfc56379adf5aa10925b55048eecc53dc6cb32629e078cd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eca07add76101922cfc56379adf5aa10925b55048eecc53dc6cb32629e078cd9", kill_on_drop: false }`
[INFO] [stdout] eca07add76101922cfc56379adf5aa10925b55048eecc53dc6cb32629e078cd9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c8cadf27dd60c71eb17010b8448b02c1f329fd7bbc267a5589d69b85dfdfbee
[INFO] running `Command { std: "docker" "start" "-a" "9c8cadf27dd60c71eb17010b8448b02c1f329fd7bbc267a5589d69b85dfdfbee", kill_on_drop: false }`
[INFO] [stderr]    Compiling minigrepbruce v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Shoe` is never constructed
[INFO] [stdout]    --> src/lib.rs:105:8
[INFO] [stdout]     |
[INFO] [stdout] 105 | struct Shoe {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shoese_in_my_size` is never used
[INFO] [stdout]    --> src/lib.rs:110:4
[INFO] [stdout]     |
[INFO] [stdout] 110 | fn shoese_in_my_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Counter` is never constructed
[INFO] [stdout]    --> src/lib.rs:134:8
[INFO] [stdout]     |
[INFO] [stdout] 134 | struct Counter {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/lib.rs:139:8
[INFO] [stdout]     |
[INFO] [stdout] 138 | impl Counter {
[INFO] [stdout]     | ------------ associated function in this implementation
[INFO] [stdout] 139 |     fn new() -> Counter {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_workout` is never used
[INFO] [stdout]  --> src/main.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn generate_workout(intensity: u32, random_number: u32) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cacher` is never constructed
[INFO] [stdout]   --> src/main.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct Cacher<T>
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `value` are never used
[INFO] [stdout]   --> src/main.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | / impl<T> Cacher<T>
[INFO] [stdout] 41 | |     where T: Fn(u32) -> u32
[INFO] [stdout]    | |___________________________- associated items in this implementation
[INFO] [stdout] 42 |   {
[INFO] [stdout] 43 |       fn new(calculation: T) -> Cacher<T>{
[INFO] [stdout]    |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |       fn value(&mut self, arg: u32) -> u32{
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.70s
[INFO] running `Command { std: "docker" "inspect" "9c8cadf27dd60c71eb17010b8448b02c1f329fd7bbc267a5589d69b85dfdfbee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c8cadf27dd60c71eb17010b8448b02c1f329fd7bbc267a5589d69b85dfdfbee", kill_on_drop: false }`
[INFO] [stdout] 9c8cadf27dd60c71eb17010b8448b02c1f329fd7bbc267a5589d69b85dfdfbee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d5e28a6514b28ddade2bea1ff4e28c52dc129303d1f95245c833e5aeeb303116
[INFO] running `Command { std: "docker" "start" "-a" "d5e28a6514b28ddade2bea1ff4e28c52dc129303d1f95245c833e5aeeb303116", kill_on_drop: false }`
[INFO] [stderr]    Compiling minigrepbruce v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Shoe` is never constructed
[INFO] [stdout]    --> src/lib.rs:105:8
[INFO] [stdout]     |
[INFO] [stdout] 105 | struct Shoe {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `shoese_in_my_size` is never used
[INFO] [stdout]    --> src/lib.rs:110:4
[INFO] [stdout]     |
[INFO] [stdout] 110 | fn shoese_in_my_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Counter` is never constructed
[INFO] [stdout]    --> src/lib.rs:134:8
[INFO] [stdout]     |
[INFO] [stdout] 134 | struct Counter {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/lib.rs:139:8
[INFO] [stdout]     |
[INFO] [stdout] 138 | impl Counter {
[INFO] [stdout]     | ------------ associated function in this implementation
[INFO] [stdout] 139 |     fn new() -> Counter {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `generate_workout` is never used
[INFO] [stdout]  --> src/main.rs:5:4
[INFO] [stdout]   |
[INFO] [stdout] 5 | fn generate_workout(intensity: u32, random_number: u32) {
[INFO] [stdout]   |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cacher` is never constructed
[INFO] [stdout]   --> src/main.rs:33:8
[INFO] [stdout]    |
[INFO] [stdout] 33 | struct Cacher<T>
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `value` are never used
[INFO] [stdout]   --> src/main.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 40 | / impl<T> Cacher<T>
[INFO] [stdout] 41 | |     where T: Fn(u32) -> u32
[INFO] [stdout]    | |___________________________- associated items in this implementation
[INFO] [stdout] 42 |   {
[INFO] [stdout] 43 |       fn new(calculation: T) -> Cacher<T>{
[INFO] [stdout]    |          ^^^
[INFO] [stdout] ...
[INFO] [stdout] 50 |       fn value(&mut self, arg: u32) -> u32{
[INFO] [stdout]    |          ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "d5e28a6514b28ddade2bea1ff4e28c52dc129303d1f95245c833e5aeeb303116", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d5e28a6514b28ddade2bea1ff4e28c52dc129303d1f95245c833e5aeeb303116", kill_on_drop: false }`
[INFO] [stdout] d5e28a6514b28ddade2bea1ff4e28c52dc129303d1f95245c833e5aeeb303116
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 412b9d41160009eaabf09daa2fc92997cf283aa11cbe57e6307b44b47e181984
[INFO] running `Command { std: "docker" "start" "-a" "412b9d41160009eaabf09daa2fc92997cf283aa11cbe57e6307b44b47e181984", kill_on_drop: false }`
[INFO] [stderr] warning: struct `Shoe` is never constructed
[INFO] [stderr]    --> src/lib.rs:105:8
[INFO] [stderr]     |
[INFO] [stderr] 105 | struct Shoe {
[INFO] [stderr]     |        ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `shoese_in_my_size` is never used
[INFO] [stderr]    --> src/lib.rs:110:4
[INFO] [stderr]     |
[INFO] [stderr] 110 | fn shoese_in_my_size(shoes: Vec<Shoe>, shoe_size: u32) -> Vec<Shoe> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Counter` is never constructed
[INFO] [stderr]    --> src/lib.rs:134:8
[INFO] [stderr]     |
[INFO] [stderr] 134 | struct Counter {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function `new` is never used
[INFO] [stderr]    --> src/lib.rs:139:8
[INFO] [stderr]     |
[INFO] [stderr] 138 | impl Counter {
[INFO] [stderr]     | ------------ associated function in this implementation
[INFO] [stderr] 139 |     fn new() -> Counter {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `minigrepbruce` (lib) generated 4 warnings
[INFO] [stderr] warning: function `generate_workout` is never used
[INFO] [stderr]  --> src/main.rs:5:4
[INFO] [stderr]   |
[INFO] [stderr] 5 | fn generate_workout(intensity: u32, random_number: u32) {
[INFO] [stderr]   |    ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Cacher` is never constructed
[INFO] [stderr]   --> src/main.rs:33:8
[INFO] [stderr]    |
[INFO] [stderr] 33 | struct Cacher<T>
[INFO] [stderr]    |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated items `new` and `value` are never used
[INFO] [stderr]   --> src/main.rs:43:8
[INFO] [stderr]    |
[INFO] [stderr] 40 | / impl<T> Cacher<T>
[INFO] [stderr] 41 | |     where T: Fn(u32) -> u32
[INFO] [stderr]    | |___________________________- associated items in this implementation
[INFO] [stderr] 42 |   {
[INFO] [stderr] 43 |       fn new(calculation: T) -> Cacher<T>{
[INFO] [stderr]    |          ^^^
[INFO] [stderr] ...
[INFO] [stderr] 50 |       fn value(&mut self, arg: u32) -> u32{
[INFO] [stderr]    |          ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `minigrepbruce` (bin "minigrepbruce" test) generated 3 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/minigrepbruce-ffd88ee51dd5a777)
[INFO] [stdout] running 6 tests
[INFO] [stdout] test calling_next_directly ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/minigrepbruce-59b33c14437f4e98)
[INFO] [stdout] test filters_by_size ... ok
[INFO] [stderr]    Doc-tests minigrepbruce
[INFO] [stdout] test tests::case_insensitive ... ok
[INFO] [stdout] test tests::case_sensitive ... ok
[INFO] [stdout] test using_other_iterator_trait_methods ... ok
[INFO] [stdout] test tests::iterator_demonstration ... 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] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - add_one (line 183) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - add_one (line 183) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `my_crate`
[INFO] [stdout]  --> src/lib.rs:185:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | let answer = my_crate::add_one(arg);
[INFO] [stdout]   |              ^^^^^^^^ use of unresolved module or unlinked crate `my_crate`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `my_crate`, use `cargo add my_crate` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 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/lib.rs - add_one (line 183)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "412b9d41160009eaabf09daa2fc92997cf283aa11cbe57e6307b44b47e181984", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "412b9d41160009eaabf09daa2fc92997cf283aa11cbe57e6307b44b47e181984", kill_on_drop: false }`
[INFO] [stdout] 412b9d41160009eaabf09daa2fc92997cf283aa11cbe57e6307b44b47e181984