[INFO] cloning repository https://github.com/cenviity/learn-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cenviity/learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcenviity%2Flearn-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcenviity%2Flearn-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f9a4c887b5c6887b4254634dd3ca912e9ddddee9
[INFO] testing cenviity/learn-rust against master#ec6f9a5b4413f74386267ef8efc93712c2ce6db6 for pr-155739
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcenviity%2Flearn-rust" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/cenviity/learn-rust
[INFO] finished tweaking git repo https://github.com/cenviity/learn-rust
[INFO] tweaked toml for git repo https://github.com/cenviity/learn-rust written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cenviity/learn-rust on toolchain ec6f9a5b4413f74386267ef8efc93712c2ce6db6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/cenviity/learn-rust 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" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.79
[INFO] [stderr]   Downloaded getrandom v0.2.13
[INFO] [stderr]   Downloaded syn v2.0.58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17b9828f9b03cd8b62aac7189725a66dd4035878d77cd98fa475dec473f5fffb
[INFO] running `Command { std: "docker" "start" "-a" "17b9828f9b03cd8b62aac7189725a66dd4035878d77cd98fa475dec473f5fffb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17b9828f9b03cd8b62aac7189725a66dd4035878d77cd98fa475dec473f5fffb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17b9828f9b03cd8b62aac7189725a66dd4035878d77cd98fa475dec473f5fffb", kill_on_drop: false }`
[INFO] [stdout] 17b9828f9b03cd8b62aac7189725a66dd4035878d77cd98fa475dec473f5fffb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=forbid" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03adf5d012450b35a325116ddd909fd631a3861bc30a22204d89467b64c495a0
[INFO] running `Command { std: "docker" "start" "-a" "03adf5d012450b35a325116ddd909fd631a3861bc30a22204d89467b64c495a0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling gui v0.1.0 (/opt/rustwide/workdir/17/gui)
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/rustwide/workdir/12/minigrep)
[INFO] [stderr]    Compiling hello v0.1.0 (/opt/rustwide/workdir/20/hello)
[INFO] [stderr]    Compiling blog v0.1.0 (/opt/rustwide/workdir/17/blog)
[INFO] [stderr]    Compiling hello-macro v0.1.0 (/opt/rustwide/workdir/19/hello-macro)
[INFO] [stderr]    Compiling default-generic-type-parameters v0.1.0 (/opt/rustwide/workdir/19/default-generic-type-parameters)
[INFO] [stderr]    Compiling art v0.1.0 (/opt/rustwide/workdir/14/art)
[INFO] [stderr]    Compiling aggregator v0.1.0 (/opt/rustwide/workdir/10/aggregator)
[INFO] [stderr]    Compiling result v0.1.0 (/opt/rustwide/workdir/09/result)
[INFO] [stderr]    Compiling my-crate v0.1.0 (/opt/rustwide/workdir/14/my-crate)
[INFO] [stderr]    Compiling branches v0.1.0 (/opt/rustwide/workdir/03/branches)
[INFO] [stderr]    Compiling message-passing v0.1.0 (/opt/rustwide/workdir/16/message-passing)
[INFO] [stderr]    Compiling mutable-static-variables v0.1.0 (/opt/rustwide/workdir/19/mutable-static-variables)
[INFO] [stdout] warning: struct `Millimeters` is never constructed
[INFO] [stdout]  --> 19/default-generic-type-parameters/src/lib.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Millimeters(u32);
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Meters` is never constructed
[INFO] [stdout]  --> 19/default-generic-type-parameters/src/lib.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Meters(u32);
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]   --> 19/mutable-static-variables/src/main.rs:13:33
[INFO] [stdout]    |
[INFO] [stdout] 13 |         println!("COUNTER: {}", COUNTER);
[INFO] [stdout]    |                                 ^^^^^^^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling generic-data-types-in-structs v0.1.0 (/opt/rustwide/workdir/10/generic-data-types-in-structs)
[INFO] [stderr]    Compiling pattern-syntax v0.1.0 (/opt/rustwide/workdir/18/pattern-syntax)
[INFO] [stderr]    Compiling shared-state v0.1.0 (/opt/rustwide/workdir/16/shared-state)
[INFO] [stderr]    Compiling strings v0.1.0 (/opt/rustwide/workdir/08/strings)
[INFO] [stderr]    Compiling panic v0.1.0 (/opt/rustwide/workdir/09/panic)
[INFO] [stderr]    Compiling generic-data-types v0.1.0 (/opt/rustwide/workdir/10/generic-data-types)
[INFO] [stderr]    Compiling object-oriented-characteristics v0.1.0 (/opt/rustwide/workdir/17/object-oriented-characteristics)
[INFO] [stderr]    Compiling refcell v0.1.0 (/opt/rustwide/workdir/15/refcell)
[INFO] [stderr]    Compiling hash-maps v0.1.0 (/opt/rustwide/workdir/08/hash-maps)
[INFO] [stderr]    Compiling iterators v0.1.0 (/opt/rustwide/workdir/13/iterators)
[INFO] [stderr]    Compiling newtype v0.1.0 (/opt/rustwide/workdir/19/newtype)
[INFO] [stderr]    Compiling ownership v0.1.0 (/opt/rustwide/workdir/04/ownership)
[INFO] [stderr]    Compiling type-alias v0.1.0 (/opt/rustwide/workdir/19/type-alias)
[INFO] [stderr]    Compiling unsafe-functions-methods v0.1.0 (/opt/rustwide/workdir/19/unsafe-functions-methods)
[INFO] [stderr]    Compiling ownership-recap v0.1.0 (/opt/rustwide/workdir/04/ownership-recap)
[INFO] [stderr]    Compiling data-types v0.1.0 (/opt/rustwide/workdir/03/data-types)
[INFO] [stderr]    Compiling unsafe-traits v0.1.0 (/opt/rustwide/workdir/19/unsafe-traits)
[INFO] [stderr]    Compiling lifetimes v0.1.0 (/opt/rustwide/workdir/10/lifetimes)
[INFO] [stderr]    Compiling if-let-patterns v0.1.0 (/opt/rustwide/workdir/18/if-let-patterns)
[INFO] [stderr]    Compiling drop v0.1.0 (/opt/rustwide/workdir/15/drop)
[INFO] [stderr]    Compiling function-parameter-patterns v0.1.0 (/opt/rustwide/workdir/18/function-parameter-patterns)
[INFO] [stdout] warning: trait `Foo` is never used
[INFO] [stdout]  --> 19/unsafe-traits/src/main.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | unsafe trait Foo {
[INFO] [stdout]   |              ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling hello-world v0.1.0 (/opt/rustwide/workdir/01/hello-world)
[INFO] [stderr]    Compiling if-let v0.1.0 (/opt/rustwide/workdir/06/if-let)
[INFO] [stderr]    Compiling functions v0.1.0 (/opt/rustwide/workdir/03/functions)
[INFO] [stderr]    Compiling fully-qualified-syntax v0.1.0 (/opt/rustwide/workdir/19/fully-qualified-syntax)
[INFO] [stderr]    Compiling adder v0.1.0 (/opt/rustwide/workdir/11/adder)
[INFO] [stderr]    Compiling declarative-macros v0.1.0 (/opt/rustwide/workdir/19/declarative-macros)
[INFO] [stderr]    Compiling deref v0.1.0 (/opt/rustwide/workdir/15/deref)
[INFO] [stderr]    Compiling function-pointers v0.1.0 (/opt/rustwide/workdir/19/function-pointers)
[INFO] [stderr]    Compiling rc v0.1.0 (/opt/rustwide/workdir/15/rc)
[INFO] [stderr]    Compiling reference-cycles v0.1.0 (/opt/rustwide/workdir/15/reference-cycles)
[INFO] [stderr]    Compiling restaurant v0.1.0 (/opt/rustwide/workdir/07/restaurant)
[INFO] [stderr]    Compiling closures v0.1.0 (/opt/rustwide/workdir/13/closures)
[INFO] [stderr]    Compiling defining-enums v0.1.0 (/opt/rustwide/workdir/06/defining-enums)
[INFO] [stderr]    Compiling hello-cargo v0.1.0 (/opt/rustwide/workdir/01/hello-cargo)
[INFO] [stderr]    Compiling match-construct v0.1.0 (/opt/rustwide/workdir/06/match-construct)
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling slice_type v0.1.0 (/opt/rustwide/workdir/04/slice-type)
[INFO] [stderr]    Compiling supertrait v0.1.0 (/opt/rustwide/workdir/19/supertrait)
[INFO] [stderr]    Compiling threads v0.1.0 (/opt/rustwide/workdir/16/threads)
[INFO] [stderr]    Compiling variables v0.1.0 (/opt/rustwide/workdir/03/variables)
[INFO] [stderr]    Compiling loops v0.1.0 (/opt/rustwide/workdir/03/loops)
[INFO] [stderr]    Compiling while-let-patterns v0.1.0 (/opt/rustwide/workdir/18/while-let-patterns)
[INFO] [stderr]    Compiling defining-structs v0.1.0 (/opt/rustwide/workdir/05/defining-structs)
[INFO] [stderr]    Compiling test-organisation v0.1.0 (/opt/rustwide/workdir/11/test-organisation)
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling traits v0.1.0 (/opt/rustwide/workdir/10/traits)
[INFO] [stderr]    Compiling controlling-test-runs v0.1.0 (/opt/rustwide/workdir/11/controlling-test-runs)
[INFO] [stderr]    Compiling boxes v0.1.0 (/opt/rustwide/workdir/15/boxes)
[INFO] [stderr]    Compiling raw-pointer v0.1.0 (/opt/rustwide/workdir/19/raw-pointer)
[INFO] [stderr]    Compiling references-and-borrowing v0.1.0 (/opt/rustwide/workdir/04/references-and-borrowing)
[INFO] [stderr]    Compiling vectors v0.1.0 (/opt/rustwide/workdir/08/vectors)
[INFO] [stderr]    Compiling example-using-structs v0.1.0 (/opt/rustwide/workdir/05/example-using-structs)
[INFO] [stderr]    Compiling for-patterns v0.1.0 (/opt/rustwide/workdir/18/for-patterns)
[INFO] [stderr]    Compiling getrandom v0.2.13
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling guessing-game v0.1.0 (/opt/rustwide/workdir/02/guessing-game)
[INFO] [stderr]    Compiling hello-macro-derive v0.1.0 (/opt/rustwide/workdir/19/hello-macro/hello-macro-derive)
[INFO] [stderr]    Compiling pancakes v0.1.0 (/opt/rustwide/workdir/19/pancakes)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.73s
[INFO] running `Command { std: "docker" "inspect" "03adf5d012450b35a325116ddd909fd631a3861bc30a22204d89467b64c495a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03adf5d012450b35a325116ddd909fd631a3861bc30a22204d89467b64c495a0", kill_on_drop: false }`
[INFO] [stdout] 03adf5d012450b35a325116ddd909fd631a3861bc30a22204d89467b64c495a0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=forbid" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c74a93be0e761a37b65b18755a84af4ff4c6b942642a653653c1ac4932f97343
[INFO] running `Command { std: "docker" "start" "-a" "c74a93be0e761a37b65b18755a84af4ff4c6b942642a653653c1ac4932f97343", kill_on_drop: false }`
[INFO] [stdout] warning: struct `Millimeters` is never constructed
[INFO] [stdout]  --> 19/default-generic-type-parameters/src/lib.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Millimeters(u32);
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Meters` is never constructed
[INFO] [stdout]  --> 19/default-generic-type-parameters/src/lib.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Meters(u32);
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling art v0.1.0 (/opt/rustwide/workdir/14/art)
[INFO] [stderr]    Compiling test-organisation v0.1.0 (/opt/rustwide/workdir/11/test-organisation)
[INFO] [stderr]    Compiling aggregator v0.1.0 (/opt/rustwide/workdir/10/aggregator)
[INFO] [stderr]    Compiling hello v0.1.0 (/opt/rustwide/workdir/20/hello)
[INFO] [stderr]    Compiling blog v0.1.0 (/opt/rustwide/workdir/17/blog)
[INFO] [stderr]    Compiling gui v0.1.0 (/opt/rustwide/workdir/17/gui)
[INFO] [stderr]    Compiling default-generic-type-parameters v0.1.0 (/opt/rustwide/workdir/19/default-generic-type-parameters)
[INFO] [stderr]    Compiling minigrep v0.1.0 (/opt/rustwide/workdir/12/minigrep)
[INFO] [stderr]    Compiling hello-cargo v0.1.0 (/opt/rustwide/workdir/01/hello-cargo)
[INFO] [stderr]    Compiling loops v0.1.0 (/opt/rustwide/workdir/03/loops)
[INFO] [stderr]    Compiling shared-state v0.1.0 (/opt/rustwide/workdir/16/shared-state)
[INFO] [stderr]    Compiling generic-data-types-in-structs v0.1.0 (/opt/rustwide/workdir/10/generic-data-types-in-structs)
[INFO] [stderr]    Compiling pancakes v0.1.0 (/opt/rustwide/workdir/19/pancakes)
[INFO] [stderr]    Compiling guessing-game v0.1.0 (/opt/rustwide/workdir/02/guessing-game)
[INFO] [stderr]    Compiling function-parameter-patterns v0.1.0 (/opt/rustwide/workdir/18/function-parameter-patterns)
[INFO] [stderr]    Compiling supertrait v0.1.0 (/opt/rustwide/workdir/19/supertrait)
[INFO] [stderr]    Compiling variables v0.1.0 (/opt/rustwide/workdir/03/variables)
[INFO] [stderr]    Compiling newtype v0.1.0 (/opt/rustwide/workdir/19/newtype)
[INFO] [stderr]    Compiling defining-enums v0.1.0 (/opt/rustwide/workdir/06/defining-enums)
[INFO] [stderr]    Compiling raw-pointer v0.1.0 (/opt/rustwide/workdir/19/raw-pointer)
[INFO] [stderr]    Compiling my-crate v0.1.0 (/opt/rustwide/workdir/14/my-crate)
[INFO] [stderr]    Compiling for-patterns v0.1.0 (/opt/rustwide/workdir/18/for-patterns)
[INFO] [stderr]    Compiling controlling-test-runs v0.1.0 (/opt/rustwide/workdir/11/controlling-test-runs)
[INFO] [stderr]    Compiling example-using-structs v0.1.0 (/opt/rustwide/workdir/05/example-using-structs)
[INFO] [stderr]    Compiling restaurant v0.1.0 (/opt/rustwide/workdir/07/restaurant)
[INFO] [stderr]    Compiling boxes v0.1.0 (/opt/rustwide/workdir/15/boxes)
[INFO] [stderr]    Compiling defining-structs v0.1.0 (/opt/rustwide/workdir/05/defining-structs)
[INFO] [stderr]    Compiling functions v0.1.0 (/opt/rustwide/workdir/03/functions)
[INFO] [stderr]    Compiling reference-cycles v0.1.0 (/opt/rustwide/workdir/15/reference-cycles)
[INFO] [stderr]    Compiling hash-maps v0.1.0 (/opt/rustwide/workdir/08/hash-maps)
[INFO] [stderr]    Compiling iterators v0.1.0 (/opt/rustwide/workdir/13/iterators)
[INFO] [stderr]    Compiling threads v0.1.0 (/opt/rustwide/workdir/16/threads)
[INFO] [stderr]    Compiling data-types v0.1.0 (/opt/rustwide/workdir/03/data-types)
[INFO] [stderr]    Compiling references-and-borrowing v0.1.0 (/opt/rustwide/workdir/04/references-and-borrowing)
[INFO] [stderr]    Compiling if-let v0.1.0 (/opt/rustwide/workdir/06/if-let)
[INFO] [stdout] warning: struct `Millimeters` is never constructed
[INFO] [stdout]  --> 19/default-generic-type-parameters/src/lib.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Millimeters(u32);
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Meters` is never constructed
[INFO] [stdout]  --> 19/default-generic-type-parameters/src/lib.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Meters(u32);
[INFO] [stdout]   |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling object-oriented-characteristics v0.1.0 (/opt/rustwide/workdir/17/object-oriented-characteristics)
[INFO] [stderr]    Compiling vectors v0.1.0 (/opt/rustwide/workdir/08/vectors)
[INFO] [stderr]    Compiling rc v0.1.0 (/opt/rustwide/workdir/15/rc)
[INFO] [stderr]    Compiling pattern-syntax v0.1.0 (/opt/rustwide/workdir/18/pattern-syntax)
[INFO] [stderr]    Compiling ownership v0.1.0 (/opt/rustwide/workdir/04/ownership)
[INFO] [stderr]    Compiling while-let-patterns v0.1.0 (/opt/rustwide/workdir/18/while-let-patterns)
[INFO] [stderr]    Compiling type-alias v0.1.0 (/opt/rustwide/workdir/19/type-alias)
[INFO] [stderr]    Compiling lifetimes v0.1.0 (/opt/rustwide/workdir/10/lifetimes)
[INFO] [stderr]    Compiling declarative-macros v0.1.0 (/opt/rustwide/workdir/19/declarative-macros)
[INFO] [stderr]    Compiling hello-world v0.1.0 (/opt/rustwide/workdir/01/hello-world)
[INFO] [stderr]    Compiling result v0.1.0 (/opt/rustwide/workdir/09/result)
[INFO] [stderr]    Compiling closures v0.1.0 (/opt/rustwide/workdir/13/closures)
[INFO] [stderr]    Compiling generic-data-types v0.1.0 (/opt/rustwide/workdir/10/generic-data-types)
[INFO] [stderr]    Compiling if-let-patterns v0.1.0 (/opt/rustwide/workdir/18/if-let-patterns)
[INFO] [stderr]    Compiling drop v0.1.0 (/opt/rustwide/workdir/15/drop)
[INFO] [stderr]    Compiling branches v0.1.0 (/opt/rustwide/workdir/03/branches)
[INFO] [stderr]    Compiling ownership-recap v0.1.0 (/opt/rustwide/workdir/04/ownership-recap)
[INFO] [stderr]    Compiling fully-qualified-syntax v0.1.0 (/opt/rustwide/workdir/19/fully-qualified-syntax)
[INFO] [stderr]    Compiling slice_type v0.1.0 (/opt/rustwide/workdir/04/slice-type)
[INFO] [stderr]    Compiling traits v0.1.0 (/opt/rustwide/workdir/10/traits)
[INFO] [stderr]    Compiling unsafe-functions-methods v0.1.0 (/opt/rustwide/workdir/19/unsafe-functions-methods)
[INFO] [stderr]    Compiling unsafe-traits v0.1.0 (/opt/rustwide/workdir/19/unsafe-traits)
[INFO] [stderr]    Compiling mutable-static-variables v0.1.0 (/opt/rustwide/workdir/19/mutable-static-variables)
[INFO] [stderr]    Compiling panic v0.1.0 (/opt/rustwide/workdir/09/panic)
[INFO] [stderr]    Compiling deref v0.1.0 (/opt/rustwide/workdir/15/deref)
[INFO] [stderr]    Compiling refcell v0.1.0 (/opt/rustwide/workdir/15/refcell)
[INFO] [stderr]    Compiling adder v0.1.0 (/opt/rustwide/workdir/11/adder)
[INFO] [stderr]    Compiling strings v0.1.0 (/opt/rustwide/workdir/08/strings)
[INFO] [stderr]    Compiling message-passing v0.1.0 (/opt/rustwide/workdir/16/message-passing)
[INFO] [stderr]    Compiling function-pointers v0.1.0 (/opt/rustwide/workdir/19/function-pointers)
[INFO] [stdout] warning: trait `Foo` is never used
[INFO] [stdout]  --> 19/unsafe-traits/src/main.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | unsafe trait Foo {
[INFO] [stdout]   |              ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling match-construct v0.1.0 (/opt/rustwide/workdir/06/match-construct)
[INFO] [stdout] warning: creating a shared reference to mutable static
[INFO] [stdout]   --> 19/mutable-static-variables/src/main.rs:13:33
[INFO] [stdout]    |
[INFO] [stdout] 13 |         println!("COUNTER: {}", COUNTER);
[INFO] [stdout]    |                                 ^^^^^^^ shared reference to mutable static
[INFO] [stdout]    |
[INFO] [stdout]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stdout]    = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.46s
[INFO] running `Command { std: "docker" "inspect" "c74a93be0e761a37b65b18755a84af4ff4c6b942642a653653c1ac4932f97343", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c74a93be0e761a37b65b18755a84af4ff4c6b942642a653653c1ac4932f97343", kill_on_drop: false }`
[INFO] [stdout] c74a93be0e761a37b65b18755a84af4ff4c6b942642a653653c1ac4932f97343
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=forbid" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+ec6f9a5b4413f74386267ef8efc93712c2ce6db6" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 64860d359ea3db5b2aaaa2ea789cdadcb7cdb9bbc475aef8ffec7aa52e9d75a5
[INFO] running `Command { std: "docker" "start" "-a" "64860d359ea3db5b2aaaa2ea789cdadcb7cdb9bbc475aef8ffec7aa52e9d75a5", kill_on_drop: false }`
[INFO] [stderr] warning: struct `Millimeters` is never constructed
[INFO] [stderr]  --> 19/default-generic-type-parameters/src/lib.rs:3:8
[INFO] [stderr]   |
[INFO] [stderr] 3 | struct Millimeters(u32);
[INFO] [stderr]   |        ^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Meters` is never constructed
[INFO] [stderr]  --> 19/default-generic-type-parameters/src/lib.rs:4:8
[INFO] [stderr]   |
[INFO] [stderr] 4 | struct Meters(u32);
[INFO] [stderr]   |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `default-generic-type-parameters` (lib) generated 2 warnings
[INFO] [stderr] warning: trait `Foo` is never used
[INFO] [stderr]  --> 19/unsafe-traits/src/main.rs:1:14
[INFO] [stderr]   |
[INFO] [stderr] 1 | unsafe trait Foo {
[INFO] [stderr]   |              ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: creating a shared reference to mutable static
[INFO] [stderr]   --> 19/mutable-static-variables/src/main.rs:13:33
[INFO] [stderr]    |
[INFO] [stderr] 13 |         println!("COUNTER: {}", COUNTER);
[INFO] [stderr]    |                                 ^^^^^^^ shared reference to mutable static
[INFO] [stderr]    |
[INFO] [stderr]    = note: shared references to mutable statics are dangerous; it's undefined behavior if the static is mutated or if a mutable reference is created for it while the shared reference lives
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[INFO] [stderr]    = note: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `unsafe-traits` (bin "unsafe-traits" test) generated 1 warning
[INFO] [stderr] warning: `mutable-static-variables` (bin "mutable-static-variables" test) generated 1 warning
[INFO] [stderr] warning: `default-generic-type-parameters` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/adder-2caf5344f9efd889)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/aggregator-e8fe878a1d827ef2)
[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 unittests src/main.rs (/opt/rustwide/target/debug/deps/aggregator-e23fb9e4c57725e5)
[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 unittests src/lib.rs (/opt/rustwide/target/debug/deps/art-57b21b04046017b0)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/art-908e6a2f56f1dca4)
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/blog-5ea79ce549febe69)
[INFO] [stdout] 
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[INFO] [stdout] 
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[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/blog-797ba35dc46afad9)
[INFO] [stdout] 
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/boxes-f01c3f34f76ad65e)
[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 unittests src/main.rs (/opt/rustwide/target/debug/deps/branches-75b4c7314fcfce5e)
[INFO] [stdout] 
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[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 unittests src/main.rs (/opt/rustwide/target/debug/deps/closures-be83ef5ebef77f56)
[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 unittests src/lib.rs (/opt/rustwide/target/debug/deps/controlling_test_runs-e5912cd3c0a8d705)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::expensive_test ... ignored
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/data_types-36cc540754ec47d4)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
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[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 unittests src/lib.rs (/opt/rustwide/target/debug/deps/declarative_macros-f7f0f7a288d075bd)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
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[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/default_generic_type_parameters-245446bc962af5c6)
[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 unittests src/main.rs (/opt/rustwide/target/debug/deps/default_generic_type_parameters-8e18c5893b34aaa2)
[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 unittests src/main.rs (/opt/rustwide/target/debug/deps/defining_enums-61ae9e3cc06467b0)
[INFO] [stdout] 
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[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/defining_structs-d41a537620ca12a4)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
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[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/deref-bc397aa0a42f94bb)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/drop-23bf6336e164f42f)
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[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 unittests src/main.rs (/opt/rustwide/target/debug/deps/example_using_structs-938bd0e79074543b)
[INFO] [stdout] 
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/for_patterns-c6f8b384d6f48551)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/fully_qualified_syntax-6361a3407cfa2b23)
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/function_parameter_patterns-ecdeab4a4c72dc93)
[INFO] [stdout] 
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/function_pointers-9660e699a0ebb5ba)
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/functions-a7c6cdedd7d1da2b)
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/generic_data_types-b6b4731e58b0880e)
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[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::filters_by_size ... ok
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/lifetimes-ac5b442bb260f9f8)
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[INFO] [stdout] test tests::case_insensitive ... ok
[INFO] [stdout] test tests::case_sensitive ... ok
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/minigrep-688268738d652d8e)
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mutable_static_variables-c61efc40f7714fd1)
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[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 unittests src/lib.rs (/opt/rustwide/target/debug/deps/my_crate-af386b7126d6b15b)
[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 unittests src/main.rs (/opt/rustwide/target/debug/deps/newtype-91db77106375ea0f)
[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 unittests src/lib.rs (/opt/rustwide/target/debug/deps/object_oriented_characteristics-128222d05e0933a9)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ownership-3979a983eb95a97d)
[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 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 unittests src/main.rs (/opt/rustwide/target/debug/deps/ownership_recap-d59573283f663efc)
[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 unittests src/main.rs (/opt/rustwide/target/debug/deps/pancakes-bb2eadfd40e353f8)
[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 unittests src/main.rs (/opt/rustwide/target/debug/deps/panic-f13cae91157101ca)
[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 unittests src/main.rs (/opt/rustwide/target/debug/deps/pattern_syntax-9e4dfe1da2c29c1b)
[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 unittests src/main.rs (/opt/rustwide/target/debug/deps/raw_pointer-b859fabe4a6a36d2)
[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 unittests src/main.rs (/opt/rustwide/target/debug/deps/rc-a2ce6b392901edca)
[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 unittests src/lib.rs (/opt/rustwide/target/debug/deps/refcell-5389bd1bd6ee9525)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_sends_an_over_75_percent_warning_message ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::it_sends_an_over_75_percent_warning_message stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::it_sends_an_over_75_percent_warning_message' (78) panicked at 15/refcell/src/lib.rs:60:53:
[INFO] [stdout] RefCell already borrowed
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x62ff6f280daa - std[29689e6404d28ef9]::backtrace_rs::backtrace::libunwind::trace
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x62ff6f280daa - std[29689e6404d28ef9]::backtrace_rs::backtrace::trace_unsynchronized::<std[29689e6404d28ef9]::sys::backtrace::_print_fmt::{closure#1}>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x62ff6f280daa - std[29689e6404d28ef9]::sys::backtrace::_print_fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x62ff6f280daa - <<std[29689e6404d28ef9]::sys::backtrace::BacktraceLock>::print::DisplayBacktrace as core[e929cb53b82a81ca]::fmt::Display>::fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x62ff6f294bca - <core[e929cb53b82a81ca]::fmt::rt::Argument>::fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x62ff6f294bca - core[e929cb53b82a81ca]::fmt::write
[INFO] [stdout]    6:     0x62ff6f2855e2 - std[29689e6404d28ef9]::io::default_write_fmt::<alloc[9d7caffeb3b5d2c6]::vec::Vec<u8>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/io/mod.rs:621:11
[INFO] [stdout]    7:     0x62ff6f2855e2 - <alloc[9d7caffeb3b5d2c6]::vec::Vec<u8> as std[29689e6404d28ef9]::io::Write>::write_fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/io/mod.rs:1976:13
[INFO] [stdout]    8:     0x62ff6f25fdaf - <std[29689e6404d28ef9]::sys::backtrace::BacktraceLock>::print
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x62ff6f25fdaf - std[29689e6404d28ef9]::panicking::default_hook::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x62ff6f279209 - std[29689e6404d28ef9]::panicking::default_hook
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x62ff6f215a5c - <alloc[9d7caffeb3b5d2c6]::boxed::Box<dyn for<'a, 'b> core[e929cb53b82a81ca]::ops::function::Fn<(&'a std[29689e6404d28ef9]::panic::PanicHookInfo<'b>,), Output = ()> + core[e929cb53b82a81ca]::marker::Send + core[e929cb53b82a81ca]::marker::Sync> as core[e929cb53b82a81ca]::ops::function::Fn<(&std[29689e6404d28ef9]::panic::PanicHookInfo,)>>::call
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/alloc/src/boxed.rs:2285:9
[INFO] [stdout]   12:     0x62ff6f215a5c - test[a24b3028667022f7]::test_main_inner::<test[a24b3028667022f7]::test_main_static::{closure#0}>::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:155:21
[INFO] [stdout]   13:     0x62ff6f2793c2 - <alloc[9d7caffeb3b5d2c6]::boxed::Box<dyn for<'a, 'b> core[e929cb53b82a81ca]::ops::function::Fn<(&'a std[29689e6404d28ef9]::panic::PanicHookInfo<'b>,), Output = ()> + core[e929cb53b82a81ca]::marker::Send + core[e929cb53b82a81ca]::marker::Sync> as core[e929cb53b82a81ca]::ops::function::Fn<(&std[29689e6404d28ef9]::panic::PanicHookInfo,)>>::call
[INFO] [stderr] error: test failed, to rerun pass `-p refcell --lib`
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/alloc/src/boxed.rs:2285:9
[INFO] [stdout]   14:     0x62ff6f2793c2 - std[29689e6404d28ef9]::panicking::panic_with_hook
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x62ff6f25fe68 - std[29689e6404d28ef9]::panicking::panic_handler::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x62ff6f255079 - std[29689e6404d28ef9]::sys::backtrace::__rust_end_short_backtrace::<std[29689e6404d28ef9]::panicking::panic_handler::{closure#0}, !>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x62ff6f260b7d - __rustc[3aed6af316653e63]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x62ff6f2952ec - core[e929cb53b82a81ca]::panicking::panic_fmt
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x62ff6f294fdf - core[e929cb53b82a81ca]::cell::panic_already_borrowed::do_panic::runtime
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/panic.rs:172:21
[INFO] [stdout]   20:     0x62ff6f294fdf - core[e929cb53b82a81ca]::cell::panic_already_borrowed::do_panic
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/intrinsics/mod.rs:2450:9
[INFO] [stdout]   21:     0x62ff6f294fdf - core[e929cb53b82a81ca]::cell::panic_already_borrowed
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/panic.rs:177:9
[INFO] [stdout]   22:     0x62ff6f2081b3 - <core[e929cb53b82a81ca]::cell::RefCell<alloc[9d7caffeb3b5d2c6]::vec::Vec<alloc[9d7caffeb3b5d2c6]::string::String>>>::borrow_mut
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/cell.rs:1224:25
[INFO] [stdout]   23:     0x62ff6f208ac5 - <refcell[4f986857ce4285d3]::tests::MockMessenger as refcell[4f986857ce4285d3]::Messenger>::send
[INFO] [stdout]                                at /opt/rustwide/workdir/15/refcell/src/lib.rs:60:53
[INFO] [stdout]   24:     0x62ff6f207d9e - <refcell[4f986857ce4285d3]::LimitTracker<refcell[4f986857ce4285d3]::tests::MockMessenger>>::set_value
[INFO] [stdout]                                at /opt/rustwide/workdir/15/refcell/src/lib.rs:35:18
[INFO] [stdout]   25:     0x62ff6f208320 - refcell[4f986857ce4285d3]::tests::it_sends_an_over_75_percent_warning_message
[INFO] [stdout]                                at /opt/rustwide/workdir/15/refcell/src/lib.rs:72:23
[INFO] [stdout]   26:     0x62ff6f207c07 - refcell[4f986857ce4285d3]::tests::it_sends_an_over_75_percent_warning_message::{closure#0}
[INFO] [stdout]                                at /opt/rustwide/workdir/15/refcell/src/lib.rs:68:53
[INFO] [stdout]   27:     0x62ff6f208c66 - <refcell[4f986857ce4285d3]::tests::it_sends_an_over_75_percent_warning_message::{closure#0} as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   28:     0x62ff6f208d3b - <fn() -> core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String> as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   29:     0x62ff6f208d3b - test[a24b3028667022f7]::__rust_begin_short_backtrace::<core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String>, fn() -> core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:724:18
[INFO] [stdout]   30:     0x62ff6f21652b - test[a24b3028667022f7]::run_test_in_process::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:747:74
[INFO] [stdout]   31:     0x62ff6f21652b - <core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<test[a24b3028667022f7]::run_test_in_process::{closure#0}> as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   32:     0x62ff6f21652b - std[29689e6404d28ef9]::panicking::catch_unwind::do_call::<core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<test[a24b3028667022f7]::run_test_in_process::{closure#0}>, core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:581:40
[INFO] [stdout]   33:     0x62ff6f21652b - std[29689e6404d28ef9]::panicking::catch_unwind::<core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String>, core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<test[a24b3028667022f7]::run_test_in_process::{closure#0}>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:544:19
[INFO] [stdout]   34:     0x62ff6f21652b - std[29689e6404d28ef9]::panic::catch_unwind::<core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<test[a24b3028667022f7]::run_test_in_process::{closure#0}>, core[e929cb53b82a81ca]::result::Result<(), alloc[9d7caffeb3b5d2c6]::string::String>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panic.rs:359:14
[INFO] [stdout]   35:     0x62ff6f21652b - test[a24b3028667022f7]::run_test_in_process
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:747:27
[INFO] [stdout]   36:     0x62ff6f21652b - test[a24b3028667022f7]::run_test::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:668:43
[INFO] [stdout]   37:     0x62ff6f20fc44 - test[a24b3028667022f7]::run_test::{closure#1}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/test/src/lib.rs:698:41
[INFO] [stdout]   38:     0x62ff6f20fc44 - std[29689e6404d28ef9]::sys::backtrace::__rust_begin_short_backtrace::<test[a24b3028667022f7]::run_test::{closure#1}, ()>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   39:     0x62ff6f219132 - std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked::<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/thread/lifecycle.rs:70:13
[INFO] [stdout]   40:     0x62ff6f219132 - <core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}> as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/panic/unwind_safe.rs:275:9
[INFO] [stdout]   41:     0x62ff6f219132 - std[29689e6404d28ef9]::panicking::catch_unwind::do_call::<core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:581:40
[INFO] [stdout]   42:     0x62ff6f219132 - std[29689e6404d28ef9]::panicking::catch_unwind::<(), core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panicking.rs:544:19
[INFO] [stdout]   43:     0x62ff6f219132 - std[29689e6404d28ef9]::panic::catch_unwind::<core[e929cb53b82a81ca]::panic::unwind_safe::AssertUnwindSafe<std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}::{closure#0}>, ()>
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/panic.rs:359:14
[INFO] [stdout]   44:     0x62ff6f219132 - std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked::<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/thread/lifecycle.rs:68:26
[INFO] [stdout]   45:     0x62ff6f219132 - <std[29689e6404d28ef9]::thread::lifecycle::spawn_unchecked<test[a24b3028667022f7]::run_test::{closure#1}, ()>::{closure#1} as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   46:     0x62ff6f2806bf - <alloc[9d7caffeb3b5d2c6]::boxed::Box<dyn core[e929cb53b82a81ca]::ops::function::FnOnce<(), Output = ()> + core[e929cb53b82a81ca]::marker::Send> as core[e929cb53b82a81ca]::ops::function::FnOnce<()>>::call_once
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/alloc/src/boxed.rs:2271:9
[INFO] [stdout]   47:     0x62ff6f2806bf - <std[29689e6404d28ef9]::sys::thread::unix::Thread>::new::thread_start
[INFO] [stdout]                                at /rustc/ec6f9a5b4413f74386267ef8efc93712c2ce6db6/library/std/src/sys/thread/unix.rs:118:17
[INFO] [stdout]   48:     0x7a4a90317aa4 - <unknown>
[INFO] [stdout]   49:     0x7a4a903a4a64 - clone
[INFO] [stdout]   50:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::it_sends_an_over_75_percent_warning_message
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "64860d359ea3db5b2aaaa2ea789cdadcb7cdb9bbc475aef8ffec7aa52e9d75a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64860d359ea3db5b2aaaa2ea789cdadcb7cdb9bbc475aef8ffec7aa52e9d75a5", kill_on_drop: false }`
[INFO] [stdout] 64860d359ea3db5b2aaaa2ea789cdadcb7cdb9bbc475aef8ffec7aa52e9d75a5
