[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] fd76f4d116df10032912a600f4487f406caf4731
[INFO] testing cenviity/learn-rust against beta-2026-01-20 for beta-1.94-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcenviity%2Flearn-rust" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/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-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/cenviity/learn-rust on toolchain beta-2026-01-20
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-01-20" "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" "+beta-2026-01-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 015e70743edd4c2cd126f8e72027b56dbed357e714c91917f94830f840a1814a
[INFO] running `Command { std: "docker" "start" "-a" "015e70743edd4c2cd126f8e72027b56dbed357e714c91917f94830f840a1814a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "015e70743edd4c2cd126f8e72027b56dbed357e714c91917f94830f840a1814a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "015e70743edd4c2cd126f8e72027b56dbed357e714c91917f94830f840a1814a", kill_on_drop: false }`
[INFO] [stdout] 015e70743edd4c2cd126f8e72027b56dbed357e714c91917f94830f840a1814a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 412585232aca1794a2256b4d325a03236d46c11f901506ec2a7d0dd9f55e94e8
[INFO] running `Command { std: "docker" "start" "-a" "412585232aca1794a2256b4d325a03236d46c11f901506ec2a7d0dd9f55e94e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[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 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 aggregator v0.1.0 (/opt/rustwide/workdir/10/aggregator)
[INFO] [stderr]    Compiling art v0.1.0 (/opt/rustwide/workdir/14/art)
[INFO] [stderr]    Compiling blog v0.1.0 (/opt/rustwide/workdir/17/blog)
[INFO] [stderr]    Compiling strings v0.1.0 (/opt/rustwide/workdir/08/strings)
[INFO] [stderr]    Compiling fully-qualified-syntax v0.1.0 (/opt/rustwide/workdir/19/fully-qualified-syntax)
[INFO] [stderr]    Compiling declarative-macros v0.1.0 (/opt/rustwide/workdir/19/declarative-macros)
[INFO] [stderr]    Compiling function-parameter-patterns v0.1.0 (/opt/rustwide/workdir/18/function-parameter-patterns)
[INFO] [stderr]    Compiling hash-maps v0.1.0 (/opt/rustwide/workdir/08/hash-maps)
[INFO] [stderr]    Compiling message-passing v0.1.0 (/opt/rustwide/workdir/16/message-passing)
[INFO] [stderr]    Compiling getrandom v0.2.13
[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 function-pointers v0.1.0 (/opt/rustwide/workdir/19/function-pointers)
[INFO] [stderr]    Compiling my-crate v0.1.0 (/opt/rustwide/workdir/14/my-crate)
[INFO] [stderr]    Compiling ownership-recap v0.1.0 (/opt/rustwide/workdir/04/ownership-recap)
[INFO] [stderr]    Compiling iterators v0.1.0 (/opt/rustwide/workdir/13/iterators)
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling generic-data-types-in-structs v0.1.0 (/opt/rustwide/workdir/10/generic-data-types-in-structs)
[INFO] [stderr]    Compiling refcell v0.1.0 (/opt/rustwide/workdir/15/refcell)
[INFO] [stderr]    Compiling threads v0.1.0 (/opt/rustwide/workdir/16/threads)
[INFO] [stderr]    Compiling defining-structs v0.1.0 (/opt/rustwide/workdir/05/defining-structs)
[INFO] [stderr]    Compiling panic v0.1.0 (/opt/rustwide/workdir/09/panic)
[INFO] [stderr]    Compiling unsafe-traits v0.1.0 (/opt/rustwide/workdir/19/unsafe-traits)
[INFO] [stderr]    Compiling vectors v0.1.0 (/opt/rustwide/workdir/08/vectors)
[INFO] [stderr]    Compiling while-let-patterns v0.1.0 (/opt/rustwide/workdir/18/while-let-patterns)
[INFO] [stderr]    Compiling unsafe-functions-methods v0.1.0 (/opt/rustwide/workdir/19/unsafe-functions-methods)
[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 test-organisation v0.1.0 (/opt/rustwide/workdir/11/test-organisation)
[INFO] [stderr]    Compiling defining-enums v0.1.0 (/opt/rustwide/workdir/06/defining-enums)
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling references-and-borrowing v0.1.0 (/opt/rustwide/workdir/04/references-and-borrowing)
[INFO] [stderr]    Compiling restaurant v0.1.0 (/opt/rustwide/workdir/07/restaurant)
[INFO] [stderr]    Compiling variables v0.1.0 (/opt/rustwide/workdir/03/variables)
[INFO] [stderr]    Compiling if-let v0.1.0 (/opt/rustwide/workdir/06/if-let)
[INFO] [stderr]    Compiling lifetimes v0.1.0 (/opt/rustwide/workdir/10/lifetimes)
[INFO] [stderr]    Compiling rc v0.1.0 (/opt/rustwide/workdir/15/rc)
[INFO] [stderr]    Compiling hello-world v0.1.0 (/opt/rustwide/workdir/01/hello-world)
[INFO] [stderr]    Compiling match-construct v0.1.0 (/opt/rustwide/workdir/06/match-construct)
[INFO] [stderr]    Compiling mutable-static-variables v0.1.0 (/opt/rustwide/workdir/19/mutable-static-variables)
[INFO] [stderr]    Compiling data-types v0.1.0 (/opt/rustwide/workdir/03/data-types)
[INFO] [stderr]    Compiling for-patterns v0.1.0 (/opt/rustwide/workdir/18/for-patterns)
[INFO] [stderr]    Compiling ownership v0.1.0 (/opt/rustwide/workdir/04/ownership)
[INFO] [stderr]    Compiling reference-cycles v0.1.0 (/opt/rustwide/workdir/15/reference-cycles)
[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: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[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: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling result v0.1.0 (/opt/rustwide/workdir/09/result)
[INFO] [stderr]    Compiling example-using-structs v0.1.0 (/opt/rustwide/workdir/05/example-using-structs)
[INFO] [stderr]    Compiling raw-pointer v0.1.0 (/opt/rustwide/workdir/19/raw-pointer)
[INFO] [stderr]    Compiling if-let-patterns v0.1.0 (/opt/rustwide/workdir/18/if-let-patterns)
[INFO] [stderr]    Compiling type-alias v0.1.0 (/opt/rustwide/workdir/19/type-alias)
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling object-oriented-characteristics v0.1.0 (/opt/rustwide/workdir/17/object-oriented-characteristics)
[INFO] [stderr]    Compiling shared-state v0.1.0 (/opt/rustwide/workdir/16/shared-state)
[INFO] [stderr]    Compiling branches v0.1.0 (/opt/rustwide/workdir/03/branches)
[INFO] [stderr]    Compiling supertrait v0.1.0 (/opt/rustwide/workdir/19/supertrait)
[INFO] [stderr]    Compiling deref v0.1.0 (/opt/rustwide/workdir/15/deref)
[INFO] [stderr]    Compiling boxes v0.1.0 (/opt/rustwide/workdir/15/boxes)
[INFO] [stderr]    Compiling traits v0.1.0 (/opt/rustwide/workdir/10/traits)
[INFO] [stderr]    Compiling newtype v0.1.0 (/opt/rustwide/workdir/19/newtype)
[INFO] [stderr]    Compiling adder v0.1.0 (/opt/rustwide/workdir/11/adder)
[INFO] [stderr]    Compiling hello-cargo v0.1.0 (/opt/rustwide/workdir/01/hello-cargo)
[INFO] [stderr]    Compiling slice_type v0.1.0 (/opt/rustwide/workdir/04/slice-type)
[INFO] [stderr]    Compiling closures v0.1.0 (/opt/rustwide/workdir/13/closures)
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling drop v0.1.0 (/opt/rustwide/workdir/15/drop)
[INFO] [stderr]    Compiling loops v0.1.0 (/opt/rustwide/workdir/03/loops)
[INFO] [stderr]    Compiling generic-data-types v0.1.0 (/opt/rustwide/workdir/10/generic-data-types)
[INFO] [stderr]    Compiling pattern-syntax v0.1.0 (/opt/rustwide/workdir/18/pattern-syntax)
[INFO] [stderr]    Compiling controlling-test-runs v0.1.0 (/opt/rustwide/workdir/11/controlling-test-runs)
[INFO] [stderr]    Compiling functions v0.1.0 (/opt/rustwide/workdir/03/functions)
[INFO] [stderr]    Compiling syn v2.0.58
[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 4.97s
[INFO] running `Command { std: "docker" "inspect" "412585232aca1794a2256b4d325a03236d46c11f901506ec2a7d0dd9f55e94e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "412585232aca1794a2256b4d325a03236d46c11f901506ec2a7d0dd9f55e94e8", kill_on_drop: false }`
[INFO] [stdout] 412585232aca1794a2256b4d325a03236d46c11f901506ec2a7d0dd9f55e94e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef1ec873bf9f1fcb5c1e231be556e2d6bedf7137e2a028f32c81dc0490bcfee7
[INFO] running `Command { std: "docker" "start" "-a" "ef1ec873bf9f1fcb5c1e231be556e2d6bedf7137e2a028f32c81dc0490bcfee7", 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 default-generic-type-parameters v0.1.0 (/opt/rustwide/workdir/19/default-generic-type-parameters)
[INFO] [stderr]    Compiling gui v0.1.0 (/opt/rustwide/workdir/17/gui)
[INFO] [stderr]    Compiling art v0.1.0 (/opt/rustwide/workdir/14/art)
[INFO] [stderr]    Compiling blog v0.1.0 (/opt/rustwide/workdir/17/blog)
[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 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 closures v0.1.0 (/opt/rustwide/workdir/13/closures)
[INFO] [stderr]    Compiling declarative-macros v0.1.0 (/opt/rustwide/workdir/19/declarative-macros)
[INFO] [stderr]    Compiling pattern-syntax v0.1.0 (/opt/rustwide/workdir/18/pattern-syntax)
[INFO] [stderr]    Compiling match-construct v0.1.0 (/opt/rustwide/workdir/06/match-construct)
[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 reference-cycles v0.1.0 (/opt/rustwide/workdir/15/reference-cycles)
[INFO] [stderr]    Compiling lifetimes v0.1.0 (/opt/rustwide/workdir/10/lifetimes)
[INFO] [stderr]    Compiling for-patterns v0.1.0 (/opt/rustwide/workdir/18/for-patterns)
[INFO] [stderr]    Compiling threads v0.1.0 (/opt/rustwide/workdir/16/threads)
[INFO] [stderr]    Compiling slice_type v0.1.0 (/opt/rustwide/workdir/04/slice-type)
[INFO] [stderr]    Compiling panic v0.1.0 (/opt/rustwide/workdir/09/panic)
[INFO] [stderr]    Compiling unsafe-functions-methods v0.1.0 (/opt/rustwide/workdir/19/unsafe-functions-methods)
[INFO] [stderr]    Compiling adder v0.1.0 (/opt/rustwide/workdir/11/adder)
[INFO] [stderr]    Compiling ownership v0.1.0 (/opt/rustwide/workdir/04/ownership)
[INFO] [stderr]    Compiling functions v0.1.0 (/opt/rustwide/workdir/03/functions)
[INFO] [stderr]    Compiling supertrait v0.1.0 (/opt/rustwide/workdir/19/supertrait)
[INFO] [stderr]    Compiling mutable-static-variables v0.1.0 (/opt/rustwide/workdir/19/mutable-static-variables)
[INFO] [stderr]    Compiling object-oriented-characteristics v0.1.0 (/opt/rustwide/workdir/17/object-oriented-characteristics)
[INFO] [stderr]    Compiling data-types v0.1.0 (/opt/rustwide/workdir/03/data-types)
[INFO] [stderr]    Compiling newtype v0.1.0 (/opt/rustwide/workdir/19/newtype)
[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: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[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: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling drop v0.1.0 (/opt/rustwide/workdir/15/drop)
[INFO] [stderr]    Compiling ownership-recap v0.1.0 (/opt/rustwide/workdir/04/ownership-recap)
[INFO] [stderr]    Compiling rc v0.1.0 (/opt/rustwide/workdir/15/rc)
[INFO] [stderr]    Compiling result v0.1.0 (/opt/rustwide/workdir/09/result)
[INFO] [stderr]    Compiling defining-enums v0.1.0 (/opt/rustwide/workdir/06/defining-enums)
[INFO] [stderr]    Compiling function-parameter-patterns v0.1.0 (/opt/rustwide/workdir/18/function-parameter-patterns)
[INFO] [stderr]    Compiling refcell v0.1.0 (/opt/rustwide/workdir/15/refcell)
[INFO] [stderr]    Compiling if-let-patterns v0.1.0 (/opt/rustwide/workdir/18/if-let-patterns)
[INFO] [stderr]    Compiling fully-qualified-syntax v0.1.0 (/opt/rustwide/workdir/19/fully-qualified-syntax)
[INFO] [stderr]    Compiling deref v0.1.0 (/opt/rustwide/workdir/15/deref)
[INFO] [stderr]    Compiling unsafe-traits v0.1.0 (/opt/rustwide/workdir/19/unsafe-traits)
[INFO] [stderr]    Compiling traits v0.1.0 (/opt/rustwide/workdir/10/traits)
[INFO] [stderr]    Compiling hello-world v0.1.0 (/opt/rustwide/workdir/01/hello-world)
[INFO] [stderr]    Compiling hello-cargo v0.1.0 (/opt/rustwide/workdir/01/hello-cargo)
[INFO] [stderr]    Compiling example-using-structs v0.1.0 (/opt/rustwide/workdir/05/example-using-structs)
[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 message-passing v0.1.0 (/opt/rustwide/workdir/16/message-passing)
[INFO] [stderr]    Compiling branches v0.1.0 (/opt/rustwide/workdir/03/branches)
[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 hash-maps v0.1.0 (/opt/rustwide/workdir/08/hash-maps)
[INFO] [stderr]    Compiling boxes v0.1.0 (/opt/rustwide/workdir/15/boxes)
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[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 loops v0.1.0 (/opt/rustwide/workdir/03/loops)
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[INFO] [stderr]    Compiling generic-data-types-in-structs v0.1.0 (/opt/rustwide/workdir/10/generic-data-types-in-structs)
[INFO] [stderr]    Compiling type-alias v0.1.0 (/opt/rustwide/workdir/19/type-alias)
[INFO] [stderr]    Compiling restaurant v0.1.0 (/opt/rustwide/workdir/07/restaurant)
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[INFO] [stderr]    Compiling defining-structs v0.1.0 (/opt/rustwide/workdir/05/defining-structs)
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[INFO] [stderr]    Compiling raw-pointer v0.1.0 (/opt/rustwide/workdir/19/raw-pointer)
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[INFO] [stderr]    Compiling if-let v0.1.0 (/opt/rustwide/workdir/06/if-let)
[INFO] [stderr]    Compiling my-crate v0.1.0 (/opt/rustwide/workdir/14/my-crate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 6.12s
[INFO] running `Command { std: "docker" "inspect" "ef1ec873bf9f1fcb5c1e231be556e2d6bedf7137e2a028f32c81dc0490bcfee7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef1ec873bf9f1fcb5c1e231be556e2d6bedf7137e2a028f32c81dc0490bcfee7", kill_on_drop: false }`
[INFO] [stdout] ef1ec873bf9f1fcb5c1e231be556e2d6bedf7137e2a028f32c81dc0490bcfee7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-01-20" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4df1e95f7982bae8c986538560b30a22b93e029edc54724f8e51be3882f52056
[INFO] running `Command { std: "docker" "start" "-a" "4df1e95f7982bae8c986538560b30a22b93e029edc54724f8e51be3882f52056", 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: `unsafe-traits` (bin "unsafe-traits" test) generated 1 warning
[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: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2024/static-mut-references.html>
[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: `#[warn(static_mut_refs)]` (part of `#[warn(rust_2024_compatibility)]`) on by default
[INFO] [stderr] 
[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 0.15s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/adder-5dd4761fe951629b)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
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[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/aggregator-8fb643a08b1b0696)
[INFO] [stdout] 
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[INFO] [stdout] 
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[INFO] [stdout] 
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[INFO] [stdout] 
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[INFO] [stdout] 
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[INFO] [stdout] 
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[INFO] [stdout] 
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[INFO] [stdout] 
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[INFO] [stdout] 
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[INFO] [stdout] 
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[INFO] [stdout] 
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[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/controlling_test_runs-1bf0ef077ccd281e)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::expensive_test ... ignored
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
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[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/data_types-56df578a460d09a6)
[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/lib.rs (/opt/rustwide/target/debug/deps/declarative_macros-e91fb0864ae4d96c)
[INFO] [stdout] 
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[INFO] [stdout] 
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[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/default_generic_type_parameters-15fa17da012d27dc)
[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/default_generic_type_parameters-4badc4c0c626d64f)
[INFO] [stdout] 
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[INFO] [stdout] 
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/defining_enums-eb099f76d05cda35)
[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-df5ddc78d9296378)
[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/deref-17211d0840666399)
[INFO] [stdout] 
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/drop-a62771e566aea026)
[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/example_using_structs-839fdc7656384f00)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/for_patterns-dbb147124dc6239d)
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/function_parameter_patterns-512b77448970e323)
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/iterators-a32b65c79d7efe36)
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[INFO] [stdout] test tests::filters_by_size ... ok
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[INFO] [stdout] test tests::case_sensitive ... ok
[INFO] [stdout] test tests::case_insensitive ... ok
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/minigrep-29d5f03700dbd3f7)
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[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/my_crate-23359a04924fa5e9)
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[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/newtype-2f2912b9172c4119)
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[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ownership-fc98933a8384339d)
[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] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/ownership_recap-6ccc3b07f17a74fc)
[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/pancakes-c1a4f3cee59a528f)
[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-2b225dcc1b66540e)
[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-eb1037c36859da6a)
[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-fc781d554c48fb2d)
[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-91f145e47f49c29c)
[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-e8eeafe8b47a7092)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test tests::it_sends_an_over_75_percent_warning_message ... FAILED
[INFO] [stderr] error: test failed, to rerun pass `-p refcell --lib`
[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' (85) panicked at 15/refcell/src/lib.rs:60:53:
[INFO] [stdout] RefCell already borrowed
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x563125628622 - std::backtrace_rs::backtrace::libunwind::trace::hf0bd46b30bc61685
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x563125628622 - std::backtrace_rs::backtrace::trace_unsynchronized::h1d1fbb72ad89d7b7
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x563125628622 - std::sys::backtrace::_print_fmt::he38b6f68ca847f47
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x563125628622 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hb7e843cde1bc81a3
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:44:26
[INFO] [stdout]    4:     0x56312563868a - core::fmt::rt::Argument::fmt::hc1dd77ac64f2688c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x56312563868a - core::fmt::write::h952c506e2dbe9cff
[INFO] [stdout]    6:     0x5631255f75a6 - std::io::default_write_fmt::hd23bd8145c03a23a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5631255f75a6 - std::io::Write::write_fmt::hdd3314a2bd8a34bd
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x563125607b09 - std::sys::backtrace::BacktraceLock::print::h1079b82381c2c252
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x563125607b09 - std::panicking::default_hook::{{closure}}::h85cb76b8462c00f2
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5631256079a1 - std::panicking::default_hook::h0134d220cc034c02
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5631255cc04e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hb2e68dca3970e3ca
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   12:     0x5631255cc04e - test::test_main_with_exit_callback::{{closure}}::ha7ec2063a2565ec3
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x563125607d82 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::haebee478d0f56cf4
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2220:9
[INFO] [stdout]   14:     0x563125607d82 - std::panicking::panic_with_hook::h8119b6db1fef734f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x563125607bc8 - std::panicking::panic_handler::{{closure}}::h24f5360b91482c0e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x563125603159 - std::sys::backtrace::__rust_end_short_backtrace::h4e60c5cbd1bd0108
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5631255ec19d - __rustc[e4c6931bd8050421]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x56312563f9ec - core::panicking::panic_fmt::hb1614a3ff6840071
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x56312563ecbf - core::cell::panic_already_borrowed::do_panic::runtime::hbdfa4e31830320db
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic.rs:172:21
[INFO] [stdout]   20:     0x56312563ecbf - core::cell::panic_already_borrowed::do_panic::heee559829bca4281
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/intrinsics/mod.rs:2432:9
[INFO] [stdout]   21:     0x56312563ecbf - core::cell::panic_already_borrowed::hf2655a57c247fb11
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic.rs:177:9
[INFO] [stdout]   22:     0x5631255ac2d3 - core::cell::RefCell<T>::borrow_mut::h4fe1c5adcf27d37f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/cell.rs:1201:25
[INFO] [stdout]   23:     0x5631255accd5 - <refcell::tests::MockMessenger as refcell::Messenger>::send::h71d835eab802fcce
[INFO] [stdout]                                at /opt/rustwide/workdir/15/refcell/src/lib.rs:60:53
[INFO] [stdout]   24:     0x5631255acfae - refcell::LimitTracker<T>::set_value::h446cc941bbcf25fb
[INFO] [stdout]                                at /opt/rustwide/workdir/15/refcell/src/lib.rs:35:18
[INFO] [stdout]   25:     0x5631255ad090 - refcell::tests::it_sends_an_over_75_percent_warning_message::h76b583e304461b95
[INFO] [stdout]                                at /opt/rustwide/workdir/15/refcell/src/lib.rs:72:23
[INFO] [stdout]   26:     0x5631255ad1b7 - refcell::tests::it_sends_an_over_75_percent_warning_message::{{closure}}::h3933c3ae0b8d0aa3
[INFO] [stdout]                                at /opt/rustwide/workdir/15/refcell/src/lib.rs:68:53
[INFO] [stdout]   27:     0x5631255abdb6 - core::ops::function::FnOnce::call_once::h95200aa430ece952
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   28:     0x5631255cbe4b - core::ops::function::FnOnce::call_once::hefaf63600cd43d2a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   29:     0x5631255cbe4b - test::__rust_begin_short_backtrace::he30322a73a0e9ea6
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:663:18
[INFO] [stdout]   30:     0x5631255df81a - test::run_test_in_process::{{closure}}::hdea3ab8d0243ef36
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:74
[INFO] [stdout]   31:     0x5631255df81a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h66d192f42498ffce
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   32:     0x5631255df81a - std::panicking::catch_unwind::do_call::h822e18e8d3a6bb65
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   33:     0x5631255df81a - std::panicking::catch_unwind::h54b1de7ceab578bf
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   34:     0x5631255df81a - std::panic::catch_unwind::h60c29b7a9d0246b1
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   35:     0x5631255df81a - test::run_test_in_process::h6099b5f871379b13
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:27
[INFO] [stdout]   36:     0x5631255df81a - test::run_test::{{closure}}::h926ce0a38281a4c8
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:607:43
[INFO] [stdout]   37:     0x5631255b9c74 - test::run_test::{{closure}}::h508de21a9afc7140
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:637:41
[INFO] [stdout]   38:     0x5631255b9c74 - std::sys::backtrace::__rust_begin_short_backtrace::h6e2f5c39ca00735a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   39:     0x5631255bd532 - std::thread::lifecycle::spawn_unchecked::{{closure}}::{{closure}}::h133e44f0e5802c14
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   40:     0x5631255bd532 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4718c1285283955c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   41:     0x5631255bd532 - std::panicking::catch_unwind::do_call::h0bba3937b4892238
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   42:     0x5631255bd532 - std::panicking::catch_unwind::h5b31cab5fb8c5d7f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   43:     0x5631255bd532 - std::panic::catch_unwind::hb2fa05d52ed0124e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   44:     0x5631255bd532 - std::thread::lifecycle::spawn_unchecked::{{closure}}::hf401cf5ff501bd29
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   45:     0x5631255bd532 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h160022e94ce3b0bb
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   46:     0x5631255fe3ef - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf234e0d1d1d272ba
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/alloc/src/boxed.rs:2206:9
[INFO] [stdout]   47:     0x5631255fe3ef - std::sys::thread::unix::Thread::new::thread_start::h106a295241840d3b
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/thread/unix.rs:127:17
[INFO] [stdout]   48:     0x7479e24fbaa4 - <unknown>
[INFO] [stdout]   49:     0x7479e2588a64 - 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" "4df1e95f7982bae8c986538560b30a22b93e029edc54724f8e51be3882f52056", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4df1e95f7982bae8c986538560b30a22b93e029edc54724f8e51be3882f52056", kill_on_drop: false }`
[INFO] [stdout] 4df1e95f7982bae8c986538560b30a22b93e029edc54724f8e51be3882f52056
