[INFO] cloning repository https://github.com/sampersand/quest2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sampersand/quest2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsampersand%2Fquest2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsampersand%2Fquest2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 98708531875b480a83503e0dac1e4995a7669fc7
[INFO] testing sampersand/quest2 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%2Fsampersand%2Fquest2" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sampersand/quest2
[INFO] finished tweaking git repo https://github.com/sampersand/quest2
[INFO] tweaked toml for git repo https://github.com/sampersand/quest2 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sampersand/quest2 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/sampersand/quest2 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] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] a51a24eb6bd1f1fe975a6056d803bff22d18fd06a36dc179cd84389be4f5fb32
[INFO] running `Command { std: "docker" "start" "-a" "a51a24eb6bd1f1fe975a6056d803bff22d18fd06a36dc179cd84389be4f5fb32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a51a24eb6bd1f1fe975a6056d803bff22d18fd06a36dc179cd84389be4f5fb32", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a51a24eb6bd1f1fe975a6056d803bff22d18fd06a36dc179cd84389be4f5fb32", kill_on_drop: false }`
[INFO] [stdout] a51a24eb6bd1f1fe975a6056d803bff22d18fd06a36dc179cd84389be4f5fb32
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 8121f7836e6265196a8ddd3da75c0ee4e36a9e322b177be1680921ad5348cece
[INFO] running `Command { std: "docker" "start" "-a" "8121f7836e6265196a8ddd3da75c0ee4e36a9e322b177be1680921ad5348cece", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling proc-macro2 v1.0.36
[INFO] [stderr]    Compiling syn v1.0.86
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling once_cell v1.9.0
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling tracing-core v0.1.26
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling radix_fmt v1.0.0
[INFO] [stderr]    Compiling thread_local v1.1.4
[INFO] [stderr]    Compiling tracing-log v0.1.3
[INFO] [stderr]    Compiling getrandom v0.2.5
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling quote v1.0.15
[INFO] [stderr]    Compiling tracing-subscriber v0.3.11
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling hashbrown v0.12.0
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling dashmap v5.3.4
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.21
[INFO] [stderr]    Compiling qvm-macros v0.1.0 (/opt/rustwide/workdir/macros)
[INFO] [stderr]    Compiling tracing v0.1.34
[INFO] [stderr]    Compiling quest v0.2.0 (/opt/rustwide/workdir/quest)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> quest/src/error.rs:160:29
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn cause(&self) -> Option<&(dyn std::error::Error)> {
[INFO] [stdout]     |                                ^                     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 160 -     fn cause(&self) -> Option<&(dyn std::error::Error)> {
[INFO] [stdout] 160 +     fn cause(&self) -> Option<&dyn std::error::Error > {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> quest/src/value/ty/integer.rs:70:2
[INFO] [stdout]    |
[INFO] [stdout] 70 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> quest/src/value/base/builder.rs:334:2
[INFO] [stdout]     |
[INFO] [stdout] 334 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> quest/src/value/ty/list/internal_builder.rs:43:7
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let mut alloc = &mut self.inner_mut().alloc;
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> quest/src/value/ty/list.rs:128:8
[INFO] [stdout]     |
[INFO] [stdout] 128 |             let mut alloc = &mut builder.inner_mut().alloc;
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> quest/src/value/ty/list.rs:276:7
[INFO] [stdout]     |
[INFO] [stdout] 276 |         let mut alloc = &mut self.inner_mut().alloc;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> quest/src/value/ty/list.rs:345:8
[INFO] [stdout]     |
[INFO] [stdout] 345 |             let mut alloc = &mut self.inner_mut().alloc;
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> quest/src/value/ty/text/builder.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 |             let mut alloc = &mut self.inner_mut().alloc;
[INFO] [stdout]    |                 ----^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> quest/src/value/ty/text.rs:358:7
[INFO] [stdout]     |
[INFO] [stdout] 358 |         let mut alloc = unsafe { &mut builder.inner_mut().alloc };
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> quest/src/value/ty/text.rs:391:7
[INFO] [stdout]     |
[INFO] [stdout] 391 |         let mut alloc = unsafe { &mut builder.inner_mut().alloc };
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> quest/src/value/ty/text.rs:739:7
[INFO] [stdout]     |
[INFO] [stdout] 739 |         let mut alloc = &mut self.inner_mut().alloc;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> quest/src/value/ty/text.rs:807:8
[INFO] [stdout]     |
[INFO] [stdout] 807 |             let mut alloc = &mut self.inner_mut().alloc;
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.93s
[INFO] running `Command { std: "docker" "inspect" "8121f7836e6265196a8ddd3da75c0ee4e36a9e322b177be1680921ad5348cece", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8121f7836e6265196a8ddd3da75c0ee4e36a9e322b177be1680921ad5348cece", kill_on_drop: false }`
[INFO] [stdout] 8121f7836e6265196a8ddd3da75c0ee4e36a9e322b177be1680921ad5348cece
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b322f28ed1f13342ab96b3ea9bacb407bfc19fa9bd5b38f7834802160706f45c
[INFO] running `Command { std: "docker" "start" "-a" "b322f28ed1f13342ab96b3ea9bacb407bfc19fa9bd5b38f7834802160706f45c", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling assert_matches v1.5.0
[INFO] [stderr]    Compiling qvm-macros v0.1.0 (/opt/rustwide/workdir/macros)
[INFO] [stderr]    Compiling quest v0.2.0 (/opt/rustwide/workdir/quest)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> quest/src/error.rs:160:29
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn cause(&self) -> Option<&(dyn std::error::Error)> {
[INFO] [stdout]     |                                ^                     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 160 -     fn cause(&self) -> Option<&(dyn std::error::Error)> {
[INFO] [stdout] 160 +     fn cause(&self) -> Option<&dyn std::error::Error > {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> quest/src/error.rs:160:29
[INFO] [stdout]     |
[INFO] [stdout] 160 |     fn cause(&self) -> Option<&(dyn std::error::Error)> {
[INFO] [stdout]     |                                ^                     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 160 -     fn cause(&self) -> Option<&(dyn std::error::Error)> {
[INFO] [stdout] 160 +     fn cause(&self) -> Option<&dyn std::error::Error > {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> quest/src/value/ty/integer.rs:70:2
[INFO] [stdout]    |
[INFO] [stdout] 70 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> quest/src/value/base/builder.rs:334:2
[INFO] [stdout]     |
[INFO] [stdout] 334 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]   --> quest/src/value/ty/integer.rs:70:2
[INFO] [stdout]    |
[INFO] [stdout] 70 |     #[must_use]
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]    = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout]    = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stdout]    --> quest/src/value/base/builder.rs:334:2
[INFO] [stdout]     |
[INFO] [stdout] 334 |     #[must_use]
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]     = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> quest/src/value/ty/list/internal_builder.rs:43:7
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let mut alloc = &mut self.inner_mut().alloc;
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> quest/src/value/ty/list.rs:128:8
[INFO] [stdout]     |
[INFO] [stdout] 128 |             let mut alloc = &mut builder.inner_mut().alloc;
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> quest/src/value/ty/list.rs:276:7
[INFO] [stdout]     |
[INFO] [stdout] 276 |         let mut alloc = &mut self.inner_mut().alloc;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> quest/src/value/ty/list.rs:345:8
[INFO] [stdout]     |
[INFO] [stdout] 345 |             let mut alloc = &mut self.inner_mut().alloc;
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> quest/src/value/ty/text/builder.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 |             let mut alloc = &mut self.inner_mut().alloc;
[INFO] [stdout]    |                 ----^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> quest/src/value/ty/text.rs:358:7
[INFO] [stdout]     |
[INFO] [stdout] 358 |         let mut alloc = unsafe { &mut builder.inner_mut().alloc };
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> quest/src/value/ty/text.rs:391:7
[INFO] [stdout]     |
[INFO] [stdout] 391 |         let mut alloc = unsafe { &mut builder.inner_mut().alloc };
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> quest/src/value/ty/text.rs:739:7
[INFO] [stdout]     |
[INFO] [stdout] 739 |         let mut alloc = &mut self.inner_mut().alloc;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> quest/src/value/ty/text.rs:807:8
[INFO] [stdout]     |
[INFO] [stdout] 807 |             let mut alloc = &mut self.inner_mut().alloc;
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> quest/src/value/ty/list/internal_builder.rs:43:7
[INFO] [stdout]    |
[INFO] [stdout] 43 |         let mut alloc = &mut self.inner_mut().alloc;
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> quest/src/value/ty/list.rs:128:8
[INFO] [stdout]     |
[INFO] [stdout] 128 |             let mut alloc = &mut builder.inner_mut().alloc;
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> quest/src/value/ty/list.rs:276:7
[INFO] [stdout]     |
[INFO] [stdout] 276 |         let mut alloc = &mut self.inner_mut().alloc;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> quest/src/value/ty/list.rs:345:8
[INFO] [stdout]     |
[INFO] [stdout] 345 |             let mut alloc = &mut self.inner_mut().alloc;
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> quest/src/value/ty/text/builder.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 49 |             let mut alloc = &mut self.inner_mut().alloc;
[INFO] [stdout]    |                 ----^^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> quest/src/value/ty/text.rs:358:7
[INFO] [stdout]     |
[INFO] [stdout] 358 |         let mut alloc = unsafe { &mut builder.inner_mut().alloc };
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> quest/src/value/ty/text.rs:391:7
[INFO] [stdout]     |
[INFO] [stdout] 391 |         let mut alloc = unsafe { &mut builder.inner_mut().alloc };
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> quest/src/value/ty/text.rs:739:7
[INFO] [stdout]     |
[INFO] [stdout] 739 |         let mut alloc = &mut self.inner_mut().alloc;
[INFO] [stdout]     |             ----^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> quest/src/value/ty/text.rs:807:8
[INFO] [stdout]     |
[INFO] [stdout] 807 |             let mut alloc = &mut self.inner_mut().alloc;
[INFO] [stdout]     |                 ----^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 7.06s
[INFO] running `Command { std: "docker" "inspect" "b322f28ed1f13342ab96b3ea9bacb407bfc19fa9bd5b38f7834802160706f45c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b322f28ed1f13342ab96b3ea9bacb407bfc19fa9bd5b38f7834802160706f45c", kill_on_drop: false }`
[INFO] [stdout] b322f28ed1f13342ab96b3ea9bacb407bfc19fa9bd5b38f7834802160706f45c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] d715faf7c9e7168e582254941180cf89e5243f3d673ce3d15c3c71f331e2cfcc
[INFO] running `Command { std: "docker" "start" "-a" "d715faf7c9e7168e582254941180cf89e5243f3d673ce3d15c3c71f331e2cfcc", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stderr]    --> quest/src/error.rs:160:29
[INFO] [stderr]     |
[INFO] [stderr] 160 |     fn cause(&self) -> Option<&(dyn std::error::Error)> {
[INFO] [stderr]     |                                ^                     ^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 160 -     fn cause(&self) -> Option<&(dyn std::error::Error)> {
[INFO] [stderr] 160 +     fn cause(&self) -> Option<&dyn std::error::Error > {
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]   --> quest/src/value/ty/integer.rs:70:2
[INFO] [stderr]    |
[INFO] [stderr] 70 |     #[must_use]
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]    = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr]    = note: `#[warn(unused_attributes)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `#[must_use]` attribute cannot be used on trait methods in impl blocks
[INFO] [stderr]    --> quest/src/value/base/builder.rs:334:2
[INFO] [stderr]     |
[INFO] [stderr] 334 |     #[must_use]
[INFO] [stderr]     |     ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = help: `#[must_use]` can be applied to data types, foreign functions, functions, inherent methods, provided trait methods, required trait methods, traits, and unions
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> quest/src/value/ty/list/internal_builder.rs:43:7
[INFO] [stderr]    |
[INFO] [stderr] 43 |         let mut alloc = &mut self.inner_mut().alloc;
[INFO] [stderr]    |             ----^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> quest/src/value/ty/list.rs:128:8
[INFO] [stderr]     |
[INFO] [stderr] 128 |             let mut alloc = &mut builder.inner_mut().alloc;
[INFO] [stderr]     |                 ----^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> quest/src/value/ty/list.rs:276:7
[INFO] [stderr]     |
[INFO] [stderr] 276 |         let mut alloc = &mut self.inner_mut().alloc;
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> quest/src/value/ty/list.rs:345:8
[INFO] [stderr]     |
[INFO] [stderr] 345 |             let mut alloc = &mut self.inner_mut().alloc;
[INFO] [stderr]     |                 ----^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> quest/src/value/ty/text/builder.rs:49:8
[INFO] [stderr]    |
[INFO] [stderr] 49 |             let mut alloc = &mut self.inner_mut().alloc;
[INFO] [stderr]    |                 ----^^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> quest/src/value/ty/text.rs:358:7
[INFO] [stderr]     |
[INFO] [stderr] 358 |         let mut alloc = unsafe { &mut builder.inner_mut().alloc };
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> quest/src/value/ty/text.rs:391:7
[INFO] [stderr]     |
[INFO] [stderr] 391 |         let mut alloc = unsafe { &mut builder.inner_mut().alloc };
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> quest/src/value/ty/text.rs:739:7
[INFO] [stderr]     |
[INFO] [stderr] 739 |         let mut alloc = &mut self.inner_mut().alloc;
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> quest/src/value/ty/text.rs:807:8
[INFO] [stderr]     |
[INFO] [stderr] 807 |             let mut alloc = &mut self.inner_mut().alloc;
[INFO] [stderr]     |                 ----^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: `quest` (lib) generated 12 warnings (run `cargo fix --lib -p quest` to apply 12 suggestions)
[INFO] [stderr] warning: `quest` (lib test) generated 12 warnings (12 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/quest-bffd17f35660d298)
[INFO] [stdout] 
[INFO] [stdout] running 36 tests
[INFO] [stdout] test value::ty::boolean::tests::test_convert_to_float ... ok
[INFO] [stdout] test value::base::attributes::tests::it_transitions_over_to_full_map ... ok
[INFO] [stdout] test value::gc::tests::respects_frozen ... ok
[INFO] [stdout] test value::base::attributes::tests::parents_work ... ok
[INFO] [stdout] test value::ty::boolean::tests::test_convert_to_text ... ok
[INFO] [stdout] test value::ty::boolean::tests::test_get ... ok
[INFO] [stdout] test value::ty::boolean::tests::test_convert_to_integer ... ok
[INFO] [stdout] test value::ty::float::tests::test_get ... ok
[INFO] [stdout] test value::ty::boolean::tests::test_is_a ... ok
[INFO] [stdout] test value::base::attributes::tests::attributes_work ... ok
[INFO] [stdout] test value::ty::integer::tests::test_convert_to_text_different_radix ... ignored
[INFO] [stdout] test value::ty::float::tests::test_is_a ... ok
[INFO] [stdout] test value::ty::integer::tests::test_convert_to_text_noargs ... ok
[INFO] [stdout] test value::ty::integer::tests::test_get ... ok
[INFO] [stdout] test value::ty::integer::tests::test_is_a ... ok
[INFO] [stdout] test value::ty::null::tests::test_convert_to_text ... ok
[INFO] [stdout] test value::ty::null::tests::test_get ... ok
[INFO] [stdout] test value::ty::integer::tests::op_neg ... ok
[INFO] [stdout] test value::ty::rustfn::tests::test_get ... ok
[INFO] [stdout] test value::ty::null::tests::test_convert_to_float ... ok
[INFO] [stdout] test value::ty::text::tests::test_get ... ok
[INFO] [stdout] test value::ty::null::tests::test_convert_to_list ... ok
[INFO] [stdout] test value::ty::integer::tests::test_convert_to_float ... ok
[INFO] [stdout] test value::ty::integer::tests::test_convert_to_text_bad_args_error ... ok
[INFO] [stdout] test value::ty::null::tests::test_is_a ... ok
[INFO] [stdout] test value::ty::text::tests::default_is_empty_string ... ok
[INFO] [stdout] test value::ty::null::tests::test_convert_to_integer ... ok
[INFO] [stdout] test value::ty::rustfn::tests::test_is_a ... ok
[INFO] [stdout] test value::ty::text::tests::larger_strings_still_reallocate_properly ... ok
[INFO] [stdout] test value::ty::text::tests::test_is_a ... ok
[INFO] [stdout] test value::value::tests::test_get_attr ... ok
[INFO] [stdout] test value::value::tests::test_call_attrs ... ok
[INFO] [stdout] test value::ty::text::tests::push_str_updates_hash_correctly ... ok
[INFO] [stdout] test value::gc::tests::respects_refcell_rules ... ok
[INFO] [stdout] test value::gc::tests::too_many_immutable_borrows_cause_a_panick - should panic ... ok
[INFO] [stdout] test vm::frame::tests::test_fibonacci ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 35 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.14s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/quest-6379ae948cd72e94)
[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 tests/integration_tests.rs (/opt/rustwide/target/debug/deps/integration_tests-29f3555dff40d8ac)
[INFO] [stdout] 
[INFO] [stdout] running 27 tests
[INFO] [stdout] test divides ... ok
[INFO] [stdout] test alias_macro ... ok
[INFO] [stdout] test assertion_fails ... ok
[INFO] [stdout] test basic_stackframe_continuation ... ok
[INFO] [stdout] test basic_syntax ... ok
[INFO] [stdout] test create_frame_iteration ... ok
[INFO] [stdout] test dbg_representations ... ok
[INFO] [stdout] test assign_and_fetch_from_arrays ... ok
[INFO] [stdout] test modifying_string_literals_isnt_global ... ignored
[INFO] [stdout] test any_parens_in_syntax ... ok
[INFO] [stdout] test nested_syntax ... ok
[INFO] [stdout] test has_attr_and_del_attr ... ok
[INFO] [stdout] test negative_matches_and_underscore ... ok
[INFO] [stdout] test lists_containing_themselves ... ok
[INFO] [stdout] test fib_pass_function ... ok
[INFO] [stdout] test list_comprehension ... ok
[INFO] [stdout] test repetition_in_macros ... ok
[INFO] [stdout] test all_attr_methods ... ok
[INFO] [stdout] test fib_set_parent ... ok
[INFO] [stdout] test reference_syntax_groups ... ok
[INFO] [stdout] test should_overflow_and_return_error ... ok
[INFO] [stdout] test list_sizes ... ok
[INFO] [stdout] test square_root ... ok
[INFO] [stdout] test if_while_and_do_while ... ok
[INFO] [stdout] test if_and_while ... ok
[INFO] [stdout] test fib_set_attr ... FAILED
[INFO] [stdout] test fib_normal ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- fib_set_attr stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'fib_set_attr' (74) panicked at quest/tests/integration_tests.rs:72:6:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: Error { stacktrace: Stacktrace([Block((unknown):2:14), Block((unknown):2:14), Block((unknown):2:14), Block((unknown):2:14), Block((unknown):2:14), Block((unknown):2:14)]), kind: AlreadyLocked(Class(Inner { name: "Integer" })) }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5b28e3caed82 - 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:     0x5b28e3caed82 - 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:     0x5b28e3caed82 - std::sys::backtrace::_print_fmt::he38b6f68ca847f47
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:74:9
[INFO] [stdout]    3:     0x5b28e3caed82 - <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:     0x5b28e3cbfd8a - core::fmt::rt::Argument::fmt::hc1dd77ac64f2688c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/fmt/rt.rs:152:76
[INFO] [stdout]    5:     0x5b28e3cbfd8a - core::fmt::write::h952c506e2dbe9cff
[INFO] [stdout]    6:     0x5b28e3c7da66 - std::io::default_write_fmt::hd23bd8145c03a23a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5b28e3c7da66 - std::io::Write::write_fmt::hdd3314a2bd8a34bd
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/io/mod.rs:1994:13
[INFO] [stdout]    8:     0x5b28e3c8e179 - std::sys::backtrace::BacktraceLock::print::h1079b82381c2c252
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:47:9
[INFO] [stdout]    9:     0x5b28e3c8e179 - std::panicking::default_hook::{{closure}}::h85cb76b8462c00f2
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:292:27
[INFO] [stdout]   10:     0x5b28e3c8e011 - std::panicking::default_hook::h0134d220cc034c02
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:316:9
[INFO] [stdout]   11:     0x5b28e3adb59e - <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:     0x5b28e3adb59e - test::test_main_with_exit_callback::{{closure}}::ha7ec2063a2565ec3
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5b28e3c8e3f2 - <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:     0x5b28e3c8e3f2 - std::panicking::panic_with_hook::h8119b6db1fef734f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:833:13
[INFO] [stdout]   15:     0x5b28e3c8e238 - std::panicking::panic_handler::{{closure}}::h24f5360b91482c0e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:698:13
[INFO] [stdout]   16:     0x5b28e3c89619 - std::sys::backtrace::__rust_end_short_backtrace::h4e60c5cbd1bd0108
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:182:18
[INFO] [stdout]   17:     0x5b28e3c7265d - __rustc[e4c6931bd8050421]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:689:5
[INFO] [stdout]   18:     0x5b28e3cc79bc - core::panicking::panic_fmt::hb1614a3ff6840071
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5b28e3cc6f72 - core::result::unwrap_failed::h7d4c34940aded59c
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/result.rs:1867:5
[INFO] [stdout]   20:     0x5b28e3ab7ff5 - core::result::Result<T,E>::unwrap::h34068ffea636650a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/result.rs:1233:23
[INFO] [stdout]   21:     0x5b28e3ab7ff5 - integration_tests::fib_set_attr::he292984632a3afdc
[INFO] [stdout]                                at /opt/rustwide/workdir/quest/tests/integration_tests.rs:72:3
[INFO] [stdout]   22:     0x5b28e3ab80f7 - integration_tests::fib_set_attr::{{closure}}::hb5ecc0603424df88
[INFO] [stdout]                                at /opt/rustwide/workdir/quest/tests/integration_tests.rs:57:18
[INFO] [stdout]   23:     0x5b28e3abb766 - core::ops::function::FnOnce::call_once::h4cbafc17ccf17c48
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5b28e3adb39b - core::ops::function::FnOnce::call_once::hefaf63600cd43d2a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5b28e3adb39b - test::__rust_begin_short_backtrace::he30322a73a0e9ea6
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x5b28e3aeed6a - test::run_test_in_process::{{closure}}::hdea3ab8d0243ef36
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x5b28e3aeed6a - <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]   28:     0x5b28e3aeed6a - std::panicking::catch_unwind::do_call::h822e18e8d3a6bb65
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   29:     0x5b28e3aeed6a - std::panicking::catch_unwind::h54b1de7ceab578bf
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   30:     0x5b28e3aeed6a - std::panic::catch_unwind::h60c29b7a9d0246b1
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5b28e3aeed6a - test::run_test_in_process::h6099b5f871379b13
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x5b28e3aeed6a - test::run_test::{{closure}}::h926ce0a38281a4c8
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x5b28e3ac91c4 - test::run_test::{{closure}}::h508de21a9afc7140
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x5b28e3ac91c4 - std::sys::backtrace::__rust_begin_short_backtrace::h6e2f5c39ca00735a
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/sys/backtrace.rs:166:18
[INFO] [stdout]   35:     0x5b28e3acca82 - std::thread::lifecycle::spawn_unchecked::{{closure}}::{{closure}}::h133e44f0e5802c14
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:91:13
[INFO] [stdout]   36:     0x5b28e3acca82 - <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]   37:     0x5b28e3acca82 - std::panicking::catch_unwind::do_call::h0bba3937b4892238
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:581:40
[INFO] [stdout]   38:     0x5b28e3acca82 - std::panicking::catch_unwind::h5b31cab5fb8c5d7f
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panicking.rs:544:19
[INFO] [stdout]   39:     0x5b28e3acca82 - std::panic::catch_unwind::hb2fa05d52ed0124e
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x5b28e3acca82 - std::thread::lifecycle::spawn_unchecked::{{closure}}::hf401cf5ff501bd29
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/std/src/thread/lifecycle.rs:89:26
[INFO] [stdout]   41:     0x5b28e3acca82 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h160022e94ce3b0bb
[INFO] [stdout]                                at /rustc/9b1f8ff42d110b0ca138116745be921df5dc97e7/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5b28e3c848af - <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]   43:     0x5b28e3c848af - 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]   44:     0x71fc70ebeaa4 - <unknown>
[INFO] [stdout]   45:     0x71fc70f4ba64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     fib_set_attr
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 25 passed; 1 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `-p quest --test integration_tests`
[INFO] running `Command { std: "docker" "inspect" "d715faf7c9e7168e582254941180cf89e5243f3d673ce3d15c3c71f331e2cfcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d715faf7c9e7168e582254941180cf89e5243f3d673ce3d15c3c71f331e2cfcc", kill_on_drop: false }`
[INFO] [stdout] d715faf7c9e7168e582254941180cf89e5243f3d673ce3d15c3c71f331e2cfcc
