[INFO] fetching crate melodeon 0.5.16...
[INFO] testing melodeon-0.5.16 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate melodeon 0.5.16 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate melodeon 0.5.16
[INFO] finished tweaking crates.io crate melodeon 0.5.16
[INFO] tweaked toml for crates.io crate melodeon 0.5.16 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate melodeon 0.5.16 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate melodeon 0.5.16 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-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f1b75b544a67475bfc9b760489ef8722903783bcf11ca23869ef25ec0ffad7a0
[INFO] running `Command { std: "docker" "start" "-a" "f1b75b544a67475bfc9b760489ef8722903783bcf11ca23869ef25ec0ffad7a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f1b75b544a67475bfc9b760489ef8722903783bcf11ca23869ef25ec0ffad7a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1b75b544a67475bfc9b760489ef8722903783bcf11ca23869ef25ec0ffad7a0", kill_on_drop: false }`
[INFO] [stdout] f1b75b544a67475bfc9b760489ef8722903783bcf11ca23869ef25ec0ffad7a0
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2c1b78439fe2f543f20a9c9e679e9f39f646825e522e32675fc4ccecac1374c
[INFO] running `Command { std: "docker" "start" "-a" "e2c1b78439fe2f543f20a9c9e679e9f39f646825e522e32675fc4ccecac1374c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling libc v0.2.131
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling once_cell v1.13.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.11
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.10
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]    Compiling lock_api v0.4.7
[INFO] [stderr]    Compiling parking_lot_core v0.9.3
[INFO] [stderr]    Compiling generic-array v0.14.6
[INFO] [stderr]    Compiling ucd-trie v0.1.4
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling rayon v1.5.3
[INFO] [stderr]    Compiling smallvec v1.9.0
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling bitmaps v2.1.0
[INFO] [stderr]    Compiling anyhow v1.0.61
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling either v1.7.0
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling argh_shared v0.1.8
[INFO] [stderr]    Compiling rand_xoshiro v0.6.0
[INFO] [stderr]    Compiling ryu v1.0.11
[INFO] [stderr]    Compiling defmac v0.2.1
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling fastrand v1.8.0
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling num_cpus v1.13.1
[INFO] [stderr]    Compiling getrandom v0.2.7
[INFO] [stderr]    Compiling crossbeam-channel v0.5.6
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling crypto-common v0.1.6
[INFO] [stderr]    Compiling block-buffer v0.10.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling sized-chunks v0.6.5
[INFO] [stderr]    Compiling lexpr-macros v0.2.1
[INFO] [stderr]    Compiling bytes v1.2.1
[INFO] [stderr]    Compiling ethnum v1.2.2
[INFO] [stderr]    Compiling digest v0.10.3
[INFO] [stderr]    Compiling hashbrown v0.12.3
[INFO] [stderr]    Compiling colored v2.0.0
[INFO] [stderr]    Compiling dashmap v4.0.2
[INFO] [stderr]    Compiling crossbeam-deque v0.8.2
[INFO] [stderr]    Compiling blake3 v1.3.1
[INFO] [stderr]    Compiling parking_lot v0.12.1
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling lexpr v0.2.6
[INFO] [stderr]    Compiling internment v0.5.6
[INFO] [stderr]    Compiling thiserror-impl v1.0.32
[INFO] [stderr]    Compiling derive_arbitrary v1.1.3
[INFO] [stderr]    Compiling argh_derive v0.1.8
[INFO] [stderr]    Compiling derive_more v0.99.17
[INFO] [stderr]    Compiling env_logger v0.9.0
[INFO] [stderr]    Compiling arbitrary v1.1.3
[INFO] [stderr]    Compiling thiserror v1.0.32
[INFO] [stderr]    Compiling pest v2.2.1
[INFO] [stderr]    Compiling snailquote v0.3.1
[INFO] [stderr]    Compiling argh v0.1.8
[INFO] [stderr]    Compiling catvec v0.1.6
[INFO] [stderr]    Compiling pest_meta v2.2.1
[INFO] [stderr]    Compiling imbl v1.0.1
[INFO] [stderr]    Compiling pest_generator v2.2.1
[INFO] [stderr]    Compiling pest_derive v2.2.1
[INFO] [stderr]    Compiling melodeon v0.5.16 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/grammar/parser.rs:284:40
[INFO] [stdout]     |
[INFO] [stdout] 284 |         .fold(String::from(""), |a, b| (a.tap_mut(|a| a.push_str(b))));
[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] 284 -         .fold(String::from(""), |a, b| (a.tap_mut(|a| a.push_str(b))));
[INFO] [stdout] 284 +         .fold(String::from(""), |a, b| a.tap_mut(|a| a.push_str(b)) );
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]    --> src/codegen.rs:132:24
[INFO] [stdout]     |
[INFO] [stdout] 132 |         ExprInner::Exp(k, base, exp) => [
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/typesys/types.rs:237:21
[INFO] [stdout]     |
[INFO] [stdout] 237 |     pub fn subtract(&self, other: &Self) -> Cow<Self> {
[INFO] [stdout]     |                     ^^^^^                   ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 237 |     pub fn subtract(&self, other: &Self) -> Cow<'_, Self> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/typesys/types.rs:456:18
[INFO] [stdout]     |
[INFO] [stdout] 456 |     pub fn index(&self, idx: Option<&ConstExpr<CVar>>) -> Option<Cow<Self>> {
[INFO] [stdout]     |                  ^^^^^ the lifetime is elided here               ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 456 |     pub fn index(&self, idx: Option<&ConstExpr<CVar>>) -> Option<Cow<'_, Self>> {
[INFO] [stdout]     |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/typesys/types.rs:780:26
[INFO] [stdout]     |
[INFO] [stdout] 780 |     pub fn try_to_vector(&self) -> Option<Cow<List<Self>>> {
[INFO] [stdout]     |                          ^^^^^            ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 780 |     pub fn try_to_vector(&self) -> Option<Cow<'_, List<Self>>> {
[INFO] [stdout]     |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.59s
[INFO] running `Command { std: "docker" "inspect" "e2c1b78439fe2f543f20a9c9e679e9f39f646825e522e32675fc4ccecac1374c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2c1b78439fe2f543f20a9c9e679e9f39f646825e522e32675fc4ccecac1374c", kill_on_drop: false }`
[INFO] [stdout] e2c1b78439fe2f543f20a9c9e679e9f39f646825e522e32675fc4ccecac1374c
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9f98d8d10e836781445d2760aeffc73cf36f1d03f542292191f41c42915d293
[INFO] running `Command { std: "docker" "start" "-a" "f9f98d8d10e836781445d2760aeffc73cf36f1d03f542292191f41c42915d293", kill_on_drop: false }`
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/grammar/parser.rs:284:40
[INFO] [stdout]     |
[INFO] [stdout] 284 |         .fold(String::from(""), |a, b| (a.tap_mut(|a| a.push_str(b))));
[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] 284 -         .fold(String::from(""), |a, b| (a.tap_mut(|a| a.push_str(b))));
[INFO] [stdout] 284 +         .fold(String::from(""), |a, b| a.tap_mut(|a| a.push_str(b)) );
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]    --> src/codegen.rs:132:24
[INFO] [stdout]     |
[INFO] [stdout] 132 |         ExprInner::Exp(k, base, exp) => [
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/typesys/types.rs:237:21
[INFO] [stdout]     |
[INFO] [stdout] 237 |     pub fn subtract(&self, other: &Self) -> Cow<Self> {
[INFO] [stdout]     |                     ^^^^^                   ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 237 |     pub fn subtract(&self, other: &Self) -> Cow<'_, Self> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling melodeon v0.5.16 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/typesys/types.rs:456:18
[INFO] [stdout]     |
[INFO] [stdout] 456 |     pub fn index(&self, idx: Option<&ConstExpr<CVar>>) -> Option<Cow<Self>> {
[INFO] [stdout]     |                  ^^^^^ the lifetime is elided here               ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 456 |     pub fn index(&self, idx: Option<&ConstExpr<CVar>>) -> Option<Cow<'_, Self>> {
[INFO] [stdout]     |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/typesys/types.rs:780:26
[INFO] [stdout]     |
[INFO] [stdout] 780 |     pub fn try_to_vector(&self) -> Option<Cow<List<Self>>> {
[INFO] [stdout]     |                          ^^^^^            ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 780 |     pub fn try_to_vector(&self) -> Option<Cow<'_, List<Self>>> {
[INFO] [stdout]     |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around closure body
[INFO] [stdout]    --> src/grammar/parser.rs:284:40
[INFO] [stdout]     |
[INFO] [stdout] 284 |         .fold(String::from(""), |a, b| (a.tap_mut(|a| a.push_str(b))));
[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] 284 -         .fold(String::from(""), |a, b| (a.tap_mut(|a| a.push_str(b))));
[INFO] [stdout] 284 +         .fold(String::from(""), |a, b| a.tap_mut(|a| a.push_str(b)) );
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `k`
[INFO] [stdout]    --> src/codegen.rs:132:24
[INFO] [stdout]     |
[INFO] [stdout] 132 |         ExprInner::Exp(k, base, exp) => [
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/typesys/types.rs:237:21
[INFO] [stdout]     |
[INFO] [stdout] 237 |     pub fn subtract(&self, other: &Self) -> Cow<Self> {
[INFO] [stdout]     |                     ^^^^^                   ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 237 |     pub fn subtract(&self, other: &Self) -> Cow<'_, Self> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/typesys/types.rs:456:18
[INFO] [stdout]     |
[INFO] [stdout] 456 |     pub fn index(&self, idx: Option<&ConstExpr<CVar>>) -> Option<Cow<Self>> {
[INFO] [stdout]     |                  ^^^^^ the lifetime is elided here               ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 456 |     pub fn index(&self, idx: Option<&ConstExpr<CVar>>) -> Option<Cow<'_, Self>> {
[INFO] [stdout]     |                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/typesys/types.rs:780:26
[INFO] [stdout]     |
[INFO] [stdout] 780 |     pub fn try_to_vector(&self) -> Option<Cow<List<Self>>> {
[INFO] [stdout]     |                          ^^^^^            ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                          |
[INFO] [stdout]     |                          the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 780 |     pub fn try_to_vector(&self) -> Option<Cow<'_, List<Self>>> {
[INFO] [stdout]     |                                               +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 9.09s
[INFO] running `Command { std: "docker" "inspect" "f9f98d8d10e836781445d2760aeffc73cf36f1d03f542292191f41c42915d293", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9f98d8d10e836781445d2760aeffc73cf36f1d03f542292191f41c42915d293", kill_on_drop: false }`
[INFO] [stdout] f9f98d8d10e836781445d2760aeffc73cf36f1d03f542292191f41c42915d293
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a58c66f2409db51a20f41973191d2953afec8c84e07abee86f3d10b1edc7190b
[INFO] running `Command { std: "docker" "start" "-a" "a58c66f2409db51a20f41973191d2953afec8c84e07abee86f3d10b1edc7190b", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary parentheses around closure body
[INFO] [stderr]    --> src/grammar/parser.rs:284:40
[INFO] [stderr]     |
[INFO] [stderr] 284 |         .fold(String::from(""), |a, b| (a.tap_mut(|a| a.push_str(b))));
[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] 284 -         .fold(String::from(""), |a, b| (a.tap_mut(|a| a.push_str(b))));
[INFO] [stderr] 284 +         .fold(String::from(""), |a, b| a.tap_mut(|a| a.push_str(b)) );
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `k`
[INFO] [stderr]    --> src/codegen.rs:132:24
[INFO] [stderr]     |
[INFO] [stderr] 132 |         ExprInner::Exp(k, base, exp) => [
[INFO] [stderr]     |                        ^ help: if this is intentional, prefix it with an underscore: `_k`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/typesys/types.rs:237:21
[INFO] [stderr]     |
[INFO] [stderr] 237 |     pub fn subtract(&self, other: &Self) -> Cow<Self> {
[INFO] [stderr]     |                     ^^^^^                   ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 237 |     pub fn subtract(&self, other: &Self) -> Cow<'_, Self> {
[INFO] [stderr]     |                                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/typesys/types.rs:456:18
[INFO] [stderr]     |
[INFO] [stderr] 456 |     pub fn index(&self, idx: Option<&ConstExpr<CVar>>) -> Option<Cow<Self>> {
[INFO] [stderr]     |                  ^^^^^ the lifetime is elided here               ^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 456 |     pub fn index(&self, idx: Option<&ConstExpr<CVar>>) -> Option<Cow<'_, Self>> {
[INFO] [stderr]     |                                                                      +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/typesys/types.rs:780:26
[INFO] [stderr]     |
[INFO] [stderr] 780 |     pub fn try_to_vector(&self) -> Option<Cow<List<Self>>> {
[INFO] [stderr]     |                          ^^^^^            ^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |                          |
[INFO] [stderr]     |                          the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 780 |     pub fn try_to_vector(&self) -> Option<Cow<'_, List<Self>>> {
[INFO] [stderr]     |                                               +++
[INFO] [stderr] 
[INFO] [stderr] warning: `melodeon` (lib) generated 5 warnings (run `cargo fix --lib -p melodeon` to apply 5 suggestions)
[INFO] [stderr] warning: `melodeon` (lib test) generated 5 warnings (5 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/melodeon-fce990f21ba78565)
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test codegen::tests::expt_codegen ... ok
[INFO] [stdout] test codegen::tests::vector_slice ... ok
[INFO] [stdout] test typesys::types::tests::tricky_range ... ok
[INFO] [stdout] test codegen::tests::empty_byte_string ... ok
[INFO] [stdout] test typesys::typecheck::tests::typecheck_issue4 ... ok
[INFO] [stdout] test typesys::types::tests::simple_fill ... ok
[INFO] [stdout] test typesys::types::tests::tricky_unification ... ok
[INFO] [stdout] test codegen::tests::tricky_codegen ... ok
[INFO] [stdout] test typesys::typecheck::tests::typecheck_whole ... ok
[INFO] [stdout] test codegen::tests::simple_codegen ... ok
[INFO] [stdout] test typesys::typecheck::tests::typecheck_tricky ... ok
[INFO] [stdout] test grammar::parser::tests::test_parse ... ok
[INFO] [stdout] test typesys::types::tests::sub_hole_punching ... ok
[INFO] [stdout] test typesys::typecheck::tests::typecheck_simple ... ok
[INFO] [stdout] test typesys::typecheck::tests::typecheck_issue15 ... ok
[INFO] [stdout] test codegen::tests::vref_stuff ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- codegen::tests::vref_stuff stdout ----
[INFO] [stdout] [DEBUG melodeon::grammar::parser] parsing 130 chars at whatever.melo
[INFO] [stdout] [TRACE melodeon::grammar::parser] expr rule let_expr on "let nested = [[0,1], [2,3], [4,5]] in for val in vref(nested, 1) collect val + 1\n                        "
[INFO] [stdout] [TRACE melodeon::grammar::parser]  expr rule logic_expr on "[[0,1], [2,3], [4,5]] "
[INFO] [stdout] [TRACE melodeon::grammar::parser]   expr rule bitlogic_expr on "[[0,1], [2,3], [4,5]] "
[INFO] [stdout] [TRACE melodeon::grammar::parser]    expr rule rel_expr on "[[0,1], [2,3], [4,5]] "
[INFO] [stdout] [TRACE melodeon::grammar::parser]     expr rule shift_expr on "[[0,1], [2,3], [4,5]] "
[INFO] [stdout] [TRACE melodeon::grammar::parser]      expr rule add_expr on "[[0,1], [2,3], [4,5]] "
[INFO] [stdout] [TRACE melodeon::grammar::parser]       expr rule mult_expr on "[[0,1], [2,3], [4,5]] "
[INFO] [stdout] [TRACE melodeon::grammar::parser]        expr rule uni_expr on "[[0,1], [2,3], [4,5]] "
[INFO] [stdout] [TRACE melodeon::grammar::parser]         expr rule apply_expr on "[[0,1], [2,3], [4,5]] "
[INFO] [stdout] [TRACE melodeon::grammar::parser]          expr rule vector_literal on "[[0,1], [2,3], [4,5]]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]           expr rule logic_expr on "[0,1]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]            expr rule bitlogic_expr on "[0,1]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]             expr rule rel_expr on "[0,1]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]              expr rule shift_expr on "[0,1]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]               expr rule add_expr on "[0,1]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                expr rule mult_expr on "[0,1]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                 expr rule uni_expr on "[0,1]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                  expr rule apply_expr on "[0,1]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                   expr rule vector_literal on "[0,1]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                    expr rule logic_expr on "0"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                     expr rule bitlogic_expr on "0"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                      expr rule rel_expr on "0"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                       expr rule shift_expr on "0"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                        expr rule add_expr on "0"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                         expr rule mult_expr on "0"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                          expr rule uni_expr on "0"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                           expr rule apply_expr on "0"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                            expr rule nat_literal on "0"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                    expr rule logic_expr on "1"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                     expr rule bitlogic_expr on "1"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                      expr rule rel_expr on "1"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                       expr rule shift_expr on "1"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                        expr rule add_expr on "1"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                         expr rule mult_expr on "1"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                          expr rule uni_expr on "1"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                           expr rule apply_expr on "1"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                            expr rule nat_literal on "1"
[INFO] [stdout] [TRACE melodeon::grammar::parser]           expr rule logic_expr on "[2,3]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]            expr rule bitlogic_expr on "[2,3]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]             expr rule rel_expr on "[2,3]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]              expr rule shift_expr on "[2,3]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]               expr rule add_expr on "[2,3]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                expr rule mult_expr on "[2,3]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                 expr rule uni_expr on "[2,3]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                  expr rule apply_expr on "[2,3]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                   expr rule vector_literal on "[2,3]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                    expr rule logic_expr on "2"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                     expr rule bitlogic_expr on "2"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                      expr rule rel_expr on "2"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                       expr rule shift_expr on "2"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                        expr rule add_expr on "2"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                         expr rule mult_expr on "2"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                          expr rule uni_expr on "2"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                           expr rule apply_expr on "2"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                            expr rule nat_literal on "2"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                    expr rule logic_expr on "3"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                     expr rule bitlogic_expr on "3"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                      expr rule rel_expr on "3"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                       expr rule shift_expr on "3"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                        expr rule add_expr on "3"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                         expr rule mult_expr on "3"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                          expr rule uni_expr on "3"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                           expr rule apply_expr on "3"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                            expr rule nat_literal on "3"
[INFO] [stdout] [TRACE melodeon::grammar::parser]           expr rule logic_expr on "[4,5]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]            expr rule bitlogic_expr on "[4,5]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]             expr rule rel_expr on "[4,5]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]              expr rule shift_expr on "[4,5]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]               expr rule add_expr on "[4,5]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                expr rule mult_expr on "[4,5]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                 expr rule uni_expr on "[4,5]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                  expr rule apply_expr on "[4,5]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                   expr rule vector_literal on "[4,5]"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                    expr rule logic_expr on "4"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                     expr rule bitlogic_expr on "4"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                      expr rule rel_expr on "4"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                       expr rule shift_expr on "4"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                        expr rule add_expr on "4"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                         expr rule mult_expr on "4"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                          expr rule uni_expr on "4"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                           expr rule apply_expr on "4"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                            expr rule nat_literal on "4"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                    expr rule logic_expr on "5"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                     expr rule bitlogic_expr on "5"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                      expr rule rel_expr on "5"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                       expr rule shift_expr on "5"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                        expr rule add_expr on "5"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                         expr rule mult_expr on "5"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                          expr rule uni_expr on "5"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                           expr rule apply_expr on "5"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                            expr rule nat_literal on "5"
[INFO] [stdout] [TRACE melodeon::grammar::parser]  expr rule for_expr on "for val in vref(nested, 1) collect val + 1\n                        "
[INFO] [stdout] [TRACE melodeon::grammar::parser]   expr rule logic_expr on "vref(nested, 1) "
[INFO] [stdout] [TRACE melodeon::grammar::parser]    expr rule bitlogic_expr on "vref(nested, 1) "
[INFO] [stdout] [TRACE melodeon::grammar::parser]     expr rule rel_expr on "vref(nested, 1) "
[INFO] [stdout] [TRACE melodeon::grammar::parser]      expr rule shift_expr on "vref(nested, 1) "
[INFO] [stdout] [TRACE melodeon::grammar::parser]       expr rule add_expr on "vref(nested, 1) "
[INFO] [stdout] [TRACE melodeon::grammar::parser]        expr rule mult_expr on "vref(nested, 1) "
[INFO] [stdout] [TRACE melodeon::grammar::parser]         expr rule uni_expr on "vref(nested, 1)"
[INFO] [stdout] [TRACE melodeon::grammar::parser]          expr rule apply_expr on "vref(nested, 1)"
[INFO] [stdout] [TRACE melodeon::grammar::parser]           expr rule var_name on "vref"
[INFO] [stdout] [TRACE melodeon::grammar::parser]           expr rule logic_expr on "nested"
[INFO] [stdout] [TRACE melodeon::grammar::parser]            expr rule bitlogic_expr on "nested"
[INFO] [stdout] [TRACE melodeon::grammar::parser]             expr rule rel_expr on "nested"
[INFO] [stdout] [TRACE melodeon::grammar::parser]              expr rule shift_expr on "nested"
[INFO] [stdout] [TRACE melodeon::grammar::parser]               expr rule add_expr on "nested"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                expr rule mult_expr on "nested"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                 expr rule uni_expr on "nested"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                  expr rule apply_expr on "nested"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                   expr rule var_name on "nested"
[INFO] [stdout] [TRACE melodeon::grammar::parser]           expr rule logic_expr on "1"
[INFO] [stdout] [TRACE melodeon::grammar::parser]            expr rule bitlogic_expr on "1"
[INFO] [stdout] [TRACE melodeon::grammar::parser]             expr rule rel_expr on "1"
[INFO] [stdout] [TRACE melodeon::grammar::parser]              expr rule shift_expr on "1"
[INFO] [stdout] [TRACE melodeon::grammar::parser]               expr rule add_expr on "1"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                expr rule mult_expr on "1"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                 expr rule uni_expr on "1"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                  expr rule apply_expr on "1"
[INFO] [stdout] [TRACE melodeon::grammar::parser]                   expr rule nat_literal on "1"
[INFO] [stdout] [TRACE melodeon::grammar::parser]   expr rule logic_expr on "val + 1\n                        "
[INFO] [stdout] [TRACE melodeon::grammar::parser]    expr rule bitlogic_expr on "val + 1\n                        "
[INFO] [stdout] [TRACE melodeon::grammar::parser]     expr rule rel_expr on "val + 1\n                        "
[INFO] [stdout] [TRACE melodeon::grammar::parser]      expr rule shift_expr on "val + 1\n                        "
[INFO] [stdout] [TRACE melodeon::grammar::parser]       expr rule add_expr on "val + 1\n                        "
[INFO] [stdout] [TRACE melodeon::grammar::parser]        expr rule mult_expr on "val "
[INFO] [stdout] [TRACE melodeon::grammar::parser]         expr rule uni_expr on "val "
[INFO] [stdout] [TRACE melodeon::grammar::parser]          expr rule apply_expr on "val "
[INFO] [stdout] [TRACE melodeon::grammar::parser]           expr rule var_name on "val"
[INFO] [stdout] [TRACE melodeon::grammar::parser]        expr rule mult_expr on "1\n                        "
[INFO] [stdout] [TRACE melodeon::grammar::parser]         expr rule uni_expr on "1\n                        "
[INFO] [stdout] [TRACE melodeon::grammar::parser]          expr rule apply_expr on "1\n                        "
[INFO] [stdout] [TRACE melodeon::grammar::parser]           expr rule nat_literal on "1"
[INFO] [stdout] [DEBUG melodeon::typesys::typecheck] typechecking whole program rooted at Some("whatever.melo") with 0 defs
[INFO] [stdout] [DEBUG melodeon::grammar::raw_ast] definitions sorted: []
[INFO] [stdout] [TRACE melodeon::typesys::typecheck] initial definitions created: []
[INFO] [stdout] 
[INFO] [stdout] thread 'codegen::tests::vref_stuff' (29) panicked at src/codegen.rs:655:18:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: undefined function: vref
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x57538000a792 - std::backtrace_rs::backtrace::libunwind::trace::h16acf28769fcd909
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x57538000a792 - std::backtrace_rs::backtrace::trace_unsynchronized::hb5541aa5d4f92513
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x57538000a792 - std::sys::backtrace::_print_fmt::h8ac8268cb667a306
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x57538000a792 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h47627beda0767f4c
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x57538001b5af - core::fmt::rt::Argument::fmt::h686a01ad57c1c92a
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x57538001b5af - core::fmt::write::h8a63064c67176fd8
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/fmt/mod.rs:1469:25
[INFO] [stdout]    6:     0x57537ffd7973 - std::io::default_write_fmt::hd4797e693c0ec256
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x57537ffd7973 - std::io::Write::write_fmt::h791e240ad2720c99
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x57537ffe39c2 - std::sys::backtrace::BacktraceLock::print::h4634d27c0afbaebb
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x57537ffe882f - std::panicking::default_hook::{{closure}}::h23e0299d4738b766
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:301:27
[INFO] [stdout]   10:     0x57537ffe86c1 - std::panicking::default_hook::hfeec6294e8751b62
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:325:9
[INFO] [stdout]   11:     0x57537ff53ffe - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h3f5a16438cee2b4e
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:2019:9
[INFO] [stdout]   12:     0x57537ff53ffe - test::test_main_with_exit_callback::{{closure}}::h9214498cef9aafc5
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x57537ffe8e3f - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hdb18da3e68df7464
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:2019:9
[INFO] [stdout]   14:     0x57537ffe8e3f - std::panicking::panic_with_hook::hd57cd463d793ed79
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:842:13
[INFO] [stdout]   15:     0x57537ffe8c9a - std::panicking::panic_handler::{{closure}}::hddd6216c3fddee3b
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:707:13
[INFO] [stdout]   16:     0x57537ffe3af9 - std::sys::backtrace::__rust_end_short_backtrace::h5e7a56f283378525
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:174:18
[INFO] [stdout]   17:     0x57537ffcb95d - __rustc[256c90bb7e548b45]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:698:5
[INFO] [stdout]   18:     0x575380024470 - core::panicking::panic_fmt::hf19c198748ef6a95
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/panicking.rs:80:14
[INFO] [stdout]   19:     0x5753800239a6 - core::result::unwrap_failed::he81173b5792ad6b0
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/result.rs:1862:5
[INFO] [stdout]   20:     0x57537fc55480 - core::result::Result<T,E>::unwrap::h8872cbda3f270e8a
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/result.rs:1233:23
[INFO] [stdout]   21:     0x57537fc55480 - melodeon::codegen::tests::vref_stuff::h70d95322412f60be
[INFO] [stdout]                                at /opt/rustwide/workdir/src/codegen.rs:655:18
[INFO] [stdout]   22:     0x57537fc555d7 - melodeon::codegen::tests::vref_stuff::{{closure}}::h7a1c3c79ed846de0
[INFO] [stdout]                                at /opt/rustwide/workdir/src/codegen.rs:639:20
[INFO] [stdout]   23:     0x57537fc3e5e6 - core::ops::function::FnOnce::call_once::h2a5fc2929d464e57
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x57537ff53e4b - core::ops::function::FnOnce::call_once::h43f43c5185cf39c2
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x57537ff53e4b - test::__rust_begin_short_backtrace::hc4fa634eb2764bdc
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/test/src/lib.rs:663:18
[INFO] [stdout]   26:     0x57537ff68468 - test::run_test_in_process::{{closure}}::h9f4b799a5211b72a
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/test/src/lib.rs:686:74
[INFO] [stdout]   27:     0x57537ff68468 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::ha572bf7dc5230a8f
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   28:     0x57537ff68468 - std::panicking::catch_unwind::do_call::hfd6ff51f25dd177b
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40
[INFO] [stdout]   29:     0x57537ff68468 - std::panicking::catch_unwind::h8609b446221def5f
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19
[INFO] [stdout]   30:     0x57537ff68468 - std::panic::catch_unwind::h362f73cc48531e26
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x57537ff68468 - test::run_test_in_process::hf52fd21d696aae67
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/test/src/lib.rs:686:27
[INFO] [stdout]   32:     0x57537ff68468 - test::run_test::{{closure}}::h7e780b8354e6d007
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/test/src/lib.rs:607:43
[INFO] [stdout]   33:     0x57537ff41234 - test::run_test::{{closure}}::hdc2695f2276aad3e
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/test/src/lib.rs:637:41
[INFO] [stdout]   34:     0x57537ff41234 - std::sys::backtrace::__rust_begin_short_backtrace::h2555b2113ed90fc9
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/backtrace.rs:158:18
[INFO] [stdout]   35:     0x57537ff44b6a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h99800d480987dfb6
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/thread/mod.rs:562:17
[INFO] [stdout]   36:     0x57537ff44b6a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hbbb69b5294b2221b
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stdout]   37:     0x57537ff44b6a - std::panicking::catch_unwind::do_call::h495689350c27df20
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:590:40
[INFO] [stdout]   38:     0x57537ff44b6a - std::panicking::catch_unwind::hf22437c51d1b3740
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panicking.rs:553:19
[INFO] [stdout]   39:     0x57537ff44b6a - std::panic::catch_unwind::habda1a57de8231f8
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x57537ff44b6a - std::thread::Builder::spawn_unchecked_::{{closure}}::h5833d8dda8c7e80b
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/thread/mod.rs:560:30
[INFO] [stdout]   41:     0x57537ff44b6a - core::ops::function::FnOnce::call_once{{vtable.shim}}::ha2910283a5058402
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x57537ffdedef - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::he4d85cb537521972
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/alloc/src/boxed.rs:2005:9
[INFO] [stdout]   43:     0x57537ffdedef - std::sys::thread::unix::Thread::new::thread_start::hbaf586a9e50a98cd
[INFO] [stdout]                                at /rustc/3b4dd9bf1410f8da6329baa36ce5e37673cbbd1f/library/std/src/sys/thread/unix.rs:126:17
[INFO] [stdout]   44:     0x7428d1d95aa4 - <unknown>
[INFO] [stdout]   45:     0x7428d1e22a64 - clone
[INFO] [stdout]   46:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     codegen::tests::vref_stuff
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 15 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "a58c66f2409db51a20f41973191d2953afec8c84e07abee86f3d10b1edc7190b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a58c66f2409db51a20f41973191d2953afec8c84e07abee86f3d10b1edc7190b", kill_on_drop: false }`
[INFO] [stdout] a58c66f2409db51a20f41973191d2953afec8c84e07abee86f3d10b1edc7190b
