[INFO] cloning repository https://github.com/pranavnt/nylon
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/pranavnt/nylon" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpranavnt%2Fnylon", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpranavnt%2Fnylon'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b7690d0e95080e00fb9f7a9da9e1a27497fd033f
[INFO] checking pranavnt/nylon against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fpranavnt%2Fnylon" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/pranavnt/nylon on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/pranavnt/nylon
[INFO] finished tweaking git repo https://github.com/pranavnt/nylon
[INFO] tweaked toml for git repo https://github.com/pranavnt/nylon written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/pranavnt/nylon 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sct v0.7.1
[INFO] [stderr]   Downloaded autocfg v0.1.8
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[INFO] [stderr]   Downloaded buf_redux v0.8.4
[INFO] [stderr]   Downloaded phf_codegen v0.7.24
[INFO] [stderr]   Downloaded iron v0.6.1
[INFO] [stderr]   Downloaded base64 v0.9.3
[INFO] [stderr]   Downloaded hyper v0.10.16
[INFO] [stderr]   Downloaded rustls v0.21.10
[INFO] [stderr]   Downloaded openai_api_rust v0.1.8
[INFO] [stderr]   Downloaded mustache v0.9.0
[INFO] [stderr]   Downloaded time v0.1.45
[INFO] [stderr]   Downloaded nickel v0.11.0
[INFO] [stderr]   Downloaded multipart v0.18.0
[INFO] [stderr]   Downloaded rustls-webpki v0.101.7
[INFO] [stderr]   Downloaded syn v2.0.43
[INFO] [stderr]   Downloaded webpki-roots v0.25.3
[INFO] [stderr]   Downloaded twoway v0.1.8
[INFO] [stderr]   Downloaded ureq v2.9.1
[INFO] [stderr]   Downloaded unicase v1.4.2
[INFO] [stderr]   Downloaded tiny_http v0.6.4
[INFO] [stderr]   Downloaded version_check v0.1.5
[INFO] [stderr]   Downloaded plugin v0.2.6
[INFO] [stderr]   Downloaded traitobject v0.1.0
[INFO] [stderr]   Downloaded typemap v0.3.3
[INFO] [stderr]   Downloaded safemem v0.3.3
[INFO] [stderr]   Downloaded ascii v0.8.7
[INFO] [stderr]   Downloaded matches v0.1.10
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[INFO] [stderr]   Downloaded ring v0.17.7
[INFO] [stderr]   Downloaded chunked_transfer v0.3.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c67fa1c66925e1b5bc11eb00c1122bd3dc4fdf194dab8cab9b8cd4c468dad4d5
[INFO] running `Command { std: "docker" "start" "-a" "c67fa1c66925e1b5bc11eb00c1122bd3dc4fdf194dab8cab9b8cd4c468dad4d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c67fa1c66925e1b5bc11eb00c1122bd3dc4fdf194dab8cab9b8cd4c468dad4d5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c67fa1c66925e1b5bc11eb00c1122bd3dc4fdf194dab8cab9b8cd4c468dad4d5", kill_on_drop: false }`
[INFO] [stdout] c67fa1c66925e1b5bc11eb00c1122bd3dc4fdf194dab8cab9b8cd4c468dad4d5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 216b0d058aa958f03c06fbdce4857c42da9912f1c8887ef4af6e0ae2a96e6f12
[INFO] running `Command { std: "docker" "start" "-a" "216b0d058aa958f03c06fbdce4857c42da9912f1c8887ef4af6e0ae2a96e6f12", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling rand_core v0.4.2
[INFO] [stderr]     Checking tinyvec_macros v0.1.1
[INFO] [stderr]     Checking log v0.4.20
[INFO] [stderr]    Compiling proc-macro2 v1.0.71
[INFO] [stderr]     Checking unicode-bidi v0.3.14
[INFO] [stderr]     Checking tinyvec v1.6.0
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]    Compiling siphasher v0.2.3
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling rand_jitter v0.1.4
[INFO] [stderr]    Compiling unicase v2.7.0
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]    Compiling serde v1.0.193
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]    Compiling syn v2.0.43
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]    Compiling phf v0.7.24
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling serde_json v1.0.108
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]     Checking untrusted v0.9.0
[INFO] [stderr]     Checking spin v0.9.8
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking aho-corasick v1.1.2
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[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking url v1.7.2
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[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking ryu v1.0.16
[INFO] [stderr]    Compiling rustix v0.38.28
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]     Checking regex-syntax v0.8.2
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking hyper v0.10.16
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling mime_guess v2.0.4
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]    Compiling ring v0.17.7
[INFO] [stderr]    Compiling mime_guess v1.8.8
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.12
[INFO] [stderr]    Compiling rustls v0.21.10
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]     Checking percent-encoding v2.3.1
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking iana-time-zone v0.1.58
[INFO] [stderr]     Checking form_urlencoded v1.2.1
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking miniz_oxide v0.7.1
[INFO] [stderr]     Checking idna v0.5.0
[INFO] [stderr]     Checking fastrand v2.0.1
[INFO] [stderr]     Checking ascii v0.8.7
[INFO] [stderr]    Compiling serde_derive v1.0.193
[INFO] [stderr]     Checking mime v0.3.17
[INFO] [stderr]     Checking groupable v0.2.0
[INFO] [stderr]     Checking regex-automata v0.4.3
[INFO] [stderr]     Checking chunked_transfer v0.3.1
[INFO] [stderr]     Checking url v2.5.0
[INFO] [stderr]     Checking flate2 v1.0.28
[INFO] [stderr]     Checking tiny_http v0.6.4
[INFO] [stderr]     Checking iron v0.6.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking twoway v0.1.8
[INFO] [stderr]     Checking buf_redux v0.8.4
[INFO] [stderr]     Checking webpki-roots v0.25.3
[INFO] [stderr]     Checking base64 v0.21.5
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]     Checking tempfile v3.8.1
[INFO] [stderr]     Checking regex v1.10.2
[INFO] [stderr]     Checking rustls-webpki v0.101.7
[INFO] [stderr]     Checking sct v0.7.1
[INFO] [stderr]     Checking mustache v0.9.0
[INFO] [stderr]     Checking nickel v0.11.0
[INFO] [stderr]     Checking ureq v2.9.1
[INFO] [stderr]     Checking multipart v0.18.0
[INFO] [stderr]     Checking openai_api_rust v0.1.8
[INFO] [stderr]     Checking nylon v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]  --> src/model.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::string::String;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `String` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `utils::*`
[INFO] [stdout]  --> src/lib.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use utils::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `String` is imported redundantly
[INFO] [stdout]  --> src/model.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::string::String;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:144:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `String` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `utils::*`
[INFO] [stdout]  --> src/lib.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub use utils::*;
[INFO] [stdout]   |         ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/dataset.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn save(&self, path: &str) {
[INFO] [stdout]    |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/dataset.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn load(path: &str) -> Self {
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/dataset.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub fn save(&self, path: &str) {
[INFO] [stdout]    |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `path`
[INFO] [stdout]   --> src/dataset.rs:15:17
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn load(path: &str) -> Self {
[INFO] [stdout]    |                 ^^^^ help: if this is intentional, prefix it with an underscore: `_path`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 46.04s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: buf_redux v0.8.4, multipart v0.18.0, traitobject v0.1.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "216b0d058aa958f03c06fbdce4857c42da9912f1c8887ef4af6e0ae2a96e6f12", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "216b0d058aa958f03c06fbdce4857c42da9912f1c8887ef4af6e0ae2a96e6f12", kill_on_drop: false }`
[INFO] [stdout] 216b0d058aa958f03c06fbdce4857c42da9912f1c8887ef4af6e0ae2a96e6f12