[INFO] cloning repository https://github.com/Ioloboss/flashcards
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Ioloboss/flashcards" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIoloboss%2Fflashcards", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIoloboss%2Fflashcards'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 887a8aa02484ceee5a865f2684edc501aeb54bcd
[INFO] checking Ioloboss/flashcards against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIoloboss%2Fflashcards" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ioloboss/flashcards 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/Ioloboss/flashcards
[INFO] finished tweaking git repo https://github.com/Ioloboss/flashcards
[INFO] tweaked toml for git repo https://github.com/Ioloboss/flashcards written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Ioloboss/flashcards 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6af35446e7c01d22c8cf65df9cef84e915dec2dc943019d8463c858c2354a405
[INFO] running `Command { std: "docker" "start" "-a" "6af35446e7c01d22c8cf65df9cef84e915dec2dc943019d8463c858c2354a405", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6af35446e7c01d22c8cf65df9cef84e915dec2dc943019d8463c858c2354a405", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6af35446e7c01d22c8cf65df9cef84e915dec2dc943019d8463c858c2354a405", kill_on_drop: false }`
[INFO] [stdout] 6af35446e7c01d22c8cf65df9cef84e915dec2dc943019d8463c858c2354a405
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2ca9164688bc5bea5c9ed5e46366764ff75790b8580d4f09c9d8f9e2b90f761a
[INFO] running `Command { std: "docker" "start" "-a" "2ca9164688bc5bea5c9ed5e46366764ff75790b8580d4f09c9d8f9e2b90f761a", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking smallvec v1.13.1
[INFO] [stderr]     Checking zerocopy v0.7.32
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]     Checking allocator-api2 v0.2.16
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]     Checking itertools v0.12.1
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking castaway v0.2.2
[INFO] [stderr]     Checking compact_str v0.7.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking lru v0.12.3
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking unicode-segmentation v1.11.0
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]    Compiling indoc v2.0.4
[INFO] [stderr]     Checking crossterm v0.27.0
[INFO] [stderr]    Compiling strum_macros v0.26.1
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]    Compiling stability v0.1.1
[INFO] [stderr]     Checking strum v0.26.1
[INFO] [stderr]     Checking ratatui v0.26.1
[INFO] [stderr]     Checking flashcards v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `csv` is imported redundantly
[INFO] [stdout]  --> src/readwrite.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | use  csv;
[INFO] [stdout]   |      ^^^ the item `csv` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `csv` is imported redundantly
[INFO] [stdout]  --> src/readwrite.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | use  csv;
[INFO] [stdout]   |      ^^^ the item `csv` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:96:7
[INFO] [stdout]    |
[INFO] [stdout] 96 |         for i in 0..self.queue.get_flashcards_left() {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:96:7
[INFO] [stdout]    |
[INFO] [stdout] 96 |         for i in 0..self.queue.get_flashcards_left() {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 28.82s
[INFO] running `Command { std: "docker" "inspect" "2ca9164688bc5bea5c9ed5e46366764ff75790b8580d4f09c9d8f9e2b90f761a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ca9164688bc5bea5c9ed5e46366764ff75790b8580d4f09c9d8f9e2b90f761a", kill_on_drop: false }`
[INFO] [stdout] 2ca9164688bc5bea5c9ed5e46366764ff75790b8580d4f09c9d8f9e2b90f761a
[INFO] checking Ioloboss/flashcards against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FIoloboss%2Fflashcards" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Ioloboss/flashcards on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Ioloboss/flashcards
[INFO] finished tweaking git repo https://github.com/Ioloboss/flashcards
[INFO] tweaked toml for git repo https://github.com/Ioloboss/flashcards written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/Ioloboss/flashcards 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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1fa2688377b2a2882b830e9742a7a23ed7617e1a954af3337db5865ab32fa5ce
[INFO] running `Command { std: "docker" "start" "-a" "1fa2688377b2a2882b830e9742a7a23ed7617e1a954af3337db5865ab32fa5ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1fa2688377b2a2882b830e9742a7a23ed7617e1a954af3337db5865ab32fa5ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fa2688377b2a2882b830e9742a7a23ed7617e1a954af3337db5865ab32fa5ce", kill_on_drop: false }`
[INFO] [stdout] 1fa2688377b2a2882b830e9742a7a23ed7617e1a954af3337db5865ab32fa5ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 578b44288c6e226e1ed617d5d064ce33bf78b1ae12843a98773b247822bea2ee
[INFO] running `Command { std: "docker" "start" "-a" "578b44288c6e226e1ed617d5d064ce33bf78b1ae12843a98773b247822bea2ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling proc-macro2 v1.0.78
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling rustversion v1.0.14
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling parking_lot_core v0.9.9
[INFO] [stderr]    Compiling lock_api v0.4.11
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]     Checking once_cell v1.19.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking zerocopy v0.7.32
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking smallvec v1.13.1
[INFO] [stderr]    Compiling ahash v0.8.11
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking itoa v1.0.10
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling paste v1.0.14
[INFO] [stderr]     Checking allocator-api2 v0.2.16
[INFO] [stderr]    Compiling heck v0.4.1
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]     Checking either v1.10.0
[INFO] [stderr]     Checking memchr v2.7.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking itertools v0.12.1
[INFO] [stderr]     Checking castaway v0.2.2
[INFO] [stderr]    Compiling syn v2.0.52
[INFO] [stderr]     Checking compact_str v0.7.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking csv-core v0.1.11
[INFO] [stderr]     Checking lru v0.12.3
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking unicode-segmentation v1.11.0
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]    Compiling indoc v2.0.4
[INFO] [stderr]     Checking signal-hook-mio v0.2.3
[INFO] [stderr]     Checking crossterm v0.27.0
[INFO] [stderr]    Compiling strum_macros v0.26.1
[INFO] [stderr]     Checking csv v1.3.0
[INFO] [stderr]    Compiling stability v0.1.1
[INFO] [stderr]     Checking strum v0.26.1
[INFO] [stderr]     Checking ratatui v0.26.1
[INFO] [stderr]     Checking flashcards v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `csv` is imported redundantly
[INFO] [stdout]  --> src/readwrite.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | use  csv;
[INFO] [stdout]   |      ^^^ the item `csv` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `csv` is imported redundantly
[INFO] [stdout]  --> src/readwrite.rs:4:6
[INFO] [stdout]   |
[INFO] [stdout] 4 | use  csv;
[INFO] [stdout]   |      ^^^ the item `csv` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:96:7
[INFO] [stdout]    |
[INFO] [stdout] 96 |         for i in 0..self.queue.get_flashcards_left() {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/main.rs:96:7
[INFO] [stdout]    |
[INFO] [stdout] 96 |         for i in 0..self.queue.get_flashcards_left() {
[INFO] [stdout]    |             ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 30.07s
[INFO] running `Command { std: "docker" "inspect" "578b44288c6e226e1ed617d5d064ce33bf78b1ae12843a98773b247822bea2ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "578b44288c6e226e1ed617d5d064ce33bf78b1ae12843a98773b247822bea2ee", kill_on_drop: false }`
[INFO] [stdout] 578b44288c6e226e1ed617d5d064ce33bf78b1ae12843a98773b247822bea2ee