[INFO] cloning repository https://github.com/lokesh185/chrono-to-ics-prototype
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lokesh185/chrono-to-ics-prototype" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flokesh185%2Fchrono-to-ics-prototype", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2f5303a39cf078321e8942cda5cc2e85db812510
[INFO] checking lokesh185/chrono-to-ics-prototype against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flokesh185%2Fchrono-to-ics-prototype" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
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[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lokesh185/chrono-to-ics-prototype on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
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[INFO] [stdout] warning: the item `regex` is imported redundantly
[INFO] [stdout]  --> src/api/data.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use regex;
[INFO] [stdout]   |     ^^^^^ the item `regex` 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 `regex` is imported redundantly
[INFO] [stdout]  --> src/api/data.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use regex;
[INFO] [stdout]   |     ^^^^^ the item `regex` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `day` and `date` are never read
[INFO] [stdout]    --> src/api/data.rs:165:5
[INFO] [stdout]     |
[INFO] [stdout] 164 | struct TimeTableChange {
[INFO] [stdout]     |        --------------- fields in this struct
[INFO] [stdout] 165 |     day: Weekday,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 166 |     date: DateTime<Utc>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TimeTableChange` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `day` and `date` are never read
[INFO] [stdout]    --> src/api/data.rs:165:5
[INFO] [stdout]     |
[INFO] [stdout] 164 | struct TimeTableChange {
[INFO] [stdout]     |        --------------- fields in this struct
[INFO] [stdout] 165 |     day: Weekday,
[INFO] [stdout]     |     ^^^
[INFO] [stdout] 166 |     date: DateTime<Utc>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TimeTableChange` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `time_table_changes` is never read
[INFO] [stdout]    --> src/api/data.rs:178:5
[INFO] [stdout]     |
[INFO] [stdout] 169 | pub struct TimeTable {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 178 |     time_table_changes: Vec<TimeTableChange>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TimeTable` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `time_table_changes` is never read
[INFO] [stdout]    --> src/api/data.rs:178:5
[INFO] [stdout]     |
[INFO] [stdout] 169 | pub struct TimeTable {
[INFO] [stdout]     |            --------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 178 |     time_table_changes: Vec<TimeTableChange>,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TimeTable` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.43s
[INFO] running `Command { std: "docker" "inspect" "93a0a52005b401bf5045a3a826582e79c6eec6a55b83e1a53e4d1e896e77f686", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "93a0a52005b401bf5045a3a826582e79c6eec6a55b83e1a53e4d1e896e77f686", kill_on_drop: false }`
[INFO] [stdout] 93a0a52005b401bf5045a3a826582e79c6eec6a55b83e1a53e4d1e896e77f686
[INFO] checking lokesh185/chrono-to-ics-prototype against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flokesh185%2Fchrono-to-ics-prototype" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lokesh185/chrono-to-ics-prototype on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lokesh185/chrono-to-ics-prototype
[INFO] finished tweaking git repo https://github.com/lokesh185/chrono-to-ics-prototype
[INFO] tweaked toml for git repo https://github.com/lokesh185/chrono-to-ics-prototype written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/lokesh185/chrono-to-ics-prototype 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fdb362990fdb6e2f765ce8deca5a4faceb910f7bf860780ca4f5888fb9ef6eda
[INFO] running `Command { std: "docker" "start" "-a" "fdb362990fdb6e2f765ce8deca5a4faceb910f7bf860780ca4f5888fb9ef6eda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fdb362990fdb6e2f765ce8deca5a4faceb910f7bf860780ca4f5888fb9ef6eda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fdb362990fdb6e2f765ce8deca5a4faceb910f7bf860780ca4f5888fb9ef6eda", kill_on_drop: false }`
[INFO] [stdout] fdb362990fdb6e2f765ce8deca5a4faceb910f7bf860780ca4f5888fb9ef6eda
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7a9271d321a676a0bb91bfee9062480a1a3cd453b2ac1058f7b841003c1e2a6
[INFO] running `Command { std: "docker" "start" "-a" "e7a9271d321a676a0bb91bfee9062480a1a3cd453b2ac1058f7b841003c1e2a6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.152
[INFO] [stderr]    Compiling pkg-config v0.3.29
[INFO] [stderr]    Compiling memchr v2.7.1
[INFO] [stderr]     Checking bitflags v2.4.2
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]     Checking smallvec v1.13.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]     Checking libloading v0.8.1
[INFO] [stderr]    Compiling rustix v0.38.30
[INFO] [stderr]     Checking parking v2.2.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.13
[INFO] [stderr]    Compiling wayland-sys v0.31.1
[INFO] [stderr]    Compiling cc v1.0.83
[INFO] [stderr]     Checking dlib v0.5.2
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]    Compiling aho-corasick v1.1.2
[INFO] [stderr]    Compiling regex-syntax v0.8.2
[INFO] [stderr]     Checking concurrent-queue v2.4.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling typenum v1.17.0
[INFO] [stderr]     Checking getrandom v0.2.12
[INFO] [stderr]    Compiling quick-xml v0.31.0
[INFO] [stderr]    Compiling wayland-backend v0.3.3
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling toml_datetime v0.6.5
[INFO] [stderr]    Compiling winnow v0.5.39
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]    Compiling wayland-scanner v0.31.1
[INFO] [stderr]    Compiling regex-automata v0.4.5
[INFO] [stderr]     Checking event-listener v4.0.3
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-task v0.3.30
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking event-listener-strategy v0.4.0
[INFO] [stderr]     Checking generic-array v0.14.7
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]     Checking event-listener v5.0.0
[INFO] [stderr]     Checking fastrand v2.0.1
[INFO] [stderr]    Compiling thiserror v1.0.57
[INFO] [stderr]     Checking event-listener v2.5.3
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]     Checking event-listener-strategy v0.5.0
[INFO] [stderr]     Checking async-lock v3.3.0
[INFO] [stderr]    Compiling regex v1.10.3
[INFO] [stderr]    Compiling zvariant_utils v1.0.1
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]    Compiling bytemuck_derive v1.5.0
[INFO] [stderr]     Checking wayland-client v0.31.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.57
[INFO] [stderr]    Compiling enumflags2_derive v0.7.9
[INFO] [stderr]     Checking futures-lite v2.2.0
[INFO] [stderr]     Checking bytemuck v1.14.3
[INFO] [stderr]    Compiling polling v2.8.0
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]     Checking async-task v4.7.0
[INFO] [stderr]    Compiling rustix v0.37.27
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]     Checking fastrand v1.9.0
[INFO] [stderr]     Checking waker-fn v1.1.1
[INFO] [stderr]     Checking atomic-waker v1.1.2
[INFO] [stderr]     Checking piper v0.2.1
[INFO] [stderr]     Checking async-channel v2.2.0
[INFO] [stderr]     Checking futures-lite v1.13.0
[INFO] [stderr]    Compiling zvariant_derive v3.15.0
[INFO] [stderr]     Checking async-lock v2.8.0
[INFO] [stderr]     Checking block-buffer v0.10.4
[INFO] [stderr]     Checking crypto-common v0.1.6
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling async-fs v1.6.0
[INFO] [stderr]    Compiling async-io v1.13.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking linux-raw-sys v0.3.8
[INFO] [stderr]    Compiling async-trait v0.1.77
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/futures-lite-1.13.0/src/future.rs:469:27
[INFO] [stdout]     |
[INFO] [stdout] 469 |             let t1 = res1.map_err(|_| unreachable!()).unwrap();
[INFO] [stdout]     |                           ^^^^^^^ cannot infer type of the type parameter `F` declared on the method `map_err`
[INFO] [stdout]     |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]     |
[INFO] [stdout] 469 |             let t1 = res1.map_err::<F, _>(|_| unreachable!()).unwrap();
[INFO] [stdout]     |                                  ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking ttf-parser v0.20.0
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking digest v0.10.7
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `futures-lite` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e7a9271d321a676a0bb91bfee9062480a1a3cd453b2ac1058f7b841003c1e2a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7a9271d321a676a0bb91bfee9062480a1a3cd453b2ac1058f7b841003c1e2a6", kill_on_drop: false }`
[INFO] [stdout] e7a9271d321a676a0bb91bfee9062480a1a3cd453b2ac1058f7b841003c1e2a6