[INFO] fetching crate try-next 0.4.0...
[INFO] testing try-next-0.4.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate try-next 0.4.0 into /workspace/builds/worker-5-tc1/source
[INFO] started tweaking crates.io crate try-next 0.4.0
[INFO] finished tweaking crates.io crate try-next 0.4.0
[INFO] tweaked toml for crates.io crate try-next 0.4.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate try-next 0.4.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate try-next 0.4.0 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a4d60f7d711fd22b418cd1308c98944e614bd72d13614ffe53155bb7e362aa0b
[INFO] running `Command { std: "docker" "start" "-a" "a4d60f7d711fd22b418cd1308c98944e614bd72d13614ffe53155bb7e362aa0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a4d60f7d711fd22b418cd1308c98944e614bd72d13614ffe53155bb7e362aa0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4d60f7d711fd22b418cd1308c98944e614bd72d13614ffe53155bb7e362aa0b", kill_on_drop: false }`
[INFO] [stdout] a4d60f7d711fd22b418cd1308c98944e614bd72d13614ffe53155bb7e362aa0b
[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=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" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9037dc866b4bc71bbb82d0f9c8683a6cc715a49a3a92f4725f61a252f43ab6bc
[INFO] running `Command { std: "docker" "start" "-a" "9037dc866b4bc71bbb82d0f9c8683a6cc715a49a3a92f4725f61a252f43ab6bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling try-next v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]    --> src/lib.rs:220:18
[INFO] [stdout]     |
[INFO] [stdout] 220 | use alloc::vec::{self, Vec};
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "9037dc866b4bc71bbb82d0f9c8683a6cc715a49a3a92f4725f61a252f43ab6bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9037dc866b4bc71bbb82d0f9c8683a6cc715a49a3a92f4725f61a252f43ab6bc", kill_on_drop: false }`
[INFO] [stdout] 9037dc866b4bc71bbb82d0f9c8683a6cc715a49a3a92f4725f61a252f43ab6bc
[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=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" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e7fd28e8a1123e6995b9e8a6bdb9991b38e146d6fde1ed095fd1439a30913e11
[INFO] running `Command { std: "docker" "start" "-a" "e7fd28e8a1123e6995b9e8a6bdb9991b38e146d6fde1ed095fd1439a30913e11", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]    --> src/lib.rs:220:18
[INFO] [stdout]     |
[INFO] [stdout] 220 | use alloc::vec::{self, Vec};
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling try-next v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]    --> src/lib.rs:220:18
[INFO] [stdout]     |
[INFO] [stdout] 220 | use alloc::vec::{self, Vec};
[INFO] [stdout]     |                  ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "e7fd28e8a1123e6995b9e8a6bdb9991b38e146d6fde1ed095fd1439a30913e11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7fd28e8a1123e6995b9e8a6bdb9991b38e146d6fde1ed095fd1439a30913e11", kill_on_drop: false }`
[INFO] [stdout] e7fd28e8a1123e6995b9e8a6bdb9991b38e146d6fde1ed095fd1439a30913e11
[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=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" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 04f458461f81f1a3653f29e2770160ece7b7064e55eefe47fdf4742ca3fb0c40
[INFO] running `Command { std: "docker" "start" "-a" "04f458461f81f1a3653f29e2770160ece7b7064e55eefe47fdf4742ca3fb0c40", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `self`
[INFO] [stderr]    --> src/lib.rs:220:18
[INFO] [stderr]     |
[INFO] [stderr] 220 | use alloc::vec::{self, Vec};
[INFO] [stderr]     |                  ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `try-next` (lib) generated 1 warning (run `cargo fix --lib -p try-next` to apply 1 suggestion)
[INFO] [stderr] warning: `try-next` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/try_next-a16df578f46b1615)
[INFO] [stdout] 
[INFO] [stdout] running 18 tests
[INFO] [stdout] test io::tests::try_next_on_empty_input_is_none ... ok
[INFO] [stdout] test io::tests::try_next_propagates_errors ... ok
[INFO] [stdout] test io::tests::try_next_with_context_on_empty_input_is_none ... ok
[INFO] [stdout] test io::tests::try_next_with_context_propagates_errors ... ok
[INFO] [stdout] test io::tests::try_next_with_context_reads_bytes_and_reaches_eof ... ok
[INFO] [stdout] test tests::context_counter_yields_and_updates_context ... ok
[INFO] [stdout] test tests::drain_collects_all_items ... ok
[INFO] [stdout] test tests::counter_yields_then_none ... ok
[INFO] [stdout] test io::tests::try_next_reads_each_byte_then_none ... ok
[INFO] [stdout] test tests::error_propagates ... ok
[INFO] [stdout] test tests::custom_stats_are_reported ... ok
[INFO] [stdout] test tests::iter_input_is_fused_after_exhaustion ... ok
[INFO] [stdout] test tests::iter_input_over_string_bytes ... ok
[INFO] [stdout] test tests::iter_input_try_next_works_without_context ... ok
[INFO] [stdout] test tests::iter_input_with_empty_range_returns_none ... ok
[INFO] [stdout] test tests::iter_input_try_collect_collects_all ... ok
[INFO] [stdout] test tests::iter_input_yields_all_items_from_array ... ok
[INFO] [stdout] test tests::stats_default_is_unit ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 18 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests try_next
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test src/lib.rs - (line 113) ... ok
[INFO] [stdout] test src/lib.rs - (line 38) ... ok
[INFO] [stdout] test src/io.rs - io (line 19) ... ok
[INFO] [stdout] test src/lib.rs - (line 67) ... ok
[INFO] [stdout] test src/lib.rs - (line 164) ... ok
[INFO] [stdout] test src/io.rs - io::BufReader<R> (line 89) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "04f458461f81f1a3653f29e2770160ece7b7064e55eefe47fdf4742ca3fb0c40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "04f458461f81f1a3653f29e2770160ece7b7064e55eefe47fdf4742ca3fb0c40", kill_on_drop: false }`
[INFO] [stdout] 04f458461f81f1a3653f29e2770160ece7b7064e55eefe47fdf4742ca3fb0c40