[INFO] cloning repository https://github.com/maboesanman/cozal
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/maboesanman/cozal" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaboesanman%2Fcozal", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaboesanman%2Fcozal'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5153488936ab633fefd45a08042007bb73630e8d
[INFO] testing maboesanman/cozal against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmaboesanman%2Fcozal" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/maboesanman/cozal on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/maboesanman/cozal
[INFO] finished tweaking git repo https://github.com/maboesanman/cozal
[INFO] tweaked toml for git repo https://github.com/maboesanman/cozal written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/maboesanman/cozal already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded futures-test v0.3.15
[INFO] [stderr]   Downloaded im-rc v15.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e1256db291972d41263fd15927c8eed214e4a422c5c64a2f301674a1cb14006
[INFO] running `Command { std: "docker" "start" "-a" "5e1256db291972d41263fd15927c8eed214e4a422c5c64a2f301674a1cb14006", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e1256db291972d41263fd15927c8eed214e4a422c5c64a2f301674a1cb14006", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e1256db291972d41263fd15927c8eed214e4a422c5c64a2f301674a1cb14006", kill_on_drop: false }`
[INFO] [stdout] 5e1256db291972d41263fd15927c8eed214e4a422c5c64a2f301674a1cb14006
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1f8258c7146db28172a7e039fef591768567bd6996161447fe41f8d1a9a4f531
[INFO] running `Command { std: "docker" "start" "-a" "1f8258c7146db28172a7e039fef591768567bd6996161447fe41f8d1a9a4f531", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling typenum v1.12.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling smallvec v1.7.0
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling rand_xoshiro v0.4.0
[INFO] [stderr]    Compiling im v15.0.0
[INFO] [stderr]    Compiling im-rc v15.0.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling bitmaps v2.1.0
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling sized-chunks v0.6.2
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling pin-project v1.0.7
[INFO] [stderr]    Compiling cozal v0.0.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(map_first_last)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:3:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | #![feature(generic_associated_types)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(once_cell)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | #![feature(map_try_insert)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(hash_raw_entry)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> src/lib.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | #![feature(entry_insert)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Poll`
[INFO] [stdout]  --> src/source/adapters/transpose_redux/caller_channel_status.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::task::{Poll, Waker};
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::Transpose`
[INFO] [stdout]  --> src/source/adapters/transpose_redux/caller_channel_status.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use super::Transpose;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `VacantExtEntry as BTreeMapVacantEntry`
[INFO] [stdout]   --> src/source/adapters/transpose_redux/caller_channel_status.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     VacantExtEntry as BTreeMapVacantEntry,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `VacantExtEntry as OptionVacantEntry`
[INFO] [stdout]   --> src/source/adapters/transpose_redux/caller_channel_status.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     VacantExtEntry as OptionVacantEntry,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `get_ext_entry as vecdeque_get_ext_entry`
[INFO] [stdout]   --> src/source/adapters/transpose_redux/caller_channel_status.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     get_ext_entry as vecdeque_get_ext_entry,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BTreeSet`, `HashSet`
[INFO] [stdout]  --> src/source/adapters/transpose_redux/channel_assignments.rs:1:44
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::collections::{hash_map, BTreeMap, BTreeSet, HashMap, HashSet};
[INFO] [stdout]   |                                            ^^^^^^^^           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::caller_channel_status::CallerChannelStatus`
[INFO] [stdout]  --> src/source/adapters/transpose_redux/channel_assignments.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use super::caller_channel_status::CallerChannelStatus;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::input_buffer::InputBuffer`
[INFO] [stdout]   --> src/source/adapters/transpose_redux/channel_assignments.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use super::input_buffer::InputBuffer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::output_buffer::OutputBuffer`
[INFO] [stdout]   --> src/source/adapters/transpose_redux/channel_assignments.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use super::output_buffer::OutputBuffer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StepWrapper`
[INFO] [stdout]   --> src/source/adapters/transpose_redux/channel_assignments.rs:12:20
[INFO] [stdout]    |
[INFO] [stdout] 12 | use super::steps::{StepWrapper, Steps};
[INFO] [stdout]    |                    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::source::adapters::transpose_redux::caller_channel_status::Free`
[INFO] [stdout]   --> src/source/adapters/transpose_redux/channel_assignments.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use crate::source::adapters::transpose_redux::caller_channel_status::Free;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `SourcePollInner`
[INFO] [stdout]   --> src/source/adapters/transpose_redux/channel_assignments.rs:16:34
[INFO] [stdout]    |
[INFO] [stdout] 16 | use crate::source::source_poll::{SourcePollInner, SourcePollOk};
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::source::traits::SourceContext`
[INFO] [stdout]   --> src/source/adapters/transpose_redux/channel_assignments.rs:17:5
[INFO] [stdout]    |
[INFO] [stdout] 17 | use crate::source::traits::SourceContext;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::util::replace_waker::ReplaceWaker`
[INFO] [stdout]   --> src/source/adapters/transpose_redux/channel_assignments.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 | use crate::util::replace_waker::ReplaceWaker;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::input_buffer::InputBuffer`
[INFO] [stdout]  --> src/source/adapters/transpose_redux/steps.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use super::input_buffer::InputBuffer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/source/adapters/transpose_redux/channel_assignments.rs:232:64
[INFO] [stdout]     |
[INFO] [stdout] 231 | ...                   source_channel: todo!(),
[INFO] [stdout]     |                                       ------- any code following this expression is unreachable
[INFO] [stdout] 232 | ...                   one_channel_waker: waker,
[INFO] [stdout]     |                                          ^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/source/adapters/transpose_redux/channel_assignments.rs:292:52
[INFO] [stdout]     |
[INFO] [stdout] 291 | ...                   source_channel: todo!(),
[INFO] [stdout]     |                                       ------- any code following this expression is unreachable
[INFO] [stdout] 292 | ...                   one_channel_waker: waker,
[INFO] [stdout]     |                                          ^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::slice::SliceIndex`
[INFO] [stdout]  --> src/source/adapters/transpose_redux/steps.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::slice::SliceIndex;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors; 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cozal` due to 7 previous errors; 18 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "1f8258c7146db28172a7e039fef591768567bd6996161447fe41f8d1a9a4f531", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f8258c7146db28172a7e039fef591768567bd6996161447fe41f8d1a9a4f531", kill_on_drop: false }`
[INFO] [stdout] 1f8258c7146db28172a7e039fef591768567bd6996161447fe41f8d1a9a4f531