[INFO] cloning repository https://github.com/TheAlgorythm/frs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TheAlgorythm/frs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheAlgorythm%2Ffrs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheAlgorythm%2Ffrs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 080d7d5876a04b25ceaad24353303694c8230008
[INFO] checking TheAlgorythm/frs against try#7caa343c25a692951246ea2f0664520b9c3f46da for pr-95985
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheAlgorythm%2Ffrs" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TheAlgorythm/frs on toolchain 7caa343c25a692951246ea2f0664520b9c3f46da
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7caa343c25a692951246ea2f0664520b9c3f46da" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/TheAlgorythm/frs
[INFO] finished tweaking git repo https://github.com/TheAlgorythm/frs
[INFO] tweaked toml for git repo https://github.com/TheAlgorythm/frs written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/TheAlgorythm/frs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7caa343c25a692951246ea2f0664520b9c3f46da" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+7caa343c25a692951246ea2f0664520b9c3f46da" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e4d50b1221caf34b7cb328694d8854f87fe6f1e5947ed37f95ccf8b7c33ad4e
[INFO] running `Command { std: "docker" "start" "-a" "8e4d50b1221caf34b7cb328694d8854f87fe6f1e5947ed37f95ccf8b7c33ad4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e4d50b1221caf34b7cb328694d8854f87fe6f1e5947ed37f95ccf8b7c33ad4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e4d50b1221caf34b7cb328694d8854f87fe6f1e5947ed37f95ccf8b7c33ad4e", kill_on_drop: false }`
[INFO] [stdout] 8e4d50b1221caf34b7cb328694d8854f87fe6f1e5947ed37f95ccf8b7c33ad4e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+7caa343c25a692951246ea2f0664520b9c3f46da" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bd04fccf33398e30e177d0eff58e4dac8909caa7f0484026427616fc186c038b
[INFO] running `Command { std: "docker" "start" "-a" "bd04fccf33398e30e177d0eff58e4dac8909caa7f0484026427616fc186c038b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking futures-io v0.3.15
[INFO] [stderr]    Compiling crossbeam-utils v0.8.10
[INFO] [stderr]     Checking slab v0.4.3
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.7
[INFO] [stderr]     Checking cache-padded v1.1.1
[INFO] [stderr]     Checking parking v2.0.0
[INFO] [stderr]     Checking fastrand v1.4.1
[INFO] [stderr]     Checking event-listener v2.5.1
[INFO] [stderr]     Checking waker-fn v1.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.15
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling futures-channel v0.3.15
[INFO] [stderr]     Checking concurrent-queue v1.2.2
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking futures-sink v0.3.15
[INFO] [stderr]     Checking async-task v4.0.3
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]     Checking async-channel v1.6.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking async-mutex v1.4.0
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking async-lock v2.4.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking plotters-backend v0.3.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]     Checking cli-table v0.4.6
[INFO] [stderr]     Checking crossbeam-epoch v0.9.3
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]     Checking lock_api v0.4.4
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]     Checking futures-lite v1.11.3
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking plotters-svg v0.3.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking colored v2.0.0
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]     Checking bool_ext v0.5.1
[INFO] [stderr]     Checking human_format v1.0.3
[INFO] [stderr]     Checking plotters v0.3.0
[INFO] [stderr]     Checking itertools v0.10.0
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking regex v1.5.5
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking async-executor v1.4.1
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking csv v1.1.6
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]    Compiling ctor v0.1.20
[INFO] [stderr]    Compiling async-attributes v1.1.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling serial_test_derive v0.5.1
[INFO] [stderr]     Checking serial_test v0.5.1
[INFO] [stderr]     Checking polling v2.0.3
[INFO] [stderr]     Checking kv-log-macro v1.0.7
[INFO] [stderr]     Checking async-io v1.4.1
[INFO] [stderr]     Checking async-global-executor v2.0.2
[INFO] [stderr]     Checking async-std v1.9.0
[INFO] [stderr]     Checking thiserror v1.0.25
[INFO] [stderr]     Checking futures-executor v0.3.15
[INFO] [stderr]     Checking futures v0.3.15
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking frs v0.4.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking criterion v0.3.4
[INFO] [stdout] warning: function `collected_non_sleeping_double_recursive_stream` is never used
[INFO] [stdout]   --> src/utils/../../test-utils/select_map.rs:59:14
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub async fn collected_non_sleeping_double_recursive_stream(base: u32) -> Vec<u32> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `collected_non_sleeping_triple_recursive_stream` is never used
[INFO] [stdout]    --> src/utils/../../test-utils/select_map.rs:162:14
[INFO] [stdout]     |
[INFO] [stdout] 162 | pub async fn collected_non_sleeping_triple_recursive_stream(base: u32) -> Vec<u32> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `collected_triple_recursive_stream` is never used
[INFO] [stdout]    --> src/utils/../../test-utils/select_map.rs:193:14
[INFO] [stdout]     |
[INFO] [stdout] 193 | pub async fn collected_triple_recursive_stream(base: u32) -> Vec<u32> {
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 48s
[INFO] running `Command { std: "docker" "inspect" "bd04fccf33398e30e177d0eff58e4dac8909caa7f0484026427616fc186c038b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd04fccf33398e30e177d0eff58e4dac8909caa7f0484026427616fc186c038b", kill_on_drop: false }`
[INFO] [stdout] bd04fccf33398e30e177d0eff58e4dac8909caa7f0484026427616fc186c038b