[INFO] fetching crate byteflow 0.2.1...
[INFO] checking byteflow-0.2.1 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate byteflow 0.2.1 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate byteflow 0.2.1
[INFO] finished tweaking crates.io crate byteflow 0.2.1
[INFO] tweaked toml for crates.io crate byteflow 0.2.1 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate byteflow 0.2.1 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 76 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.4.0 (available: v0.6.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 26c150262a13195b83e4ce1f81b58175a3f1439c153b7dfd5906fd7e992a17ee
[INFO] running `Command { std: "docker" "start" "-a" "26c150262a13195b83e4ce1f81b58175a3f1439c153b7dfd5906fd7e992a17ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "26c150262a13195b83e4ce1f81b58175a3f1439c153b7dfd5906fd7e992a17ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "26c150262a13195b83e4ce1f81b58175a3f1439c153b7dfd5906fd7e992a17ee", kill_on_drop: false }`
[INFO] [stdout] 26c150262a13195b83e4ce1f81b58175a3f1439c153b7dfd5906fd7e992a17ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a12f954489199cb08d4569c22f929e03216a6d050653f4e0e4640293face32a8
[INFO] running `Command { std: "docker" "start" "-a" "a12f954489199cb08d4569c22f929e03216a6d050653f4e0e4640293face32a8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling rayon-core v1.12.1
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]     Checking plotters-backend v0.3.7
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking half v2.6.0
[INFO] [stderr]     Checking ciborium-io v0.2.2
[INFO] [stderr]     Checking os_str_bytes v6.6.1
[INFO] [stderr]     Checking cast v0.3.0
[INFO] [stderr]     Checking textwrap v0.16.2
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking walkdir v2.5.0
[INFO] [stderr]     Checking plotters-svg v0.3.7
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking ciborium-ll v0.2.2
[INFO] [stderr]     Checking oorandom v11.1.5
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]     Checking byteflow v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `coverage_nightly`
[INFO] [stdout]  --> src/lib.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(coverage_nightly, feature(coverage_attribute))]
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage_nightly)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage_nightly)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking crossbeam-epoch v0.9.18
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking crossbeam-deque v0.8.6
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v3.2.25
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.4.0
[INFO] [stdout] error: couldn't read `benches`: No such file or directory (os error 2)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `byteflow` (bench "benchmarks") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unexpected `cfg` condition name: `coverage_nightly`
[INFO] [stdout]  --> src/lib.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![cfg_attr(coverage_nightly, feature(coverage_attribute))]
[INFO] [stdout]   |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(coverage_nightly)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(coverage_nightly)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a12f954489199cb08d4569c22f929e03216a6d050653f4e0e4640293face32a8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a12f954489199cb08d4569c22f929e03216a6d050653f4e0e4640293face32a8", kill_on_drop: false }`
[INFO] [stdout] a12f954489199cb08d4569c22f929e03216a6d050653f4e0e4640293face32a8