[INFO] fetching crate nale 0.1.1...
[INFO] checking nale-0.1.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate nale 0.1.1 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate nale 0.1.1 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate nale 0.1.1
[INFO] finished tweaking crates.io crate nale 0.1.1
[INFO] tweaked toml for crates.io crate nale 0.1.1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 30 packages
[INFO] [stderr]       Adding siphasher v0.3.11 (latest: v1.0.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded buffer-redux v1.0.1
[INFO] [stderr]   Downloaded seq_io v0.3.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f9cc0750a85f668ab1e10ba82d5330c526f91b694a702f9a5423a46a08f61858
[INFO] running `Command { std: "docker" "start" "-a" "f9cc0750a85f668ab1e10ba82d5330c526f91b694a702f9a5423a46a08f61858", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9cc0750a85f668ab1e10ba82d5330c526f91b694a702f9a5423a46a08f61858", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9cc0750a85f668ab1e10ba82d5330c526f91b694a702f9a5423a46a08f61858", kill_on_drop: false }`
[INFO] [stdout] f9cc0750a85f668ab1e10ba82d5330c526f91b694a702f9a5423a46a08f61858
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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=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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d0f18282e2e5ef95c19039a3bfb939c6c291bbfbca48e4e3573fa31b512223c
[INFO] running `Command { std: "docker" "start" "-a" "9d0f18282e2e5ef95c19039a3bfb939c6c291bbfbca48e4e3573fa31b512223c", kill_on_drop: false }`
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]     Checking regex-syntax v0.8.3
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking scoped_threadpool v0.1.9
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling crossbeam-utils v0.8.19
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]    Compiling anyhow v1.0.81
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling phf_shared v0.11.2
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]     Checking buffer-redux v1.0.1
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]    Compiling phf_macros v0.11.2
[INFO] [stderr]     Checking phf v0.11.2
[INFO] [stderr]     Checking regex-automata v0.4.6
[INFO] [stderr]     Checking regex v1.10.4
[INFO] [stderr]     Checking seq_io v0.3.2
[INFO] [stderr]     Checking nale v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `UnknownHeaderFlagError` is never constructed
[INFO] [stdout]   --> src/structs/hmm.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 | struct UnknownHeaderFlagError;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `avg` is never used
[INFO] [stdout]  --> src/util.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait Average<T> {
[INFO] [stdout]   |           ------- method in this trait
[INFO] [stdout] 4 |     fn avg(&self) -> T;
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `UnknownHeaderFlagError` is never constructed
[INFO] [stdout]   --> src/structs/hmm.rs:75:8
[INFO] [stdout]    |
[INFO] [stdout] 75 | struct UnknownHeaderFlagError;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `avg` is never used
[INFO] [stdout]  --> src/util.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub trait Average<T> {
[INFO] [stdout]   |           ------- method in this trait
[INFO] [stdout] 4 |     fn avg(&self) -> T;
[INFO] [stdout]   |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 5.24s
[INFO] running `Command { std: "docker" "inspect" "9d0f18282e2e5ef95c19039a3bfb939c6c291bbfbca48e4e3573fa31b512223c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d0f18282e2e5ef95c19039a3bfb939c6c291bbfbca48e4e3573fa31b512223c", kill_on_drop: false }`
[INFO] [stdout] 9d0f18282e2e5ef95c19039a3bfb939c6c291bbfbca48e4e3573fa31b512223c