[INFO] fetching crate russell_lab 0.7.1...
[INFO] checking russell_lab-0.7.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate russell_lab 0.7.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate russell_lab 0.7.1 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 russell_lab 0.7.1
[INFO] finished tweaking crates.io crate russell_lab 0.7.1
[INFO] tweaked toml for crates.io crate russell_lab 0.7.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate russell_lab 0.7.1 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v1.0.80
[INFO] [stderr]   Downloaded bumpalo v3.7.1
[INFO] [stderr]   Downloaded rmp-serde v1.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] d72fa1b022f6e964b3ffbd6bd804550c724c89de201b6292db03ae261a90415b
[INFO] running `Command { std: "docker" "start" "-a" "d72fa1b022f6e964b3ffbd6bd804550c724c89de201b6292db03ae261a90415b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d72fa1b022f6e964b3ffbd6bd804550c724c89de201b6292db03ae261a90415b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d72fa1b022f6e964b3ffbd6bd804550c724c89de201b6292db03ae261a90415b", kill_on_drop: false }`
[INFO] [stdout] d72fa1b022f6e964b3ffbd6bd804550c724c89de201b6292db03ae261a90415b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] cb78d1fc2c8ad3c66b8e234863b7c8668505b40710f2e5f95ab178df26db04e2
[INFO] running `Command { std: "docker" "start" "-a" "cb78d1fc2c8ad3c66b8e234863b7c8668505b40710f2e5f95ab178df26db04e2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.80
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling serde_json v1.0.79
[INFO] [stderr]    Compiling rustix v0.38.13
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]     Checking clap_lex v0.5.1
[INFO] [stderr]     Checking itoa v1.0.1
[INFO] [stderr]     Checking plotters-backend v0.3.2
[INFO] [stderr]     Checking linux-raw-sys v0.4.7
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]     Checking ciborium-io v0.2.0
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking anstyle v1.0.3
[INFO] [stderr]     Checking plotters-svg v0.3.1
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]    Compiling cc v1.0.71
[INFO] [stderr]     Checking ciborium-ll v0.2.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking anes v0.1.6
[INFO] [stderr]    Compiling paste v1.0.8
[INFO] [stderr]     Checking once_cell v1.18.0
[INFO] [stderr]     Checking clap_builder v4.4.4
[INFO] [stderr]     Checking crossbeam-channel v0.5.1
[INFO] [stderr]     Checking crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling russell_lab v0.7.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking plotters v0.3.1
[INFO] [stderr]     Checking rmp v0.8.11
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking clap v4.4.4
[INFO] [stderr]     Checking ciborium v0.2.0
[INFO] [stderr]     Checking num-complex v0.4.2
[INFO] [stderr]     Checking rmp-serde v1.1.0
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stdout] warning: unused import: `crate::base::macros::*`
[INFO] [stdout]   --> src/base/mod.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub use crate::base::macros::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `cpx` is imported redundantly
[INFO] [stdout]   --> src/base/macros.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 14 | / macro_rules! cpx {
[INFO] [stdout] 15 | |     ($real:expr, $imag:expr) => {{
[INFO] [stdout] 16 | |         Complex64::new($real, $imag)
[INFO] [stdout] 17 | |     }};
[INFO] [stdout] 18 | | }
[INFO] [stdout]    | |_- the item `cpx` is already defined here
[INFO] [stdout] ...
[INFO] [stdout] 24 |       use crate::cpx;
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::base::macros::*`
[INFO] [stdout]   --> src/base/mod.rs:19:9
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub use crate::base::macros::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.15s
[INFO] running `Command { std: "docker" "inspect" "cb78d1fc2c8ad3c66b8e234863b7c8668505b40710f2e5f95ab178df26db04e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb78d1fc2c8ad3c66b8e234863b7c8668505b40710f2e5f95ab178df26db04e2", kill_on_drop: false }`
[INFO] [stdout] cb78d1fc2c8ad3c66b8e234863b7c8668505b40710f2e5f95ab178df26db04e2