[INFO] fetching crate un_algebra 0.9.0...
[INFO] checking un_algebra-0.9.0 against master#fc81ad22c453776de16acf9938976930cf8c9401 for pr-77325
[INFO] extracting crate un_algebra 0.9.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate un_algebra 0.9.0 on toolchain fc81ad22c453776de16acf9938976930cf8c9401
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate un_algebra 0.9.0
[INFO] finished tweaking crates.io crate un_algebra 0.9.0
[INFO] tweaked toml for crates.io crate un_algebra 0.9.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate un_algebra 0.9.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2a6fdce276197990d0882799eeb6b3de3b1aa41088c487b731d88005ff773977
[INFO] running `Command { std: "docker" "start" "-a" "2a6fdce276197990d0882799eeb6b3de3b1aa41088c487b731d88005ff773977", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2a6fdce276197990d0882799eeb6b3de3b1aa41088c487b731d88005ff773977", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a6fdce276197990d0882799eeb6b3de3b1aa41088c487b731d88005ff773977", kill_on_drop: false }`
[INFO] [stdout] 2a6fdce276197990d0882799eeb6b3de3b1aa41088c487b731d88005ff773977
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+fc81ad22c453776de16acf9938976930cf8c9401" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adce43b8e49afa84f94ee42f2548d8e023a4f10e3ae240bfe12cdd4e48bce801
[INFO] running `Command { std: "docker" "start" "-a" "adce43b8e49afa84f94ee42f2548d8e023a4f10e3ae240bfe12cdd4e48bce801", kill_on_drop: false }`
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking remove_dir_all v0.5.2
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking bit-vec v0.5.1
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking rand_jitter v0.1.4
[INFO] [stderr]     Checking rand_pcg v0.1.2
[INFO] [stderr]     Checking bit-set v0.5.1
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_chacha v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking c2-chacha v0.2.3
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.2
[INFO] [stderr]     Checking tempfile v3.1.0
[INFO] [stderr]     Checking rusty-fork v0.2.2
[INFO] [stderr]     Checking proptest v0.9.4
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]    Compiling proptest-derive v0.1.2
[INFO] [stderr]     Checking un_algebra v0.9.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `cx`
[INFO] [stdout]    --> examples/complex.rs:183:4
[INFO] [stdout]     |
[INFO] [stdout] 183 | fn cx() -> impl Strategy<Value = Complex> {
[INFO] [stdout]     |    ^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `r32`
[INFO] [stdout]    --> examples/rational.rs:196:4
[INFO] [stdout]     |
[INFO] [stdout] 196 | fn r32() -> impl Strategy<Value = Rational> {
[INFO] [stdout]     |    ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 24.24s
[INFO] running `Command { std: "docker" "inspect" "adce43b8e49afa84f94ee42f2548d8e023a4f10e3ae240bfe12cdd4e48bce801", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adce43b8e49afa84f94ee42f2548d8e023a4f10e3ae240bfe12cdd4e48bce801", kill_on_drop: false }`
[INFO] [stdout] adce43b8e49afa84f94ee42f2548d8e023a4f10e3ae240bfe12cdd4e48bce801