[INFO] fetching crate crabcheck 0.1.0...
[INFO] testing crabcheck-0.1.0 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate crabcheck 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate crabcheck 0.1.0
[INFO] finished tweaking crates.io crate crabcheck 0.1.0
[INFO] tweaked toml for crates.io crate crabcheck 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate crabcheck 0.1.0 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate crabcheck 0.1.0 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2bc4116f6e8b7548526ad7fe6a52bbf5ad863d62329559e037605b58038dd2fe
[INFO] running `Command { std: "docker" "start" "-a" "2bc4116f6e8b7548526ad7fe6a52bbf5ad863d62329559e037605b58038dd2fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2bc4116f6e8b7548526ad7fe6a52bbf5ad863d62329559e037605b58038dd2fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2bc4116f6e8b7548526ad7fe6a52bbf5ad863d62329559e037605b58038dd2fe", kill_on_drop: false }`
[INFO] [stdout] 2bc4116f6e8b7548526ad7fe6a52bbf5ad863d62329559e037605b58038dd2fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f62a18b11cfb8ae84a85ec2cd6fcd747139ca06ea353d16f3f2a72cdb4dbabf4
[INFO] running `Command { std: "docker" "start" "-a" "f62a18b11cfb8ae84a85ec2cd6fcd747139ca06ea353d16f3f2a72cdb4dbabf4", kill_on_drop: false }`
[INFO] [stderr]    Compiling cpu-time v1.0.0
[INFO] [stderr]    Compiling getrandom v0.2.12
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling crabcheck v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `quickcheck` is never used
[INFO] [stdout]   --> src/quickcheck.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn quickcheck<T: Arbitrary>(f: fn(&T) -> bool) -> RunResult<T> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.14s
[INFO] running `Command { std: "docker" "inspect" "f62a18b11cfb8ae84a85ec2cd6fcd747139ca06ea353d16f3f2a72cdb4dbabf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f62a18b11cfb8ae84a85ec2cd6fcd747139ca06ea353d16f3f2a72cdb4dbabf4", kill_on_drop: false }`
[INFO] [stdout] f62a18b11cfb8ae84a85ec2cd6fcd747139ca06ea353d16f3f2a72cdb4dbabf4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce2661b01c0e4f5f11648710507e23a6bedf3c85f136a12da2234ff9ed80b0a1
[INFO] running `Command { std: "docker" "start" "-a" "ce2661b01c0e4f5f11648710507e23a6bedf3c85f136a12da2234ff9ed80b0a1", kill_on_drop: false }`
[INFO] [stdout] warning: function `quickcheck` is never used
[INFO] [stdout]   --> src/quickcheck.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn quickcheck<T: Arbitrary>(f: fn(&T) -> bool) -> RunResult<T> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling crabcheck v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `quickcheck` is never used
[INFO] [stdout]   --> src/quickcheck.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn quickcheck<T: Arbitrary>(f: fn(&T) -> bool) -> RunResult<T> {
[INFO] [stdout]    |    ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "ce2661b01c0e4f5f11648710507e23a6bedf3c85f136a12da2234ff9ed80b0a1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce2661b01c0e4f5f11648710507e23a6bedf3c85f136a12da2234ff9ed80b0a1", kill_on_drop: false }`
[INFO] [stdout] ce2661b01c0e4f5f11648710507e23a6bedf3c85f136a12da2234ff9ed80b0a1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 30f43f59cd9aafe473d5040806046099b8e07e335af275a11b7072c752f90373
[INFO] running `Command { std: "docker" "start" "-a" "30f43f59cd9aafe473d5040806046099b8e07e335af275a11b7072c752f90373", kill_on_drop: false }`
[INFO] [stderr] warning: function `quickcheck` is never used
[INFO] [stderr]   --> src/quickcheck.rs:79:4
[INFO] [stderr]    |
[INFO] [stderr] 79 | fn quickcheck<T: Arbitrary>(f: fn(&T) -> bool) -> RunResult<T> {
[INFO] [stderr]    |    ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `crabcheck` (lib) generated 1 warning
[INFO] [stderr] warning: `crabcheck` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/crabcheck-ad2af1e81113be9c)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/crabcheck-18db75da0009c6fc)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests crabcheck
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "30f43f59cd9aafe473d5040806046099b8e07e335af275a11b7072c752f90373", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30f43f59cd9aafe473d5040806046099b8e07e335af275a11b7072c752f90373", kill_on_drop: false }`
[INFO] [stdout] 30f43f59cd9aafe473d5040806046099b8e07e335af275a11b7072c752f90373