[INFO] cloning repository https://github.com/yytian/bignum
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yytian/bignum" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyytian%2Fbignum", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyytian%2Fbignum'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 37c385fe34cf457179194f70f21eaf3fcb5da381
[INFO] checking yytian/bignum against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyytian%2Fbignum" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yytian/bignum on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yytian/bignum
[INFO] finished tweaking git repo https://github.com/yytian/bignum
[INFO] tweaked toml for git repo https://github.com/yytian/bignum written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/yytian/bignum 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded deque v0.3.1
[INFO] [stderr]   Downloaded num_cpus v1.1.0
[INFO] [stderr]   Downloaded quickcheck v0.4.1
[INFO] [stderr]   Downloaded rayon v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d33edc095fbdabc8d823298e6a003c1844c25e9d6b43b64fcc60b3a54f4bab54
[INFO] running `Command { std: "docker" "start" "-a" "d33edc095fbdabc8d823298e6a003c1844c25e9d6b43b64fcc60b3a54f4bab54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d33edc095fbdabc8d823298e6a003c1844c25e9d6b43b64fcc60b3a54f4bab54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d33edc095fbdabc8d823298e6a003c1844c25e9d6b43b64fcc60b3a54f4bab54", kill_on_drop: false }`
[INFO] [stdout] d33edc095fbdabc8d823298e6a003c1844c25e9d6b43b64fcc60b3a54f4bab54
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4d7239ff2ad80123db7c60d7dd52e99a9aeb60c239973caf328476f7c030a52
[INFO] running `Command { std: "docker" "start" "-a" "a4d7239ff2ad80123db7c60d7dd52e99a9aeb60c239973caf328476f7c030a52", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.16
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking log v0.3.6
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking rand v0.3.14
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking num_cpus v1.1.0
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking deque v0.3.1
[INFO] [stderr]     Checking rayon v0.5.0
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking bignum v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking quickcheck v0.4.1
[INFO] [stdout] warning: the `#[test]` attribute may only be used on a non-associated function
[INFO] [stdout]   --> tests/quickcheck.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 |   #[test]
[INFO] [stdout]    |   ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
[INFO] [stdout] 34 | / quickcheck! {
[INFO] [stdout] 35 | |     fn long_mult_same_as_karatsuba(
[INFO] [stdout] 36 | |         parts1: Vec<u32>,
[INFO] [stdout] 37 | |         parts2: Vec<u32>,
[INFO] [stdout] ...  |
[INFO] [stdout] 54 | |     }
[INFO] [stdout] 55 | | }
[INFO] [stdout]    | |_- expected a non-associated function, found an item macro invocation
[INFO] [stdout]    |
[INFO] [stdout] help: replace with conditional compilation to make the item only exist when tests are being run
[INFO] [stdout]    |
[INFO] [stdout] 33 | #[cfg(test)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.36s
[INFO] running `Command { std: "docker" "inspect" "a4d7239ff2ad80123db7c60d7dd52e99a9aeb60c239973caf328476f7c030a52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4d7239ff2ad80123db7c60d7dd52e99a9aeb60c239973caf328476f7c030a52", kill_on_drop: false }`
[INFO] [stdout] a4d7239ff2ad80123db7c60d7dd52e99a9aeb60c239973caf328476f7c030a52
[INFO] checking yytian/bignum against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyytian%2Fbignum" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/yytian/bignum on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/yytian/bignum
[INFO] finished tweaking git repo https://github.com/yytian/bignum
[INFO] tweaked toml for git repo https://github.com/yytian/bignum written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/yytian/bignum 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" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e077de60b117014b1e6aa27ebe6d5693b6b91a5f32a9fdb5ee632fbcc8ca9980
[INFO] running `Command { std: "docker" "start" "-a" "e077de60b117014b1e6aa27ebe6d5693b6b91a5f32a9fdb5ee632fbcc8ca9980", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e077de60b117014b1e6aa27ebe6d5693b6b91a5f32a9fdb5ee632fbcc8ca9980", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e077de60b117014b1e6aa27ebe6d5693b6b91a5f32a9fdb5ee632fbcc8ca9980", kill_on_drop: false }`
[INFO] [stdout] e077de60b117014b1e6aa27ebe6d5693b6b91a5f32a9fdb5ee632fbcc8ca9980
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e28fe12288f58d601e099c24f7905488f4d2f6df2d54978d21771b97f84697c8
[INFO] running `Command { std: "docker" "start" "-a" "e28fe12288f58d601e099c24f7905488f4d2f6df2d54978d21771b97f84697c8", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.16
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking log v0.3.6
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]     Checking rand v0.3.14
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking num_cpus v1.1.0
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking thread-id v2.0.0
[INFO] [stderr]     Checking thread_local v0.2.7
[INFO] [stderr]     Checking deque v0.3.1
[INFO] [stderr]     Checking regex v0.1.80
[INFO] [stderr]     Checking rayon v0.5.0
[INFO] [stderr]     Checking bignum v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking quickcheck v0.4.1
[INFO] [stdout] warning: the `#[test]` attribute may only be used on a non-associated function
[INFO] [stdout]   --> tests/quickcheck.rs:33:1
[INFO] [stdout]    |
[INFO] [stdout] 33 |   #[test]
[INFO] [stdout]    |   ^^^^^^^ the `#[test]` macro causes a function to be run as a test and has no effect on non-functions
[INFO] [stdout] 34 | / quickcheck! {
[INFO] [stdout] 35 | |     fn long_mult_same_as_karatsuba(
[INFO] [stdout] 36 | |         parts1: Vec<u32>,
[INFO] [stdout] 37 | |         parts2: Vec<u32>,
[INFO] [stdout] ...  |
[INFO] [stdout] 54 | |     }
[INFO] [stdout] 55 | | }
[INFO] [stdout]    | |_- expected a non-associated function, found an item macro invocation
[INFO] [stdout]    |
[INFO] [stdout] help: replace with conditional compilation to make the item only exist when tests are being run
[INFO] [stdout]    |
[INFO] [stdout] 33 | #[cfg(test)]
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.01s
[INFO] running `Command { std: "docker" "inspect" "e28fe12288f58d601e099c24f7905488f4d2f6df2d54978d21771b97f84697c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e28fe12288f58d601e099c24f7905488f4d2f6df2d54978d21771b97f84697c8", kill_on_drop: false }`
[INFO] [stdout] e28fe12288f58d601e099c24f7905488f4d2f6df2d54978d21771b97f84697c8