[INFO] cloning repository https://github.com/an-owl/disk-destoryer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/an-owl/disk-destoryer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fan-owl%2Fdisk-destoryer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fan-owl%2Fdisk-destoryer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dc77167a794859b36c8a12dc2e0830655f961647
[INFO] checking an-owl/disk-destoryer against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fan-owl%2Fdisk-destoryer" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/an-owl/disk-destoryer 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 git repo https://github.com/an-owl/disk-destoryer
[INFO] finished tweaking git repo https://github.com/an-owl/disk-destoryer
[INFO] tweaked toml for git repo https://github.com/an-owl/disk-destoryer written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/an-owl/disk-destoryer 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] d99b6ad61bbbbdcbe9c533c9f8690272c27dd2f6d260037ff54fefc69c291eaa
[INFO] running `Command { std: "docker" "start" "-a" "d99b6ad61bbbbdcbe9c533c9f8690272c27dd2f6d260037ff54fefc69c291eaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d99b6ad61bbbbdcbe9c533c9f8690272c27dd2f6d260037ff54fefc69c291eaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d99b6ad61bbbbdcbe9c533c9f8690272c27dd2f6d260037ff54fefc69c291eaa", kill_on_drop: false }`
[INFO] [stdout] d99b6ad61bbbbdcbe9c533c9f8690272c27dd2f6d260037ff54fefc69c291eaa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 8feab411a653c77c5c7bba4370c58a10b562ab76f75c2489fbbec656b0eba891
[INFO] running `Command { std: "docker" "start" "-a" "8feab411a653c77c5c7bba4370c58a10b562ab76f75c2489fbbec656b0eba891", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking path-clean v1.0.1
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking dirs-sys v0.4.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking dirs v5.0.1
[INFO] [stderr]     Checking signal-hook v0.3.17
[INFO] [stderr]     Checking shellexpand v3.1.0
[INFO] [stderr]     Checking disk-destroyer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `PathClean` is imported redundantly
[INFO] [stdout]   --> src/config.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 2  | use path_clean::PathClean;
[INFO] [stdout]    |     --------------------- the item `PathClean` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 29 |     use path_clean::PathClean;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `PathClean` is imported redundantly
[INFO] [stdout]   --> src/config.rs:29:9
[INFO] [stdout]    |
[INFO] [stdout] 2  | use path_clean::PathClean;
[INFO] [stdout]    |     --------------------- the item `PathClean` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 29 |     use path_clean::PathClean;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:456:17
[INFO] [stdout]     |
[INFO] [stdout] 456 |             let mut r = ch.remainder().to_vec();
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:456:17
[INFO] [stdout]     |
[INFO] [stdout] 456 |             let mut r = ch.remainder().to_vec();
[INFO] [stdout]     |                 ----^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings 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 0.73s
[INFO] running `Command { std: "docker" "inspect" "8feab411a653c77c5c7bba4370c58a10b562ab76f75c2489fbbec656b0eba891", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8feab411a653c77c5c7bba4370c58a10b562ab76f75c2489fbbec656b0eba891", kill_on_drop: false }`
[INFO] [stdout] 8feab411a653c77c5c7bba4370c58a10b562ab76f75c2489fbbec656b0eba891
[INFO] checking an-owl/disk-destoryer against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fan-owl%2Fdisk-destoryer" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/an-owl/disk-destoryer on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/an-owl/disk-destoryer
[INFO] finished tweaking git repo https://github.com/an-owl/disk-destoryer
[INFO] tweaked toml for git repo https://github.com/an-owl/disk-destoryer written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/an-owl/disk-destoryer 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3cf230c0ec60f2344f27eceed04dcb15eef19bd8b5737a1d53484944b9918193
[INFO] running `Command { std: "docker" "start" "-a" "3cf230c0ec60f2344f27eceed04dcb15eef19bd8b5737a1d53484944b9918193", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cf230c0ec60f2344f27eceed04dcb15eef19bd8b5737a1d53484944b9918193", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cf230c0ec60f2344f27eceed04dcb15eef19bd8b5737a1d53484944b9918193", kill_on_drop: false }`
[INFO] [stdout] 3cf230c0ec60f2344f27eceed04dcb15eef19bd8b5737a1d53484944b9918193
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e47968ca6ba42e778a94eaba62298ec41f11e94debeeef5e0847d2c9a2fbd78d
[INFO] running `Command { std: "docker" "start" "-a" "e47968ca6ba42e778a94eaba62298ec41f11e94debeeef5e0847d2c9a2fbd78d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]     Checking option-ext v0.2.0
[INFO] [stderr]    Compiling signal-hook v0.3.17
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]     Checking path-clean v1.0.1
[INFO] [stderr]     Checking getopts v0.2.21
[INFO] [stderr]     Checking dirs-sys v0.4.1
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/signal-hook-registry-1.4.1/src/half_lock.rs:145:13
[INFO] [stdout]     |
[INFO] [stdout] 145 |             unsafe { libc::abort() };
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking dirs v5.0.1
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `signal-hook-registry` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e47968ca6ba42e778a94eaba62298ec41f11e94debeeef5e0847d2c9a2fbd78d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e47968ca6ba42e778a94eaba62298ec41f11e94debeeef5e0847d2c9a2fbd78d", kill_on_drop: false }`
[INFO] [stdout] e47968ca6ba42e778a94eaba62298ec41f11e94debeeef5e0847d2c9a2fbd78d