[INFO] cloning repository https://github.com/ErikNatanael/drop_unsafe_problem
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ErikNatanael/drop_unsafe_problem" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErikNatanael%2Fdrop_unsafe_problem", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErikNatanael%2Fdrop_unsafe_problem'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5662fdb98b296bc8342e063c026404937978c1eb
[INFO] checking ErikNatanael/drop_unsafe_problem against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErikNatanael%2Fdrop_unsafe_problem" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ErikNatanael/drop_unsafe_problem 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/ErikNatanael/drop_unsafe_problem
[INFO] finished tweaking git repo https://github.com/ErikNatanael/drop_unsafe_problem
[INFO] tweaked toml for git repo https://github.com/ErikNatanael/drop_unsafe_problem written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ErikNatanael/drop_unsafe_problem 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-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] 2b17beb58b7902879022b3b047f5fe86c38d3a225d54300e5994ce3ac46a912a
[INFO] running `Command { std: "docker" "start" "-a" "2b17beb58b7902879022b3b047f5fe86c38d3a225d54300e5994ce3ac46a912a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b17beb58b7902879022b3b047f5fe86c38d3a225d54300e5994ce3ac46a912a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b17beb58b7902879022b3b047f5fe86c38d3a225d54300e5994ce3ac46a912a", kill_on_drop: false }`
[INFO] [stdout] 2b17beb58b7902879022b3b047f5fe86c38d3a225d54300e5994ce3ac46a912a
[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] c577e187cf64c979fde53f2c5b6313085b6943cfa69c4ee3dc47d11f9076a0ea
[INFO] running `Command { std: "docker" "start" "-a" "c577e187cf64c979fde53f2c5b6313085b6943cfa69c4ee3dc47d11f9076a0ea", kill_on_drop: false }`
[INFO] [stderr]     Checking drop_problem v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] running `Command { std: "docker" "inspect" "c577e187cf64c979fde53f2c5b6313085b6943cfa69c4ee3dc47d11f9076a0ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c577e187cf64c979fde53f2c5b6313085b6943cfa69c4ee3dc47d11f9076a0ea", kill_on_drop: false }`
[INFO] [stdout] c577e187cf64c979fde53f2c5b6313085b6943cfa69c4ee3dc47d11f9076a0ea
[INFO] checking ErikNatanael/drop_unsafe_problem against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FErikNatanael%2Fdrop_unsafe_problem" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ErikNatanael/drop_unsafe_problem 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/ErikNatanael/drop_unsafe_problem
[INFO] finished tweaking git repo https://github.com/ErikNatanael/drop_unsafe_problem
[INFO] tweaked toml for git repo https://github.com/ErikNatanael/drop_unsafe_problem written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ErikNatanael/drop_unsafe_problem 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 1b33e40e42732ba6d0132ae0d5db0fb12b48d65d401f7a2906eefb4bbb5bac5f
[INFO] running `Command { std: "docker" "start" "-a" "1b33e40e42732ba6d0132ae0d5db0fb12b48d65d401f7a2906eefb4bbb5bac5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b33e40e42732ba6d0132ae0d5db0fb12b48d65d401f7a2906eefb4bbb5bac5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b33e40e42732ba6d0132ae0d5db0fb12b48d65d401f7a2906eefb4bbb5bac5f", kill_on_drop: false }`
[INFO] [stdout] 1b33e40e42732ba6d0132ae0d5db0fb12b48d65d401f7a2906eefb4bbb5bac5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 0ce57751bdab5840da521b51c944c40d9832a4fe4f29b5733f3b5bb0aa21793e
[INFO] running `Command { std: "docker" "start" "-a" "0ce57751bdab5840da521b51c944c40d9832a4fe4f29b5733f3b5bb0aa21793e", kill_on_drop: false }`
[INFO] [stderr]     Checking drop_problem v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> src/main.rs:50:24
[INFO] [stdout]    |
[INFO] [stdout] 50 |     std::thread::spawn(move || loop {
[INFO] [stdout]    |                        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: cannot satisfy `_: Send`
[INFO] [stdout] note: required by a bound in `spawn`
[INFO] [stdout]   --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/thread/mod.rs:672:1
[INFO] [stdout] help: try giving this closure an explicit return type
[INFO] [stdout]    |
[INFO] [stdout] 50 ~     std::thread::spawn(move || -> /* Type */ { loop {
[INFO] [stdout] 51 |         // The "audio thread". In reality, output would be piped to the sound card here
[INFO] [stdout]  ...
[INFO] [stdout] 54 |         std::thread::sleep(std::time::Duration::from_millis(100));
[INFO] [stdout] 55 ~     } });
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> src/main.rs:50:24
[INFO] [stdout]    |
[INFO] [stdout] 50 |     std::thread::spawn(move || loop {
[INFO] [stdout]    |                        ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: cannot satisfy `_: Send`
[INFO] [stdout] note: required by a bound in `spawn`
[INFO] [stdout]   --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/thread/mod.rs:672:1
[INFO] [stdout] help: try giving this closure an explicit return type
[INFO] [stdout]    |
[INFO] [stdout] 50 ~     std::thread::spawn(move || -> /* Type */ { loop {
[INFO] [stdout] 51 |         // The "audio thread". In reality, output would be piped to the sound card here
[INFO] [stdout]  ...
[INFO] [stdout] 54 |         std::thread::sleep(std::time::Duration::from_millis(100));
[INFO] [stdout] 55 ~     } });
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0283`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `drop_problem` (bin "drop_problem") due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `drop_problem` (bin "drop_problem" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "0ce57751bdab5840da521b51c944c40d9832a4fe4f29b5733f3b5bb0aa21793e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ce57751bdab5840da521b51c944c40d9832a4fe4f29b5733f3b5bb0aa21793e", kill_on_drop: false }`
[INFO] [stdout] 0ce57751bdab5840da521b51c944c40d9832a4fe4f29b5733f3b5bb0aa21793e