[INFO] cloning repository https://github.com/thogiti/rust-atomics-and-locks
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/thogiti/rust-atomics-and-locks" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthogiti%2Frust-atomics-and-locks", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthogiti%2Frust-atomics-and-locks'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ddc91f393ab3ea2c544d1737a75071bcd8456f27
[INFO] checking thogiti/rust-atomics-and-locks against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthogiti%2Frust-atomics-and-locks" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thogiti/rust-atomics-and-locks 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/thogiti/rust-atomics-and-locks
[INFO] finished tweaking git repo https://github.com/thogiti/rust-atomics-and-locks
[INFO] tweaked toml for git repo https://github.com/thogiti/rust-atomics-and-locks written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/thogiti/rust-atomics-and-locks 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-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 457a957768cce716dc6270dd21e9b0a693a071251d358aa46d241db938f803e5
[INFO] running `Command { std: "docker" "start" "-a" "457a957768cce716dc6270dd21e9b0a693a071251d358aa46d241db938f803e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "457a957768cce716dc6270dd21e9b0a693a071251d358aa46d241db938f803e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "457a957768cce716dc6270dd21e9b0a693a071251d358aa46d241db938f803e5", kill_on_drop: false }`
[INFO] [stdout] 457a957768cce716dc6270dd21e9b0a693a071251d358aa46d241db938f803e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] e50ecfe3b8be7630bb3df9fd98417bf4fc37ca25446c14d0f6b8eb4286d9ecaf
[INFO] running `Command { std: "docker" "start" "-a" "e50ecfe3b8be7630bb3df9fd98417bf4fc37ca25446c14d0f6b8eb4286d9ecaf", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-atomics-and-locks v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "e50ecfe3b8be7630bb3df9fd98417bf4fc37ca25446c14d0f6b8eb4286d9ecaf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e50ecfe3b8be7630bb3df9fd98417bf4fc37ca25446c14d0f6b8eb4286d9ecaf", kill_on_drop: false }`
[INFO] [stdout] e50ecfe3b8be7630bb3df9fd98417bf4fc37ca25446c14d0f6b8eb4286d9ecaf
[INFO] checking thogiti/rust-atomics-and-locks against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fthogiti%2Frust-atomics-and-locks" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/thogiti/rust-atomics-and-locks 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/thogiti/rust-atomics-and-locks
[INFO] finished tweaking git repo https://github.com/thogiti/rust-atomics-and-locks
[INFO] tweaked toml for git repo https://github.com/thogiti/rust-atomics-and-locks written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/thogiti/rust-atomics-and-locks 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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 4705e94e8a9d0cac9651d88903300bef7b7f356df1fb375f3c1eea9030d9f744
[INFO] running `Command { std: "docker" "start" "-a" "4705e94e8a9d0cac9651d88903300bef7b7f356df1fb375f3c1eea9030d9f744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4705e94e8a9d0cac9651d88903300bef7b7f356df1fb375f3c1eea9030d9f744", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4705e94e8a9d0cac9651d88903300bef7b7f356df1fb375f3c1eea9030d9f744", kill_on_drop: false }`
[INFO] [stdout] 4705e94e8a9d0cac9651d88903300bef7b7f356df1fb375f3c1eea9030d9f744
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b64854b3d69ed3d29a5119160ea42d88ed962ac30c68bcfa86b89f10a2183481
[INFO] running `Command { std: "docker" "start" "-a" "b64854b3d69ed3d29a5119160ea42d88ed962ac30c68bcfa86b89f10a2183481", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-atomics-and-locks v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> src/bin/12-condvar.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |         s.spawn(|| loop {
[INFO] [stdout]    |           ----- ^^
[INFO] [stdout]    |           |
[INFO] [stdout]    |           type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout]    = note: cannot satisfy `_: Send`
[INFO] [stdout] note: required by a bound in `Scope::<'scope, 'env>::spawn`
[INFO] [stdout]   --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/thread/scoped.rs:189:5
[INFO] [stdout] help: try giving this closure an explicit return type
[INFO] [stdout]    |
[INFO] [stdout] 12 ~         s.spawn(|| -> /* Type */ { loop {
[INFO] [stdout] 13 |             let mut q = queue.lock().unwrap();
[INFO] [stdout]  ...
[INFO] [stdout] 22 |             dbg!(item);
[INFO] [stdout] 23 ~         } });
[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] [stderr] error: could not compile `rust-atomics-and-locks` (bin "12-condvar" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0283]: type annotations needed for `ScopedJoinHandle<'_, T>`
[INFO] [stdout]   --> src/bin/11-thread-parking.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let t = s.spawn(|| loop {
[INFO] [stdout]    |             ^     ----- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout]    = note: cannot satisfy `_: Send`
[INFO] [stdout] note: required by a bound in `Scope::<'scope, 'env>::spawn`
[INFO] [stdout]   --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/thread/scoped.rs:189:5
[INFO] [stdout] help: consider giving `t` an explicit type, where the type for type parameter `T` is specified
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let t: ScopedJoinHandle<'_, T> = s.spawn(|| loop {
[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] [stderr] error: could not compile `rust-atomics-and-locks` (bin "11-thread-parking") due to 2 previous errors
[INFO] [stdout] error[E0283]: type annotations needed
[INFO] [stdout]   --> src/bin/12-condvar.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 |         s.spawn(|| loop {
[INFO] [stdout]    |           ----- ^^
[INFO] [stdout]    |           |
[INFO] [stdout]    |           type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout]    = note: cannot satisfy `_: Send`
[INFO] [stdout] note: required by a bound in `Scope::<'scope, 'env>::spawn`
[INFO] [stdout]   --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/thread/scoped.rs:189:5
[INFO] [stdout] help: try giving this closure an explicit return type
[INFO] [stdout]    |
[INFO] [stdout] 12 ~         s.spawn(|| -> /* Type */ { loop {
[INFO] [stdout] 13 |             let mut q = queue.lock().unwrap();
[INFO] [stdout]  ...
[INFO] [stdout] 22 |             dbg!(item);
[INFO] [stdout] 23 ~         } });
[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[E0283]: type annotations needed for `ScopedJoinHandle<'_, T>`
[INFO] [stdout]   --> src/bin/11-thread-parking.rs:13:13
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let t = s.spawn(|| loop {
[INFO] [stdout]    |             ^     ----- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout]    = note: cannot satisfy `_: Send`
[INFO] [stdout] note: required by a bound in `Scope::<'scope, 'env>::spawn`
[INFO] [stdout]   --> /rustc/3a4bc97f6385a3aa300a4fd689b44350e54fd676/library/std/src/thread/scoped.rs:189:5
[INFO] [stdout] help: consider giving `t` an explicit type, where the type for type parameter `T` is specified
[INFO] [stdout]    |
[INFO] [stdout] 13 |         let t: ScopedJoinHandle<'_, T> = s.spawn(|| loop {
[INFO] [stdout]    |              +++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust-atomics-and-locks` (bin "12-condvar") due to 2 previous errors
[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 `rust-atomics-and-locks` (bin "11-thread-parking" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "b64854b3d69ed3d29a5119160ea42d88ed962ac30c68bcfa86b89f10a2183481", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b64854b3d69ed3d29a5119160ea42d88ed962ac30c68bcfa86b89f10a2183481", kill_on_drop: false }`
[INFO] [stdout] b64854b3d69ed3d29a5119160ea42d88ed962ac30c68bcfa86b89f10a2183481