[INFO] fetching crate may_waiter 0.1.2...
[INFO] testing may_waiter-0.1.2 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate may_waiter 0.1.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate may_waiter 0.1.2 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate may_waiter 0.1.2
[INFO] finished tweaking crates.io crate may_waiter 0.1.2
[INFO] tweaked toml for crates.io crate may_waiter 0.1.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 606ee1a6afd40f90e32cd2012b9c113fa8dca8b2e98da92746b4142157bea368
[INFO] running `Command { std: "docker" "start" "-a" "606ee1a6afd40f90e32cd2012b9c113fa8dca8b2e98da92746b4142157bea368", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "606ee1a6afd40f90e32cd2012b9c113fa8dca8b2e98da92746b4142157bea368", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "606ee1a6afd40f90e32cd2012b9c113fa8dca8b2e98da92746b4142157bea368", kill_on_drop: false }`
[INFO] [stdout] 606ee1a6afd40f90e32cd2012b9c113fa8dca8b2e98da92746b4142157bea368
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 50f7b3d928bffa6e8e5bfd59deb180af9720f5bb2cc5ce44c987175a8eb5274f
[INFO] running `Command { std: "docker" "start" "-a" "50f7b3d928bffa6e8e5bfd59deb180af9720f5bb2cc5ce44c987175a8eb5274f", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustversion v1.0.5
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling libc v0.2.108
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling crossbeam-queue v0.3.2
[INFO] [stderr]    Compiling cc v1.0.72
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling smallvec v1.7.0
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling generator v0.7.0
[INFO] [stderr]    Compiling may_queue v0.1.8
[INFO] [stderr]    Compiling may v0.3.19
[INFO] [stderr]    Compiling crossbeam v0.8.1
[INFO] [stderr]    Compiling nix v0.20.2
[INFO] [stderr]    Compiling socket2 v0.4.2
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling may_waiter v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0277]: the trait bound `T: may::sync::atomic_option::Wrapped` is not satisfied
[INFO] [stdout]   --> src/lib.rs:16:10
[INFO] [stdout]    |
[INFO] [stdout] 16 |     rsp: AtomicOption<T>,
[INFO] [stdout]    |          ^^^^^^^^^^^^^^^ the trait `may::sync::atomic_option::Wrapped` is not implemented for `T`
[INFO] [stdout]    |
[INFO] [stdout] note: required by a bound in `AtomicOption`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/may-0.3.19/src/sync/atomic_option.rs:65:28
[INFO] [stdout]    |
[INFO] [stdout] 65 | pub struct AtomicOption<T: Wrapped> {
[INFO] [stdout]    |                            ^^^^^^^ required by this bound in `AtomicOption`
[INFO] [stdout] help: consider restricting type parameter `T`
[INFO] [stdout]    |
[INFO] [stdout] 14 | pub struct Waiter<T: may::sync::atomic_option::Wrapped> {
[INFO] [stdout]    |                    +++++++++++++++++++++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0277`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `may_waiter` due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "50f7b3d928bffa6e8e5bfd59deb180af9720f5bb2cc5ce44c987175a8eb5274f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50f7b3d928bffa6e8e5bfd59deb180af9720f5bb2cc5ce44c987175a8eb5274f", kill_on_drop: false }`
[INFO] [stdout] 50f7b3d928bffa6e8e5bfd59deb180af9720f5bb2cc5ce44c987175a8eb5274f