[INFO] fetching crate observables 0.1.0...
[INFO] testing observables-0.1.0 against 1.83.0 for beta-1.84.0-4
[INFO] extracting crate observables 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate observables 0.1.0 on toolchain 1.83.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate observables 0.1.0
[INFO] finished tweaking crates.io crate observables 0.1.0
[INFO] tweaked toml for crates.io crate observables 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 31 packages to latest compatible versions
[INFO] [stderr]       Adding async-channel v1.9.0 (available: v2.3.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.83.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa1d0e1296c5dfa848e5a4ae6e876858232b7d5444c068265e3125d448951928
[INFO] running `Command { std: "docker" "start" "-a" "fa1d0e1296c5dfa848e5a4ae6e876858232b7d5444c068265e3125d448951928", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa1d0e1296c5dfa848e5a4ae6e876858232b7d5444c068265e3125d448951928", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa1d0e1296c5dfa848e5a4ae6e876858232b7d5444c068265e3125d448951928", kill_on_drop: false }`
[INFO] [stdout] fa1d0e1296c5dfa848e5a4ae6e876858232b7d5444c068265e3125d448951928
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 90d232676915b374386e2648dc2b17a6109c6b9d05185b4ae801f764c8681ce2
[INFO] running `Command { std: "docker" "start" "-a" "90d232676915b374386e2648dc2b17a6109c6b9d05185b4ae801f764c8681ce2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling libc v0.2.168
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling crossbeam-utils v0.8.20
[INFO] [stderr]    Compiling serde v1.0.216
[INFO] [stderr]    Compiling pin-project-lite v0.2.15
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling discard v1.0.4
[INFO] [stderr]    Compiling event-listener v2.5.3
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling waker-fn v1.2.0
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling slab v0.4.9
[INFO] [stderr]    Compiling concurrent-queue v2.5.0
[INFO] [stderr]    Compiling async-channel v1.9.0
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling uuid v1.11.0
[INFO] [stderr]    Compiling serde_derive v1.0.216
[INFO] [stderr]    Compiling pin-project-internal v1.1.7
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling gensym v0.1.1
[INFO] [stderr]    Compiling pin-project v1.1.7
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling futures-signals v0.3.34
[INFO] [stderr]    Compiling observables v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `.deref()` on a double reference, which returns `&T` instead of dereferencing the inner type
[INFO] [stdout]   --> src/lib.rs:41:45
[INFO] [stdout]    |
[INFO] [stdout] 41 |             ObservableBorrow::Borrow(x) => x.deref(),
[INFO] [stdout]    |                                             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.47s
[INFO] running `Command { std: "docker" "inspect" "90d232676915b374386e2648dc2b17a6109c6b9d05185b4ae801f764c8681ce2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "90d232676915b374386e2648dc2b17a6109c6b9d05185b4ae801f764c8681ce2", kill_on_drop: false }`
[INFO] [stdout] 90d232676915b374386e2648dc2b17a6109c6b9d05185b4ae801f764c8681ce2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 145733981f063618dd282efa278148cd53545c71fd5737d5664372e7e243b55b
[INFO] running `Command { std: "docker" "start" "-a" "145733981f063618dd282efa278148cd53545c71fd5737d5664372e7e243b55b", kill_on_drop: false }`
[INFO] [stdout] warning: using `.deref()` on a double reference, which returns `&T` instead of dereferencing the inner type
[INFO] [stdout]   --> src/lib.rs:41:45
[INFO] [stdout]    |
[INFO] [stdout] 41 |             ObservableBorrow::Borrow(x) => x.deref(),
[INFO] [stdout]    |                                             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling observables v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: using `.deref()` on a double reference, which returns `&T` instead of dereferencing the inner type
[INFO] [stdout]   --> src/lib.rs:41:45
[INFO] [stdout]    |
[INFO] [stdout] 41 |             ObservableBorrow::Borrow(x) => x.deref(),
[INFO] [stdout]    |                                             ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "145733981f063618dd282efa278148cd53545c71fd5737d5664372e7e243b55b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "145733981f063618dd282efa278148cd53545c71fd5737d5664372e7e243b55b", kill_on_drop: false }`
[INFO] [stdout] 145733981f063618dd282efa278148cd53545c71fd5737d5664372e7e243b55b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+1.83.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e4624c8be3201f03728a00fcb84a14526ccdd4220722225520652d8669811bcc
[INFO] running `Command { std: "docker" "start" "-a" "e4624c8be3201f03728a00fcb84a14526ccdd4220722225520652d8669811bcc", kill_on_drop: false }`
[INFO] [stderr] warning: using `.deref()` on a double reference, which returns `&T` instead of dereferencing the inner type
[INFO] [stderr]   --> src/lib.rs:41:45
[INFO] [stderr]    |
[INFO] [stderr] 41 |             ObservableBorrow::Borrow(x) => x.deref(),
[INFO] [stderr]    |                                             ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(suspicious_double_ref_op)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `observables` (lib) generated 1 warning
[INFO] [stderr] warning: `observables` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/observables-da325132a1780707)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests observables
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e4624c8be3201f03728a00fcb84a14526ccdd4220722225520652d8669811bcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4624c8be3201f03728a00fcb84a14526ccdd4220722225520652d8669811bcc", kill_on_drop: false }`
[INFO] [stdout] e4624c8be3201f03728a00fcb84a14526ccdd4220722225520652d8669811bcc