[INFO] fetching crate reusable-box-future 0.2.0...
[INFO] testing reusable-box-future-0.2.0 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate reusable-box-future 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate reusable-box-future 0.2.0 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate reusable-box-future 0.2.0
[INFO] finished tweaking crates.io crate reusable-box-future 0.2.0
[INFO] tweaked toml for crates.io crate reusable-box-future 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cff114d7b922b8c8fb47ec1c7e60f1435e287f1b79c497ac24365e17dc1d06ef
[INFO] running `Command { std: "docker" "start" "-a" "cff114d7b922b8c8fb47ec1c7e60f1435e287f1b79c497ac24365e17dc1d06ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cff114d7b922b8c8fb47ec1c7e60f1435e287f1b79c497ac24365e17dc1d06ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cff114d7b922b8c8fb47ec1c7e60f1435e287f1b79c497ac24365e17dc1d06ef", kill_on_drop: false }`
[INFO] [stdout] cff114d7b922b8c8fb47ec1c7e60f1435e287f1b79c497ac24365e17dc1d06ef
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 54dc38a0a75566f1eddfe7540adc9130d65f3eb31cf3c6d04996aadd0c79ac03
[INFO] running `Command { std: "docker" "start" "-a" "54dc38a0a75566f1eddfe7540adc9130d65f3eb31cf3c6d04996aadd0c79ac03", kill_on_drop: false }`
[INFO] [stderr]    Compiling reusable-box-future v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.12s
[INFO] running `Command { std: "docker" "inspect" "54dc38a0a75566f1eddfe7540adc9130d65f3eb31cf3c6d04996aadd0c79ac03", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54dc38a0a75566f1eddfe7540adc9130d65f3eb31cf3c6d04996aadd0c79ac03", kill_on_drop: false }`
[INFO] [stdout] 54dc38a0a75566f1eddfe7540adc9130d65f3eb31cf3c6d04996aadd0c79ac03
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 783358a5b5a8c5a409cb1243b94304380aade3946df4d7816b38bb45d049a2a7
[INFO] running `Command { std: "docker" "start" "-a" "783358a5b5a8c5a409cb1243b94304380aade3946df4d7816b38bb45d049a2a7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling futures-task v0.3.15
[INFO] [stderr]    Compiling futures-core v0.3.15
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling futures-util v0.3.15
[INFO] [stderr]    Compiling futures-executor v0.3.15
[INFO] [stderr]    Compiling reusable-box-future v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/box_future.rs:292:28
[INFO] [stdout]     |
[INFO] [stdout] 292 |                     panic!(1u32);
[INFO] [stdout]     |                            ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 292 |                     panic!("{}", 1u32);
[INFO] [stdout]     |                            ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 292 |                     std::panic::panic_any(1u32);
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/box_future.rs:326:37
[INFO] [stdout]     |
[INFO] [stdout] 326 |                     Ok(_) => panic!(2u32),
[INFO] [stdout]     |                                     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 326 |                     Ok(_) => panic!("{}", 2u32),
[INFO] [stdout]     |                                     ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 326 |                     Ok(_) => std::panic::panic_any(2u32),
[INFO] [stdout]     |                              ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/box_future.rs:327:38
[INFO] [stdout]     |
[INFO] [stdout] 327 |                     Err(_) => panic!(3u32),
[INFO] [stdout]     |                                      ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this is no longer accepted in Rust 2021
[INFO] [stdout] help: add a "{}" format string to Display the message
[INFO] [stdout]     |
[INFO] [stdout] 327 |                     Err(_) => panic!("{}", 3u32),
[INFO] [stdout]     |                                      ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]     |
[INFO] [stdout] 327 |                     Err(_) => std::panic::panic_any(3u32),
[INFO] [stdout]     |                               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.93s
[INFO] running `Command { std: "docker" "inspect" "783358a5b5a8c5a409cb1243b94304380aade3946df4d7816b38bb45d049a2a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "783358a5b5a8c5a409cb1243b94304380aade3946df4d7816b38bb45d049a2a7", kill_on_drop: false }`
[INFO] [stdout] 783358a5b5a8c5a409cb1243b94304380aade3946df4d7816b38bb45d049a2a7
[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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 31cde6f05d6848590af85c4399de92a59b5ee730b91a6f592da7ad46f3e4b82e
[INFO] running `Command { std: "docker" "start" "-a" "31cde6f05d6848590af85c4399de92a59b5ee730b91a6f592da7ad46f3e4b82e", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stdout] running 4 tests
[INFO] [stderr]    --> src/box_future.rs:292:28
[INFO] [stderr]     |
[INFO] [stderr] 292 |                     panic!(1u32);
[INFO] [stderr]     |                            ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_fmt_panic)]` on by default
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 292 |                     panic!("{}", 1u32);
[INFO] [stderr]     |                            ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 292 |                     std::panic::panic_any(1u32);
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/box_future.rs:326:37
[INFO] [stderr]     |
[INFO] [stderr] 326 |                     Ok(_) => panic!(2u32),
[INFO] [stderr]     |                                     ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 326 |                     Ok(_) => panic!("{}", 2u32),
[INFO] [stderr]     |                                     ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 326 |                     Ok(_) => std::panic::panic_any(2u32),
[INFO] [stderr]     |                              ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: panic message is not a string literal
[INFO] [stderr]    --> src/box_future.rs:327:38
[INFO] [stderr]     |
[INFO] [stderr] 327 |                     Err(_) => panic!(3u32),
[INFO] [stderr]     |                                      ^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this is no longer accepted in Rust 2021
[INFO] [stderr] help: add a "{}" format string to Display the message
[INFO] [stderr]     |
[INFO] [stderr] 327 |                     Err(_) => panic!("{}", 3u32),
[INFO] [stderr]     |                                      ^^^^^
[INFO] [stderr] help: or use std::panic::panic_any instead
[INFO] [stderr]     |
[INFO] [stderr] 327 |                     Err(_) => std::panic::panic_any(3u32),
[INFO] [stderr]     |                               ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/reusable_box_future-3a3b88885cff7ca5)
[INFO] [stdout] test box_future::tests::static_assertion ... ok
[INFO] [stdout] test box_future::tests::alloc ... ok
[INFO] [stdout] test local_box_future::tests::static_assertion ... ok
[INFO] [stderr]    Doc-tests reusable-box-future
[INFO] [stdout] test box_future::tests::panicking_drop ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[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" "31cde6f05d6848590af85c4399de92a59b5ee730b91a6f592da7ad46f3e4b82e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31cde6f05d6848590af85c4399de92a59b5ee730b91a6f592da7ad46f3e4b82e", kill_on_drop: false }`
[INFO] [stdout] 31cde6f05d6848590af85c4399de92a59b5ee730b91a6f592da7ad46f3e4b82e