[INFO] fetching crate yade 0.1.2...
[INFO] checking yade-0.1.2 against master#4fa76a4a7742bb9c1febe33019f5a9e7e4839a65 for pr-83744
[INFO] extracting crate yade 0.1.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate yade 0.1.2 on toolchain 4fa76a4a7742bb9c1febe33019f5a9e7e4839a65
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate yade 0.1.2
[INFO] finished tweaking crates.io crate yade 0.1.2
[INFO] tweaked toml for crates.io crate yade 0.1.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f355239d4a65a1f772eea226a0ae3dcc4b3428518fbdbd98b665f0d3b71466a4
[INFO] running `Command { std: "docker" "start" "-a" "f355239d4a65a1f772eea226a0ae3dcc4b3428518fbdbd98b665f0d3b71466a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f355239d4a65a1f772eea226a0ae3dcc4b3428518fbdbd98b665f0d3b71466a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f355239d4a65a1f772eea226a0ae3dcc4b3428518fbdbd98b665f0d3b71466a4", kill_on_drop: false }`
[INFO] [stdout] f355239d4a65a1f772eea226a0ae3dcc4b3428518fbdbd98b665f0d3b71466a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+4fa76a4a7742bb9c1febe33019f5a9e7e4839a65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 96a74a76ad82b418e58dc9a91a857540297f44ddbc19ab7e4ed2b58f693a9955
[INFO] running `Command { std: "docker" "start" "-a" "96a74a76ad82b418e58dc9a91a857540297f44ddbc19ab7e4ed2b58f693a9955", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking syn v0.11.11
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking synstructure v0.6.1
[INFO] [stderr]     Checking yade v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:34:29
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 _ => panic!(INVALID_CAUSE),
[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] 34 |                 _ => panic!("{}", INVALID_CAUSE),
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 _ => std::panic::panic_any(INVALID_CAUSE),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:44:45
[INFO] [stdout]    |
[INFO] [stdout] 44 | ...                   _ => panic!(INVALID_CAUSE),
[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] 44 |                                 _ => panic!("{}", INVALID_CAUSE),
[INFO] [stdout]    |                                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 44 |                                 _ => std::panic::panic_any(INVALID_CAUSE),
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:47:37
[INFO] [stdout]    |
[INFO] [stdout] 47 |                         _ => panic!(INVALID_CAUSE),
[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] 47 |                         _ => panic!("{}", INVALID_CAUSE),
[INFO] [stdout]    |                                     ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 47 |                         _ => std::panic::panic_any(INVALID_CAUSE),
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:54:37
[INFO] [stdout]    |
[INFO] [stdout] 54 |                         _ => panic!(INVALID_CAUSE),
[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] 54 |                         _ => panic!("{}", INVALID_CAUSE),
[INFO] [stdout]    |                                     ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 54 |                         _ => std::panic::panic_any(INVALID_CAUSE),
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:34:29
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 _ => panic!(INVALID_CAUSE),
[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] 34 |                 _ => panic!("{}", INVALID_CAUSE),
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 _ => std::panic::panic_any(INVALID_CAUSE),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:44:45
[INFO] [stdout]    |
[INFO] [stdout] 44 | ...                   _ => panic!(INVALID_CAUSE),
[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] 44 |                                 _ => panic!("{}", INVALID_CAUSE),
[INFO] [stdout]    |                                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 44 |                                 _ => std::panic::panic_any(INVALID_CAUSE),
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:47:37
[INFO] [stdout]    |
[INFO] [stdout] 47 |                         _ => panic!(INVALID_CAUSE),
[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] 47 |                         _ => panic!("{}", INVALID_CAUSE),
[INFO] [stdout]    |                                     ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 47 |                         _ => std::panic::panic_any(INVALID_CAUSE),
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:54:37
[INFO] [stdout]    |
[INFO] [stdout] 54 |                         _ => panic!(INVALID_CAUSE),
[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] 54 |                         _ => panic!("{}", INVALID_CAUSE),
[INFO] [stdout]    |                                     ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 54 |                         _ => std::panic::panic_any(INVALID_CAUSE),
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:34:29
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 _ => panic!(INVALID_CAUSE),
[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] 34 |                 _ => panic!("{}", INVALID_CAUSE),
[INFO] [stdout]    |                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 34 |                 _ => std::panic::panic_any(INVALID_CAUSE),
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:44:45
[INFO] [stdout]    |
[INFO] [stdout] 44 | ...                   _ => panic!(INVALID_CAUSE),
[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] 44 |                                 _ => panic!("{}", INVALID_CAUSE),
[INFO] [stdout]    |                                             ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 44 |                                 _ => std::panic::panic_any(INVALID_CAUSE),
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:47:37
[INFO] [stdout]    |
[INFO] [stdout] 47 |                         _ => panic!(INVALID_CAUSE),
[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] 47 |                         _ => panic!("{}", INVALID_CAUSE),
[INFO] [stdout]    |                                     ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 47 |                         _ => std::panic::panic_any(INVALID_CAUSE),
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]   --> src/lib.rs:54:37
[INFO] [stdout]    |
[INFO] [stdout] 54 |                         _ => panic!(INVALID_CAUSE),
[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] 54 |                         _ => panic!("{}", INVALID_CAUSE),
[INFO] [stdout]    |                                     ^^^^^
[INFO] [stdout] help: or use std::panic::panic_any instead
[INFO] [stdout]    |
[INFO] [stdout] 54 |                         _ => std::panic::panic_any(INVALID_CAUSE),
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/lib_test.rs:19:27
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub cause: Option<Box<Error>>,
[INFO] [stdout]    |                           ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> tests/lib_test.rs:35:20
[INFO] [stdout]    |
[INFO] [stdout] 35 |     pub cause: Box<Error>,
[INFO] [stdout]    |                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> tests/lib_test.rs:60:33
[INFO] [stdout]    |
[INFO] [stdout] 60 |     assert_eq!("boxed cause", e.cause().unwrap().to_string());
[INFO] [stdout]    |                                 ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> tests/lib_test.rs:72:33
[INFO] [stdout]    |
[INFO] [stdout] 72 |     assert_eq!("for a cause", e.cause().unwrap().to_string());
[INFO] [stdout]    |                                 ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> tests/lib_test.rs:84:15
[INFO] [stdout]    |
[INFO] [stdout] 84 |     assert!(e.cause().is_none());
[INFO] [stdout]    |               ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]   --> tests/lib_test.rs:96:28
[INFO] [stdout]    |
[INFO] [stdout] 96 |     assert_eq!("oh no!", e.cause().unwrap().to_string());
[INFO] [stdout]    |                            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `std::error::Error::cause`: replaced by Error::source, which can support downcasting
[INFO] [stdout]    --> tests/lib_test.rs:108:70
[INFO] [stdout]     |
[INFO] [stdout] 108 |             assert_eq!("No such file or directory (os error 2)", err.cause().unwrap().to_string());
[INFO] [stdout]     |                                                                      ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.63s
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "96a74a76ad82b418e58dc9a91a857540297f44ddbc19ab7e4ed2b58f693a9955", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96a74a76ad82b418e58dc9a91a857540297f44ddbc19ab7e4ed2b58f693a9955", kill_on_drop: false }`
[INFO] [stdout] 96a74a76ad82b418e58dc9a91a857540297f44ddbc19ab7e4ed2b58f693a9955