[INFO] fetching crate conway 0.3.0...
[INFO] checking conway-0.3.0 against master#9610dfe5a9a731ced1ea4923ecbd0c57fe367898 for beta-170-4
[INFO] extracting crate conway 0.3.0 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate conway 0.3.0 on toolchain 9610dfe5a9a731ced1ea4923ecbd0c57fe367898
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate conway 0.3.0
[INFO] finished tweaking crates.io crate conway 0.3.0
[INFO] tweaked toml for crates.io crate conway 0.3.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" __CARGO_TEST_CHANNEL_OVERRIDE_DO_NOT_USE_THIS="nightly" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded custom_error v1.9.2
[INFO] [stderr]   Downloaded env_logger v0.3.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8686714b80999b7425533de38bf692b997daa0997410a1ca6598299a0ced537c
[INFO] running `Command { std: "docker" "start" "-a" "8686714b80999b7425533de38bf692b997daa0997410a1ca6598299a0ced537c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8686714b80999b7425533de38bf692b997daa0997410a1ca6598299a0ced537c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8686714b80999b7425533de38bf692b997daa0997410a1ca6598299a0ced537c", kill_on_drop: false }`
[INFO] [stdout] 8686714b80999b7425533de38bf692b997daa0997410a1ca6598299a0ced537c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 71411f1bc69fe3eda757e46b6ce2b1ef84c8c235c11722e942102b9ba3ec0911
[INFO] running `Command { std: "docker" "start" "-a" "71411f1bc69fe3eda757e46b6ce2b1ef84c8c235c11722e942102b9ba3ec0911", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.18
[INFO] [stderr]     Checking utf8-ranges v0.1.3
[INFO] [stderr]     Checking regex-syntax v0.3.9
[INFO] [stderr]     Checking custom_error v1.9.2
[INFO] [stderr]     Checking memchr v0.1.11
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking aho-corasick v0.5.3
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking regex v0.1.58
[INFO] [stderr]     Checking env_logger v0.3.5
[INFO] [stderr]     Checking conway v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/universe.rs:1323:91
[INFO] [stdout]      |
[INFO] [stdout] 1323 |     pub fn each_non_dead(&self, region: Region, visibility: Option<usize>, callback: &mut FnMut(usize, usize, CellState)) {
[INFO] [stdout]      |                                                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1323 |     pub fn each_non_dead(&self, region: Region, visibility: Option<usize>, callback: &mut dyn FnMut(usize, usize, CellState)) {
[INFO] [stdout]      |                                                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/universe.rs:1418:80
[INFO] [stdout]      |
[INFO] [stdout] 1418 |     pub fn each_non_dead_full(&self, visibility: Option<usize>, callback: &mut FnMut(usize, usize, CellState)) {
[INFO] [stdout]      |                                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1418 |     pub fn each_non_dead_full(&self, visibility: Option<usize>, callback: &mut dyn FnMut(usize, usize, CellState)) {
[INFO] [stdout]      |                                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/universe.rs:1323:91
[INFO] [stdout]      |
[INFO] [stdout] 1323 |     pub fn each_non_dead(&self, region: Region, visibility: Option<usize>, callback: &mut FnMut(usize, usize, CellState)) {
[INFO] [stdout]      |                                                                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]      = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1323 |     pub fn each_non_dead(&self, region: Region, visibility: Option<usize>, callback: &mut dyn FnMut(usize, usize, CellState)) {
[INFO] [stdout]      |                                                                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]     --> src/universe.rs:1418:80
[INFO] [stdout]      |
[INFO] [stdout] 1418 |     pub fn each_non_dead_full(&self, visibility: Option<usize>, callback: &mut FnMut(usize, usize, CellState)) {
[INFO] [stdout]      |                                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]      |
[INFO] [stdout] 1418 |     pub fn each_non_dead_full(&self, visibility: Option<usize>, callback: &mut dyn FnMut(usize, usize, CellState)) {
[INFO] [stdout]      |                                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/universe.rs:440:20
[INFO] [stdout]     |
[INFO] [stdout] 440 |             panic!(format!("char {:?} is invalid for this CharGrid", ch));
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 440 -             panic!(format!("char {:?} is invalid for this CharGrid", ch));
[INFO] [stdout] 440 +             panic!("char {:?} is invalid for this CharGrid", ch);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/universe.rs:1488:40
[INFO] [stdout]      |
[INFO] [stdout] 1488 |           assert!(diff.gen0 < diff.gen1, format!("expected gen0 < gen1, but {} >= {}",
[INFO] [stdout]      |  ________________________________________^
[INFO] [stdout] 1489 | |                                                diff.gen0, diff.gen1));
[INFO] [stdout]      | |____________________________________________________________________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]      = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]      |
[INFO] [stdout] 1488 ~         assert!(diff.gen0 < diff.gen1, "expected gen0 < gen1, but {} >= {}",
[INFO] [stdout] 1489 ~                                                diff.gen0, diff.gen1);
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/universe.rs:1587:30
[INFO] [stdout]      |
[INFO] [stdout] 1587 |         assert!(gen0 < gen1, format!("expected gen0 < gen1, but {} >= {}", gen0, gen1));
[INFO] [stdout]      |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]      = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]      |
[INFO] [stdout] 1587 -         assert!(gen0 < gen1, format!("expected gen0 < gen1, but {} >= {}", gen0, gen1));
[INFO] [stdout] 1587 +         assert!(gen0 < gen1, "expected gen0 < gen1, but {} >= {}", gen0, gen1);
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]    --> src/universe.rs:440:20
[INFO] [stdout]     |
[INFO] [stdout] 440 |             panic!(format!("char {:?} is invalid for this CharGrid", ch));
[INFO] [stdout]     |                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]     = note: the `panic!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout]     = note: `#[warn(non_fmt_panics)]` on by default
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]     |
[INFO] [stdout] 440 -             panic!(format!("char {:?} is invalid for this CharGrid", ch));
[INFO] [stdout] 440 +             panic!("char {:?} is invalid for this CharGrid", ch);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/universe.rs:1488:40
[INFO] [stdout]      |
[INFO] [stdout] 1488 |           assert!(diff.gen0 < diff.gen1, format!("expected gen0 < gen1, but {} >= {}",
[INFO] [stdout]      |  ________________________________________^
[INFO] [stdout] 1489 | |                                                diff.gen0, diff.gen1));
[INFO] [stdout]      | |____________________________________________________________________^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]      = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]      |
[INFO] [stdout] 1488 ~         assert!(diff.gen0 < diff.gen1, "expected gen0 < gen1, but {} >= {}",
[INFO] [stdout] 1489 ~                                                diff.gen0, diff.gen1);
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: panic message is not a string literal
[INFO] [stdout]     --> src/universe.rs:1587:30
[INFO] [stdout]      |
[INFO] [stdout] 1587 |         assert!(gen0 < gen1, format!("expected gen0 < gen1, but {} >= {}", gen0, gen1));
[INFO] [stdout]      |                              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: this usage of `assert!()` is deprecated; it will be a hard error in Rust 2021
[INFO] [stdout]      = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/panic-macro-consistency.html>
[INFO] [stdout]      = note: the `assert!()` macro supports formatting, so there's no need for the `format!()` macro here
[INFO] [stdout] help: remove the `format!(..)` macro call
[INFO] [stdout]      |
[INFO] [stdout] 1587 -         assert!(gen0 < gen1, format!("expected gen0 < gen1, but {} >= {}", gen0, gen1));
[INFO] [stdout] 1587 +         assert!(gen0 < gen1, "expected gen0 < gen1, but {} >= {}", gen0, gen1);
[INFO] [stdout]      |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `Command { std: "docker" "inspect" "71411f1bc69fe3eda757e46b6ce2b1ef84c8c235c11722e942102b9ba3ec0911", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "71411f1bc69fe3eda757e46b6ce2b1ef84c8c235c11722e942102b9ba3ec0911", kill_on_drop: false }`
[INFO] [stdout] 71411f1bc69fe3eda757e46b6ce2b1ef84c8c235c11722e942102b9ba3ec0911
