[INFO] fetching crate markov 1.1.0... [INFO] testing markov-1.1.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-1 [INFO] extracting crate markov 1.1.0 into /workspace/builds/worker-4-tc2/source [INFO] started tweaking crates.io crate markov 1.1.0 [INFO] finished tweaking crates.io crate markov 1.1.0 [INFO] tweaked toml for crates.io crate markov 1.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml [INFO] validating manifest of crates.io crate markov 1.1.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate markov 1.1.0 already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9d41063dd0659e51f862a3245846ad5829605ac656dba23e6133265f030d61da [INFO] running `Command { std: "docker" "start" "-a" "9d41063dd0659e51f862a3245846ad5829605ac656dba23e6133265f030d61da", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9d41063dd0659e51f862a3245846ad5829605ac656dba23e6133265f030d61da", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9d41063dd0659e51f862a3245846ad5829605ac656dba23e6133265f030d61da", kill_on_drop: false }` [INFO] [stdout] 9d41063dd0659e51f862a3245846ad5829605ac656dba23e6133265f030d61da [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 809388f1a056255123b6b918e9b4e6b436f19579aa6ecb7159590f4e20f4a822 [INFO] running `Command { std: "docker" "start" "-a" "809388f1a056255123b6b918e9b4e6b436f19579aa6ecb7159590f4e20f4a822", kill_on_drop: false }` [INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024` [INFO] [stderr] Compiling autocfg v1.0.0 [INFO] [stderr] Compiling libc v0.2.73 [INFO] [stderr] Compiling proc-macro2 v1.0.19 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling serde v1.0.114 [INFO] [stderr] Compiling syn v1.0.35 [INFO] [stderr] Compiling ppv-lite86 v0.2.8 [INFO] [stderr] Compiling serde_derive v1.0.114 [INFO] [stderr] Compiling linked-hash-map v0.5.3 [INFO] [stderr] Compiling dtoa v0.4.6 [INFO] [stderr] Compiling either v1.5.3 [INFO] [stderr] Compiling yaml-rust v0.4.4 [INFO] [stderr] Compiling hashbrown v0.8.1 [INFO] [stderr] Compiling indexmap v1.5.0 [INFO] [stderr] Compiling fixedbitset v0.2.0 [INFO] [stderr] Compiling itertools v0.9.0 [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling petgraph v0.5.1 [INFO] [stderr] Compiling serde_yaml v0.8.13 [INFO] [stderr] Compiling markov v1.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:154:17 [INFO] [stdout] | [INFO] [stdout] 154 | pub fn iter(&self) -> InfiniteChainIterator { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 154 | pub fn iter(&self) -> InfiniteChainIterator<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:159:21 [INFO] [stdout] | [INFO] [stdout] 159 | pub fn iter_for(&self, size: usize) -> SizedChainIterator { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 159 | pub fn iter_for(&self, size: usize) -> SizedChainIterator<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:279:21 [INFO] [stdout] | [INFO] [stdout] 279 | pub fn str_iter(&self) -> InfiniteChainStringIterator { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 279 | pub fn str_iter(&self) -> InfiniteChainStringIterator<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:285:25 [INFO] [stdout] | [INFO] [stdout] 285 | pub fn str_iter_for(&self, size: usize) -> SizedChainStringIterator { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 285 | pub fn str_iter_for(&self, size: usize) -> SizedChainStringIterator<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/bin/markgen.rs:48:26 [INFO] [stdout] | [INFO] [stdout] 48 | Err(e) => panic!(e.to_string()), [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 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 48 | Err(e) => panic!("{}", e.to_string()), [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 20.37s [INFO] running `Command { std: "docker" "inspect" "809388f1a056255123b6b918e9b4e6b436f19579aa6ecb7159590f4e20f4a822", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "809388f1a056255123b6b918e9b4e6b436f19579aa6ecb7159590f4e20f4a822", kill_on_drop: false }` [INFO] [stdout] 809388f1a056255123b6b918e9b4e6b436f19579aa6ecb7159590f4e20f4a822 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 98578952a47fea32e4963c7a599f3abeb9e847ac2b5239bd49df47cfa2d67675 [INFO] running `Command { std: "docker" "start" "-a" "98578952a47fea32e4963c7a599f3abeb9e847ac2b5239bd49df47cfa2d67675", kill_on_drop: false }` [INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024` [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:154:17 [INFO] [stdout] | [INFO] [stdout] 154 | pub fn iter(&self) -> InfiniteChainIterator { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 154 | pub fn iter(&self) -> InfiniteChainIterator<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling markov v1.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:159:21 [INFO] [stdout] | [INFO] [stdout] 159 | pub fn iter_for(&self, size: usize) -> SizedChainIterator { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 159 | pub fn iter_for(&self, size: usize) -> SizedChainIterator<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:279:21 [INFO] [stdout] | [INFO] [stdout] 279 | pub fn str_iter(&self) -> InfiniteChainStringIterator { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 279 | pub fn str_iter(&self) -> InfiniteChainStringIterator<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:285:25 [INFO] [stdout] | [INFO] [stdout] 285 | pub fn str_iter_for(&self, size: usize) -> SizedChainStringIterator { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 285 | pub fn str_iter_for(&self, size: usize) -> SizedChainStringIterator<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: panic message is not a string literal [INFO] [stdout] --> src/bin/markgen.rs:48:26 [INFO] [stdout] | [INFO] [stdout] 48 | Err(e) => panic!(e.to_string()), [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 [INFO] [stdout] = note: for more information, see [INFO] [stdout] = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stdout] help: add a "{}" format string to `Display` the message [INFO] [stdout] | [INFO] [stdout] 48 | Err(e) => panic!("{}", e.to_string()), [INFO] [stdout] | +++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:154:17 [INFO] [stdout] | [INFO] [stdout] 154 | pub fn iter(&self) -> InfiniteChainIterator { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 154 | pub fn iter(&self) -> InfiniteChainIterator<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:159:21 [INFO] [stdout] | [INFO] [stdout] 159 | pub fn iter_for(&self, size: usize) -> SizedChainIterator { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 159 | pub fn iter_for(&self, size: usize) -> SizedChainIterator<'_, T> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:279:21 [INFO] [stdout] | [INFO] [stdout] 279 | pub fn str_iter(&self) -> InfiniteChainStringIterator { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 279 | pub fn str_iter(&self) -> InfiniteChainStringIterator<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/lib.rs:285:25 [INFO] [stdout] | [INFO] [stdout] 285 | pub fn str_iter_for(&self, size: usize) -> SizedChainStringIterator { [INFO] [stdout] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stdout] | | [INFO] [stdout] | the lifetime is elided here [INFO] [stdout] | [INFO] [stdout] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stdout] help: use `'_` for type paths [INFO] [stdout] | [INFO] [stdout] 285 | pub fn str_iter_for(&self, size: usize) -> SizedChainStringIterator<'_> { [INFO] [stdout] | ++++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 2.21s [INFO] running `Command { std: "docker" "inspect" "98578952a47fea32e4963c7a599f3abeb9e847ac2b5239bd49df47cfa2d67675", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "98578952a47fea32e4963c7a599f3abeb9e847ac2b5239bd49df47cfa2d67675", kill_on_drop: false }` [INFO] [stdout] 98578952a47fea32e4963c7a599f3abeb9e847ac2b5239bd49df47cfa2d67675 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] c0af7b0ae5ab7b013839063d9c4311df218a1844c8ef4097cb6affbec371664f [INFO] running `Command { std: "docker" "start" "-a" "c0af7b0ae5ab7b013839063d9c4311df218a1844c8ef4097cb6affbec371664f", kill_on_drop: false }` [INFO] [stderr] warning: `package.edition` is unspecified, defaulting to `2015` while the latest is `2024` [INFO] [stdout] [INFO] [stdout] running 17 tests [INFO] [stdout] test test::feed ... ok [INFO] [stdout] test test::generate ... ok [INFO] [stdout] test test::feed_str ... ok [INFO] [stdout] test test::generate_from_unfound_token ... ok [INFO] [stdout] test test::generate_str ... ok [INFO] [stdout] test test::generate_str_from_token ... ok [INFO] [stdout] test test::generate_str_from_unfound_token ... ok [INFO] [stdout] test test::is_empty ... ok [INFO] [stdout] test test::iter ... ok [INFO] [stdout] test test::iter_for ... ok [INFO] [stdout] test test::str_iter ... ok [INFO] [stdout] test test::str_iter_for ... ok [INFO] [stdout] test test::new ... ok [INFO] [stdout] test test::generate_from_token ... ok [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/lib.rs:154:17 [INFO] [stderr] | [INFO] [stderr] 154 | pub fn iter(&self) -> InfiniteChainIterator { [INFO] [stderr] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 154 | pub fn iter(&self) -> InfiniteChainIterator<'_, T> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/lib.rs:159:21 [INFO] [stderr] | [INFO] [stderr] 159 | pub fn iter_for(&self, size: usize) -> SizedChainIterator { [INFO] [stderr] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 159 | pub fn iter_for(&self, size: usize) -> SizedChainIterator<'_, T> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/lib.rs:279:21 [INFO] [stderr] | [INFO] [stderr] 279 | pub fn str_iter(&self) -> InfiniteChainStringIterator { [INFO] [stderr] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 279 | pub fn str_iter(&self) -> InfiniteChainStringIterator<'_> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stderr] --> src/lib.rs:285:25 [INFO] [stderr] | [INFO] [stderr] 285 | pub fn str_iter_for(&self, size: usize) -> SizedChainStringIterator { [INFO] [stderr] | ^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here [INFO] [stderr] | | [INFO] [stderr] | the lifetime is elided here [INFO] [stderr] | [INFO] [stderr] = help: the same lifetime is referred to in inconsistent ways, making the signature confusing [INFO] [stderr] help: use `'_` for type paths [INFO] [stderr] | [INFO] [stderr] 285 | pub fn str_iter_for(&self, size: usize) -> SizedChainStringIterator<'_> { [INFO] [stderr] | ++++ [INFO] [stderr] [INFO] [stderr] warning: `markov` (lib) generated 4 warnings (run `cargo fix --lib -p markov` to apply 4 suggestions) [INFO] [stderr] warning: `markov` (lib test) generated 4 warnings (4 duplicates) [INFO] [stderr] warning: panic message is not a string literal [INFO] [stderr] --> src/bin/markgen.rs:48:26 [INFO] [stderr] | [INFO] [stderr] 48 | Err(e) => panic!(e.to_string()), [INFO] [stderr] | ^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: this usage of `panic!()` is deprecated; it will be a hard error in Rust 2021 [INFO] [stderr] = note: for more information, see [INFO] [stderr] = note: for more information, see [INFO] [stderr] = note: `#[warn(non_fmt_panics)]` (part of `#[warn(rust_2021_compatibility)]`) on by default [INFO] [stderr] help: add a "{}" format string to `Display` the message [INFO] [stderr] | [INFO] [stderr] 48 | Err(e) => panic!("{}", e.to_string()), [INFO] [stderr] | +++++ [INFO] [stderr] [INFO] [stderr] warning: `markov` (bin "markgen" test) generated 1 warning (run `cargo fix --bin "markgen" -p markov --tests` to apply 1 suggestion) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/markov-823bc5540987b400) [INFO] [stdout] test test::generate_str_from_token_higher_order ... ok [INFO] [stdout] test test::generate_for_higher_order ... ok [INFO] [stdout] test test::save_then_load ... FAILED [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] [INFO] [stdout] ---- test::save_then_load stdout ---- [INFO] [stdout] [INFO] [stdout] thread 'test::save_then_load' (31) panicked at src/lib.rs:491:33: [INFO] [stdout] called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: ReadOnlyFilesystem, message: "Read-only file system" } [INFO] [stdout] stack backtrace: [INFO] [stdout] 0: 0x6123b57914ea - std[e72de78501789eb0]::backtrace_rs::backtrace::libunwind::trace [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9 [INFO] [stdout] 1: 0x6123b57914ea - std[e72de78501789eb0]::backtrace_rs::backtrace::trace_unsynchronized:: [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14 [INFO] [stdout] 2: 0x6123b57914ea - std[e72de78501789eb0]::sys::backtrace::_print_fmt [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/sys/backtrace.rs:74:9 [INFO] [stdout] 3: 0x6123b57914ea - <::print::DisplayBacktrace as core[6aaeda2c7ad07a48]::fmt::Display>::fmt [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/sys/backtrace.rs:44:26 [INFO] [stdout] 4: 0x6123b57a6aba - ::fmt [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/core/src/fmt/rt.rs:152:76 [INFO] [stdout] 5: 0x6123b57a6aba - core[6aaeda2c7ad07a48]::fmt::write [INFO] [stdout] 6: 0x6123b5795ea2 - std[e72de78501789eb0]::io::default_write_fmt::> [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/io/mod.rs:639:11 [INFO] [stdout] 7: 0x6123b5795ea2 - as std[e72de78501789eb0]::io::Write>::write_fmt [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/io/mod.rs:1994:13 [INFO] [stdout] 8: 0x6123b577070f - ::print [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/sys/backtrace.rs:47:9 [INFO] [stdout] 9: 0x6123b577070f - std[e72de78501789eb0]::panicking::default_hook::{closure#0} [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:292:27 [INFO] [stdout] 10: 0x6123b5789aa9 - std[e72de78501789eb0]::panicking::default_hook [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:316:9 [INFO] [stdout] 11: 0x6123b56b57dc - core[6aaeda2c7ad07a48]::ops::function::Fn<(&'a std[e72de78501789eb0]::panic::PanicHookInfo<'b>,), Output = ()> + core[6aaeda2c7ad07a48]::marker::Sync + core[6aaeda2c7ad07a48]::marker::Send> as core[6aaeda2c7ad07a48]::ops::function::Fn<(&std[e72de78501789eb0]::panic::PanicHookInfo,)>>::call [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/alloc/src/boxed.rs:2254:9 [INFO] [stdout] 12: 0x6123b56b57dc - test[4f12b380f1fb68c5]::test_main_with_exit_callback::::{closure#0} [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/test/src/lib.rs:145:21 [INFO] [stdout] 13: 0x6123b5789c62 - core[6aaeda2c7ad07a48]::ops::function::Fn<(&'a std[e72de78501789eb0]::panic::PanicHookInfo<'b>,), Output = ()> + core[6aaeda2c7ad07a48]::marker::Sync + core[6aaeda2c7ad07a48]::marker::Send> as core[6aaeda2c7ad07a48]::ops::function::Fn<(&std[e72de78501789eb0]::panic::PanicHookInfo,)>>::call [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/alloc/src/boxed.rs:2254:9 [INFO] [stdout] 14: 0x6123b5789c62 - std[e72de78501789eb0]::panicking::panic_with_hook [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:833:13 [INFO] [stdout] 15: 0x6123b57707c8 - std[e72de78501789eb0]::panicking::panic_handler::{closure#0} [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:698:13 [INFO] [stdout] 16: 0x6123b5768139 - std[e72de78501789eb0]::sys::backtrace::__rust_end_short_backtrace:: [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/sys/backtrace.rs:182:18 [INFO] [stdout] 17: 0x6123b57714dd - __rustc[78a4cf188af856fc]::rust_begin_unwind [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:689:5 [INFO] [stdout] 18: 0x6123b57a724c - core[6aaeda2c7ad07a48]::panicking::panic_fmt [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/core/src/panicking.rs:80:14 [INFO] [stdout] 19: 0x6123b57a6fc2 - core[6aaeda2c7ad07a48]::result::unwrap_failed [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/core/src/result.rs:1867:5 [INFO] [stdout] 20: 0x6123b5690588 - >::unwrap [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/core/src/result.rs:1233:23 [INFO] [stdout] 21: 0x6123b5690588 - markov[3452e50a4bac02f4]::test::save_then_load [INFO] [stdout] at /opt/rustwide/workdir/src/lib.rs:491:33 [INFO] [stdout] 22: 0x6123b568fb57 - markov[3452e50a4bac02f4]::test::save_then_load::{closure#0} [INFO] [stdout] at /opt/rustwide/workdir/src/lib.rs:488:24 [INFO] [stdout] 23: 0x6123b569bb66 - >::call_once [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 24: 0x6123b56a98bb - core[6aaeda2c7ad07a48]::result::Result<(), alloc[28d2dab30c1dc666]::string::String> as core[6aaeda2c7ad07a48]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 25: 0x6123b56a98bb - test[4f12b380f1fb68c5]::__rust_begin_short_backtrace::, fn() -> core[6aaeda2c7ad07a48]::result::Result<(), alloc[28d2dab30c1dc666]::string::String>> [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/test/src/lib.rs:663:18 [INFO] [stdout] 26: 0x6123b56b62ab - test[4f12b380f1fb68c5]::run_test_in_process::{closure#0} [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/test/src/lib.rs:686:74 [INFO] [stdout] 27: 0x6123b56b62ab - as core[6aaeda2c7ad07a48]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/core/src/panic/unwind_safe.rs:275:9 [INFO] [stdout] 28: 0x6123b56b62ab - std[e72de78501789eb0]::panicking::catch_unwind::do_call::, core[6aaeda2c7ad07a48]::result::Result<(), alloc[28d2dab30c1dc666]::string::String>> [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:581:40 [INFO] [stdout] 29: 0x6123b56b62ab - std[e72de78501789eb0]::panicking::catch_unwind::, core[6aaeda2c7ad07a48]::panic::unwind_safe::AssertUnwindSafe> [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:544:19 [INFO] [stdout] 30: 0x6123b56b62ab - std[e72de78501789eb0]::panic::catch_unwind::, core[6aaeda2c7ad07a48]::result::Result<(), alloc[28d2dab30c1dc666]::string::String>> [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panic.rs:359:14 [INFO] [stdout] 31: 0x6123b56b62ab - test[4f12b380f1fb68c5]::run_test_in_process [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/test/src/lib.rs:686:27 [INFO] [stdout] 32: 0x6123b56b62ab - test[4f12b380f1fb68c5]::run_test::{closure#0} [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/test/src/lib.rs:607:43 [INFO] [stdout] 33: 0x6123b56b19c4 - test[4f12b380f1fb68c5]::run_test::{closure#1} [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/test/src/lib.rs:637:41 [INFO] [stdout] 34: 0x6123b56b19c4 - std[e72de78501789eb0]::sys::backtrace::__rust_begin_short_backtrace:: [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/sys/backtrace.rs:166:18 [INFO] [stdout] 35: 0x6123b56b8eb2 - std[e72de78501789eb0]::thread::lifecycle::spawn_unchecked::::{closure#1}::{closure#0} [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/thread/lifecycle.rs:91:13 [INFO] [stdout] 36: 0x6123b56b8eb2 - ::{closure#1}::{closure#0}> as core[6aaeda2c7ad07a48]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/core/src/panic/unwind_safe.rs:275:9 [INFO] [stdout] 37: 0x6123b56b8eb2 - std[e72de78501789eb0]::panicking::catch_unwind::do_call::::{closure#1}::{closure#0}>, ()> [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:581:40 [INFO] [stdout] 38: 0x6123b56b8eb2 - std[e72de78501789eb0]::panicking::catch_unwind::<(), core[6aaeda2c7ad07a48]::panic::unwind_safe::AssertUnwindSafe::{closure#1}::{closure#0}>> [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panicking.rs:544:19 [INFO] [stdout] 39: 0x6123b56b8eb2 - std[e72de78501789eb0]::panic::catch_unwind::::{closure#1}::{closure#0}>, ()> [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/panic.rs:359:14 [INFO] [stdout] 40: 0x6123b56b8eb2 - std[e72de78501789eb0]::thread::lifecycle::spawn_unchecked::::{closure#1} [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/thread/lifecycle.rs:89:26 [INFO] [stdout] 41: 0x6123b56b8eb2 - ::{closure#1} as core[6aaeda2c7ad07a48]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0} [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/core/src/ops/function.rs:250:5 [INFO] [stdout] 42: 0x6123b5790dff - + core[6aaeda2c7ad07a48]::marker::Send> as core[6aaeda2c7ad07a48]::ops::function::FnOnce<()>>::call_once [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/alloc/src/boxed.rs:2240:9 [INFO] [stdout] 43: 0x6123b5790dff - ::new::thread_start [INFO] [stdout] at /rustc/dec9417b8611e34e787a3e4c37686b5131f9e5c5/library/std/src/sys/thread/unix.rs:118:17 [INFO] [stdout] 44: 0x7a68219c3aa4 - [INFO] [stdout] 45: 0x7a6821a50a64 - clone [INFO] [stdout] 46: 0x0 - [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] failures: [INFO] [stdout] test::save_then_load [INFO] [stdout] [INFO] [stdout] test result: FAILED. 16 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.08s [INFO] [stdout] [INFO] [stderr] error: test failed, to rerun pass `--lib` [INFO] running `Command { std: "docker" "inspect" "c0af7b0ae5ab7b013839063d9c4311df218a1844c8ef4097cb6affbec371664f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c0af7b0ae5ab7b013839063d9c4311df218a1844c8ef4097cb6affbec371664f", kill_on_drop: false }` [INFO] [stdout] c0af7b0ae5ab7b013839063d9c4311df218a1844c8ef4097cb6affbec371664f