[INFO] cloning repository https://github.com/off-by-one/pwgram
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/off-by-one/pwgram" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foff-by-one%2Fpwgram", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foff-by-one%2Fpwgram'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 55d5651f1f376fd99a66f722c37dbe0d4c6f9a48
[INFO] checking off-by-one/pwgram against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foff-by-one%2Fpwgram" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc2/source/rust-toolchain.toml
[INFO] started tweaking git repo https://github.com/off-by-one/pwgram
[INFO] finished tweaking git repo https://github.com/off-by-one/pwgram
[INFO] tweaked toml for git repo https://github.com/off-by-one/pwgram written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/off-by-one/pwgram on toolchain a5689b034ad287112f709693384a37f1377eb9cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/off-by-one/pwgram 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" "+a5689b034ad287112f709693384a37f1377eb9cc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] f823b815866eff776ab03858693b72e304000ef13fd3d43dcf44065fff4cd339
[INFO] running `Command { std: "docker" "start" "f823b815866eff776ab03858693b72e304000ef13fd3d43dcf44065fff4cd339", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f823b815866eff776ab03858693b72e304000ef13fd3d43dcf44065fff4cd339", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f823b815866eff776ab03858693b72e304000ef13fd3d43dcf44065fff4cd339" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f823b815866eff776ab03858693b72e304000ef13fd3d43dcf44065fff4cd339", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "f823b815866eff776ab03858693b72e304000ef13fd3d43dcf44065fff4cd339" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]    Compiling indexmap v1.9.1
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking textwrap v0.15.0
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking once_cell v1.14.0
[INFO] [stderr]     Checking unicode-segmentation v1.10.0
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling lexpr-macros v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking lexpr v0.2.6
[INFO] [stderr]    Compiling clap_derive v3.2.18
[INFO] [stderr]     Checking clap v3.2.20
[INFO] [stderr]     Checking serde-lexpr v0.1.2
[INFO] [stderr]     Checking pwgram v2.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: useless conversion to the same type: `BTreeMap<u8, T>`
[INFO] [stdout]   --> src/bigram.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 | /     transitions
[INFO] [stdout] 61 | |         .into_iter()
[INFO] [stdout] 62 | |         .fold(
[INFO] [stdout] 63 | |             (BTreeMap::<Ω, T>::new(), 0u64),
[INFO] [stdout] ...  |
[INFO] [stdout] 71 | |         .0
[INFO] [stdout] 72 | |         .into()
[INFO] [stdout]    | |_______________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 71 -         .0
[INFO] [stdout] 72 -         .into()
[INFO] [stdout] 71 +         .0
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 60 ~     <BTreeMap<u8, T> as Into<_>>::into(transitions
[INFO] [stdout] 61 |         .into_iter()
[INFO] [stdout] ...
[INFO] [stdout] 70 |         )
[INFO] [stdout] 71 ~         .0)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bigram.rs:86:21
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn gen_iter(&self) -> BigramGeneratorIter {
[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] 86 |     pub fn gen_iter(&self) -> BigramGeneratorIter<'_> {
[INFO] [stdout]    |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pwgram` (bin "pwgram-train") due to 1 previous error; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: useless conversion to the same type: `BTreeMap<u8, T>`
[INFO] [stdout]   --> src/bigram.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 | /     transitions
[INFO] [stdout] 61 | |         .into_iter()
[INFO] [stdout] 62 | |         .fold(
[INFO] [stdout] 63 | |             (BTreeMap::<Ω, T>::new(), 0u64),
[INFO] [stdout] ...  |
[INFO] [stdout] 71 | |         .0
[INFO] [stdout] 72 | |         .into()
[INFO] [stdout]    | |_______________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 71 -         .0
[INFO] [stdout] 72 -         .into()
[INFO] [stdout] 71 +         .0
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 60 ~     <BTreeMap<u8, T> as Into<_>>::into(transitions
[INFO] [stdout] 61 |         .into_iter()
[INFO] [stdout] ...
[INFO] [stdout] 70 |         )
[INFO] [stdout] 71 ~         .0)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pwgram` (bin "pwgram" test) due to 1 previous error; 1 warning emitted
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bigram.rs:86:21
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn gen_iter(&self) -> BigramGeneratorIter {
[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] 86 |     pub fn gen_iter(&self) -> BigramGeneratorIter<'_> {
[INFO] [stdout]    |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `BTreeMap<u8, T>`
[INFO] [stdout]   --> src/bigram.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 | /     transitions
[INFO] [stdout] 61 | |         .into_iter()
[INFO] [stdout] 62 | |         .fold(
[INFO] [stdout] 63 | |             (BTreeMap::<Ω, T>::new(), 0u64),
[INFO] [stdout] ...  |
[INFO] [stdout] 71 | |         .0
[INFO] [stdout] 72 | |         .into()
[INFO] [stdout]    | |_______________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 71 -         .0
[INFO] [stdout] 72 -         .into()
[INFO] [stdout] 71 +         .0
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 60 ~     <BTreeMap<u8, T> as Into<_>>::into(transitions
[INFO] [stdout] 61 |         .into_iter()
[INFO] [stdout] ...
[INFO] [stdout] 70 |         )
[INFO] [stdout] 71 ~         .0)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bigram.rs:86:21
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn gen_iter(&self) -> BigramGeneratorIter {
[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] 86 |     pub fn gen_iter(&self) -> BigramGeneratorIter<'_> {
[INFO] [stdout]    |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `BTreeMap<u8, T>`
[INFO] [stdout]   --> src/bigram.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 | /     transitions
[INFO] [stdout] 61 | |         .into_iter()
[INFO] [stdout] 62 | |         .fold(
[INFO] [stdout] 63 | |             (BTreeMap::<Ω, T>::new(), 0u64),
[INFO] [stdout] ...  |
[INFO] [stdout] 71 | |         .0
[INFO] [stdout] 72 | |         .into()
[INFO] [stdout]    | |_______________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 71 -         .0
[INFO] [stdout] 72 -         .into()
[INFO] [stdout] 71 +         .0
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 60 ~     <BTreeMap<u8, T> as Into<_>>::into(transitions
[INFO] [stdout] 61 |         .into_iter()
[INFO] [stdout] ...
[INFO] [stdout] 70 |         )
[INFO] [stdout] 71 ~         .0)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/bigram.rs:86:21
[INFO] [stdout]    |
[INFO] [stdout] 86 |     pub fn gen_iter(&self) -> BigramGeneratorIter {
[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] 86 |     pub fn gen_iter(&self) -> BigramGeneratorIter<'_> {
[INFO] [stdout]    |                                                  ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `pwgram` (bin "pwgram") due to 1 previous error; 1 warning emitted
[INFO] [stderr] error: could not compile `pwgram` (bin "pwgram-train" test) due to 1 previous error; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "f823b815866eff776ab03858693b72e304000ef13fd3d43dcf44065fff4cd339", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f823b815866eff776ab03858693b72e304000ef13fd3d43dcf44065fff4cd339", kill_on_drop: false }`
[INFO] [stdout] f823b815866eff776ab03858693b72e304000ef13fd3d43dcf44065fff4cd339
