[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 try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Foff-by-one%2Fpwgram" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] removed /workspace/builds/worker-6-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-6-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/off-by-one/pwgram on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 0c0b770204f3003add8598233b69bb0e1aad59cc9e42b8451201cf7870d09854 [INFO] running `Command { std: "docker" "start" "-a" "0c0b770204f3003add8598233b69bb0e1aad59cc9e42b8451201cf7870d09854", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "0c0b770204f3003add8598233b69bb0e1aad59cc9e42b8451201cf7870d09854", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0c0b770204f3003add8598233b69bb0e1aad59cc9e42b8451201cf7870d09854", kill_on_drop: false }` [INFO] [stdout] 0c0b770204f3003add8598233b69bb0e1aad59cc9e42b8451201cf7870d09854 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] c6284754fc56ae610d47f67189b8bf68fc16d1b9cc1a75ade3af51331046e822 [INFO] running `Command { std: "docker" "start" "-a" "c6284754fc56ae610d47f67189b8bf68fc16d1b9cc1a75ade3af51331046e822", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.43 [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 ryu v1.0.11 [INFO] [stderr] Checking os_str_bytes v6.3.0 [INFO] [stderr] Checking itoa v0.4.8 [INFO] [stderr] Compiling indexmap v1.9.1 [INFO] [stderr] Checking ppv-lite86 v0.2.16 [INFO] [stderr] Checking textwrap v0.15.0 [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] Compiling quote v1.0.21 [INFO] [stderr] Checking rand_core v0.6.3 [INFO] [stderr] Checking rand_chacha v0.3.1 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Compiling lexpr-macros v0.2.1 [INFO] [stderr] Checking rand v0.8.5 [INFO] [stderr] Checking lexpr v0.2.6 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [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: this type will no longer be must used: Result [INFO] [stdout] --> src/pwgram.rs:33:5 [INFO] [stdout] | [INFO] [stdout] 33 | model: Option, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [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: this type will no longer be must used: Result [INFO] [stdout] --> src/pwgram-train.rs:35:5 [INFO] [stdout] | [INFO] [stdout] 35 | corpus: Option, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [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: this type will no longer be must used: Result [INFO] [stdout] --> src/pwgram.rs:33:5 [INFO] [stdout] | [INFO] [stdout] 33 | model: Option, [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] error: could not compile `pwgram` (bin "pwgram" test) due to 1 previous error; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stdout] error: this type will no longer be must used: Result [INFO] [stdout] --> src/pwgram-train.rs:35:5 [INFO] [stdout] | [INFO] [stdout] 35 | corpus: Option, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: requested on the command line with `-D unmustuse-in-always-ok` [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" 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] [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") due to 1 previous error; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "c6284754fc56ae610d47f67189b8bf68fc16d1b9cc1a75ade3af51331046e822", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "c6284754fc56ae610d47f67189b8bf68fc16d1b9cc1a75ade3af51331046e822", kill_on_drop: false }` [INFO] [stdout] c6284754fc56ae610d47f67189b8bf68fc16d1b9cc1a75ade3af51331046e822