[INFO] cloning repository https://github.com/rrumana/rust_lecture [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rrumana/rust_lecture" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frrumana%2Frust_lecture", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frrumana%2Frust_lecture'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] e6c3c083ae175b5c7112afdec97ce9ced7260811 [INFO] building rrumana/rust_lecture against try#4987e9d4227139400384ab59296ffee3b0fb1183 for pr-146237-2 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frrumana%2Frust_lecture" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/rrumana/rust_lecture [INFO] finished tweaking git repo https://github.com/rrumana/rust_lecture [INFO] tweaked toml for git repo https://github.com/rrumana/rust_lecture written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/rrumana/rust_lecture on toolchain 4987e9d4227139400384ab59296ffee3b0fb1183 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate git repo https://github.com/rrumana/rust_lecture 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" "+4987e9d4227139400384ab59296ffee3b0fb1183" "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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 144434ce2ecfe84ee8fdb19434ee56ea801e8b42d9f429661cf0ff70bdb2faba [INFO] running `Command { std: "docker" "start" "-a" "144434ce2ecfe84ee8fdb19434ee56ea801e8b42d9f429661cf0ff70bdb2faba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "144434ce2ecfe84ee8fdb19434ee56ea801e8b42d9f429661cf0ff70bdb2faba", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "144434ce2ecfe84ee8fdb19434ee56ea801e8b42d9f429661cf0ff70bdb2faba", kill_on_drop: false }` [INFO] [stdout] 144434ce2ecfe84ee8fdb19434ee56ea801e8b42d9f429661cf0ff70bdb2faba [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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4196662aec6eab39603befe074a04791844d2b196b6cf5842980c2986ccbd6d6 [INFO] running `Command { std: "docker" "start" "-a" "4196662aec6eab39603befe074a04791844d2b196b6cf5842980c2986ccbd6d6", kill_on_drop: false }` [INFO] [stderr] Compiling smallvec v1.15.0 [INFO] [stderr] Compiling lock_api v0.4.13 [INFO] [stderr] Compiling cc v1.2.25 [INFO] [stderr] Compiling syn v2.0.101 [INFO] [stderr] Compiling socket2 v0.5.10 [INFO] [stderr] Compiling mio v1.0.4 [INFO] [stderr] Compiling signal-hook-registry v1.4.5 [INFO] [stderr] Compiling tracing-core v0.1.33 [INFO] [stderr] Compiling parking_lot_core v0.9.11 [INFO] [stderr] Compiling bitflags v2.9.1 [INFO] [stderr] Compiling parking_lot v0.12.4 [INFO] [stderr] Compiling openssl v0.10.73 [INFO] [stderr] Compiling zerocopy v0.8.25 [INFO] [stderr] Compiling getrandom v0.2.16 [INFO] [stderr] Compiling anstyle v1.0.11 [INFO] [stderr] Compiling getrandom v0.3.3 [INFO] [stderr] Compiling overload v0.1.1 [INFO] [stderr] Compiling nu-ansi-term v0.46.0 [INFO] [stderr] Compiling rustls-pemfile v1.0.4 [INFO] [stderr] Compiling anstream v0.6.19 [INFO] [stderr] Compiling rand_core v0.6.4 [INFO] [stderr] Compiling rustix v1.0.7 [INFO] [stderr] Compiling sharded-slab v0.1.7 [INFO] [stderr] Compiling clap_builder v4.5.39 [INFO] [stderr] Compiling tracing-log v0.2.0 [INFO] [stderr] Compiling crossbeam-channel v0.5.15 [INFO] [stderr] Compiling is-terminal v0.4.16 [INFO] [stderr] Compiling openssl-sys v0.9.109 [INFO] [stderr] Compiling sync_wrapper v0.1.2 [INFO] [stderr] Compiling humantime v2.2.0 [INFO] [stderr] Compiling termcolor v1.4.1 [INFO] [stderr] Compiling tracing-subscriber v0.3.19 [INFO] [stderr] Compiling crossbeam v0.8.4 [INFO] [stderr] Compiling native-tls v0.2.14 [INFO] [stderr] Compiling rayon v1.10.0 [INFO] [stderr] Compiling env_logger v0.10.2 [INFO] [stderr] Compiling ppv-lite86 v0.2.21 [INFO] [stderr] Compiling uuid v1.17.0 [INFO] [stderr] Compiling tempfile v3.20.0 [INFO] [stderr] Compiling rand_chacha v0.3.1 [INFO] [stderr] Compiling itertools v0.12.1 [INFO] [stderr] Compiling rand v0.8.5 [INFO] [stderr] Compiling synstructure v0.13.2 [INFO] [stderr] Compiling zerofrom-derive v0.1.6 [INFO] [stderr] Compiling yoke-derive v0.8.0 [INFO] [stderr] Compiling zerovec-derive v0.11.1 [INFO] [stderr] Compiling displaydoc v0.2.5 [INFO] [stderr] Compiling futures-macro v0.3.31 [INFO] [stderr] Compiling tokio-macros v2.5.0 [INFO] [stderr] Compiling serde_derive v1.0.219 [INFO] [stderr] Compiling tracing-attributes v0.1.28 [INFO] [stderr] Compiling openssl-macros v0.1.1 [INFO] [stderr] Compiling futures-util v0.3.31 [INFO] [stderr] Compiling tokio v1.45.1 [INFO] [stderr] Compiling thiserror-impl v1.0.69 [INFO] [stderr] Compiling clap_derive v4.5.32 [INFO] [stderr] Compiling zerofrom v0.1.6 [INFO] [stderr] Compiling yoke v0.8.0 [INFO] [stderr] Compiling zerovec v0.11.2 [INFO] [stderr] Compiling zerotrie v0.2.2 [INFO] [stderr] Compiling tracing v0.1.41 [INFO] [stderr] Compiling thiserror v1.0.69 [INFO] [stderr] Compiling tinystr v0.8.1 [INFO] [stderr] Compiling potential_utf v0.1.2 [INFO] [stderr] Compiling icu_locale_core v2.0.0 [INFO] [stderr] Compiling icu_collections v2.0.0 [INFO] [stderr] Compiling futures-executor v0.3.31 [INFO] [stderr] Compiling futures v0.3.31 [INFO] [stderr] Compiling clap v4.5.39 [INFO] [stderr] Compiling icu_provider v2.0.0 [INFO] [stderr] Compiling serde v1.0.219 [INFO] [stderr] Compiling icu_properties v2.0.1 [INFO] [stderr] Compiling icu_normalizer v2.0.0 [INFO] [stderr] Compiling tokio-util v0.7.15 [INFO] [stderr] Compiling tokio-native-tls v0.3.1 [INFO] [stderr] Compiling h2 v0.3.26 [INFO] [stderr] Compiling idna_adapter v1.2.1 [INFO] [stderr] Compiling idna v1.0.3 [INFO] [stderr] Compiling serde_urlencoded v0.7.1 [INFO] [stderr] Compiling serde_json v1.0.140 [INFO] [stderr] Compiling chrono v0.4.41 [INFO] [stderr] Compiling url v2.5.4 [INFO] [stderr] Compiling hyper v0.14.32 [INFO] [stderr] Compiling hyper-tls v0.5.0 [INFO] [stderr] Compiling reqwest v0.11.27 [INFO] [stderr] Compiling lecture v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/section6_idioms.rs:337:36 [INFO] [stdout] | [INFO] [stdout] 337 | fn process_maybe_modify(input: &str, should_modify: bool) -> Cow { [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] 337 | fn process_maybe_modify(input: &str, should_modify: bool) -> Cow<'_, str> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 46s [INFO] running `Command { std: "docker" "inspect" "4196662aec6eab39603befe074a04791844d2b196b6cf5842980c2986ccbd6d6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4196662aec6eab39603befe074a04791844d2b196b6cf5842980c2986ccbd6d6", kill_on_drop: false }` [INFO] [stdout] 4196662aec6eab39603befe074a04791844d2b196b6cf5842980c2986ccbd6d6 [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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+4987e9d4227139400384ab59296ffee3b0fb1183" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3e250308a84323a001d303d131af8a6aa3e192307800a4a5624f87a642fce512 [INFO] running `Command { std: "docker" "start" "-a" "3e250308a84323a001d303d131af8a6aa3e192307800a4a5624f87a642fce512", kill_on_drop: false }` [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/section6_idioms.rs:337:36 [INFO] [stdout] | [INFO] [stdout] 337 | fn process_maybe_modify(input: &str, should_modify: bool) -> Cow { [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] 337 | fn process_maybe_modify(input: &str, should_modify: bool) -> Cow<'_, str> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling lecture v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing [INFO] [stdout] --> src/section6_idioms.rs:337:36 [INFO] [stdout] | [INFO] [stdout] 337 | fn process_maybe_modify(input: &str, should_modify: bool) -> Cow { [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] 337 | fn process_maybe_modify(input: &str, should_modify: bool) -> Cow<'_, str> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 1.96s [INFO] running `Command { std: "docker" "inspect" "3e250308a84323a001d303d131af8a6aa3e192307800a4a5624f87a642fce512", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3e250308a84323a001d303d131af8a6aa3e192307800a4a5624f87a642fce512", kill_on_drop: false }` [INFO] [stdout] 3e250308a84323a001d303d131af8a6aa3e192307800a4a5624f87a642fce512