[INFO] fetching crate text-buffer 0.1.0...
[INFO] testing text-buffer-0.1.0 against master#562dee4820c458d823175268e41601d4c060588a for pr-154210-1
[INFO] extracting crate text-buffer 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate text-buffer 0.1.0
[INFO] finished tweaking crates.io crate text-buffer 0.1.0
[INFO] tweaked toml for crates.io crate text-buffer 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate text-buffer 0.1.0 on toolchain 562dee4820c458d823175268e41601d4c060588a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 125 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.5.1 (available: v0.8.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded get-size v0.1.4
[INFO] [stderr]   Downloaded wait-timeout v0.2.1
[INFO] [stderr]   Downloaded rusty-fork v0.3.1
[INFO] [stderr]   Downloaded str_indices v0.4.4
[INFO] [stderr]   Downloaded unarray v0.1.4
[INFO] [stderr]   Downloaded plotters-svg v0.3.7
[INFO] [stderr]   Downloaded quote-use-macros v0.7.2
[INFO] [stderr]   Downloaded quote-use v0.7.2
[INFO] [stderr]   Downloaded ciborium-io v0.2.2
[INFO] [stderr]   Downloaded collection_literals v1.0.3
[INFO] [stderr]   Downloaded ciborium-ll v0.2.2
[INFO] [stderr]   Downloaded plotters-backend v0.3.7
[INFO] [stderr]   Downloaded anes v0.1.6
[INFO] [stderr]   Downloaded half v2.7.1
[INFO] [stderr]   Downloaded clap v4.6.0
[INFO] [stderr]   Downloaded derive-where v1.6.1
[INFO] [stderr]   Downloaded itertools v0.10.5
[INFO] [stderr]   Downloaded interpolator v0.5.0
[INFO] [stderr]   Downloaded criterion v0.5.1
[INFO] [stderr]   Downloaded plotters v0.3.7
[INFO] [stderr]   Downloaded clap_builder v4.6.0
[INFO] [stderr]   Downloaded proptest v1.11.0
[INFO] [stderr]   Downloaded ciborium v0.2.2
[INFO] [stderr]   Downloaded oorandom v11.1.5
[INFO] [stderr]   Downloaded proc-macro-utils v0.8.0
[INFO] [stderr]   Downloaded anstyle v1.0.14
[INFO] [stderr]   Downloaded criterion-plot v0.5.0
[INFO] [stderr]   Downloaded tinytemplate v1.2.1
[INFO] [stderr]   Downloaded attribute-derive-macro v0.6.1
[INFO] [stderr]   Downloaded attribute-derive v0.6.1
[INFO] [stderr]   Downloaded get-size-derive v0.1.3
[INFO] [stderr]   Downloaded rand_xorshift v0.4.0
[INFO] [stderr]   Downloaded clap_lex v1.1.0
[INFO] [stderr]   Downloaded cast v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c762da677ee2a92bafcf9bb171fc3e5641d857c4fd2f6b06c66441cbf7cf42ef
[INFO] running `Command { std: "docker" "start" "-a" "c762da677ee2a92bafcf9bb171fc3e5641d857c4fd2f6b06c66441cbf7cf42ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c762da677ee2a92bafcf9bb171fc3e5641d857c4fd2f6b06c66441cbf7cf42ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c762da677ee2a92bafcf9bb171fc3e5641d857c4fd2f6b06c66441cbf7cf42ef", kill_on_drop: false }`
[INFO] [stdout] c762da677ee2a92bafcf9bb171fc3e5641d857c4fd2f6b06c66441cbf7cf42ef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d41548f17c505b18f301140a86e8af72ad9a21e50cd505b6092de0c02db3f718
[INFO] running `Command { std: "docker" "start" "-a" "d41548f17c505b18f301140a86e8af72ad9a21e50cd505b6092de0c02db3f718", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling collection_literals v1.0.3
[INFO] [stderr]    Compiling interpolator v0.5.0
[INFO] [stderr]    Compiling smallvec v1.15.1
[INFO] [stderr]    Compiling str_indices v0.4.4
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling proc-macro-utils v0.8.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling derive-where v1.6.1
[INFO] [stderr]    Compiling quote-use-macros v0.7.2
[INFO] [stderr]    Compiling quote-use v0.7.2
[INFO] [stderr]    Compiling attribute-derive-macro v0.6.1
[INFO] [stderr]    Compiling attribute-derive v0.6.1
[INFO] [stderr]    Compiling get-size-derive v0.1.3
[INFO] [stderr]    Compiling get-size v0.1.4
[INFO] [stderr]    Compiling text-buffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/buffer.rs:39:27
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-W unused-qualifications`
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 39 -     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout] 39 +     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/buffer.rs:39:55
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 39 -     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout] 39 +     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> fmt::Result {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/buffer.rs:58:27
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 58 -     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout] 58 +     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/buffer.rs:58:55
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 58 -     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout] 58 +     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> fmt::Result {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.14s
[INFO] running `Command { std: "docker" "inspect" "d41548f17c505b18f301140a86e8af72ad9a21e50cd505b6092de0c02db3f718", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d41548f17c505b18f301140a86e8af72ad9a21e50cd505b6092de0c02db3f718", kill_on_drop: false }`
[INFO] [stdout] d41548f17c505b18f301140a86e8af72ad9a21e50cd505b6092de0c02db3f718
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4a39637506b716fe10c836c1af6216d23bd06044f4bdaa1c57011ba0f68d9189
[INFO] running `Command { std: "docker" "start" "-a" "4a39637506b716fe10c836c1af6216d23bd06044f4bdaa1c57011ba0f68d9189", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.184
[INFO] [stderr]    Compiling zerocopy v0.8.48
[INFO] [stderr]    Compiling zerocopy-derive v0.8.48
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.21
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling rustix v1.1.4
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling linux-raw-sys v0.12.1
[INFO] [stderr]    Compiling bitflags v2.11.0
[INFO] [stderr]    Compiling rayon-core v1.13.0
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling fastrand v2.4.1
[INFO] [stderr]    Compiling plotters-backend v0.3.7
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling ciborium-io v0.2.2
[INFO] [stderr]    Compiling anstyle v1.0.14
[INFO] [stderr]    Compiling clap_lex v1.1.0
[INFO] [stderr]    Compiling plotters-svg v0.3.7
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling cast v0.3.0
[INFO] [stderr]    Compiling clap_builder v4.6.0
[INFO] [stderr]    Compiling bit-vec v0.8.0
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling oorandom v11.1.5
[INFO] [stderr]    Compiling anes v0.1.6
[INFO] [stderr]    Compiling unarray v0.1.4
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/buffer.rs:39:27
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-W unused-qualifications`
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 39 -     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout] 39 +     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/buffer.rs:39:55
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 39 -     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout] 39 +     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> fmt::Result {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/buffer.rs:58:27
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 58 -     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout] 58 +     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/buffer.rs:58:55
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 58 -     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout] 58 +     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> fmt::Result {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling bit-set v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.18
[INFO] [stderr]    Compiling crossbeam-deque v0.8.6
[INFO] [stderr]    Compiling wait-timeout v0.2.1
[INFO] [stderr]    Compiling is-terminal v0.4.17
[INFO] [stderr]    Compiling rand_core v0.9.5
[INFO] [stderr]    Compiling criterion-plot v0.5.0
[INFO] [stderr]    Compiling rand_xorshift v0.4.0
[INFO] [stderr]    Compiling rand v0.9.2
[INFO] [stderr]    Compiling plotters v0.3.7
[INFO] [stderr]    Compiling rayon v1.11.0
[INFO] [stderr]    Compiling clap v4.6.0
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling tempfile v3.27.0
[INFO] [stderr]    Compiling rusty-fork v0.3.1
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling half v2.7.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.21
[INFO] [stderr]    Compiling ciborium-ll v0.2.2
[INFO] [stderr]    Compiling ciborium v0.2.2
[INFO] [stderr]    Compiling rand_chacha v0.9.0
[INFO] [stderr]    Compiling proptest v1.11.0
[INFO] [stderr]    Compiling criterion v0.5.1
[INFO] [stderr]    Compiling text-buffer v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/buffer.rs:39:27
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-W unused-qualifications`
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 39 -     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout] 39 +     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/buffer.rs:39:55
[INFO] [stdout]    |
[INFO] [stdout] 39 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 39 -     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout] 39 +     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> fmt::Result {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/buffer.rs:58:27
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 58 -     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout] 58 +     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary qualification
[INFO] [stdout]   --> src/buffer.rs:58:55
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout]    |                                                       ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: remove the unnecessary path segments
[INFO] [stdout]    |
[INFO] [stdout] 58 -     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stdout] 58 +     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> fmt::Result {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 30.56s
[INFO] running `Command { std: "docker" "inspect" "4a39637506b716fe10c836c1af6216d23bd06044f4bdaa1c57011ba0f68d9189", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4a39637506b716fe10c836c1af6216d23bd06044f4bdaa1c57011ba0f68d9189", kill_on_drop: false }`
[INFO] [stdout] 4a39637506b716fe10c836c1af6216d23bd06044f4bdaa1c57011ba0f68d9189
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+562dee4820c458d823175268e41601d4c060588a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5844699c1b709d40564bf55f87de58bbd4660e127140092ab737a99222248af7
[INFO] running `Command { std: "docker" "start" "-a" "5844699c1b709d40564bf55f87de58bbd4660e127140092ab737a99222248af7", kill_on_drop: false }`
[INFO] [stderr] warning: unnecessary qualification
[INFO] [stderr]   --> src/buffer.rs:39:27
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: requested on the command line with `-W unused-qualifications`
[INFO] [stderr] help: remove the unnecessary path segments
[INFO] [stderr]    |
[INFO] [stderr] 39 -     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr] 39 +     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary qualification
[INFO] [stderr]   --> src/buffer.rs:39:55
[INFO] [stderr]    |
[INFO] [stderr] 39 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]    |                                                       ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: remove the unnecessary path segments
[INFO] [stderr]    |
[INFO] [stderr] 39 -     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr] 39 +     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> fmt::Result {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary qualification
[INFO] [stderr]   --> src/buffer.rs:58:27
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: remove the unnecessary path segments
[INFO] [stderr]    |
[INFO] [stderr] 58 -     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr] 58 +     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary qualification
[INFO] [stderr]   --> src/buffer.rs:58:55
[INFO] [stderr]    |
[INFO] [stderr] 58 |     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr]    |                                                       ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] help: remove the unnecessary path segments
[INFO] [stderr]    |
[INFO] [stderr] 58 -     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
[INFO] [stderr] 58 +     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> fmt::Result {
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] warning: `text-buffer` (lib) generated 4 warnings (run `cargo fix --lib -p text-buffer` to apply 4 suggestions)
[INFO] [stderr] warning: `text-buffer` (lib test) generated 4 warnings (4 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/text_buffer-6ded3e58e18d45e2)
[INFO] [stdout] 
[INFO] [stdout] running 29 tests
[INFO] [stdout] test buffer::test::create ... ok
[INFO] [stdout] test buffer::test::cursor ... ok
[INFO] [stdout] test buffer::test::insert_slice ... ok
[INFO] [stdout] test buffer::test::edge_cases ... ok
[INFO] [stdout] test buffer::test::test_append ... ok
[INFO] [stdout] test buffer::test::test_bounds ... ok
[INFO] [stdout] test buffer::test::test_build_unicode ... ok
[INFO] [stdout] test buffer::test::insert ... ok
[INFO] [stdout] test buffer::test::resize ... ok
[INFO] [stdout] test buffer::test::test_delete ... ok
[INFO] [stdout] test buffer::test::test_char_at ... ok
[INFO] [stdout] test buffer::test::empty ... ok
[INFO] [stdout] test buffer::test::test_delete_nothing ... ok
[INFO] [stdout] test buffer::test::test_delete_region ... ok
[INFO] [stdout] test buffer::test::delete_forwards ... ok
[INFO] [stdout] test buffer::test::test_delete_to_gap ... ok
[INFO] [stdout] test buffer::test::test_empty ... ok
[INFO] [stdout] test buffer::test::test_fuzzer ... ok
[INFO] [stdout] test buffer::test::test_pos ... ok
[INFO] [stdout] test buffer::test::test_read ... ok
[INFO] [stdout] test metric::test::test_append ... ok
[INFO] [stdout] test metric::test::test_build ... ok
[INFO] [stdout] test metric::test::test_delete_range_internal ... ok
[INFO] [stdout] test metric::test::test_insert_empty ... ok
[INFO] [stdout] test metric::test::test_insert ... ok
[INFO] [stdout] test metric::test::test_search ... ok
[INFO] [stdout] test metric::test::test_delete_range_leaf ... ok
[INFO] [stdout] test metric::test::test_search_chars ... ok
[INFO] [stdout] test metric::test::test_split ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 29 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/proptest.rs (/opt/rustwide/target/debug/deps/proptest-03474b4f62a004ad)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test pt_delete ... ok
[INFO] [stdout] test pt_build ... ok
[INFO] [stdout] test pt_insert ... ok
[INFO] [stdout] test pt_combo ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.23s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests text_buffer
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5844699c1b709d40564bf55f87de58bbd4660e127140092ab737a99222248af7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5844699c1b709d40564bf55f87de58bbd4660e127140092ab737a99222248af7", kill_on_drop: false }`
[INFO] [stdout] 5844699c1b709d40564bf55f87de58bbd4660e127140092ab737a99222248af7