[INFO] cloning repository https://github.com/avl/buf_read_write
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/avl/buf_read_write" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Favl%2Fbuf_read_write", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Favl%2Fbuf_read_write'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 90315ce5d32d59b9303c7ffc9e9de0fa2063f62c
[INFO] checking avl/buf_read_write against try#79452e8441468c5568c20bfca2aa1fe75b645b2d for pr-152210
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Favl%2Fbuf_read_write" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/avl/buf_read_write
[INFO] finished tweaking git repo https://github.com/avl/buf_read_write
[INFO] tweaked toml for git repo https://github.com/avl/buf_read_write written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/avl/buf_read_write on toolchain 79452e8441468c5568c20bfca2aa1fe75b645b2d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/avl/buf_read_write 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" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded mutants v0.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ee804049f9ec3101ec4687c864b2b029f56f6a96fe97e33c7c89631e331c733e
[INFO] running `Command { std: "docker" "start" "-a" "ee804049f9ec3101ec4687c864b2b029f56f6a96fe97e33c7c89631e331c733e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee804049f9ec3101ec4687c864b2b029f56f6a96fe97e33c7c89631e331c733e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee804049f9ec3101ec4687c864b2b029f56f6a96fe97e33c7c89631e331c733e", kill_on_drop: false }`
[INFO] [stdout] ee804049f9ec3101ec4687c864b2b029f56f6a96fe97e33c7c89631e331c733e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6317b89e97eb4dfa06e1645e020a3b8981e4d6a6c6500f32367a37b7c666c70d
[INFO] running `Command { std: "docker" "start" "-a" "6317b89e97eb4dfa06e1645e020a3b8981e4d6a6c6500f32367a37b7c666c70d", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.216
[INFO] [stderr]     Checking plotters-backend v0.3.7
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]     Checking regex-syntax v0.8.5
[INFO] [stderr]     Checking clap_builder v4.5.23
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]    Compiling mutants v0.0.3
[INFO] [stderr]     Checking buf_read_write v0.5.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]     Checking is-terminal v0.4.13
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking plotters-svg v0.3.7
[INFO] [stderr]     Checking plotters v0.3.7
[INFO] [stderr]     Checking regex-automata v0.4.9
[INFO] [stderr]     Checking clap v4.5.23
[INFO] [stderr]    Compiling serde_derive v1.0.216
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]     Checking regex v1.11.1
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking serde_json v1.0.133
[INFO] [stderr]     Checking ciborium v0.2.2
[INFO] [stderr]     Checking tinytemplate v1.2.1
[INFO] [stderr]     Checking criterion v0.5.1
[INFO] [stdout] error[E0599]: no method named `write` found for enum `Result<T, E>` in the current scope
[INFO] [stdout]   --> benches/bufstream_benchmark.rs:10:19
[INFO] [stdout]    |
[INFO] [stdout] 10 |         bufstream.write(&[i]).unwrap();
[INFO] [stdout]    |                   ^^^^^ method not found in `Result<BufStream<std::io::Cursor<Vec<u8>>>, std::io::Error>`
[INFO] [stdout]    |
[INFO] [stdout] note: the method `write` exists on the type `BufStream<std::io::Cursor<Vec<u8>>>`
[INFO] [stdout]   --> /rustc/79452e8441468c5568c20bfca2aa1fe75b645b2d/library/std/src/io/mod.rs:1764:4
[INFO] [stdout] help: consider using `Result::expect` to unwrap the `BufStream<std::io::Cursor<Vec<u8>>>` value, panicking if the value is a `Result::Err`
[INFO] [stdout]    |
[INFO] [stdout] 10 |         bufstream.expect("REASON").write(&[i]).unwrap();
[INFO] [stdout]    |                  +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> benches/bufstream_benchmark.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout]  5 | fn many_small_writes_bufstream() -> BufStream<Cursor<Vec<u8>>> {
[INFO] [stdout]    |                                     -------------------------- expected `BufStream<std::io::Cursor<Vec<u8>>>` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 12 |     bufstream
[INFO] [stdout]    |     ^^^^^^^^^ expected `BufStream<Cursor<Vec<u8>>>`, found `Result<BufStream<Cursor<Vec<u8>>>, ...>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `BufStream<_>`
[INFO] [stdout]                 found enum `Result<BufStream<_>, std::io::Error>`
[INFO] [stdout] help: consider using `Result::expect` to unwrap the `Result<BufStream<std::io::Cursor<Vec<u8>>>, std::io::Error>` value, panicking if the value is a `Result::Err`
[INFO] [stdout]    |
[INFO] [stdout] 12 |     bufstream.expect("REASON")
[INFO] [stdout]    |              +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `read` found for enum `Result<T, E>` in the current scope
[INFO] [stdout]   --> benches/bufstream_benchmark.rs:30:19
[INFO] [stdout]    |
[INFO] [stdout] 30 |         bufstream.read(&mut [0, 1, 2, 3]).unwrap();
[INFO] [stdout]    |                   ^^^^ method not found in `Result<BufStream<std::io::Cursor<Vec<u8>>>, std::io::Error>`
[INFO] [stdout]    |
[INFO] [stdout] note: the method `read` exists on the type `BufStream<std::io::Cursor<Vec<u8>>>`
[INFO] [stdout]   --> /rustc/79452e8441468c5568c20bfca2aa1fe75b645b2d/library/std/src/io/mod.rs:813:4
[INFO] [stdout] help: consider using `Result::expect` to unwrap the `BufStream<std::io::Cursor<Vec<u8>>>` value, panicking if the value is a `Result::Err`
[INFO] [stdout]    |
[INFO] [stdout] 30 |         bufstream.expect("REASON").read(&mut [0, 1, 2, 3]).unwrap();
[INFO] [stdout]    |                  +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> benches/bufstream_benchmark.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | fn many_small_reads_bufstream() -> BufStream<Cursor<Vec<u8>>> {
[INFO] [stdout]    |                                    -------------------------- expected `BufStream<std::io::Cursor<Vec<u8>>>` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 32 |     bufstream
[INFO] [stdout]    |     ^^^^^^^^^ expected `BufStream<Cursor<Vec<u8>>>`, found `Result<BufStream<Cursor<Vec<u8>>>, ...>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `BufStream<_>`
[INFO] [stdout]                 found enum `Result<BufStream<_>, std::io::Error>`
[INFO] [stdout] help: consider using `Result::expect` to unwrap the `Result<BufStream<std::io::Cursor<Vec<u8>>>, std::io::Error>` value, panicking if the value is a `Result::Err`
[INFO] [stdout]    |
[INFO] [stdout] 32 |     bufstream.expect("REASON")
[INFO] [stdout]    |              +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `buf_read_write` (bench "bufstream_benchmark") due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "6317b89e97eb4dfa06e1645e020a3b8981e4d6a6c6500f32367a37b7c666c70d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6317b89e97eb4dfa06e1645e020a3b8981e4d6a6c6500f32367a37b7c666c70d", kill_on_drop: false }`
[INFO] [stdout] 6317b89e97eb4dfa06e1645e020a3b8981e4d6a6c6500f32367a37b7c666c70d
