[INFO] fetching crate sample-arrow2 0.17.2...
[INFO] testing sample-arrow2-0.17.2 against try#0abe69e6c16114311cc2700e972492e64d69c28f for pr-154065-1
[INFO] extracting crate sample-arrow2 0.17.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate sample-arrow2 0.17.2
[INFO] finished tweaking crates.io crate sample-arrow2 0.17.2
[INFO] tweaked toml for crates.io crate sample-arrow2 0.17.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sample-arrow2 0.17.2 on toolchain 0abe69e6c16114311cc2700e972492e64d69c28f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "generate-lockfile" "--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]      Locking 88 packages to latest compatible versions
[INFO] [stderr]       Adding arrow2 v0.17.4 (available: v0.18.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a06dd68a1136c7152013cc700d8592130bd52670dc8f1ed09bc0c760e0ce3512
[INFO] running `Command { std: "docker" "start" "-a" "a06dd68a1136c7152013cc700d8592130bd52670dc8f1ed09bc0c760e0ce3512", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a06dd68a1136c7152013cc700d8592130bd52670dc8f1ed09bc0c760e0ce3512", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a06dd68a1136c7152013cc700d8592130bd52670dc8f1ed09bc0c760e0ce3512", kill_on_drop: false }`
[INFO] [stdout] a06dd68a1136c7152013cc700d8592130bd52670dc8f1ed09bc0c760e0ce3512
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1166f127c0e55fdf8967855e651c0a7c524ca3e5a6fe1636b906aa3e337fb493
[INFO] running `Command { std: "docker" "start" "-a" "1166f127c0e55fdf8967855e651c0a7c524ca3e5a6fe1636b906aa3e337fb493", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.183
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling memchr v2.8.0
[INFO] [stderr]    Compiling regex-syntax v0.8.10
[INFO] [stderr]    Compiling getrandom v0.4.2
[INFO] [stderr]    Compiling rand_core v0.10.0
[INFO] [stderr]    Compiling semver v1.0.27
[INFO] [stderr]    Compiling zerocopy v0.8.48
[INFO] [stderr]    Compiling getrandom v0.3.4
[INFO] [stderr]    Compiling once_cell v1.21.4
[INFO] [stderr]    Compiling regex-syntax v0.6.29
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]    Compiling either v1.15.0
[INFO] [stderr]    Compiling dyn-clone v1.0.20
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling foreign_vec v0.1.0
[INFO] [stderr]    Compiling ethnum v1.5.2
[INFO] [stderr]    Compiling hash_hasher v2.0.4
[INFO] [stderr]    Compiling simdutf8 v0.1.5
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling arrow2 v0.17.4
[INFO] [stderr]    Compiling aho-corasick v1.1.4
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling chrono v0.4.44
[INFO] [stderr]    Compiling getrandom v0.2.17
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand v0.10.0
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling regex-automata v0.4.14
[INFO] [stderr]    Compiling rand_regex v0.15.1
[INFO] [stderr]    Compiling bytemuck_derive v1.10.2
[INFO] [stderr]    Compiling casey v0.4.2
[INFO] [stderr]    Compiling regex v1.12.3
[INFO] [stderr]    Compiling env_filter v1.0.1
[INFO] [stderr]    Compiling bytemuck v1.25.0
[INFO] [stderr]    Compiling env_logger v0.11.10
[INFO] [stderr]    Compiling quickcheck v1.1.0
[INFO] [stderr]    Compiling sample-std v0.2.1
[INFO] [stderr]    Compiling sample-arrow2 v0.17.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `StructDataTypeSampler` is never constructed
[INFO] [stdout]   --> src/datatypes.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct StructDataTypeSampler<S, F> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:41:15
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn shrink(&self, _: Self::Output) -> Shrunk<Self::Output> {
[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] 41 |     fn shrink(&self, _: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:129:15
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn shrink(&self, array: Self::Output) -> Shrunk<Self::Output> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn shrink(&self, array: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/primitive.rs:180:15
[INFO] [stdout]     |
[INFO] [stdout] 180 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 180 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/primitive.rs:202:15
[INFO] [stdout]     |
[INFO] [stdout] 202 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 202 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/primitive.rs:260:15
[INFO] [stdout]     |
[INFO] [stdout] 260 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 260 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/primitive.rs:291:15
[INFO] [stdout]     |
[INFO] [stdout] 291 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 291 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 24.34s
[INFO] running `Command { std: "docker" "inspect" "1166f127c0e55fdf8967855e651c0a7c524ca3e5a6fe1636b906aa3e337fb493", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1166f127c0e55fdf8967855e651c0a7c524ca3e5a6fe1636b906aa3e337fb493", kill_on_drop: false }`
[INFO] [stdout] 1166f127c0e55fdf8967855e651c0a7c524ca3e5a6fe1636b906aa3e337fb493
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a11ba85cee709e038d2b41d48902749a9a8e4feee5da8612537519e8f51fc706
[INFO] running `Command { std: "docker" "start" "-a" "a11ba85cee709e038d2b41d48902749a9a8e4feee5da8612537519e8f51fc706", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stdout] warning: struct `StructDataTypeSampler` is never constructed
[INFO] [stdout]   --> src/datatypes.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct StructDataTypeSampler<S, F> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:41:15
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn shrink(&self, _: Self::Output) -> Shrunk<Self::Output> {
[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] 41 |     fn shrink(&self, _: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:129:15
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn shrink(&self, array: Self::Output) -> Shrunk<Self::Output> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn shrink(&self, array: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/primitive.rs:180:15
[INFO] [stdout]     |
[INFO] [stdout] 180 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 180 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/primitive.rs:202:15
[INFO] [stdout]     |
[INFO] [stdout] 202 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 202 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/primitive.rs:260:15
[INFO] [stdout]     |
[INFO] [stdout] 260 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 260 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/primitive.rs:291:15
[INFO] [stdout]     |
[INFO] [stdout] 291 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 291 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling sample-test-macros v0.2.1
[INFO] [stderr]    Compiling sample-test v0.2.1
[INFO] [stderr]    Compiling sample-arrow2 v0.17.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `StructDataTypeSampler` is never constructed
[INFO] [stdout]   --> src/datatypes.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | struct StructDataTypeSampler<S, F> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:41:15
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn shrink(&self, _: Self::Output) -> Shrunk<Self::Output> {
[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] 41 |     fn shrink(&self, _: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]    |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:129:15
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn shrink(&self, array: Self::Output) -> Shrunk<Self::Output> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 129 |     fn shrink(&self, array: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/primitive.rs:180:15
[INFO] [stdout]     |
[INFO] [stdout] 180 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 180 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/primitive.rs:202:15
[INFO] [stdout]     |
[INFO] [stdout] 202 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 202 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/primitive.rs:260:15
[INFO] [stdout]     |
[INFO] [stdout] 260 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 260 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/primitive.rs:291:15
[INFO] [stdout]     |
[INFO] [stdout] 291 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[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] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 291 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stdout]     |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 11.06s
[INFO] running `Command { std: "docker" "inspect" "a11ba85cee709e038d2b41d48902749a9a8e4feee5da8612537519e8f51fc706", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a11ba85cee709e038d2b41d48902749a9a8e4feee5da8612537519e8f51fc706", kill_on_drop: false }`
[INFO] [stdout] a11ba85cee709e038d2b41d48902749a9a8e4feee5da8612537519e8f51fc706
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 27251e050ab7ff0a26d150833a659b0d9eaae8d8e48b93c49a609f119e636ed7
[INFO] running `Command { std: "docker" "start" "-a" "27251e050ab7ff0a26d150833a659b0d9eaae8d8e48b93c49a609f119e636ed7", kill_on_drop: false }`
[INFO] [stderr] warning: struct `StructDataTypeSampler` is never constructed
[INFO] [stderr]   --> src/datatypes.rs:30:8
[INFO] [stderr]    |
[INFO] [stderr] 30 | struct StructDataTypeSampler<S, F> {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/lib.rs:41:15
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn shrink(&self, _: Self::Output) -> Shrunk<Self::Output> {
[INFO] [stderr]    |               ^^^^^                      ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |               |
[INFO] [stderr]    |               the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 41 |     fn shrink(&self, _: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stderr]    |                                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/lib.rs:129:15
[INFO] [stderr]     |
[INFO] [stderr] 129 |     fn shrink(&self, array: Self::Output) -> Shrunk<Self::Output> {
[INFO] [stderr]     |               ^^^^^                          ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |               |
[INFO] [stderr]     |               the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 129 |     fn shrink(&self, array: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stderr]     |                                                     +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/primitive.rs:180:15
[INFO] [stderr]     |
[INFO] [stderr] 180 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[INFO] [stderr]     |               ^^^^^                      ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |               |
[INFO] [stderr]     |               the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 180 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stderr]     |                                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/primitive.rs:202:15
[INFO] [stderr]     |
[INFO] [stderr] 202 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[INFO] [stderr]     |               ^^^^^                      ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |               |
[INFO] [stderr]     |               the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 202 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stderr]     |                                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/primitive.rs:260:15
[INFO] [stderr]     |
[INFO] [stderr] 260 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[INFO] [stderr]     |               ^^^^^                      ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |               |
[INFO] [stderr]     |               the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 260 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stderr]     |                                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]    --> src/primitive.rs:291:15
[INFO] [stderr]     |
[INFO] [stderr] 291 |     fn shrink(&self, v: Self::Output) -> Shrunk<Self::Output> {
[INFO] [stderr]     |               ^^^^^                      ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]     |               |
[INFO] [stderr]     |               the lifetime is elided here
[INFO] [stderr]     |
[INFO] [stderr]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]     |
[INFO] [stderr] 291 |     fn shrink(&self, v: Self::Output) -> Shrunk<'_, Self::Output> {
[INFO] [stderr]     |                                                 +++
[INFO] [stderr] 
[INFO] [stderr] warning: `sample-arrow2` (lib) generated 7 warnings (run `cargo fix --lib -p sample-arrow2` to apply 6 suggestions)
[INFO] [stderr] warning: `sample-arrow2` (lib test) generated 7 warnings (7 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/sample_arrow2-7a51cbb754c9344d)
[INFO] [stderr]      Running tests/array.rs (/opt/rustwide/target/debug/deps/array-3ff61343b3cfc6a0)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test primitive::tests::gen_float ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test list_equality ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/chunk.rs (/opt/rustwide/target/debug/deps/chunk-e233f2cc6692c0b3)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test arbitrary_chunk ... ok
[INFO] [stdout] test arbitrary_chunks ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.37s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/fixed_size_list.rs (/opt/rustwide/target/debug/deps/fixed_size_list-71055f688928a890)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test fixed_size_list_equality ... ok
[INFO] [stderr]    Doc-tests sample_arrow2
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[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" "27251e050ab7ff0a26d150833a659b0d9eaae8d8e48b93c49a609f119e636ed7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27251e050ab7ff0a26d150833a659b0d9eaae8d8e48b93c49a609f119e636ed7", kill_on_drop: false }`
[INFO] [stdout] 27251e050ab7ff0a26d150833a659b0d9eaae8d8e48b93c49a609f119e636ed7
