[INFO] fetching crate crdt-list 0.4.1...
[INFO] testing crdt-list-0.4.1 against beta-2025-09-21 for beta-1.91-3
[INFO] extracting crate crdt-list 0.4.1 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate crdt-list 0.4.1
[INFO] finished tweaking crates.io crate crdt-list 0.4.1
[INFO] tweaked toml for crates.io crate crdt-list 0.4.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate crdt-list 0.4.1 on toolchain beta-2025-09-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "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" "+beta-2025-09-21" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 40 packages to latest compatible versions
[INFO] [stderr]       Adding backtrace v0.3.71 (available: v0.3.76)
[INFO] [stderr]       Adding color-backtrace v0.5.1 (available: v0.7.1)
[INFO] [stderr]       Adding ctor v0.1.26 (available: v0.5.0)
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-09-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-09-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2299f696adf2a8591c79ef6b42f1a175652055d385130156e707a2870ea70fc2
[INFO] running `Command { std: "docker" "start" "-a" "2299f696adf2a8591c79ef6b42f1a175652055d385130156e707a2870ea70fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2299f696adf2a8591c79ef6b42f1a175652055d385130156e707a2870ea70fc2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2299f696adf2a8591c79ef6b42f1a175652055d385130156e707a2870ea70fc2", kill_on_drop: false }`
[INFO] [stdout] 2299f696adf2a8591c79ef6b42f1a175652055d385130156e707a2870ea70fc2
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-09-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d58755e5fec8a10df65b676d848a05166e69605005cb6cbbe493d64101320163
[INFO] running `Command { std: "docker" "start" "-a" "d58755e5fec8a10df65b676d848a05166e69605005cb6cbbe493d64101320163", kill_on_drop: false }`
[INFO] [stderr]    Compiling arref v0.1.0
[INFO] [stderr]    Compiling crdt-list v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Op` is never constructed
[INFO] [stdout]  --> src/dumb_common.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Op {
[INFO] [stdout]   |            ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OpId` is never constructed
[INFO] [stdout]   --> src/dumb_common.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct OpId {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OpSetImpl` is never constructed
[INFO] [stdout]   --> src/dumb_common.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct OpSetImpl {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Content` is never constructed
[INFO] [stdout]   --> src/dumb_common.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct Content(Vec<Op>);
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `real_len`, `real_index`, `iter_real`, and `iter_real_mut` are never used
[INFO] [stdout]   --> src/dumb_common.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl Content {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] 59 |     pub fn real_len(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub fn real_index(&self, index: usize) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 76 |     pub fn iter_real(&self) -> impl Iterator<Item = &Op> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 80 |     pub fn iter_real_mut(&mut self) -> impl Iterator<Item = &mut Op> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Container` is never constructed
[INFO] [stdout]   --> src/dumb_common.rs:86:12
[INFO] [stdout]    |
[INFO] [stdout] 86 | pub struct Container {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Iter` is never constructed
[INFO] [stdout]   --> src/dumb_common.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub struct Iter<'a> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cursor` is never constructed
[INFO] [stdout]    --> src/dumb_common.rs:104:12
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub struct Cursor<'a> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.33s
[INFO] running `Command { std: "docker" "inspect" "d58755e5fec8a10df65b676d848a05166e69605005cb6cbbe493d64101320163", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d58755e5fec8a10df65b676d848a05166e69605005cb6cbbe493d64101320163", kill_on_drop: false }`
[INFO] [stdout] d58755e5fec8a10df65b676d848a05166e69605005cb6cbbe493d64101320163
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-09-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5a5df2f9b2a1f9ed2ce09dff0426cfbdf90876c89369cf0cecac0dca043fad88
[INFO] running `Command { std: "docker" "start" "-a" "5a5df2f9b2a1f9ed2ce09dff0426cfbdf90876c89369cf0cecac0dca043fad88", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling find-msvc-tools v0.1.2
[INFO] [stderr]    Compiling memchr v2.7.6
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling gimli v0.28.1
[INFO] [stderr]    Compiling rustc-demangle v0.1.26
[INFO] [stderr]    Compiling miniz_oxide v0.7.4
[INFO] [stdout] warning: struct `Op` is never constructed
[INFO] [stdout]  --> src/dumb_common.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Op {
[INFO] [stdout]   |            ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OpId` is never constructed
[INFO] [stdout]   --> src/dumb_common.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct OpId {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OpSetImpl` is never constructed
[INFO] [stdout]   --> src/dumb_common.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct OpSetImpl {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Content` is never constructed
[INFO] [stdout]   --> src/dumb_common.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct Content(Vec<Op>);
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `real_len`, `real_index`, `iter_real`, and `iter_real_mut` are never used
[INFO] [stdout]   --> src/dumb_common.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl Content {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] 59 |     pub fn real_len(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub fn real_index(&self, index: usize) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 76 |     pub fn iter_real(&self) -> impl Iterator<Item = &Op> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 80 |     pub fn iter_real_mut(&mut self) -> impl Iterator<Item = &mut Op> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Container` is never constructed
[INFO] [stdout]   --> src/dumb_common.rs:86:12
[INFO] [stdout]    |
[INFO] [stdout] 86 | pub struct Container {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Iter` is never constructed
[INFO] [stdout]   --> src/dumb_common.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub struct Iter<'a> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cursor` is never constructed
[INFO] [stdout]    --> src/dumb_common.rs:104:12
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub struct Cursor<'a> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling cc v1.2.39
[INFO] [stderr]    Compiling object v0.32.2
[INFO] [stderr]    Compiling quote v1.0.41
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]    Compiling addr2line v0.21.0
[INFO] [stderr]    Compiling ctor v0.1.26
[INFO] [stderr]    Compiling color-backtrace v0.5.1
[INFO] [stderr]    Compiling crdt-list v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Op` is never constructed
[INFO] [stdout]  --> src/dumb_common.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct Op {
[INFO] [stdout]   |            ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OpId` is never constructed
[INFO] [stdout]   --> src/dumb_common.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct OpId {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `OpSetImpl` is never constructed
[INFO] [stdout]   --> src/dumb_common.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct OpSetImpl {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Content` is never constructed
[INFO] [stdout]   --> src/dumb_common.rs:42:12
[INFO] [stdout]    |
[INFO] [stdout] 42 | pub struct Content(Vec<Op>);
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `real_len`, `real_index`, `iter_real`, and `iter_real_mut` are never used
[INFO] [stdout]   --> src/dumb_common.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 58 | impl Content {
[INFO] [stdout]    | ------------ methods in this implementation
[INFO] [stdout] 59 |     pub fn real_len(&self) -> usize {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 63 |     pub fn real_index(&self, index: usize) -> usize {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 76 |     pub fn iter_real(&self) -> impl Iterator<Item = &Op> {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 80 |     pub fn iter_real_mut(&mut self) -> impl Iterator<Item = &mut Op> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Container` is never constructed
[INFO] [stdout]   --> src/dumb_common.rs:86:12
[INFO] [stdout]    |
[INFO] [stdout] 86 | pub struct Container {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Iter` is never constructed
[INFO] [stdout]   --> src/dumb_common.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 | pub struct Iter<'a> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Cursor` is never constructed
[INFO] [stdout]    --> src/dumb_common.rs:104:12
[INFO] [stdout]     |
[INFO] [stdout] 104 | pub struct Cursor<'a> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 8.06s
[INFO] running `Command { std: "docker" "inspect" "5a5df2f9b2a1f9ed2ce09dff0426cfbdf90876c89369cf0cecac0dca043fad88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a5df2f9b2a1f9ed2ce09dff0426cfbdf90876c89369cf0cecac0dca043fad88", kill_on_drop: false }`
[INFO] [stdout] 5a5df2f9b2a1f9ed2ce09dff0426cfbdf90876c89369cf0cecac0dca043fad88
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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" "+beta-2025-09-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 121471176e7d7b03b216e9e737de3f01150263ac2badc972fdb152341d454abb
[INFO] running `Command { std: "docker" "start" "-a" "121471176e7d7b03b216e9e737de3f01150263ac2badc972fdb152341d454abb", kill_on_drop: false }`
[INFO] [stderr] warning: struct `Op` is never constructed
[INFO] [stderr]  --> src/dumb_common.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct Op {
[INFO] [stderr]   |            ^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct `OpId` is never constructed
[INFO] [stderr]   --> src/dumb_common.rs:17:12
[INFO] [stderr]    |
[INFO] [stderr] 17 | pub struct OpId {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `OpSetImpl` is never constructed
[INFO] [stderr]   --> src/dumb_common.rs:23:12
[INFO] [stderr]    |
[INFO] [stderr] 23 | pub struct OpSetImpl {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Content` is never constructed
[INFO] [stderr]   --> src/dumb_common.rs:42:12
[INFO] [stderr]    |
[INFO] [stderr] 42 | pub struct Content(Vec<Op>);
[INFO] [stderr]    |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: methods `real_len`, `real_index`, `iter_real`, and `iter_real_mut` are never used
[INFO] [stderr]   --> src/dumb_common.rs:59:12
[INFO] [stderr]    |
[INFO] [stderr] 58 | impl Content {
[INFO] [stderr]    | ------------ methods in this implementation
[INFO] [stderr] 59 |     pub fn real_len(&self) -> usize {
[INFO] [stderr]    |            ^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 63 |     pub fn real_index(&self, index: usize) -> usize {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 76 |     pub fn iter_real(&self) -> impl Iterator<Item = &Op> {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 80 |     pub fn iter_real_mut(&mut self) -> impl Iterator<Item = &mut Op> {
[INFO] [stderr]    |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Container` is never constructed
[INFO] [stderr]   --> src/dumb_common.rs:86:12
[INFO] [stderr]    |
[INFO] [stderr] 86 | pub struct Container {
[INFO] [stderr]    |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Iter` is never constructed
[INFO] [stderr]   --> src/dumb_common.rs:94:12
[INFO] [stderr]    |
[INFO] [stderr] 94 | pub struct Iter<'a> {
[INFO] [stderr]    |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `Cursor` is never constructed
[INFO] [stderr]    --> src/dumb_common.rs:104:12
[INFO] [stderr]     |
[INFO] [stdout] 
[INFO] [stderr] 104 | pub struct Cursor<'a> {
[INFO] [stdout] running 0 tests
[INFO] [stderr]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stderr] warning: `crdt-list` (lib) generated 8 warnings
[INFO] [stdout] 
[INFO] [stderr] warning: `crdt-list` (lib test) generated 8 warnings (8 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/crdt_list-dacbedc571eaceae)
[INFO] [stderr]    Doc-tests crdt_list
[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" "121471176e7d7b03b216e9e737de3f01150263ac2badc972fdb152341d454abb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "121471176e7d7b03b216e9e737de3f01150263ac2badc972fdb152341d454abb", kill_on_drop: false }`
[INFO] [stdout] 121471176e7d7b03b216e9e737de3f01150263ac2badc972fdb152341d454abb