[INFO] fetching crate market_square 0.1.0-alpha.2... [INFO] testing market_square-0.1.0-alpha.2 against 1.91.0 for beta-1.92-2 [INFO] extracting crate market_square 0.1.0-alpha.2 into /workspace/builds/worker-6-tc1/source [INFO] started tweaking crates.io crate market_square 0.1.0-alpha.2 [INFO] finished tweaking crates.io crate market_square 0.1.0-alpha.2 [INFO] tweaked toml for crates.io crate market_square 0.1.0-alpha.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] validating manifest of crates.io crate market_square 0.1.0-alpha.2 on toolchain 1.91.0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] crate crates.io crate market_square 0.1.0-alpha.2 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" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Updating crates.io index [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded pollster v0.4.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] d342cc070ca0d9511b49ae427f0426e6aa8aa42c823c76b5da593656b59dcdd2 [INFO] running `Command { std: "docker" "start" "-a" "d342cc070ca0d9511b49ae427f0426e6aa8aa42c823c76b5da593656b59dcdd2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "d342cc070ca0d9511b49ae427f0426e6aa8aa42c823c76b5da593656b59dcdd2", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "d342cc070ca0d9511b49ae427f0426e6aa8aa42c823c76b5da593656b59dcdd2", kill_on_drop: false }` [INFO] [stdout] d342cc070ca0d9511b49ae427f0426e6aa8aa42c823c76b5da593656b59dcdd2 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f384359beab7b396323a090a758bbe70262a312193e840963b3e0340ec747f19 [INFO] running `Command { std: "docker" "start" "-a" "f384359beab7b396323a090a758bbe70262a312193e840963b3e0340ec747f19", kill_on_drop: false }` [INFO] [stderr] Compiling smallvec v1.15.0 [INFO] [stderr] Compiling pollster v0.4.0 [INFO] [stderr] Compiling tokio v1.44.2 [INFO] [stderr] Compiling parking_lot_core v0.9.10 [INFO] [stderr] Compiling parking_lot v0.12.3 [INFO] [stderr] Compiling market_square v0.1.0-alpha.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `drop_tracker` is never read [INFO] [stdout] --> src/lib.rs:209:5 [INFO] [stdout] | [INFO] [stdout] 203 | pub struct MessageConsumer

{ [INFO] [stdout] | --------------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 209 | drop_tracker: Arc<()>, [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:66:17 [INFO] [stdout] | [INFO] [stdout] 66 | pub fn read(&self) -> Option> { [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] 66 | pub fn read(&self) -> Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.36s [INFO] running `Command { std: "docker" "inspect" "f384359beab7b396323a090a758bbe70262a312193e840963b3e0340ec747f19", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f384359beab7b396323a090a758bbe70262a312193e840963b3e0340ec747f19", kill_on_drop: false }` [INFO] [stdout] f384359beab7b396323a090a758bbe70262a312193e840963b3e0340ec747f19 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 898ef29156d6f4f9b5a989576af4df75089ead08bcb1c44fea93d8e44b91d97a [INFO] running `Command { std: "docker" "start" "-a" "898ef29156d6f4f9b5a989576af4df75089ead08bcb1c44fea93d8e44b91d97a", kill_on_drop: false }` [INFO] [stdout] warning: field `drop_tracker` is never read [INFO] [stdout] --> src/lib.rs:209:5 [INFO] [stdout] | [INFO] [stdout] 203 | pub struct MessageConsumer

{ [INFO] [stdout] | --------------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 209 | drop_tracker: Arc<()>, [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:66:17 [INFO] [stdout] | [INFO] [stdout] 66 | pub fn read(&self) -> Option> { [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] 66 | pub fn read(&self) -> Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Compiling market_square v0.1.0-alpha.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `drop_tracker` is never read [INFO] [stdout] --> src/lib.rs:209:5 [INFO] [stdout] | [INFO] [stdout] 203 | pub struct MessageConsumer

{ [INFO] [stdout] | --------------- field in this struct [INFO] [stdout] ... [INFO] [stdout] 209 | drop_tracker: Arc<()>, [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:66:17 [INFO] [stdout] | [INFO] [stdout] 66 | pub fn read(&self) -> Option> { [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] 66 | pub fn read(&self) -> Option> { [INFO] [stdout] | +++ [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.39s [INFO] running `Command { std: "docker" "inspect" "898ef29156d6f4f9b5a989576af4df75089ead08bcb1c44fea93d8e44b91d97a", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "898ef29156d6f4f9b5a989576af4df75089ead08bcb1c44fea93d8e44b91d97a", kill_on_drop: false }` [INFO] [stdout] 898ef29156d6f4f9b5a989576af4df75089ead08bcb1c44fea93d8e44b91d97a [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 91cb50a0573aaa4d70731782da3ad5eee5ea4e8385e2e432dc5d2fb4c21c51fe [INFO] running `Command { std: "docker" "start" "-a" "91cb50a0573aaa4d70731782da3ad5eee5ea4e8385e2e432dc5d2fb4c21c51fe", kill_on_drop: false }` [INFO] [stderr] warning: field `drop_tracker` is never read [INFO] [stderr] --> src/lib.rs:209:5 [INFO] [stderr] | [INFO] [stderr] 203 | pub struct MessageConsumer

{ [INFO] [stderr] | --------------- field in this struct [INFO] [stderr] ... [INFO] [stderr] 209 | drop_tracker: Arc<()>, [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:66:17 [INFO] [stderr] | [INFO] [stderr] 66 | pub fn read(&self) -> Option> { [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] 66 | pub fn read(&self) -> Option> { [INFO] [stderr] | +++ [INFO] [stderr] [INFO] [stderr] warning: `market_square` (lib) generated 2 warnings (run `cargo fix --lib -p market_square` to apply 1 suggestion) [INFO] [stderr] warning: `market_square` (lib test) generated 2 warnings (2 duplicates) [INFO] [stderr] Finished `test` profile [unoptimized + debuginfo] target(s) in 0.07s [INFO] [stderr] Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/market_square-747bbe213079b0bb) [INFO] [stdout] [INFO] [stderr] Doc-tests market_square [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] [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" "91cb50a0573aaa4d70731782da3ad5eee5ea4e8385e2e432dc5d2fb4c21c51fe", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "91cb50a0573aaa4d70731782da3ad5eee5ea4e8385e2e432dc5d2fb4c21c51fe", kill_on_drop: false }` [INFO] [stdout] 91cb50a0573aaa4d70731782da3ad5eee5ea4e8385e2e432dc5d2fb4c21c51fe