[INFO] fetching crate cadence-with-flush 0.29.1...
[INFO] checking cadence-with-flush-0.29.1 against master#80399064afa4a2cd153f30d02c25f7ea0383ed65 for opaque-soundness-fix
[INFO] extracting crate cadence-with-flush 0.29.1 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate cadence-with-flush 0.29.1 on toolchain 80399064afa4a2cd153f30d02c25f7ea0383ed65
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cadence-with-flush 0.29.1
[INFO] finished tweaking crates.io crate cadence-with-flush 0.29.1
[INFO] tweaked toml for crates.io crate cadence-with-flush 0.29.1 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate crates.io crate cadence-with-flush 0.29.1 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" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18ad071b7c393c264b9f335a2327207def3a289e939be4de464ac564d4f569f5
[INFO] running `Command { std: "docker" "start" "-a" "18ad071b7c393c264b9f335a2327207def3a289e939be4de464ac564d4f569f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18ad071b7c393c264b9f335a2327207def3a289e939be4de464ac564d4f569f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18ad071b7c393c264b9f335a2327207def3a289e939be4de464ac564d4f569f5", kill_on_drop: false }`
[INFO] [stdout] 18ad071b7c393c264b9f335a2327207def3a289e939be4de464ac564d4f569f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+80399064afa4a2cd153f30d02c25f7ea0383ed65" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9d6d767b42ad4028c766dc4cc3c07a4869436ed150dbc1a8fca26ea6c5a96d69
[INFO] running `Command { std: "docker" "start" "-a" "9d6d767b42ad4028c766dc4cc3c07a4869436ed150dbc1a8fca26ea6c5a96d69", kill_on_drop: false }`
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]     Checking crossbeam-channel v0.5.4
[INFO] [stderr]     Checking cadence-with-flush v0.29.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `crossbeam_channel` is imported redundantly
[INFO] [stdout]   --> src/sinks/queuing.rs:12:25
[INFO] [stdout]    |
[INFO] [stdout] 12 | use crossbeam_channel::{self, Receiver, Sender, TrySendError};
[INFO] [stdout]    |                         ^^^^ the item `crossbeam_channel` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `crossbeam_channel` is imported redundantly
[INFO] [stdout]   --> src/sinks/queuing.rs:12:25
[INFO] [stdout]    |
[INFO] [stdout] 12 | use crossbeam_channel::{self, Receiver, Sender, TrySendError};
[INFO] [stdout]    |                         ^^^^ the item `crossbeam_channel` is already defined here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `cadence`
[INFO] [stdout]  --> tests/compat.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use cadence::prelude::*;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `cadence`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `cadence`
[INFO] [stdout]  --> tests/utils.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use cadence::prelude::*;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `cadence`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `cadence`
[INFO] [stdout]   --> examples/production-sink.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use cadence::prelude::*;
[INFO] [stdout]    |     ^^^^^^^ use of undeclared crate or module `cadence`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `cadence`
[INFO] [stdout]  --> tests/core.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use cadence::prelude::*;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `cadence`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `cadence`
[INFO] [stdout]  --> tests/utils.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use cadence::prelude::*;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `cadence`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `cadence`
[INFO] [stdout]   --> examples/custom-value-type.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use cadence::prelude::*;
[INFO] [stdout]    |     ^^^^^^^ use of undeclared crate or module `cadence`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `cadence`
[INFO] [stdout]  --> tests/utils.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use cadence::StatsdClient;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `cadence`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `cadence`
[INFO] [stdout]  --> tests/compat.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use cadence::{Gauge, Histogram, Meter, NopMetricSink, StatsdClient, Timer};
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `cadence`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `cadence`
[INFO] [stdout]   --> examples/custom-value-type.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use cadence::ext::{MetricValue, ToGaugeValue};
[INFO] [stdout]    |     ^^^^^^^ use of undeclared crate or module `cadence`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `cadence`
[INFO] [stdout]   --> examples/production-sink.rs:16:5
[INFO] [stdout]    |
[INFO] [stdout] 16 | use cadence::{BufferedUdpMetricSink, QueuingMetricSink, StatsdClient, DEFAULT_PORT};
[INFO] [stdout]    |     ^^^^^^^ use of undeclared crate or module `cadence`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `cadence`
[INFO] [stdout]  --> tests/core.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use cadence::{Counter, Gauge, Histogram, Meter, NopMetricSink, StatsdClient, Timer};
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `cadence`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `cadence`
[INFO] [stdout]  --> tests/utils.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use cadence::StatsdClient;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `cadence`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `cadence`
[INFO] [stdout]   --> examples/custom-value-type.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use cadence::{MetricResult, NopMetricSink, StatsdClient};
[INFO] [stdout]    |     ^^^^^^^ use of undeclared crate or module `cadence`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `cadence`
[INFO] [stdout]   --> examples/value-packing.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use cadence::prelude::*;
[INFO] [stdout]    |     ^^^^^^^ use of undeclared crate or module `cadence`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `cadence`
[INFO] [stdout]   --> examples/value-packing.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use cadence::{MetricError, NopMetricSink, StatsdClient};
[INFO] [stdout]    |     ^^^^^^^ use of undeclared crate or module `cadence`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `cadence`
[INFO] [stdout]  --> tests/unix.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use cadence::test::UnixServerHarness;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `cadence`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cadence-with-flush` (example "custom-value-type") due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `cadence-with-flush` (example "production-sink") due to 3 previous errors
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared crate or module `cadence`
[INFO] [stdout]  --> tests/utils.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use cadence::prelude::*;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `cadence`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `cadence`
[INFO] [stdout]  --> tests/unix.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use cadence::{BufferedUnixMetricSink, QueuingMetricSink, StatsdClient, UnixMetricSink};
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `cadence`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `cadence`
[INFO] [stdout]  --> tests/utils.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use cadence::StatsdClient;
[INFO] [stdout]   |     ^^^^^^^ use of undeclared crate or module `cadence`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cadence-with-flush` (example "value-packing") due to 3 previous errors
[INFO] [stderr] error: could not compile `cadence-with-flush` (test "compat") due to 3 previous errors
[INFO] [stderr] error: could not compile `cadence-with-flush` (test "utils") due to 3 previous errors
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cadence-with-flush` (test "core") due to 5 previous errors
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cadence-with-flush` (test "unix") due to 5 previous errors
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9d6d767b42ad4028c766dc4cc3c07a4869436ed150dbc1a8fca26ea6c5a96d69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d6d767b42ad4028c766dc4cc3c07a4869436ed150dbc1a8fca26ea6c5a96d69", kill_on_drop: false }`
[INFO] [stdout] 9d6d767b42ad4028c766dc4cc3c07a4869436ed150dbc1a8fca26ea6c5a96d69
