[INFO] fetching crate dfkzr 0.1.0...
[INFO] checking dfkzr-0.1.0 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate dfkzr 0.1.0 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate dfkzr 0.1.0
[INFO] finished tweaking crates.io crate dfkzr 0.1.0
[INFO] tweaked toml for crates.io crate dfkzr 0.1.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate dfkzr 0.1.0 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 52 packages to latest compatible versions
[INFO] [stderr]       Adding proptest-derive v0.3.0 (available: v0.6.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6e104197bbc5bc3d42a84108954c34966af5d58031cbfdda5561ee55d3f02544
[INFO] running `Command { std: "docker" "start" "-a" "6e104197bbc5bc3d42a84108954c34966af5d58031cbfdda5561ee55d3f02544", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e104197bbc5bc3d42a84108954c34966af5d58031cbfdda5561ee55d3f02544", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e104197bbc5bc3d42a84108954c34966af5d58031cbfdda5561ee55d3f02544", kill_on_drop: false }`
[INFO] [stdout] 6e104197bbc5bc3d42a84108954c34966af5d58031cbfdda5561ee55d3f02544
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bccb928416d1fbf3d7019397af9951ec61663d87b55af84e4ef4763300906119
[INFO] running `Command { std: "docker" "start" "-a" "bccb928416d1fbf3d7019397af9951ec61663d87b55af84e4ef4763300906119", kill_on_drop: false }`
[INFO] [stderr]     Checking dfkzr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition value: `std`
[INFO] [stdout]  --> src/error.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[cfg(feature = "std")]
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected values for `feature` are: `default` and `proptest`
[INFO] [stdout]   = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `std`
[INFO] [stdout]   --> src/error.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 | #[cfg(feature = "std")]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `default` and `proptest`
[INFO] [stdout]    = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `let...else` pattern
[INFO] [stdout]    --> src/udf64/mod.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let Ok(()) = Self::CHECK_PARAMETERS else { unreachable!() }; // this should be replaced with .from_residual() once stabilized
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `else` clause is useless
[INFO] [stdout]     = help: consider removing the `else` clause
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `let...else` pattern
[INFO] [stdout]    --> src/udf64/mod.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |         let Ok(()) = Self::CHECK_PARAMETERS else { unreachable!() }; // this should be replaced with .from_residual() once stabilized
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `else` clause is useless
[INFO] [stdout]     = help: consider removing the `else` clause
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `std`
[INFO] [stdout]  --> src/error.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[cfg(feature = "std")]
[INFO] [stdout]   |       ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: expected values for `feature` are: `default` and `proptest`
[INFO] [stdout]   = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition value: `std`
[INFO] [stdout]   --> src/error.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 | #[cfg(feature = "std")]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected values for `feature` are: `default` and `proptest`
[INFO] [stdout]    = help: consider adding `std` as a feature in `Cargo.toml`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `let...else` pattern
[INFO] [stdout]    --> src/udf64/mod.rs:116:9
[INFO] [stdout]     |
[INFO] [stdout] 116 |         let Ok(()) = Self::CHECK_PARAMETERS else { unreachable!() }; // this should be replaced with .from_residual() once stabilized
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `else` clause is useless
[INFO] [stdout]     = help: consider removing the `else` clause
[INFO] [stdout]     = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [optimized + debuginfo] target(s) in 0.86s
[INFO] [stdout] warning: irrefutable `let...else` pattern
[INFO] [stdout]    --> src/udf64/mod.rs:132:9
[INFO] [stdout]     |
[INFO] [stdout] 132 |         let Ok(()) = Self::CHECK_PARAMETERS else { unreachable!() }; // this should be replaced with .from_residual() once stabilized
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this pattern will always match, so the `else` clause is useless
[INFO] [stdout]     = help: consider removing the `else` clause
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bccb928416d1fbf3d7019397af9951ec61663d87b55af84e4ef4763300906119", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bccb928416d1fbf3d7019397af9951ec61663d87b55af84e4ef4763300906119", kill_on_drop: false }`
[INFO] [stdout] bccb928416d1fbf3d7019397af9951ec61663d87b55af84e4ef4763300906119