[INFO] fetching crate alkahest 0.3.0...
[INFO] checking alkahest-0.3.0 against master#ab869e094a907cc5d19b4080f22eccaf347f1f95 for pr-129604
[INFO] extracting crate alkahest 0.3.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate alkahest 0.3.0 on toolchain ab869e094a907cc5d19b4080f22eccaf347f1f95
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate alkahest 0.3.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate alkahest 0.3.0
[INFO] tweaked toml for crates.io crate alkahest 0.3.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate alkahest 0.3.0 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" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-easy v0.3.0
[INFO] [stderr]   Downloaded alkahest-proc v0.3.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.56
[INFO] [stderr]   Downloaded syn v2.0.13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3a6a19b55ce61ce9a4e7e205b6e1b34aa5a83dbfe9f4ae1ab8a49cd9b8b9b36e
[INFO] running `Command { std: "docker" "start" "-a" "3a6a19b55ce61ce9a4e7e205b6e1b34aa5a83dbfe9f4ae1ab8a49cd9b8b9b36e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a6a19b55ce61ce9a4e7e205b6e1b34aa5a83dbfe9f4ae1ab8a49cd9b8b9b36e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a6a19b55ce61ce9a4e7e205b6e1b34aa5a83dbfe9f4ae1ab8a49cd9b8b9b36e", kill_on_drop: false }`
[INFO] [stdout] 3a6a19b55ce61ce9a4e7e205b6e1b34aa5a83dbfe9f4ae1ab8a49cd9b8b9b36e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+ab869e094a907cc5d19b4080f22eccaf347f1f95" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0e84c4a2f017acb0be9a15c0d6b6a406848d15264ea47052ffc175db79b8d378
[INFO] running `Command { std: "docker" "start" "-a" "0e84c4a2f017acb0be9a15c0d6b6a406848d15264ea47052ffc175db79b8d378", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]     Checking ppv-lite86 v0.2.17
[INFO] [stderr]     Checking alkahest v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/packet.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |         Err(never) => match never {},
[INFO] [stdout]    |         ^^^^^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]    |
[INFO] [stdout]    = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/packet.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         Err(never) => match never {},
[INFO] [stdout]    |         ^^^^^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]    |
[INFO] [stdout]    = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/packet.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |         Err(never) => match never {},
[INFO] [stdout]     |         ^^^^^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]     |
[INFO] [stdout]     = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking getrandom v0.2.8
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/serialize.rs:355:9
[INFO] [stdout]     |
[INFO] [stdout] 355 |         Err(never) => match never {},
[INFO] [stdout]     |         ^^^^^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]     |
[INFO] [stdout]     = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/serialize.rs:402:9
[INFO] [stdout]     |
[INFO] [stdout] 402 |         Err(never) => match never {},
[INFO] [stdout]     |         ^^^^^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]     |
[INFO] [stdout]     = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/serialize.rs:427:9
[INFO] [stdout]     |
[INFO] [stdout] 427 |         Err(never) => match never {},
[INFO] [stdout]     |         ^^^^^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]     |
[INFO] [stdout]     = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/serialize.rs:446:9
[INFO] [stdout]     |
[INFO] [stdout] 446 |         Err(never) => match never {},
[INFO] [stdout]     |         ^^^^^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]     |
[INFO] [stdout]     = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/serialize.rs:643:17
[INFO] [stdout]     |
[INFO] [stdout] 643 |                 Err(never) => match never {},
[INFO] [stdout]     |                 ^^^^^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]     |
[INFO] [stdout]     = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/primitive.rs:160:56
[INFO] [stdout]     |
[INFO] [stdout] 160 |         <u8 as Serialize<u8>>::serialize(u8::from(*self.borrow()), sizes, buffer)
[INFO] [stdout]     |                                                        ^^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `bool` does not implement `Borrow`, so calling `borrow` on `&bool` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/packet.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |         Err(never) => match never {},
[INFO] [stdout]    |         ^^^^^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]    |
[INFO] [stdout]    = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/packet.rs:88:9
[INFO] [stdout]    |
[INFO] [stdout] 88 |         Err(never) => match never {},
[INFO] [stdout]    |         ^^^^^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]    |
[INFO] [stdout]    = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/packet.rs:108:9
[INFO] [stdout]     |
[INFO] [stdout] 108 |         Err(never) => match never {},
[INFO] [stdout]     |         ^^^^^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]     |
[INFO] [stdout]     = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/serialize.rs:355:9
[INFO] [stdout]     |
[INFO] [stdout] 355 |         Err(never) => match never {},
[INFO] [stdout]     |         ^^^^^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]     |
[INFO] [stdout]     = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/serialize.rs:402:9
[INFO] [stdout]     |
[INFO] [stdout] 402 |         Err(never) => match never {},
[INFO] [stdout]     |         ^^^^^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]     |
[INFO] [stdout]     = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/serialize.rs:427:9
[INFO] [stdout]     |
[INFO] [stdout] 427 |         Err(never) => match never {},
[INFO] [stdout]     |         ^^^^^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]     |
[INFO] [stdout]     = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/serialize.rs:446:9
[INFO] [stdout]     |
[INFO] [stdout] 446 |         Err(never) => match never {},
[INFO] [stdout]     |         ^^^^^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]     |
[INFO] [stdout]     = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/serialize.rs:643:17
[INFO] [stdout]     |
[INFO] [stdout] 643 |                 Err(never) => match never {},
[INFO] [stdout]     |                 ^^^^^^^^^^ matches no values because `Infallible` is uninhabited
[INFO] [stdout]     |
[INFO] [stdout]     = note: to learn more about uninhabited types, see https://doc.rust-lang.org/nomicon/exotic-sizes.html#empty-types
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.borrow()` on a reference in this situation does nothing
[INFO] [stdout]    --> src/primitive.rs:160:56
[INFO] [stdout]     |
[INFO] [stdout] 160 |         <u8 as Serialize<u8>>::serialize(u8::from(*self.borrow()), sizes, buffer)
[INFO] [stdout]     |                                                        ^^^^^^^^^ help: remove this redundant call
[INFO] [stdout]     |
[INFO] [stdout]     = note: the type `bool` does not implement `Borrow`, so calling `borrow` on `&bool` copies the reference, which does not do anything and can be removed
[INFO] [stdout]     = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.96s
[INFO] running `Command { std: "docker" "inspect" "0e84c4a2f017acb0be9a15c0d6b6a406848d15264ea47052ffc175db79b8d378", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0e84c4a2f017acb0be9a15c0d6b6a406848d15264ea47052ffc175db79b8d378", kill_on_drop: false }`
[INFO] [stdout] 0e84c4a2f017acb0be9a15c0d6b6a406848d15264ea47052ffc175db79b8d378