[INFO] fetching crate stun_codec_blazh 0.1.13...
[INFO] checking stun_codec_blazh-0.1.13 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate stun_codec_blazh 0.1.13 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate stun_codec_blazh 0.1.13
[INFO] finished tweaking crates.io crate stun_codec_blazh 0.1.13
[INFO] tweaked toml for crates.io crate stun_codec_blazh 0.1.13 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate stun_codec_blazh 0.1.13 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "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" "+998b6603a58e47f42ccce7a67943234e96b6839e" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 14 packages to latest compatible versions
[INFO] [stderr]       Adding bytecodec v0.4.15 (available: v0.5.0)
[INFO] [stderr]       Adding crc v1.8.1 (available: v3.3.0)
[INFO] [stderr]       Adding hmac-sha1 v0.1.3 (available: v0.2.2)
[INFO] [stderr]       Adding md5 v0.7.0 (available: v0.8.0)
[INFO] [stderr]       Adding trackable v0.2.24 (available: v1.3.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 87fa68a6126baf9376408355f594a61326c480467688be3e96b54696004abbb9
[INFO] running `Command { std: "docker" "start" "-a" "87fa68a6126baf9376408355f594a61326c480467688be3e96b54696004abbb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "87fa68a6126baf9376408355f594a61326c480467688be3e96b54696004abbb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87fa68a6126baf9376408355f594a61326c480467688be3e96b54696004abbb9", kill_on_drop: false }`
[INFO] [stdout] 87fa68a6126baf9376408355f594a61326c480467688be3e96b54696004abbb9
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8fc72a6a7d088d7bc85554e379a7b6da93b1b94ca76589864d66150cb9544e9d
[INFO] running `Command { std: "docker" "start" "-a" "8fc72a6a7d088d7bc85554e379a7b6da93b1b94ca76589864d66150cb9544e9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling build_const v0.2.2
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking sha1 v0.2.0
[INFO] [stderr]     Checking md5 v0.7.0
[INFO] [stderr]     Checking hmac-sha1 v0.1.3
[INFO] [stderr]    Compiling crc v1.8.1
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling trackable_derive v1.0.0
[INFO] [stderr]     Checking trackable v1.3.0
[INFO] [stderr]     Checking trackable v0.2.24
[INFO] [stderr]     Checking bytecodec v0.4.15
[INFO] [stderr]     Checking stun_codec_blazh v0.1.13 (/opt/rustwide/workdir)
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/macros.rs:18:20
[INFO] [stdout]    |
[INFO] [stdout] 18 |                   if let $attr::$variant(a) = self {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/rfc3489/mod.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / define_attribute_enums!(
[INFO] [stdout] 9  | |     Attribute,
[INFO] [stdout] 10 | |     AttributeDecoder,
[INFO] [stdout] 11 | |     AttributeEncoder,
[INFO] [stdout] 12 | |     [ChangedAddress]
[INFO] [stdout] 13 | | );
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `define_attribute_enums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/macros.rs:18:20
[INFO] [stdout]    |
[INFO] [stdout] 18 |                   if let $attr::$variant(a) = self {
[INFO] [stdout]    |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/rfc3489/mod.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / define_attribute_enums!(
[INFO] [stdout] 9  | |     Attribute,
[INFO] [stdout] 10 | |     AttributeDecoder,
[INFO] [stdout] 11 | |     AttributeEncoder,
[INFO] [stdout] 12 | |     [ChangedAddress]
[INFO] [stdout] 13 | | );
[INFO] [stdout]    | |_- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `define_attribute_enums` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Rfc5389` and `Rfc5766` are never constructed
[INFO] [stdout]   --> src/attribute.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum MyAttribute {
[INFO] [stdout]    |          ----------- variants in this enum
[INFO] [stdout] 12 |     Rfc5389(rfc5389::Attribute),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 13 |     Rfc5766(rfc5766::Attribute),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MyAttribute` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyAttributeDecoder` is never constructed
[INFO] [stdout]   --> src/attribute.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct MyAttributeDecoder {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyAttributeEncoder` is never constructed
[INFO] [stdout]   --> src/attribute.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub struct MyAttributeEncoder {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Rfc5389` and `Rfc5766` are never constructed
[INFO] [stdout]   --> src/attribute.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum MyAttribute {
[INFO] [stdout]    |          ----------- variants in this enum
[INFO] [stdout] 12 |     Rfc5389(rfc5389::Attribute),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 13 |     Rfc5766(rfc5766::Attribute),
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `MyAttribute` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyAttributeDecoder` is never constructed
[INFO] [stdout]   --> src/attribute.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | pub struct MyAttributeDecoder {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MyAttributeEncoder` is never constructed
[INFO] [stdout]   --> src/attribute.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 | pub struct MyAttributeEncoder {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a module
[INFO] [stdout]   --> src/rfc3489/mod.rs:6:1
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub mod attributes;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 | #![warn(missing_docs)]
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: missing documentation for a module
[INFO] [stdout]   --> src/rfc3489/mod.rs:6:1
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub mod attributes;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:83:9
[INFO] [stdout]    |
[INFO] [stdout] 83 | #![warn(missing_docs)]
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.90s
[INFO] running `Command { std: "docker" "inspect" "8fc72a6a7d088d7bc85554e379a7b6da93b1b94ca76589864d66150cb9544e9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fc72a6a7d088d7bc85554e379a7b6da93b1b94ca76589864d66150cb9544e9d", kill_on_drop: false }`
[INFO] [stdout] 8fc72a6a7d088d7bc85554e379a7b6da93b1b94ca76589864d66150cb9544e9d