[INFO] fetching crate libkrb5 0.0.3...
[INFO] testing libkrb5-0.0.3 against master#733b47ea4b1b86216f14ef56e49440c33933f230+rustflags=-Copt-level=3 for pr-138759
[INFO] extracting crate libkrb5 0.0.3 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate libkrb5 0.0.3
[INFO] finished tweaking crates.io crate libkrb5 0.0.3
[INFO] tweaked toml for crates.io crate libkrb5 0.0.3 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate libkrb5 0.0.3 on toolchain 733b47ea4b1b86216f14ef56e49440c33933f230
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "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" "+733b47ea4b1b86216f14ef56e49440c33933f230" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 61 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b537d76abe770db59a8a16a1c8232cf6f53e68c5784c6e8ea53b0ae057fb4cf8
[INFO] running `Command { std: "docker" "start" "-a" "b537d76abe770db59a8a16a1c8232cf6f53e68c5784c6e8ea53b0ae057fb4cf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b537d76abe770db59a8a16a1c8232cf6f53e68c5784c6e8ea53b0ae057fb4cf8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b537d76abe770db59a8a16a1c8232cf6f53e68c5784c6e8ea53b0ae057fb4cf8", kill_on_drop: false }`
[INFO] [stdout] b537d76abe770db59a8a16a1c8232cf6f53e68c5784c6e8ea53b0ae057fb4cf8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9382e492511ad066413642bd234418375572ae59207b457b95dc4658205212ee
[INFO] running `Command { std: "docker" "start" "-a" "9382e492511ad066413642bd234418375572ae59207b457b95dc4658205212ee", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.177
[INFO] [stderr]    Compiling bindgen v0.59.2
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling rustix v0.38.44
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clang-sys v1.8.1
[INFO] [stderr]    Compiling clap v2.34.0
[INFO] [stderr]    Compiling cexpr v0.6.0
[INFO] [stderr]    Compiling which v4.4.2
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling env_logger v0.9.3
[INFO] [stderr]    Compiling libkrb5-sys v0.0.3
[INFO] [stderr]    Compiling libkrb5 v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `context` is never read
[INFO] [stdout]   --> src/principal.rs:34:16
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct Krb5PrincipalData<'a> {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 34 |     pub(crate) context: &'a Krb5Context,
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Krb5PrincipalData` 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: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/ccache.rs:26:29
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn default(context: &Krb5Context) -> Result<Krb5CCache, Krb5Error> {
[INFO] [stdout]    |                             ^^^^^^^^^^^^            ---------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn default(context: &Krb5Context) -> Result<Krb5CCache<'_>, Krb5Error> {
[INFO] [stdout]    |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/ccache.rs:55:16
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn dup(&self) -> Result<Krb5CCache, Krb5Error> {
[INFO] [stdout]    |                ^^^^^            ---------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                |
[INFO] [stdout]    |                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn dup(&self) -> Result<Krb5CCache<'_>, Krb5Error> {
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/ccache.rs:76:26
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn get_principal(&self) -> Result<Option<Krb5Principal>, Krb5Error> {
[INFO] [stdout]    |                          ^^^^^                   ------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn get_principal(&self) -> Result<Option<Krb5Principal<'_>>, Krb5Error> {
[INFO] [stdout]    |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/cccol.rs:16:25
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(context: &Krb5Context) -> Result<Krb5CCCol, Krb5Error> {
[INFO] [stdout]    |                         ^^^^^^^^^^^^            --------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(context: &Krb5Context) -> Result<Krb5CCCol<'_>, Krb5Error> {
[INFO] [stdout]    |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/principal.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn data(&self) -> Krb5PrincipalData {
[INFO] [stdout]    |                 ^^^^^     ----------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn data(&self) -> Krb5PrincipalData<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 42.52s
[INFO] running `Command { std: "docker" "inspect" "9382e492511ad066413642bd234418375572ae59207b457b95dc4658205212ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9382e492511ad066413642bd234418375572ae59207b457b95dc4658205212ee", kill_on_drop: false }`
[INFO] [stdout] 9382e492511ad066413642bd234418375572ae59207b457b95dc4658205212ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f8df1a51d7526771daf176e927c3950bef871fdf591fc9853e9042dffa0a818
[INFO] running `Command { std: "docker" "start" "-a" "6f8df1a51d7526771daf176e927c3950bef871fdf591fc9853e9042dffa0a818", kill_on_drop: false }`
[INFO] [stderr]    Compiling libkrb5 v0.0.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `context` is never read
[INFO] [stdout]   --> src/principal.rs:34:16
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct Krb5PrincipalData<'a> {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 34 |     pub(crate) context: &'a Krb5Context,
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Krb5PrincipalData` 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: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/ccache.rs:26:29
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn default(context: &Krb5Context) -> Result<Krb5CCache, Krb5Error> {
[INFO] [stdout]    |                             ^^^^^^^^^^^^            ---------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn default(context: &Krb5Context) -> Result<Krb5CCache<'_>, Krb5Error> {
[INFO] [stdout]    |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/ccache.rs:55:16
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn dup(&self) -> Result<Krb5CCache, Krb5Error> {
[INFO] [stdout]    |                ^^^^^            ---------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                |
[INFO] [stdout]    |                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn dup(&self) -> Result<Krb5CCache<'_>, Krb5Error> {
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/ccache.rs:76:26
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn get_principal(&self) -> Result<Option<Krb5Principal>, Krb5Error> {
[INFO] [stdout]    |                          ^^^^^                   ------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn get_principal(&self) -> Result<Option<Krb5Principal<'_>>, Krb5Error> {
[INFO] [stdout]    |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/cccol.rs:16:25
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(context: &Krb5Context) -> Result<Krb5CCCol, Krb5Error> {
[INFO] [stdout]    |                         ^^^^^^^^^^^^            --------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(context: &Krb5Context) -> Result<Krb5CCCol<'_>, Krb5Error> {
[INFO] [stdout]    |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/principal.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn data(&self) -> Krb5PrincipalData {
[INFO] [stdout]    |                 ^^^^^     ----------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn data(&self) -> Krb5PrincipalData<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `context` is never read
[INFO] [stdout]   --> src/principal.rs:34:16
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct Krb5PrincipalData<'a> {
[INFO] [stdout]    |            ----------------- field in this struct
[INFO] [stdout] 34 |     pub(crate) context: &'a Krb5Context,
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Krb5PrincipalData` 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: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/ccache.rs:26:29
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn default(context: &Krb5Context) -> Result<Krb5CCache, Krb5Error> {
[INFO] [stdout]    |                             ^^^^^^^^^^^^            ---------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                             |
[INFO] [stdout]    |                             this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn default(context: &Krb5Context) -> Result<Krb5CCache<'_>, Krb5Error> {
[INFO] [stdout]    |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/ccache.rs:55:16
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn dup(&self) -> Result<Krb5CCache, Krb5Error> {
[INFO] [stdout]    |                ^^^^^            ---------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                |
[INFO] [stdout]    |                this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn dup(&self) -> Result<Krb5CCache<'_>, Krb5Error> {
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/ccache.rs:76:26
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn get_principal(&self) -> Result<Option<Krb5Principal>, Krb5Error> {
[INFO] [stdout]    |                          ^^^^^                   ------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                          |
[INFO] [stdout]    |                          this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub fn get_principal(&self) -> Result<Option<Krb5Principal<'_>>, Krb5Error> {
[INFO] [stdout]    |                                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/cccol.rs:16:25
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(context: &Krb5Context) -> Result<Krb5CCCol, Krb5Error> {
[INFO] [stdout]    |                         ^^^^^^^^^^^^            --------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub fn new(context: &Krb5Context) -> Result<Krb5CCCol<'_>, Krb5Error> {
[INFO] [stdout]    |                                                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/principal.rs:24:17
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn data(&self) -> Krb5PrincipalData {
[INFO] [stdout]    |                 ^^^^^     ----------------- the lifetime gets resolved as `'_`
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 this lifetime flows to the output
[INFO] [stdout]    |
[INFO] [stdout] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stdout]    |
[INFO] [stdout] 24 |     pub fn data(&self) -> Krb5PrincipalData<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "6f8df1a51d7526771daf176e927c3950bef871fdf591fc9853e9042dffa0a818", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f8df1a51d7526771daf176e927c3950bef871fdf591fc9853e9042dffa0a818", kill_on_drop: false }`
[INFO] [stdout] 6f8df1a51d7526771daf176e927c3950bef871fdf591fc9853e9042dffa0a818
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+733b47ea4b1b86216f14ef56e49440c33933f230" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 74734ef873582f93a462b28f4b76fe3369cfc3db47bbf49aebf9081e335e757f
[INFO] running `Command { std: "docker" "start" "-a" "74734ef873582f93a462b28f4b76fe3369cfc3db47bbf49aebf9081e335e757f", kill_on_drop: false }`
[INFO] [stderr] warning: field `context` is never read
[INFO] [stderr]   --> src/principal.rs:34:16
[INFO] [stderr]    |
[INFO] [stderr] 33 | pub struct Krb5PrincipalData<'a> {
[INFO] [stderr]    |            ----------------- field in this struct
[INFO] [stderr] 34 |     pub(crate) context: &'a Krb5Context,
[INFO] [stderr]    |                ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Krb5PrincipalData` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> src/ccache.rs:26:29
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn default(context: &Krb5Context) -> Result<Krb5CCache, Krb5Error> {
[INFO] [stderr]    |                             ^^^^^^^^^^^^            ---------- the lifetime gets resolved as `'_`
[INFO] [stderr]    |                             |
[INFO] [stderr]    |                             this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 26 |     pub fn default(context: &Krb5Context) -> Result<Krb5CCache<'_>, Krb5Error> {
[INFO] [stderr]    |                                                               ++++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> src/ccache.rs:55:16
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn dup(&self) -> Result<Krb5CCache, Krb5Error> {
[INFO] [stderr]    |                ^^^^^            ---------- the lifetime gets resolved as `'_`
[INFO] [stderr]    |                |
[INFO] [stderr]    |                this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 55 |     pub fn dup(&self) -> Result<Krb5CCache<'_>, Krb5Error> {
[INFO] [stderr]    |                                           ++++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> src/ccache.rs:76:26
[INFO] [stderr]    |
[INFO] [stderr] 76 |     pub fn get_principal(&self) -> Result<Option<Krb5Principal>, Krb5Error> {
[INFO] [stderr]    |                          ^^^^^                   ------------- the lifetime gets resolved as `'_`
[INFO] [stderr]    |                          |
[INFO] [stderr]    |                          this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 76 |     pub fn get_principal(&self) -> Result<Option<Krb5Principal<'_>>, Krb5Error> {
[INFO] [stderr]    |                                                               ++++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> src/cccol.rs:16:25
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn new(context: &Krb5Context) -> Result<Krb5CCCol, Krb5Error> {
[INFO] [stderr]    |                         ^^^^^^^^^^^^            --------- the lifetime gets resolved as `'_`
[INFO] [stderr]    |                         |
[INFO] [stderr]    |                         this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn new(context: &Krb5Context) -> Result<Krb5CCCol<'_>, Krb5Error> {
[INFO] [stderr]    |                                                          ++++
[INFO] [stderr] 
[INFO] [stderr] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stderr]   --> src/principal.rs:24:17
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn data(&self) -> Krb5PrincipalData {
[INFO] [stderr]    |                 ^^^^^     ----------------- the lifetime gets resolved as `'_`
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 this lifetime flows to the output
[INFO] [stderr]    |
[INFO] [stderr] help: one option is to remove the lifetime for references and use the anonymous lifetime for paths
[INFO] [stderr]    |
[INFO] [stderr] 24 |     pub fn data(&self) -> Krb5PrincipalData<'_> {
[INFO] [stderr]    |                                            ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `libkrb5` (lib) generated 6 warnings
[INFO] [stderr] warning: `libkrb5` (lib test) generated 6 warnings (6 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/libkrb5-1b149832b3012ee1)
[INFO] [stdout] 
[INFO] [stdout] running 8 tests
[INFO] [stdout] test tests::cccol_get_principal ... ok
[INFO] [stdout] test tests::cccol_iterate ... ok
[INFO] [stdout] test tests::cccol_new ... ok
[INFO] [stdout] test tests::init ... ok
[INFO] [stdout] test tests::init_secure ... ok
[INFO] [stdout] test tests::is_thread_safe ... ok
[INFO] [stdout] test tests::get_default_realm ... ok
[INFO] [stdout] test tests::get_host_realms ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- tests::get_host_realms stdout ----
[INFO] [stdout] 
[INFO] [stdout] thread 'tests::get_host_realms' panicked at src/tests.rs:28:49:
[INFO] [stdout] called `Result::unwrap()` on an `Err` value: LibraryError { message: "Resource temporarily unavailable" }
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5ab600753852 - std::backtrace_rs::backtrace::libunwind::trace::h73a647620bf1c49d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stdout]    1:     0x5ab600753852 - std::backtrace_rs::backtrace::trace_unsynchronized::hd4d513ed96cb3cb1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stdout]    2:     0x5ab600753852 - std::sys::backtrace::_print_fmt::h61bb95f7476aafa5
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:66:9
[INFO] [stdout]    3:     0x5ab600753852 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::ha2e7e3a01df69042
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:39:26
[INFO] [stdout]    4:     0x5ab600778e13 - core::fmt::rt::Argument::fmt::hf14163372f0f9a76
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/rt.rs:173:76
[INFO] [stdout]    5:     0x5ab600778e13 - core::fmt::write::h7cb8f63788cd01d2
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/fmt/mod.rs:1465:25
[INFO] [stdout]    6:     0x5ab6007507e3 - std::io::default_write_fmt::h9ed739ccee8a150c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:639:11
[INFO] [stdout]    7:     0x5ab6007507e3 - std::io::Write::write_fmt::h1c0a32da913b32f1
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/io/mod.rs:1954:13
[INFO] [stdout]    8:     0x5ab6007536a2 - std::sys::backtrace::BacktraceLock::print::h3ec4d7883eb25e61
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:42:9
[INFO] [stdout]    9:     0x5ab600754dbc - std::panicking::default_hook::{{closure}}::h29548987efd832cb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:300:27
[INFO] [stdout]   10:     0x5ab600754c12 - std::panicking::default_hook::ha25170a15c643514
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:324:9
[INFO] [stdout]   11:     0x5ab60071cd34 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h562adeecbf43c420
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   12:     0x5ab60071cd34 - test::test_main_with_exit_callback::{{closure}}::h97dd2a879d27e0e4
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:145:21
[INFO] [stdout]   13:     0x5ab60075579b - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h7e85cbdbda26fdb7
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1985:9
[INFO] [stdout]   14:     0x5ab60075579b - std::panicking::rust_panic_with_hook::h0d81afcd829aa24b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:841:13
[INFO] [stdout]   15:     0x5ab60075556a - std::panicking::begin_panic_handler::{{closure}}::hc84a33f1202346cf
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:706:13
[INFO] [stdout]   16:     0x5ab600753d49 - std::sys::backtrace::__rust_end_short_backtrace::h373067a14f6c59aa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:168:18
[INFO] [stdout]   17:     0x5ab6007551fd - __rustc[beb0385846a06d21]::rust_begin_unwind
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:697:5
[INFO] [stdout]   18:     0x5ab600777990 - core::panicking::panic_fmt::ha33fa2ae772efba9
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panicking.rs:75:14
[INFO] [stdout]   19:     0x5ab600777d06 - core::result::unwrap_failed::hfbbd3c78a73fea3d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/result.rs:1761:5
[INFO] [stdout]   20:     0x5ab6006e2ed8 - core::result::Result<T,E>::unwrap::h298e0dffc2755f65
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/result.rs:1167:23
[INFO] [stdout]   21:     0x5ab6006e2ed8 - libkrb5::tests::get_host_realms::h218a91b9d1492290
[INFO] [stdout]                                at /opt/rustwide/workdir/src/tests.rs:28:49
[INFO] [stdout]   22:     0x5ab6006e16b9 - libkrb5::tests::get_host_realms::{{closure}}::h650a58008dffb44c
[INFO] [stdout]                                at /opt/rustwide/workdir/src/tests.rs:26:21
[INFO] [stdout]   23:     0x5ab6006e16b9 - core::ops::function::FnOnce::call_once::hf4301d99bfc68876
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   24:     0x5ab60072246b - core::ops::function::FnOnce::call_once::hf84b9c3d864a6959
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   25:     0x5ab60072246b - test::__rust_begin_short_backtrace::h5724e31441c16fcb
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:648:18
[INFO] [stdout]   26:     0x5ab6007216ae - test::run_test_in_process::{{closure}}::hbc28c9aa91793d7d
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:74
[INFO] [stdout]   27:     0x5ab6007216ae - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc17b0e238c0f8f3e
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   28:     0x5ab6007216ae - std::panicking::catch_unwind::do_call::hcdbce0d6dd6c83ce
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   29:     0x5ab6007216ae - std::panicking::catch_unwind::h9477967ceea044e8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   30:     0x5ab6007216ae - std::panic::catch_unwind::h616a2e249da12e16
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   31:     0x5ab6007216ae - test::run_test_in_process::h2758deb0f2e54430
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:671:27
[INFO] [stdout]   32:     0x5ab6007216ae - test::run_test::{{closure}}::habe5cd2564b18aaa
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:592:43
[INFO] [stdout]   33:     0x5ab6006e5254 - test::run_test::{{closure}}::h9a0a6928f1a15421
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/test/src/lib.rs:622:41
[INFO] [stdout]   34:     0x5ab6006e5254 - std::sys::backtrace::__rust_begin_short_backtrace::hd68b5332434a22ca
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/backtrace.rs:152:18
[INFO] [stdout]   35:     0x5ab6006e8bfa - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h264ddcc3098eacae
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:559:17
[INFO] [stdout]   36:     0x5ab6006e8bfa - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9fa39489749d6f3c
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stdout]   37:     0x5ab6006e8bfa - std::panicking::catch_unwind::do_call::hb9a1944b9f85100f
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:589:40
[INFO] [stdout]   38:     0x5ab6006e8bfa - std::panicking::catch_unwind::h0c6f100786c0dad8
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panicking.rs:552:19
[INFO] [stdout]   39:     0x5ab6006e8bfa - std::panic::catch_unwind::hf6084e2723385823
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/panic.rs:359:14
[INFO] [stdout]   40:     0x5ab6006e8bfa - std::thread::Builder::spawn_unchecked_::{{closure}}::hf0af58ce658143ad
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/thread/mod.rs:557:30
[INFO] [stdout]   41:     0x5ab6006e8bfa - core::ops::function::FnOnce::call_once{{vtable.shim}}::h88a14f9b2e79f9de
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/core/src/ops/function.rs:250:5
[INFO] [stdout]   42:     0x5ab6007586f7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf31256ba38644b65
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   43:     0x5ab6007586f7 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h100ad77f3448041b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/alloc/src/boxed.rs:1971:9
[INFO] [stdout]   44:     0x5ab6007586f7 - std::sys::pal::unix::thread::Thread::new::thread_start::h1a22ded422ce395b
[INFO] [stdout]                                at /rustc/733b47ea4b1b86216f14ef56e49440c33933f230/library/std/src/sys/pal/unix/thread.rs:97:17
[INFO] [stdout]   45:     0x743f7d304aa4 - <unknown>
[INFO] [stdout]   46:     0x743f7d391a34 - clone
[INFO] [stdout]   47:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     tests::get_host_realms
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 7 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.04s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] running `Command { std: "docker" "inspect" "74734ef873582f93a462b28f4b76fe3369cfc3db47bbf49aebf9081e335e757f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74734ef873582f93a462b28f4b76fe3369cfc3db47bbf49aebf9081e335e757f", kill_on_drop: false }`
[INFO] [stdout] 74734ef873582f93a462b28f4b76fe3369cfc3db47bbf49aebf9081e335e757f
