[INFO] fetching crate mc-unified-bookshelf 0.6.5...
[INFO] checking mc-unified-bookshelf-0.6.5 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate mc-unified-bookshelf 0.6.5 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate mc-unified-bookshelf 0.6.5
[INFO] finished tweaking crates.io crate mc-unified-bookshelf 0.6.5
[INFO] tweaked toml for crates.io crate mc-unified-bookshelf 0.6.5 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mc-unified-bookshelf 0.6.5 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 13 packages to latest compatible versions
[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-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] b10b0e31aed9a55632f9242bc7b1c6413e26e8a78ca8f82bc50bb4052666f9d0
[INFO] running `Command { std: "docker" "start" "-a" "b10b0e31aed9a55632f9242bc7b1c6413e26e8a78ca8f82bc50bb4052666f9d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b10b0e31aed9a55632f9242bc7b1c6413e26e8a78ca8f82bc50bb4052666f9d0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b10b0e31aed9a55632f9242bc7b1c6413e26e8a78ca8f82bc50bb4052666f9d0", kill_on_drop: false }`
[INFO] [stdout] b10b0e31aed9a55632f9242bc7b1c6413e26e8a78ca8f82bc50bb4052666f9d0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 9a3a017b199cc252c3768e21013da33cebbdf488e8e8c23e4aac130c0f71d21f
[INFO] running `Command { std: "docker" "start" "-a" "9a3a017b199cc252c3768e21013da33cebbdf488e8e8c23e4aac130c0f71d21f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]    Compiling crc32fast v1.5.0
[INFO] [stderr]     Checking cfg-if v1.0.3
[INFO] [stderr]     Checking residua-cesu8 v2.0.0
[INFO] [stderr]     Checking adler2 v2.0.1
[INFO] [stderr]     Checking miniz_oxide v0.8.9
[INFO] [stderr]     Checking residua-mutf8 v2.0.0
[INFO] [stderr]     Checking flate2 v1.1.2
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking mc-unified-bookshelf v0.6.5 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/nbt/tag.rs:642:20
[INFO] [stdout]     |
[INFO] [stdout] 642 |     pub fn try_get(&self, key: &String) -> Result<Option<&Tag>, TagConversionError> {
[INFO] [stdout]     |                    ^^^^^                                 ----   ------------------ the same lifetime is hidden here
[INFO] [stdout]     |                    |                                     |
[INFO] [stdout]     |                    the lifetime is elided here           the same lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 642 |     pub fn try_get(&self, key: &String) -> Result<Option<&Tag>, TagConversionError<'_>> {
[INFO] [stdout]     |                                                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/nbt/tag.rs:642:20
[INFO] [stdout]     |
[INFO] [stdout] 642 |     pub fn try_get(&self, key: &String) -> Result<Option<&Tag>, TagConversionError> {
[INFO] [stdout]     |                    ^^^^^                                 ----   ------------------ the same lifetime is hidden here
[INFO] [stdout]     |                    |                                     |
[INFO] [stdout]     |                    the lifetime is elided here           the same lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 642 |     pub fn try_get(&self, key: &String) -> Result<Option<&Tag>, TagConversionError<'_>> {
[INFO] [stdout]     |                                                                                   ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.66s
[INFO] running `Command { std: "docker" "inspect" "9a3a017b199cc252c3768e21013da33cebbdf488e8e8c23e4aac130c0f71d21f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a3a017b199cc252c3768e21013da33cebbdf488e8e8c23e4aac130c0f71d21f", kill_on_drop: false }`
[INFO] [stdout] 9a3a017b199cc252c3768e21013da33cebbdf488e8e8c23e4aac130c0f71d21f