[INFO] fetching crate untwine 0.8.3...
[INFO] building untwine-0.8.3 against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] extracting crate untwine 0.8.3 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate untwine 0.8.3 on toolchain 44f415c1d617ebc7b931a243b7b321ef8a6ca47c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate untwine 0.8.3
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate untwine 0.8.3
[INFO] tweaked toml for crates.io crate untwine 0.8.3 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate untwine 0.8.3 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" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded untwine_macros v0.8.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a007057dfda5f6291def297b13953b39dbbf1b1d36a5d2bbe35b30fa95dc4789
[INFO] running `Command { std: "docker" "start" "-a" "a007057dfda5f6291def297b13953b39dbbf1b1d36a5d2bbe35b30fa95dc4789", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a007057dfda5f6291def297b13953b39dbbf1b1d36a5d2bbe35b30fa95dc4789", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a007057dfda5f6291def297b13953b39dbbf1b1d36a5d2bbe35b30fa95dc4789", kill_on_drop: false }`
[INFO] [stdout] a007057dfda5f6291def297b13953b39dbbf1b1d36a5d2bbe35b30fa95dc4789
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 17a2e6f7cf9e2729aeb399f5e7820231a6380e395c03b77ab793db43ce3e73df
[INFO] running `Command { std: "docker" "start" "-a" "17a2e6f7cf9e2729aeb399f5e7820231a6380e395c03b77ab793db43ce3e73df", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.53
[INFO] [stderr]    Compiling untwine_macros v0.8.3
[INFO] [stderr]    Compiling untwine v0.8.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/context.rs:76:31
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub(crate) fn lock_errors(&self) -> ErrsLock<C, E> {
[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] 76 |     pub(crate) fn lock_errors(&self) -> ErrsLock<'_, C, E> {
[INFO] [stdout]    |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.50s
[INFO] running `Command { std: "docker" "inspect" "17a2e6f7cf9e2729aeb399f5e7820231a6380e395c03b77ab793db43ce3e73df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17a2e6f7cf9e2729aeb399f5e7820231a6380e395c03b77ab793db43ce3e73df", kill_on_drop: false }`
[INFO] [stdout] 17a2e6f7cf9e2729aeb399f5e7820231a6380e395c03b77ab793db43ce3e73df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4646455ee878e1ebfb020a05c391efb013c46b323d1bd4307f9e0945dcd7b180
[INFO] running `Command { std: "docker" "start" "-a" "4646455ee878e1ebfb020a05c391efb013c46b323d1bd4307f9e0945dcd7b180", kill_on_drop: false }`
[INFO] [stderr]    Compiling thiserror v1.0.58
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/context.rs:76:31
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub(crate) fn lock_errors(&self) -> ErrsLock<C, E> {
[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] 76 |     pub(crate) fn lock_errors(&self) -> ErrsLock<'_, C, E> {
[INFO] [stdout]    |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling thiserror-impl v1.0.58
[INFO] [stderr]    Compiling untwine v0.8.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: lifetime flowing from input to output with different syntax can be confusing
[INFO] [stdout]   --> src/context.rs:76:31
[INFO] [stdout]    |
[INFO] [stdout] 76 |     pub(crate) fn lock_errors(&self) -> ErrsLock<C, E> {
[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] 76 |     pub(crate) fn lock_errors(&self) -> ErrsLock<'_, C, E> {
[INFO] [stdout]    |                                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 5.22s
[INFO] running `Command { std: "docker" "inspect" "4646455ee878e1ebfb020a05c391efb013c46b323d1bd4307f9e0945dcd7b180", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4646455ee878e1ebfb020a05c391efb013c46b323d1bd4307f9e0945dcd7b180", kill_on_drop: false }`
[INFO] [stdout] 4646455ee878e1ebfb020a05c391efb013c46b323d1bd4307f9e0945dcd7b180