[INFO] fetching crate servo_arc 0.4.1...
[INFO] building servo_arc-0.4.1 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate servo_arc 0.4.1 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate servo_arc 0.4.1
[INFO] finished tweaking crates.io crate servo_arc 0.4.1
[INFO] tweaked toml for crates.io crate servo_arc 0.4.1 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate servo_arc 0.4.1 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate servo_arc 0.4.1 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "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-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c823c59a1c217b8c208e6953d0feffb80eaed02c98285ba92b1ac922db166331
[INFO] running `Command { std: "docker" "start" "-a" "c823c59a1c217b8c208e6953d0feffb80eaed02c98285ba92b1ac922db166331", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c823c59a1c217b8c208e6953d0feffb80eaed02c98285ba92b1ac922db166331", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c823c59a1c217b8c208e6953d0feffb80eaed02c98285ba92b1ac922db166331", kill_on_drop: false }`
[INFO] [stdout] c823c59a1c217b8c208e6953d0feffb80eaed02c98285ba92b1ac922db166331
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c22ed8c9bdb65154c03664857c899d72c196dc3a11aa182a26073253e917d2e
[INFO] running `Command { std: "docker" "start" "-a" "7c22ed8c9bdb65154c03664857c899d72c196dc3a11aa182a26073253e917d2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling servo_arc v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> lib.rs:1063:19
[INFO] [stdout]      |
[INFO] [stdout] 1063 |     pub fn borrow(&self) -> ArcUnionBorrow<A, B> {
[INFO] [stdout]      |                   ^^^^^     ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]      |                   |
[INFO] [stdout]      |                   the 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] 1063 |     pub fn borrow(&self) -> ArcUnionBorrow<'_, A, B> {
[INFO] [stdout]      |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> lib.rs:1100:21
[INFO] [stdout]      |
[INFO] [stdout] 1100 |     pub fn as_first(&self) -> Option<ArcBorrow<A>> {
[INFO] [stdout]      |                     ^^^^^            ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     the lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1100 |     pub fn as_first(&self) -> Option<ArcBorrow<'_, A>> {
[INFO] [stdout]      |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> lib.rs:1108:22
[INFO] [stdout]      |
[INFO] [stdout] 1108 |     pub fn as_second(&self) -> Option<ArcBorrow<B>> {
[INFO] [stdout]      |                      ^^^^^            ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]      |                      |
[INFO] [stdout]      |                      the lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1108 |     pub fn as_second(&self) -> Option<ArcBorrow<'_, B>> {
[INFO] [stdout]      |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.20s
[INFO] running `Command { std: "docker" "inspect" "7c22ed8c9bdb65154c03664857c899d72c196dc3a11aa182a26073253e917d2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c22ed8c9bdb65154c03664857c899d72c196dc3a11aa182a26073253e917d2e", kill_on_drop: false }`
[INFO] [stdout] 7c22ed8c9bdb65154c03664857c899d72c196dc3a11aa182a26073253e917d2e
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59696b62ed14b4a6c753a5f1d617d4dc25f9cd87e199d4dbbe6af5bb3046242f
[INFO] running `Command { std: "docker" "start" "-a" "59696b62ed14b4a6c753a5f1d617d4dc25f9cd87e199d4dbbe6af5bb3046242f", kill_on_drop: false }`
[INFO] [stderr]    Compiling servo_arc v0.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> lib.rs:1063:19
[INFO] [stdout]      |
[INFO] [stdout] 1063 |     pub fn borrow(&self) -> ArcUnionBorrow<A, B> {
[INFO] [stdout]      |                   ^^^^^     ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]      |                   |
[INFO] [stdout]      |                   the 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] 1063 |     pub fn borrow(&self) -> ArcUnionBorrow<'_, A, B> {
[INFO] [stdout]      |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> lib.rs:1100:21
[INFO] [stdout]      |
[INFO] [stdout] 1100 |     pub fn as_first(&self) -> Option<ArcBorrow<A>> {
[INFO] [stdout]      |                     ^^^^^            ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     the lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1100 |     pub fn as_first(&self) -> Option<ArcBorrow<'_, A>> {
[INFO] [stdout]      |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> lib.rs:1108:22
[INFO] [stdout]      |
[INFO] [stdout] 1108 |     pub fn as_second(&self) -> Option<ArcBorrow<B>> {
[INFO] [stdout]      |                      ^^^^^            ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]      |                      |
[INFO] [stdout]      |                      the lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1108 |     pub fn as_second(&self) -> Option<ArcBorrow<'_, B>> {
[INFO] [stdout]      |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> lib.rs:1063:19
[INFO] [stdout]      |
[INFO] [stdout] 1063 |     pub fn borrow(&self) -> ArcUnionBorrow<A, B> {
[INFO] [stdout]      |                   ^^^^^     ^^^^^^^^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]      |                   |
[INFO] [stdout]      |                   the 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] 1063 |     pub fn borrow(&self) -> ArcUnionBorrow<'_, A, B> {
[INFO] [stdout]      |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> lib.rs:1100:21
[INFO] [stdout]      |
[INFO] [stdout] 1100 |     pub fn as_first(&self) -> Option<ArcBorrow<A>> {
[INFO] [stdout]      |                     ^^^^^            ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]      |                     |
[INFO] [stdout]      |                     the lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1100 |     pub fn as_first(&self) -> Option<ArcBorrow<'_, A>> {
[INFO] [stdout]      |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]     --> lib.rs:1108:22
[INFO] [stdout]      |
[INFO] [stdout] 1108 |     pub fn as_second(&self) -> Option<ArcBorrow<B>> {
[INFO] [stdout]      |                      ^^^^^            ^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]      |                      |
[INFO] [stdout]      |                      the lifetime is elided here
[INFO] [stdout]      |
[INFO] [stdout]      = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]      |
[INFO] [stdout] 1108 |     pub fn as_second(&self) -> Option<ArcBorrow<'_, B>> {
[INFO] [stdout]      |                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.38s
[INFO] running `Command { std: "docker" "inspect" "59696b62ed14b4a6c753a5f1d617d4dc25f9cd87e199d4dbbe6af5bb3046242f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59696b62ed14b4a6c753a5f1d617d4dc25f9cd87e199d4dbbe6af5bb3046242f", kill_on_drop: false }`
[INFO] [stdout] 59696b62ed14b4a6c753a5f1d617d4dc25f9cd87e199d4dbbe6af5bb3046242f
