[INFO] fetching crate sbvc_lib 0.5.3...
[INFO] building sbvc_lib-0.5.3 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate sbvc_lib 0.5.3 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate sbvc_lib 0.5.3
[INFO] finished tweaking crates.io crate sbvc_lib 0.5.3
[INFO] tweaked toml for crates.io crate sbvc_lib 0.5.3 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate sbvc_lib 0.5.3 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 2 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nelf v0.1.0
[INFO] [stderr]   Downloaded wgdiff v0.4.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 34a074e73d65e6206c8a3da2e80f8fa3d754746e8aa62ce74e9322e3f753f8af
[INFO] running `Command { std: "docker" "start" "-a" "34a074e73d65e6206c8a3da2e80f8fa3d754746e8aa62ce74e9322e3f753f8af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "34a074e73d65e6206c8a3da2e80f8fa3d754746e8aa62ce74e9322e3f753f8af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34a074e73d65e6206c8a3da2e80f8fa3d754746e8aa62ce74e9322e3f753f8af", kill_on_drop: false }`
[INFO] [stdout] 34a074e73d65e6206c8a3da2e80f8fa3d754746e8aa62ce74e9322e3f753f8af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] df8a5574ebd216f6941d2a25ddb4f47b2607d1d2b5ec2c12aabc27243409172c
[INFO] running `Command { std: "docker" "start" "-a" "df8a5574ebd216f6941d2a25ddb4f47b2607d1d2b5ec2c12aabc27243409172c", kill_on_drop: false }`
[INFO] [stderr]    Compiling nelf v0.1.0
[INFO] [stderr]    Compiling wgdiff v0.4.3
[INFO] [stderr]    Compiling sbvc_lib v0.5.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:543:23
[INFO] [stdout]     |
[INFO] [stdout] 543 |     pub fn difference(&self) -> Difference<u8> {
[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] 543 |     pub fn difference(&self) -> Difference<'_, u8> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "df8a5574ebd216f6941d2a25ddb4f47b2607d1d2b5ec2c12aabc27243409172c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df8a5574ebd216f6941d2a25ddb4f47b2607d1d2b5ec2c12aabc27243409172c", kill_on_drop: false }`
[INFO] [stdout] df8a5574ebd216f6941d2a25ddb4f47b2607d1d2b5ec2c12aabc27243409172c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23c68aad7c830ee149e7ee69815e0e6e8ae854f86af2e23c823ec78d516a955c
[INFO] running `Command { std: "docker" "start" "-a" "23c68aad7c830ee149e7ee69815e0e6e8ae854f86af2e23c823ec78d516a955c", kill_on_drop: false }`
[INFO] [stderr]    Compiling sbvc_lib v0.5.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:543:23
[INFO] [stdout]     |
[INFO] [stdout] 543 |     pub fn difference(&self) -> Difference<u8> {
[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] 543 |     pub fn difference(&self) -> Difference<'_, u8> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/lib.rs:543:23
[INFO] [stdout]     |
[INFO] [stdout] 543 |     pub fn difference(&self) -> Difference<u8> {
[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] 543 |     pub fn difference(&self) -> Difference<'_, u8> {
[INFO] [stdout]     |                                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "23c68aad7c830ee149e7ee69815e0e6e8ae854f86af2e23c823ec78d516a955c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23c68aad7c830ee149e7ee69815e0e6e8ae854f86af2e23c823ec78d516a955c", kill_on_drop: false }`
[INFO] [stdout] 23c68aad7c830ee149e7ee69815e0e6e8ae854f86af2e23c823ec78d516a955c