[INFO] fetching crate stack-db 0.3.5...
[INFO] building stack-db-0.3.5 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate stack-db 0.3.5 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate stack-db 0.3.5
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate stack-db 0.3.5
[INFO] tweaked toml for crates.io crate stack-db 0.3.5 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate stack-db 0.3.5 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] crate crates.io crate stack-db 0.3.5 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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] 5079293a8b74ae91a1af09d050bcbc0360ca4a3421b028a27951475cdca9e8f9
[INFO] running `Command { std: "docker" "start" "-a" "5079293a8b74ae91a1af09d050bcbc0360ca4a3421b028a27951475cdca9e8f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5079293a8b74ae91a1af09d050bcbc0360ca4a3421b028a27951475cdca9e8f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5079293a8b74ae91a1af09d050bcbc0360ca4a3421b028a27951475cdca9e8f9", kill_on_drop: false }`
[INFO] [stdout] 5079293a8b74ae91a1af09d050bcbc0360ca4a3421b028a27951475cdca9e8f9
[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] 5e13010201027b925fc711e2cd995f294b3cd8c394d5a366d6f1c7f8818c4844
[INFO] running `Command { std: "docker" "start" "-a" "5e13010201027b925fc711e2cd995f294b3cd8c394d5a366d6f1c7f8818c4844", kill_on_drop: false }`
[INFO] [stderr]    Compiling stack-db v0.3.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/base/layer.rs:123:27
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub fn read_unchecked(&mut self, addr: &Range<u64>) -> Result<(Range<usize>, Cow<[u8]>), Error> {
[INFO] [stdout]     |                           ^^^^^^^^^ the lifetime is elided here                  ^^^^^^^^^ the same lifetime is hidden 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] 123 |     pub fn read_unchecked(&mut self, addr: &Range<u64>) -> Result<(Range<usize>, Cow<'_, [u8]>), Error> {
[INFO] [stdout]     |                                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.01s
[INFO] running `Command { std: "docker" "inspect" "5e13010201027b925fc711e2cd995f294b3cd8c394d5a366d6f1c7f8818c4844", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e13010201027b925fc711e2cd995f294b3cd8c394d5a366d6f1c7f8818c4844", kill_on_drop: false }`
[INFO] [stdout] 5e13010201027b925fc711e2cd995f294b3cd8c394d5a366d6f1c7f8818c4844
[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] 64309d3f485e3b82ed76b133a97fc7b867c32b6f3a997d34e53d74f6da52693c
[INFO] running `Command { std: "docker" "start" "-a" "64309d3f485e3b82ed76b133a97fc7b867c32b6f3a997d34e53d74f6da52693c", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/base/layer.rs:123:27
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub fn read_unchecked(&mut self, addr: &Range<u64>) -> Result<(Range<usize>, Cow<[u8]>), Error> {
[INFO] [stdout]     |                           ^^^^^^^^^ the lifetime is elided here                  ^^^^^^^^^ the same lifetime is hidden 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] 123 |     pub fn read_unchecked(&mut self, addr: &Range<u64>) -> Result<(Range<usize>, Cow<'_, [u8]>), Error> {
[INFO] [stdout]     |                                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling stack-db v0.3.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/base/layer.rs:123:27
[INFO] [stdout]     |
[INFO] [stdout] 123 |     pub fn read_unchecked(&mut self, addr: &Range<u64>) -> Result<(Range<usize>, Cow<[u8]>), Error> {
[INFO] [stdout]     |                           ^^^^^^^^^ the lifetime is elided here                  ^^^^^^^^^ the same lifetime is hidden 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] 123 |     pub fn read_unchecked(&mut self, addr: &Range<u64>) -> Result<(Range<usize>, Cow<'_, [u8]>), Error> {
[INFO] [stdout]     |                                                                                      +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.87s
[INFO] running `Command { std: "docker" "inspect" "64309d3f485e3b82ed76b133a97fc7b867c32b6f3a997d34e53d74f6da52693c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64309d3f485e3b82ed76b133a97fc7b867c32b6f3a997d34e53d74f6da52693c", kill_on_drop: false }`
[INFO] [stdout] 64309d3f485e3b82ed76b133a97fc7b867c32b6f3a997d34e53d74f6da52693c