[INFO] fetching crate unixstring 0.2.7...
[INFO] building unixstring-0.2.7 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate unixstring 0.2.7 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate unixstring 0.2.7
[INFO] finished tweaking crates.io crate unixstring 0.2.7
[INFO] tweaked toml for crates.io crate unixstring 0.2.7 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate unixstring 0.2.7 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 unixstring 0.2.7 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.104
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2cf07c2e395486ad82e3eb6b12dbd0e834767168e2ab5353b206dd6a3f8f37aa
[INFO] running `Command { std: "docker" "start" "-a" "2cf07c2e395486ad82e3eb6b12dbd0e834767168e2ab5353b206dd6a3f8f37aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cf07c2e395486ad82e3eb6b12dbd0e834767168e2ab5353b206dd6a3f8f37aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cf07c2e395486ad82e3eb6b12dbd0e834767168e2ab5353b206dd6a3f8f37aa", kill_on_drop: false }`
[INFO] [stdout] 2cf07c2e395486ad82e3eb6b12dbd0e834767168e2ab5353b206dd6a3f8f37aa
[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=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] e332c5cf24c184e77c515d2868110ea36ac8b9650fa67b952a478a65f1b1c6d6
[INFO] running `Command { std: "docker" "start" "-a" "e332c5cf24c184e77c515d2868110ea36ac8b9650fa67b952a478a65f1b1c6d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.104
[INFO] [stderr]    Compiling unixstring v0.2.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/unix_string.rs:349:28
[INFO] [stdout]     |
[INFO] [stdout] 349 |     pub fn to_string_lossy(&self) -> Cow<str> {
[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] 349 |     pub fn to_string_lossy(&self) -> Cow<'_, str> {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.59s
[INFO] running `Command { std: "docker" "inspect" "e332c5cf24c184e77c515d2868110ea36ac8b9650fa67b952a478a65f1b1c6d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e332c5cf24c184e77c515d2868110ea36ac8b9650fa67b952a478a65f1b1c6d6", kill_on_drop: false }`
[INFO] [stdout] e332c5cf24c184e77c515d2868110ea36ac8b9650fa67b952a478a65f1b1c6d6
[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=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] 3c17f9d9151470dd80d8f38ce6b63522ca10f0d9dc79d71b1d2dd2968a4bca20
[INFO] running `Command { std: "docker" "start" "-a" "3c17f9d9151470dd80d8f38ce6b63522ca10f0d9dc79d71b1d2dd2968a4bca20", kill_on_drop: false }`
[INFO] [stderr]    Compiling unixstring v0.2.7 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/unix_string.rs:349:28
[INFO] [stdout]     |
[INFO] [stdout] 349 |     pub fn to_string_lossy(&self) -> Cow<str> {
[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] 349 |     pub fn to_string_lossy(&self) -> Cow<'_, str> {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/unix_string.rs:349:28
[INFO] [stdout]     |
[INFO] [stdout] 349 |     pub fn to_string_lossy(&self) -> Cow<str> {
[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] 349 |     pub fn to_string_lossy(&self) -> Cow<'_, str> {
[INFO] [stdout]     |                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.78s
[INFO] running `Command { std: "docker" "inspect" "3c17f9d9151470dd80d8f38ce6b63522ca10f0d9dc79d71b1d2dd2968a4bca20", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c17f9d9151470dd80d8f38ce6b63522ca10f0d9dc79d71b1d2dd2968a4bca20", kill_on_drop: false }`
[INFO] [stdout] 3c17f9d9151470dd80d8f38ce6b63522ca10f0d9dc79d71b1d2dd2968a4bca20