[INFO] fetching crate rustc-targets 0.1.0...
[INFO] building rustc-targets-0.1.0 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate rustc-targets 0.1.0 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate rustc-targets 0.1.0
[INFO] finished tweaking crates.io crate rustc-targets 0.1.0
[INFO] tweaked toml for crates.io crate rustc-targets 0.1.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustc-targets 0.1.0 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] 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-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] 3a327b04870ac64cb15bf368ec02126614c2f65a2a3293004360560373ba9e0b
[INFO] running `Command { std: "docker" "start" "-a" "3a327b04870ac64cb15bf368ec02126614c2f65a2a3293004360560373ba9e0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3a327b04870ac64cb15bf368ec02126614c2f65a2a3293004360560373ba9e0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a327b04870ac64cb15bf368ec02126614c2f65a2a3293004360560373ba9e0b", kill_on_drop: false }`
[INFO] [stdout] 3a327b04870ac64cb15bf368ec02126614c2f65a2a3293004360560373ba9e0b
[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] b3fc973dba3a06fe528d81ba8904ad1f338668d2dc6d4fa18ea225a8b2916d71
[INFO] running `Command { std: "docker" "start" "-a" "b3fc973dba3a06fe528d81ba8904ad1f338668d2dc6d4fa18ea225a8b2916d71", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-targets v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> src/lib.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn iter(&self) -> Result<TargetsIter, std::str::Utf8Error> {
[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] 6 |     pub fn iter(&self) -> Result<TargetsIter<'_>, std::str::Utf8Error> {
[INFO] [stdout]   |                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "b3fc973dba3a06fe528d81ba8904ad1f338668d2dc6d4fa18ea225a8b2916d71", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3fc973dba3a06fe528d81ba8904ad1f338668d2dc6d4fa18ea225a8b2916d71", kill_on_drop: false }`
[INFO] [stdout] b3fc973dba3a06fe528d81ba8904ad1f338668d2dc6d4fa18ea225a8b2916d71
[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] 433b0e3fb0d9dc01d87c44a3e75906164e39e40bb222bf17174053962e26eacc
[INFO] running `Command { std: "docker" "start" "-a" "433b0e3fb0d9dc01d87c44a3e75906164e39e40bb222bf17174053962e26eacc", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-targets v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> src/lib.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn iter(&self) -> Result<TargetsIter, std::str::Utf8Error> {
[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] 6 |     pub fn iter(&self) -> Result<TargetsIter<'_>, std::str::Utf8Error> {
[INFO] [stdout]   |                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]  --> src/lib.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn iter(&self) -> Result<TargetsIter, std::str::Utf8Error> {
[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] 6 |     pub fn iter(&self) -> Result<TargetsIter<'_>, std::str::Utf8Error> {
[INFO] [stdout]   |                                             ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "433b0e3fb0d9dc01d87c44a3e75906164e39e40bb222bf17174053962e26eacc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "433b0e3fb0d9dc01d87c44a3e75906164e39e40bb222bf17174053962e26eacc", kill_on_drop: false }`
[INFO] [stdout] 433b0e3fb0d9dc01d87c44a3e75906164e39e40bb222bf17174053962e26eacc