[INFO] cloning repository https://github.com/nbars/llvm-cov-json-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nbars/llvm-cov-json-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnbars%2Fllvm-cov-json-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnbars%2Fllvm-cov-json-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5cc88482fe42b17a12426fb7918db86dbfb3c2fa
[INFO] checking nbars/llvm-cov-json-rs against master#c756124775121dea0e640652c5ee3c89e3dd0eb4 for pr-154971-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnbars%2Fllvm-cov-json-rs" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/nbars/llvm-cov-json-rs
[INFO] finished tweaking git repo https://github.com/nbars/llvm-cov-json-rs
[INFO] tweaked toml for git repo https://github.com/nbars/llvm-cov-json-rs written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/nbars/llvm-cov-json-rs on toolchain c756124775121dea0e640652c5ee3c89e3dd0eb4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c756124775121dea0e640652c5ee3c89e3dd0eb4" "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" "+c756124775121dea0e640652c5ee3c89e3dd0eb4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c756124775121dea0e640652c5ee3c89e3dd0eb4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+c756124775121dea0e640652c5ee3c89e3dd0eb4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] deae6331b2e1ce5c059bbd0aa331bffcef36366d07e802dc7ff2e9b8b68dff5d
[INFO] running `Command { std: "docker" "start" "-a" "deae6331b2e1ce5c059bbd0aa331bffcef36366d07e802dc7ff2e9b8b68dff5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "deae6331b2e1ce5c059bbd0aa331bffcef36366d07e802dc7ff2e9b8b68dff5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "deae6331b2e1ce5c059bbd0aa331bffcef36366d07e802dc7ff2e9b8b68dff5d", kill_on_drop: false }`
[INFO] [stdout] deae6331b2e1ce5c059bbd0aa331bffcef36366d07e802dc7ff2e9b8b68dff5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+c756124775121dea0e640652c5ee3c89e3dd0eb4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 41e7c74384da9b39f3375a1c9937bb238bf703feaccd441994eff4ccbc3997ef
[INFO] running `Command { std: "docker" "start" "-a" "41e7c74384da9b39f3375a1c9937bb238bf703feaccd441994eff4ccbc3997ef", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.106
[INFO] [stderr]    Compiling quote v1.0.45
[INFO] [stderr]    Compiling unicode-ident v1.0.24
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling zmij v1.0.21
[INFO] [stderr]    Compiling serde_json v1.0.149
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Checking itoa v1.0.18
[INFO] [stderr]     Checking memchr v2.8.0
[INFO] [stderr]    Compiling syn v2.0.117
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking llvm-cov-json v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/types/mod.rs:37:24
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn from_str(s: &str) -> Result<CoverageReport, serde_json::Error> {
[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] 37 |     pub fn from_str(s: &str) -> Result<CoverageReport<'_>, serde_json::Error> {
[INFO] [stdout]    |                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/types/mod.rs:37:24
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn from_str(s: &str) -> Result<CoverageReport, serde_json::Error> {
[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] 37 |     pub fn from_str(s: &str) -> Result<CoverageReport<'_>, serde_json::Error> {
[INFO] [stdout]    |                                                      ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.02s
[INFO] running `Command { std: "docker" "inspect" "41e7c74384da9b39f3375a1c9937bb238bf703feaccd441994eff4ccbc3997ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "41e7c74384da9b39f3375a1c9937bb238bf703feaccd441994eff4ccbc3997ef", kill_on_drop: false }`
[INFO] [stdout] 41e7c74384da9b39f3375a1c9937bb238bf703feaccd441994eff4ccbc3997ef