[INFO] cloning repository https://github.com/crate-py/url
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/crate-py/url" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrate-py%2Furl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrate-py%2Furl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0ddad9530cbc7364576f3575541a5db61b6fbea7
[INFO] checking crate-py/url against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcrate-py%2Furl" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/crate-py/url
[INFO] finished tweaking git repo https://github.com/crate-py/url
[INFO] tweaked toml for git repo https://github.com/crate-py/url written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/crate-py/url on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/crate-py/url 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 629672f1bc8945fe5ec8a9a346c2211104d5245f3e18a82e6f5ca505953c18f7
[INFO] running `Command { std: "docker" "start" "-a" "629672f1bc8945fe5ec8a9a346c2211104d5245f3e18a82e6f5ca505953c18f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "629672f1bc8945fe5ec8a9a346c2211104d5245f3e18a82e6f5ca505953c18f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "629672f1bc8945fe5ec8a9a346c2211104d5245f3e18a82e6f5ca505953c18f7", kill_on_drop: false }`
[INFO] [stdout] 629672f1bc8945fe5ec8a9a346c2211104d5245f3e18a82e6f5ca505953c18f7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e60ffd4c5e1c5f28cc251794863b428868c8731328499e186b141e6034d8eb8d
[INFO] running `Command { std: "docker" "start" "-a" "e60ffd4c5e1c5f28cc251794863b428868c8731328499e186b141e6034d8eb8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling target-lexicon v0.13.2
[INFO] [stderr]    Compiling python3-dll-a v0.2.14
[INFO] [stderr]     Checking smallvec v1.15.0
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking percent-encoding v2.3.2
[INFO] [stderr]     Checking unindent v0.2.4
[INFO] [stderr]     Checking zerofrom v0.1.6
[INFO] [stderr]     Checking form_urlencoded v1.2.2
[INFO] [stderr]     Checking yoke v0.8.0
[INFO] [stderr]     Checking zerovec v0.11.2
[INFO] [stderr]     Checking zerotrie v0.2.2
[INFO] [stderr]    Compiling pyo3-build-config v0.27.1
[INFO] [stderr]     Checking tinystr v0.8.1
[INFO] [stderr]     Checking potential_utf v0.1.2
[INFO] [stderr]     Checking icu_collections v2.0.0
[INFO] [stderr]     Checking icu_locale_core v2.0.0
[INFO] [stderr]     Checking icu_provider v2.0.0
[INFO] [stderr]    Compiling pyo3-macros-backend v0.27.1
[INFO] [stderr]    Compiling pyo3-ffi v0.27.1
[INFO] [stderr]    Compiling pyo3 v0.27.1
[INFO] [stderr]     Checking icu_normalizer v2.0.0
[INFO] [stderr]     Checking icu_properties v2.0.1
[INFO] [stderr]     Checking idna_adapter v1.2.1
[INFO] [stderr]     Checking idna v1.1.0
[INFO] [stderr]     Checking url v2.5.7
[INFO] [stderr]    Compiling pyo3-macros v0.27.1
[INFO] [stderr]     Checking url-py v0.18.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<Option<String>, Infallible>
[INFO] [stdout]    --> src/lib.rs:115:45
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn make_relative(&self, url: &UrlPy) -> Option<String> {
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<Option<String>, Infallible>
[INFO] [stdout]    --> src/lib.rs:115:45
[INFO] [stdout]     |
[INFO] [stdout] 115 |     fn make_relative(&self, url: &UrlPy) -> Option<String> {
[INFO] [stdout]     |                                             ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<UrlPy, Infallible>
[INFO] [stdout]    --> src/lib.rs:179:56
[INFO] [stdout]     |
[INFO] [stdout] 179 |     fn with_fragment(&self, fragment: Option<&str>) -> Self {
[INFO] [stdout]     |                                                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<UrlPy, Infallible>
[INFO] [stdout]    --> src/lib.rs:179:56
[INFO] [stdout]     |
[INFO] [stdout] 179 |     fn with_fragment(&self, fragment: Option<&str>) -> Self {
[INFO] [stdout]     |                                                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `url-py` (lib test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `url-py` (lib) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "e60ffd4c5e1c5f28cc251794863b428868c8731328499e186b141e6034d8eb8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e60ffd4c5e1c5f28cc251794863b428868c8731328499e186b141e6034d8eb8d", kill_on_drop: false }`
[INFO] [stdout] e60ffd4c5e1c5f28cc251794863b428868c8731328499e186b141e6034d8eb8d
