[INFO] fetching crate mownstr 0.3.1...
[INFO] testing mownstr-0.3.1 against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] extracting crate mownstr 0.3.1 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate mownstr 0.3.1
[INFO] finished tweaking crates.io crate mownstr 0.3.1
[INFO] tweaked toml for crates.io crate mownstr 0.3.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mownstr 0.3.1 on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mownstr 0.3.1 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3700c0e354005bb426ab2bd237c24a5030a90d691313edfe51d1701847236370
[INFO] running `Command { std: "docker" "start" "-a" "3700c0e354005bb426ab2bd237c24a5030a90d691313edfe51d1701847236370", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3700c0e354005bb426ab2bd237c24a5030a90d691313edfe51d1701847236370", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3700c0e354005bb426ab2bd237c24a5030a90d691313edfe51d1701847236370", kill_on_drop: false }`
[INFO] [stdout] 3700c0e354005bb426ab2bd237c24a5030a90d691313edfe51d1701847236370
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1bc793b99771476a108332353fdb65fd5c0500c9cbed0ad8093445fb6c594e88
[INFO] running `Command { std: "docker" "start" "-a" "1bc793b99771476a108332353fdb65fd5c0500c9cbed0ad8093445fb6c594e88", kill_on_drop: false }`
[INFO] [stderr]    Compiling mownstr v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:79:27
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub const fn borrowed(&self) -> MownStr {
[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] 79 |     pub const fn borrowed(&self) -> MownStr<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "1bc793b99771476a108332353fdb65fd5c0500c9cbed0ad8093445fb6c594e88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bc793b99771476a108332353fdb65fd5c0500c9cbed0ad8093445fb6c594e88", kill_on_drop: false }`
[INFO] [stdout] 1bc793b99771476a108332353fdb65fd5c0500c9cbed0ad8093445fb6c594e88
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f5f1b03af8fcf99884247cb5d63a46ef14d827521ecbe7436667c40e3d34d43
[INFO] running `Command { std: "docker" "start" "-a" "8f5f1b03af8fcf99884247cb5d63a46ef14d827521ecbe7436667c40e3d34d43", kill_on_drop: false }`
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:79:27
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub const fn borrowed(&self) -> MownStr {
[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] 79 |     pub const fn borrowed(&self) -> MownStr<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling mownstr v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/lib.rs:79:27
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub const fn borrowed(&self) -> MownStr {
[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] 79 |     pub const fn borrowed(&self) -> MownStr<'_> {
[INFO] [stdout]    |                                            ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "8f5f1b03af8fcf99884247cb5d63a46ef14d827521ecbe7436667c40e3d34d43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f5f1b03af8fcf99884247cb5d63a46ef14d827521ecbe7436667c40e3d34d43", kill_on_drop: false }`
[INFO] [stdout] 8f5f1b03af8fcf99884247cb5d63a46ef14d827521ecbe7436667c40e3d34d43
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 86dfae0b5a420124a07c45905720d030f2901dd4894bff2733b82c6a009048a6
[INFO] running `Command { std: "docker" "start" "-a" "86dfae0b5a420124a07c45905720d030f2901dd4894bff2733b82c6a009048a6", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/lib.rs:79:27
[INFO] [stderr]    |
[INFO] [stderr] 79 |     pub const fn borrowed(&self) -> MownStr {
[INFO] [stderr]    |                           ^^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                           |
[INFO] [stderr]    |                           the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 79 |     pub const fn borrowed(&self) -> MownStr<'_> {
[INFO] [stderr]    |                                            ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `mownstr` (lib) generated 1 warning (run `cargo fix --lib -p mownstr` to apply 1 suggestion)
[INFO] [stderr] warning: `mownstr` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/mownstr-32a24926914f2c06)
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test test::borrowed ... ok
[INFO] [stdout] test test::build_borrowed_from_cow ... ok
[INFO] [stdout] test test::build_borrowed_empty ... ok
[INFO] [stdout] test test::build_borrowed ... ok
[INFO] [stdout] test test::build_owned_from_box ... ok
[INFO] [stdout] test test::build_owned_from_cow ... ok
[INFO] [stdout] test test::build_owned_from_string ... ok
[INFO] [stdout] test test::deref ... ok
[INFO] [stdout] test test::display ... ok
[INFO] [stdout] test test::empty_string ... ok
[INFO] [stdout] test test::eq ... ok
[INFO] [stdout] test test::hash ... ok
[INFO] [stdout] test test::niche ... ok
[INFO] [stdout] test test::no_double_free ... ok
[INFO] [stdout] test test::order ... ok
[INFO] [stdout] test test::size ... ok
[INFO] [stdout] test test::no_memory_leak ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 17 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.90s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests mownstr
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - MownStr<'a>::to (line 314) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.25s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "86dfae0b5a420124a07c45905720d030f2901dd4894bff2733b82c6a009048a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86dfae0b5a420124a07c45905720d030f2901dd4894bff2733b82c6a009048a6", kill_on_drop: false }`
[INFO] [stdout] 86dfae0b5a420124a07c45905720d030f2901dd4894bff2733b82c6a009048a6