[INFO] fetching crate runtime_tracing 0.15.0...
[INFO] checking runtime_tracing-0.15.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate runtime_tracing 0.15.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate runtime_tracing 0.15.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate runtime_tracing 0.15.0
[INFO] tweaked toml for crates.io crate runtime_tracing 0.15.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate runtime_tracing 0.15.0 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 crates.io crate runtime_tracing 0.15.0 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 97b3c2513af18e2a543ce4c53c53ffd4742bb29cf4db608fc3ae359fed08cc13
[INFO] running `Command { std: "docker" "start" "-a" "97b3c2513af18e2a543ce4c53c53ffd4742bb29cf4db608fc3ae359fed08cc13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97b3c2513af18e2a543ce4c53c53ffd4742bb29cf4db608fc3ae359fed08cc13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97b3c2513af18e2a543ce4c53c53ffd4742bb29cf4db608fc3ae359fed08cc13", kill_on_drop: false }`
[INFO] [stdout] 97b3c2513af18e2a543ce4c53c53ffd4742bb29cf4db608fc3ae359fed08cc13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 9a85245d2f1570287f351bea1d486226e85f9aec95b230370d86f6b960ad970f
[INFO] running `Command { std: "docker" "start" "-a" "9a85245d2f1570287f351bea1d486226e85f9aec95b230370d86f6b960ad970f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling capnp v0.21.1
[INFO] [stderr]    Compiling zstd-safe v7.2.4
[INFO] [stderr]    Compiling schemars v0.8.22
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]     Checking fscommon v0.1.1
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling jobserver v0.1.33
[INFO] [stderr]    Compiling cc v1.2.30
[INFO] [stderr]    Compiling capnpc v0.21.0
[INFO] [stderr]    Compiling serde_derive_internals v0.29.1
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]    Compiling num-derive v0.4.2
[INFO] [stderr]    Compiling serde_repr v0.1.20
[INFO] [stderr]    Compiling schemars_derive v0.8.22
[INFO] [stderr]    Compiling zstd-sys v2.0.15+zstd.1.5.7
[INFO] [stderr]    Compiling runtime_tracing v0.15.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stderr]     Checking cbor4ii v1.0.0
[INFO] [stderr]     Checking zeekstd v0.6.1
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]    --> src/capnptrace.rs:372:33
[INFO] [stdout]     |
[INFO] [stdout] 372 |                 ret_place.set_p(bindvarrec.place.0.try_into().unwrap());
[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<i64, Infallible>
[INFO] [stdout]    --> src/capnptrace.rs:411:33
[INFO] [stdout]     |
[INFO] [stdout] 411 |                 ret_place.set_p(cvr.place.0.try_into().unwrap());
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]    --> src/capnptrace.rs:418:33
[INFO] [stdout]     |
[INFO] [stdout] 418 |                 ret_place.set_p(cvr.place.0.try_into().unwrap());
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]    --> src/capnptrace.rs:425:33
[INFO] [stdout]     |
[INFO] [stdout] 425 |                 ret_place.set_p(acr.place.0.try_into().unwrap());
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]    --> src/capnptrace.rs:432:33
[INFO] [stdout]     |
[INFO] [stdout] 432 |                 ret_place.set_p(aci.place.0.try_into().unwrap());
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]    --> src/capnptrace.rs:435:38
[INFO] [stdout]     |
[INFO] [stdout] 435 |                 ret_item_place.set_p(aci.item_place.0.try_into().unwrap());
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]    --> src/capnptrace.rs:442:33
[INFO] [stdout]     |
[INFO] [stdout] 442 |                 ret_place.set_p(vcr.place.0.try_into().unwrap());
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/capnptrace.rs:566:42
[INFO] [stdout]     |
[INFO] [stdout] 566 |                 TraceLowLevelEvent::Path(std::path::PathBuf::from_str(path_buf?.get_p()?.to_str()?).unwrap())
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `runtime_tracing` (lib test) due to 8 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]    --> src/capnptrace.rs:372:33
[INFO] [stdout]     |
[INFO] [stdout] 372 |                 ret_place.set_p(bindvarrec.place.0.try_into().unwrap());
[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<i64, Infallible>
[INFO] [stdout]    --> src/capnptrace.rs:411:33
[INFO] [stdout]     |
[INFO] [stdout] 411 |                 ret_place.set_p(cvr.place.0.try_into().unwrap());
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]    --> src/capnptrace.rs:418:33
[INFO] [stdout]     |
[INFO] [stdout] 418 |                 ret_place.set_p(cvr.place.0.try_into().unwrap());
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]    --> src/capnptrace.rs:425:33
[INFO] [stdout]     |
[INFO] [stdout] 425 |                 ret_place.set_p(acr.place.0.try_into().unwrap());
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]    --> src/capnptrace.rs:432:33
[INFO] [stdout]     |
[INFO] [stdout] 432 |                 ret_place.set_p(aci.place.0.try_into().unwrap());
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]    --> src/capnptrace.rs:435:38
[INFO] [stdout]     |
[INFO] [stdout] 435 |                 ret_item_place.set_p(aci.item_place.0.try_into().unwrap());
[INFO] [stdout]     |                                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<i64, Infallible>
[INFO] [stdout]    --> src/capnptrace.rs:442:33
[INFO] [stdout]     |
[INFO] [stdout] 442 |                 ret_place.set_p(vcr.place.0.try_into().unwrap());
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/capnptrace.rs:566:42
[INFO] [stdout]     |
[INFO] [stdout] 566 |                 TraceLowLevelEvent::Path(std::path::PathBuf::from_str(path_buf?.get_p()?.to_str()?).unwrap())
[INFO] [stdout]     |                                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `runtime_tracing` (lib) due to 8 previous errors
[INFO] running `Command { std: "docker" "inspect" "9a85245d2f1570287f351bea1d486226e85f9aec95b230370d86f6b960ad970f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a85245d2f1570287f351bea1d486226e85f9aec95b230370d86f6b960ad970f", kill_on_drop: false }`
[INFO] [stdout] 9a85245d2f1570287f351bea1d486226e85f9aec95b230370d86f6b960ad970f
