[INFO] fetching crate sto 0.1.1...
[INFO] checking sto-0.1.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate sto 0.1.1 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate sto 0.1.1
[INFO] finished tweaking crates.io crate sto 0.1.1
[INFO] tweaked toml for crates.io crate sto 0.1.1 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sto 0.1.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 71 packages to latest compatible versions
[INFO] [stderr]       Adding criterion v0.5.1 (available: v0.7.0)
[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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] edb7c4e4b77bb694f4c70cbed6668296c3cfb564bc544ba6580fa57a88f408ee
[INFO] running `Command { std: "docker" "start" "-a" "edb7c4e4b77bb694f4c70cbed6668296c3cfb564bc544ba6580fa57a88f408ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "edb7c4e4b77bb694f4c70cbed6668296c3cfb564bc544ba6580fa57a88f408ee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edb7c4e4b77bb694f4c70cbed6668296c3cfb564bc544ba6580fa57a88f408ee", kill_on_drop: false }`
[INFO] [stdout] edb7c4e4b77bb694f4c70cbed6668296c3cfb564bc544ba6580fa57a88f408ee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 74c6024204e372390fa61ed7e6960c47d3fd3e5e6302664e7203d4eab61f438c
[INFO] running `Command { std: "docker" "start" "-a" "74c6024204e372390fa61ed7e6960c47d3fd3e5e6302664e7203d4eab61f438c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling serde_core v1.0.228
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Checking either v1.15.0
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking rayon v1.11.0
[INFO] [stderr]     Checking criterion-plot v0.5.0
[INFO] [stderr]     Checking regex v1.12.2
[INFO] [stderr]     Checking serde_json v1.0.145
[INFO] [stderr]    Compiling zerocopy-derive v0.8.27
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]     Checking zerocopy v0.8.27
[INFO] [stderr]     Checking half v2.7.1
[INFO] [stderr]     Checking ahash v0.8.12
[INFO] [stderr]     Checking sto v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<ScopedSto<'_>, Infallible>
[INFO] [stdout]    --> src/lib.rs:271:53
[INFO] [stdout]     |
[INFO] [stdout] 271 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]     |  _____________________________________________________^
[INFO] [stdout] 272 | |         Ok(s.into())
[INFO] [stdout] 273 | |     }
[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<ScopedSto<'_>, Infallible>
[INFO] [stdout]    --> src/lib.rs:272:9
[INFO] [stdout]     |
[INFO] [stdout] 272 |         Ok(s.into())
[INFO] [stdout]     |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sto` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "74c6024204e372390fa61ed7e6960c47d3fd3e5e6302664e7203d4eab61f438c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74c6024204e372390fa61ed7e6960c47d3fd3e5e6302664e7203d4eab61f438c", kill_on_drop: false }`
[INFO] [stdout] 74c6024204e372390fa61ed7e6960c47d3fd3e5e6302664e7203d4eab61f438c