[INFO] fetching crate string_cache 0.8.2...
[INFO] checking string_cache-0.8.2 against master#936f2600b6c903b04387f74ed5cbce88bb06d243 for pr-91141
[INFO] extracting crate string_cache 0.8.2 into /workspace/builds/worker-26/source
[INFO] validating manifest of crates.io crate string_cache 0.8.2 on toolchain 936f2600b6c903b04387f74ed5cbce88bb06d243
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate string_cache 0.8.2
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate string_cache 0.8.2
[INFO] tweaked toml for crates.io crate string_cache 0.8.2 written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] crate crates.io crate string_cache 0.8.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f9cea8ae387467c6cbc58aab80db44f0c55f12dd8130b883272dd22cff59d80d
[INFO] running `Command { std: "docker" "start" "-a" "f9cea8ae387467c6cbc58aab80db44f0c55f12dd8130b883272dd22cff59d80d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f9cea8ae387467c6cbc58aab80db44f0c55f12dd8130b883272dd22cff59d80d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9cea8ae387467c6cbc58aab80db44f0c55f12dd8130b883272dd22cff59d80d", kill_on_drop: false }`
[INFO] [stdout] f9cea8ae387467c6cbc58aab80db44f0c55f12dd8130b883272dd22cff59d80d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+936f2600b6c903b04387f74ed5cbce88bb06d243" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0d55fdb33a867c30a8deda9b409f72b7c58c3fc5e0bcdc2bfa7dcb4c55eb4eda
[INFO] running `Command { std: "docker" "start" "-a" "0d55fdb33a867c30a8deda9b409f72b7c58c3fc5e0bcdc2bfa7dcb4c55eb4eda", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]     Checking smallvec v1.7.0
[INFO] [stderr]     Checking precomputed-hash v0.1.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking new_debug_unreachable v1.0.3
[INFO] [stderr]     Checking lock_api v0.4.5
[INFO] [stderr]     Checking instant v0.1.11
[INFO] [stderr]     Checking parking_lot v0.11.2
[INFO] [stderr]     Checking string_cache v0.8.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `from` that must be used
[INFO] [stdout]   --> tests/small-stack.rs:12:13
[INFO] [stdout]    |
[INFO] [stdout] 12 |             string_cache::DefaultAtom::from("12345678");
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.40s
[INFO] running `Command { std: "docker" "inspect" "0d55fdb33a867c30a8deda9b409f72b7c58c3fc5e0bcdc2bfa7dcb4c55eb4eda", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0d55fdb33a867c30a8deda9b409f72b7c58c3fc5e0bcdc2bfa7dcb4c55eb4eda", kill_on_drop: false }`
[INFO] [stdout] 0d55fdb33a867c30a8deda9b409f72b7c58c3fc5e0bcdc2bfa7dcb4c55eb4eda