[INFO] fetching crate string_cache 0.8.2...
[INFO] testing string_cache-0.8.2 against try#8262275854dc0e5381c9d42d56257d94932c5a87 for pr-90799
[INFO] extracting crate string_cache 0.8.2 into /workspace/builds/worker-49/source
[INFO] validating manifest of crates.io crate string_cache 0.8.2 on toolchain 8262275854dc0e5381c9d42d56257d94932c5a87
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "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-49/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" "+8262275854dc0e5381c9d42d56257d94932c5a87" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded new_debug_unreachable v1.0.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 500dc3d7b1fba4a1796f9bd01c2508aebb50730335ae2854a3335fc65718fd6a
[INFO] running `Command { std: "docker" "start" "-a" "500dc3d7b1fba4a1796f9bd01c2508aebb50730335ae2854a3335fc65718fd6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "500dc3d7b1fba4a1796f9bd01c2508aebb50730335ae2854a3335fc65718fd6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "500dc3d7b1fba4a1796f9bd01c2508aebb50730335ae2854a3335fc65718fd6a", kill_on_drop: false }`
[INFO] [stdout] 500dc3d7b1fba4a1796f9bd01c2508aebb50730335ae2854a3335fc65718fd6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2b80e2d0ceb6aa3c7bae49e986932894bb73265aa6e786afaf3b850cc0e3542
[INFO] running `Command { std: "docker" "start" "-a" "f2b80e2d0ceb6aa3c7bae49e986932894bb73265aa6e786afaf3b850cc0e3542", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling parking_lot_core v0.8.5
[INFO] [stderr]    Compiling smallvec v1.7.0
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling siphasher v0.3.7
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.3
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling instant v0.1.11
[INFO] [stderr]    Compiling lock_api v0.4.5
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling parking_lot v0.11.2
[INFO] [stderr]    Compiling string_cache v0.8.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.33s
[INFO] running `Command { std: "docker" "inspect" "f2b80e2d0ceb6aa3c7bae49e986932894bb73265aa6e786afaf3b850cc0e3542", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2b80e2d0ceb6aa3c7bae49e986932894bb73265aa6e786afaf3b850cc0e3542", kill_on_drop: false }`
[INFO] [stdout] f2b80e2d0ceb6aa3c7bae49e986932894bb73265aa6e786afaf3b850cc0e3542
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e241e0b5764e24145437a78c71452cc26d873cc5965d59d777f38386fd280aa1
[INFO] running `Command { std: "docker" "start" "-a" "e241e0b5764e24145437a78c71452cc26d873cc5965d59d777f38386fd280aa1", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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 test [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "e241e0b5764e24145437a78c71452cc26d873cc5965d59d777f38386fd280aa1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e241e0b5764e24145437a78c71452cc26d873cc5965d59d777f38386fd280aa1", kill_on_drop: false }`
[INFO] [stdout] e241e0b5764e24145437a78c71452cc26d873cc5965d59d777f38386fd280aa1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-49/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+8262275854dc0e5381c9d42d56257d94932c5a87" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a35418db1977301e09dbec13caf3b0812770eefc31b206b8de9963d0dff23c9f
[INFO] running `Command { std: "docker" "start" "-a" "a35418db1977301e09dbec13caf3b0812770eefc31b206b8de9963d0dff23c9f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused return value of `from` that must be used
[INFO] [stderr]   --> tests/small-stack.rs:12:13
[INFO] [stderr]    |
[INFO] [stderr] 12 |             string_cache::DefaultAtom::from("12345678");
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `string_cache` (test "small-stack") generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.36s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/string_cache-5619870ee9125191)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test assert_sizes ... ok
[INFO] [stdout] test dynamic_set::entry_alignment_is_sufficient ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/small-stack.rs (/opt/rustwide/target/debug/deps/small_stack-8a7ce21c2b152e84)
[INFO] [stderr]    Doc-tests string_cache
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/atom.rs - atom::Atom (line 63) ... ignored
[INFO] [stdout] test src/lib.rs - (line 36) ... ignored
[INFO] [stdout] test src/lib.rs - (line 52) ... ignored
[INFO] [stdout] test src/lib.rs - (line 75) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 3 ignored; 0 measured; 0 filtered out; finished in 0.62s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "a35418db1977301e09dbec13caf3b0812770eefc31b206b8de9963d0dff23c9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a35418db1977301e09dbec13caf3b0812770eefc31b206b8de9963d0dff23c9f", kill_on_drop: false }`
[INFO] [stdout] a35418db1977301e09dbec13caf3b0812770eefc31b206b8de9963d0dff23c9f