[INFO] fetching crate single_byte_hashmap 0.1.2...
[INFO] testing single_byte_hashmap-0.1.2 against 1.55.0 for beta-1.56-1
[INFO] extracting crate single_byte_hashmap 0.1.2 into /workspace/builds/worker-90/source
[INFO] validating manifest of crates.io crate single_byte_hashmap 0.1.2 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate single_byte_hashmap 0.1.2
[INFO] finished tweaking crates.io crate single_byte_hashmap 0.1.2
[INFO] tweaked toml for crates.io crate single_byte_hashmap 0.1.2 written to /workspace/builds/worker-90/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "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-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 97f27ebc0c14dd9ade0db94a6be9ecd6f1441a97d277858d18096c1feaac86c6
[INFO] running `Command { std: "docker" "start" "-a" "97f27ebc0c14dd9ade0db94a6be9ecd6f1441a97d277858d18096c1feaac86c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97f27ebc0c14dd9ade0db94a6be9ecd6f1441a97d277858d18096c1feaac86c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97f27ebc0c14dd9ade0db94a6be9ecd6f1441a97d277858d18096c1feaac86c6", kill_on_drop: false }`
[INFO] [stdout] 97f27ebc0c14dd9ade0db94a6be9ecd6f1441a97d277858d18096c1feaac86c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a1340a2e6811955a31e4abf6ba99f2fee95a5a48ba20848e2a25189c727a9a7
[INFO] running `Command { std: "docker" "start" "-a" "7a1340a2e6811955a31e4abf6ba99f2fee95a5a48ba20848e2a25189c727a9a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling single_byte_hashmap v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.22s
[INFO] running `Command { std: "docker" "inspect" "7a1340a2e6811955a31e4abf6ba99f2fee95a5a48ba20848e2a25189c727a9a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a1340a2e6811955a31e4abf6ba99f2fee95a5a48ba20848e2a25189c727a9a7", kill_on_drop: false }`
[INFO] [stdout] 7a1340a2e6811955a31e4abf6ba99f2fee95a5a48ba20848e2a25189c727a9a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b51a9bc92fbba1e23211ef30e29813a91015aacb611e4fd941acb40533f43c0a
[INFO] running `Command { std: "docker" "start" "-a" "b51a9bc92fbba1e23211ef30e29813a91015aacb611e4fd941acb40533f43c0a", kill_on_drop: false }`
[INFO] [stderr]    Compiling single_byte_hashmap v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "b51a9bc92fbba1e23211ef30e29813a91015aacb611e4fd941acb40533f43c0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b51a9bc92fbba1e23211ef30e29813a91015aacb611e4fd941acb40533f43c0a", kill_on_drop: false }`
[INFO] [stdout] b51a9bc92fbba1e23211ef30e29813a91015aacb611e4fd941acb40533f43c0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-90/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 711d41f412b20c8db4ab9400b1efd69987f0e312e0ec531d39c9af27bc2d4883
[INFO] running `Command { std: "docker" "start" "-a" "711d41f412b20c8db4ab9400b1efd69987f0e312e0ec531d39c9af27bc2d4883", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/single_byte_hashmap-551bc48f372a7d6e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests single_byte_hashmap
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 12) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 12) stdout ----
[INFO] [stdout] error[E0596]: cannot borrow `player_score` as mutable, as it is not declared as mutable
[INFO] [stdout]  --> src/lib.rs:16:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | let player_score: HashMap<u8, u16> = HashMap::with_capacity_and_hasher(256, BuildHasher::default());
[INFO] [stdout]   |     ------------ help: consider changing this to be mutable: `mut player_score`
[INFO] [stdout] 7 | player_score.insert(0, 2000);
[INFO] [stdout]   | ^^^^^^^^^^^^ cannot borrow as mutable
[INFO] [stdout] 
[INFO] [stdout] error[E0596]: cannot borrow `player_score` as mutable, as it is not declared as mutable
[INFO] [stdout]  --> src/lib.rs:17:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | let player_score: HashMap<u8, u16> = HashMap::with_capacity_and_hasher(256, BuildHasher::default());
[INFO] [stdout]   |     ------------ help: consider changing this to be mutable: `mut player_score`
[INFO] [stdout] 7 | player_score.insert(0, 2000);
[INFO] [stdout] 8 | player_score.insert(1, 3000);
[INFO] [stdout]   | ^^^^^^^^^^^^ cannot borrow as mutable
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0596`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 12)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.10s
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "711d41f412b20c8db4ab9400b1efd69987f0e312e0ec531d39c9af27bc2d4883", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "711d41f412b20c8db4ab9400b1efd69987f0e312e0ec531d39c9af27bc2d4883", kill_on_drop: false }`
[INFO] [stdout] 711d41f412b20c8db4ab9400b1efd69987f0e312e0ec531d39c9af27bc2d4883