[INFO] fetching crate so_many_words 0.1.3...
[INFO] checking so_many_words-0.1.3 against master#e1beee4992ad4b235fc700bf7af1ee86f894ea53 for pr-74130
[INFO] extracting crate so_many_words 0.1.3 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate so_many_words 0.1.3 on toolchain e1beee4992ad4b235fc700bf7af1ee86f894ea53
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate so_many_words 0.1.3
[INFO] finished tweaking crates.io crate so_many_words 0.1.3
[INFO] tweaked toml for crates.io crate so_many_words 0.1.3 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate so_many_words 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d948ef097ba6c8d595df3361da889ffe8f563d624d139e7da583f3f653531bea
[INFO] running `Command { std: "docker" "start" "-a" "d948ef097ba6c8d595df3361da889ffe8f563d624d139e7da583f3f653531bea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d948ef097ba6c8d595df3361da889ffe8f563d624d139e7da583f3f653531bea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d948ef097ba6c8d595df3361da889ffe8f563d624d139e7da583f3f653531bea", kill_on_drop: false }`
[INFO] [stdout] d948ef097ba6c8d595df3361da889ffe8f563d624d139e7da583f3f653531bea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+e1beee4992ad4b235fc700bf7af1ee86f894ea53" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52a9347344ce5da325c264e655a622d326bb65223235baae78aed1fda39aae4f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "52a9347344ce5da325c264e655a622d326bb65223235baae78aed1fda39aae4f", kill_on_drop: false }`
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking radix_trie v0.2.0
[INFO] [stderr]     Checking so_many_words v0.1.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `passed`
[INFO] [stdout]    --> src/en/grammar.rs:130:4
[INFO] [stdout]     |
[INFO] [stdout] 130 |    passed: Vec<WordUsage>,
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `at_node`
[INFO] [stdout]    --> src/en/grammar.rs:131:4
[INFO] [stdout]     |
[INFO] [stdout] 131 |    at_node: usize
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `passed`
[INFO] [stdout]    --> src/en/grammar.rs:130:4
[INFO] [stdout]     |
[INFO] [stdout] 130 |    passed: Vec<WordUsage>,
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `at_node`
[INFO] [stdout]    --> src/en/grammar.rs:131:4
[INFO] [stdout]     |
[INFO] [stdout] 131 |    at_node: usize
[INFO] [stdout]     |    ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.95s
[INFO] running `Command { std: "docker" "inspect" "52a9347344ce5da325c264e655a622d326bb65223235baae78aed1fda39aae4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52a9347344ce5da325c264e655a622d326bb65223235baae78aed1fda39aae4f", kill_on_drop: false }`
[INFO] [stdout] 52a9347344ce5da325c264e655a622d326bb65223235baae78aed1fda39aae4f