[INFO] fetching crate so_many_words 0.1.12...
[INFO] checking so_many_words-0.1.12 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate so_many_words 0.1.12 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate so_many_words 0.1.12 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate so_many_words 0.1.12
[INFO] finished tweaking crates.io crate so_many_words 0.1.12
[INFO] tweaked toml for crates.io crate so_many_words 0.1.12 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate so_many_words 0.1.12 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded whatlang v0.9.0
[INFO] [stderr]   Downloaded eudex v0.1.1
[INFO] [stderr]   Downloaded radix_trie v0.2.0
[INFO] [stderr]   Downloaded libc v0.2.72
[INFO] [stderr]   Downloaded fst v0.4.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc535f239f41b91344c391a5c9f3e59516e89db7d230004768e7c8a09611952c
[INFO] running `Command { std: "docker" "start" "-a" "fc535f239f41b91344c391a5c9f3e59516e89db7d230004768e7c8a09611952c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc535f239f41b91344c391a5c9f3e59516e89db7d230004768e7c8a09611952c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc535f239f41b91344c391a5c9f3e59516e89db7d230004768e7c8a09611952c", kill_on_drop: false }`
[INFO] [stdout] fc535f239f41b91344c391a5c9f3e59516e89db7d230004768e7c8a09611952c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06afc7014e00b2ad58ee1302a4223c212345ffbeb111585c1f7c1fd9453d67bd
[INFO] running `Command { std: "docker" "start" "-a" "06afc7014e00b2ad58ee1302a4223c212345ffbeb111585c1f7c1fd9453d67bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling fst v0.4.4
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking radix_trie v0.2.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking whatlang v0.9.0
[INFO] [stderr]     Checking eudex v0.1.1
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking rust-stemmers v1.2.0
[INFO] [stderr]     Checking so_many_words v0.1.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.83s
[INFO] running `Command { std: "docker" "inspect" "06afc7014e00b2ad58ee1302a4223c212345ffbeb111585c1f7c1fd9453d67bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06afc7014e00b2ad58ee1302a4223c212345ffbeb111585c1f7c1fd9453d67bd", kill_on_drop: false }`
[INFO] [stdout] 06afc7014e00b2ad58ee1302a4223c212345ffbeb111585c1f7c1fd9453d67bd
[INFO] checking so_many_words-0.1.12 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate so_many_words 0.1.12 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate so_many_words 0.1.12 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate so_many_words 0.1.12
[INFO] finished tweaking crates.io crate so_many_words 0.1.12
[INFO] tweaked toml for crates.io crate so_many_words 0.1.12 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate so_many_words 0.1.12 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a1aca399b99c203bfadf1544f56b404a45f49b0e1c64bccdff44b0b1e1f494d
[INFO] running `Command { std: "docker" "start" "-a" "0a1aca399b99c203bfadf1544f56b404a45f49b0e1c64bccdff44b0b1e1f494d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a1aca399b99c203bfadf1544f56b404a45f49b0e1c64bccdff44b0b1e1f494d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a1aca399b99c203bfadf1544f56b404a45f49b0e1c64bccdff44b0b1e1f494d", kill_on_drop: false }`
[INFO] [stdout] 0a1aca399b99c203bfadf1544f56b404a45f49b0e1c64bccdff44b0b1e1f494d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d05df795cdce2933ba0bd2dda49c7007faebe6593e46209f64585d09f6c8c07f
[INFO] running `Command { std: "docker" "start" "-a" "d05df795cdce2933ba0bd2dda49c7007faebe6593e46209f64585d09f6c8c07f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.18
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]     Checking ahash v0.3.8
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]     Checking smallvec v1.4.0
[INFO] [stderr]    Compiling fst v0.4.4
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]     Checking nibble_vec v0.1.0
[INFO] [stderr]     Checking endian-type v0.1.2
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking radix_trie v0.2.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking eudex v0.1.1
[INFO] [stderr]     Checking whatlang v0.9.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking regex v1.3.9
[INFO] [stderr]     Checking rust-stemmers v1.2.0
[INFO] [stderr]     Checking so_many_words v0.1.12 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 22.54s
[INFO] running `Command { std: "docker" "inspect" "d05df795cdce2933ba0bd2dda49c7007faebe6593e46209f64585d09f6c8c07f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d05df795cdce2933ba0bd2dda49c7007faebe6593e46209f64585d09f6c8c07f", kill_on_drop: false }`
[INFO] [stdout] d05df795cdce2933ba0bd2dda49c7007faebe6593e46209f64585d09f6c8c07f