[INFO] fetching crate titlecase 2.2.1...
[INFO] checking titlecase-2.2.1 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate titlecase 2.2.1 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate titlecase 2.2.1 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] removed /workspace/builds/worker-3-tc1/source/.cargo/config
[INFO] started tweaking crates.io crate titlecase 2.2.1
[INFO] finished tweaking crates.io crate titlecase 2.2.1
[INFO] tweaked toml for crates.io crate titlecase 2.2.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate titlecase 2.2.1 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] 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] d652841d7960ee64fda6091e435d972952519f8dde7b832d0be37f0562a5d9c9
[INFO] running `Command { std: "docker" "start" "-a" "d652841d7960ee64fda6091e435d972952519f8dde7b832d0be37f0562a5d9c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d652841d7960ee64fda6091e435d972952519f8dde7b832d0be37f0562a5d9c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d652841d7960ee64fda6091e435d972952519f8dde7b832d0be37f0562a5d9c9", kill_on_drop: false }`
[INFO] [stdout] d652841d7960ee64fda6091e435d972952519f8dde7b832d0be37f0562a5d9c9
[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] 49bd76b2a02a297a453df00e42b55f28e93d2fce9a1e5a2791d67775a879734c
[INFO] running `Command { std: "docker" "start" "-a" "49bd76b2a02a297a453df00e42b55f28e93d2fce9a1e5a2791d67775a879734c", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking joinery v2.1.0
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking titlecase v2.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.62s
[INFO] running `Command { std: "docker" "inspect" "49bd76b2a02a297a453df00e42b55f28e93d2fce9a1e5a2791d67775a879734c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "49bd76b2a02a297a453df00e42b55f28e93d2fce9a1e5a2791d67775a879734c", kill_on_drop: false }`
[INFO] [stdout] 49bd76b2a02a297a453df00e42b55f28e93d2fce9a1e5a2791d67775a879734c
[INFO] checking titlecase-2.2.1 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate titlecase 2.2.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate titlecase 2.2.1 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] removed /workspace/builds/worker-3-tc2/source/.cargo/config
[INFO] started tweaking crates.io crate titlecase 2.2.1
[INFO] finished tweaking crates.io crate titlecase 2.2.1
[INFO] tweaked toml for crates.io crate titlecase 2.2.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate titlecase 2.2.1 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] 2b0586a01fc7b6e83e9b2ba42adff773460aa34fff7efb10083389682b831207
[INFO] running `Command { std: "docker" "start" "-a" "2b0586a01fc7b6e83e9b2ba42adff773460aa34fff7efb10083389682b831207", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2b0586a01fc7b6e83e9b2ba42adff773460aa34fff7efb10083389682b831207", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b0586a01fc7b6e83e9b2ba42adff773460aa34fff7efb10083389682b831207", kill_on_drop: false }`
[INFO] [stdout] 2b0586a01fc7b6e83e9b2ba42adff773460aa34fff7efb10083389682b831207
[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] 7d05e8aa3ae347c410489770a1b33d746d62d6fa7f62a52cb899947ba0e9b151
[INFO] running `Command { std: "docker" "start" "-a" "7d05e8aa3ae347c410489770a1b33d746d62d6fa7f62a52cb899947ba0e9b151", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking lazy_static v1.3.0
[INFO] [stderr]     Checking joinery v2.1.0
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking titlecase v2.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.95s
[INFO] running `Command { std: "docker" "inspect" "7d05e8aa3ae347c410489770a1b33d746d62d6fa7f62a52cb899947ba0e9b151", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d05e8aa3ae347c410489770a1b33d746d62d6fa7f62a52cb899947ba0e9b151", kill_on_drop: false }`
[INFO] [stdout] 7d05e8aa3ae347c410489770a1b33d746d62d6fa7f62a52cb899947ba0e9b151