[INFO] fetching crate ccase 0.4.1...
[INFO] checking ccase-0.4.1 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate ccase 0.4.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate ccase 0.4.1 on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ccase 0.4.1
[INFO] finished tweaking crates.io crate ccase 0.4.1
[INFO] tweaked toml for crates.io crate ccase 0.4.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate ccase 0.4.1 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded predicates-core v1.0.5
[INFO] [stderr]   Downloaded terminal_size v0.2.3
[INFO] [stderr]   Downloaded is-terminal v0.4.1
[INFO] [stderr]   Downloaded termtree v0.4.0
[INFO] [stderr]   Downloaded predicates-tree v1.0.7
[INFO] [stderr]   Downloaded predicates v2.1.4
[INFO] [stderr]   Downloaded assert_cmd v2.0.7
[INFO] [stderr]   Downloaded unicode-segmentation v1.10.0
[INFO] [stderr]   Downloaded once_cell v1.16.0
[INFO] [stderr]   Downloaded serde v1.0.149
[INFO] [stderr]   Downloaded cc v1.0.77
[INFO] [stderr]   Downloaded clap v4.0.29
[INFO] [stderr]   Downloaded bstr v1.0.1
[INFO] [stderr]   Downloaded libc v0.2.138
[INFO] [stderr]   Downloaded rustix v0.36.5
[INFO] [stderr]   Downloaded linux-raw-sys v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4ffa419cb855b6bf02c9bef0fc68afa6ec4b26942c5bdd2387dfea95f5720abf
[INFO] running `Command { std: "docker" "start" "-a" "4ffa419cb855b6bf02c9bef0fc68afa6ec4b26942c5bdd2387dfea95f5720abf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4ffa419cb855b6bf02c9bef0fc68afa6ec4b26942c5bdd2387dfea95f5720abf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4ffa419cb855b6bf02c9bef0fc68afa6ec4b26942c5bdd2387dfea95f5720abf", kill_on_drop: false }`
[INFO] [stdout] 4ffa419cb855b6bf02c9bef0fc68afa6ec4b26942c5bdd2387dfea95f5720abf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 011b2485a9fa5b23c13fe3a43d210f566518dc435ecb8b295d69204b9156adb3
[INFO] running `Command { std: "docker" "start" "-a" "011b2485a9fa5b23c13fe3a43d210f566518dc435ecb8b295d69204b9156adb3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]    Compiling io-lifetimes v1.0.3
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]    Compiling rustix v0.36.5
[INFO] [stderr]     Checking linux-raw-sys v0.1.3
[INFO] [stderr]     Checking once_cell v1.16.0
[INFO] [stderr]     Checking predicates-core v1.0.5
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]     Checking clap_lex v0.3.0
[INFO] [stderr]     Checking unicode-segmentation v1.10.0
[INFO] [stderr]     Checking either v1.8.0
[INFO] [stderr]     Checking termtree v0.4.0
[INFO] [stderr]     Checking predicates-tree v1.0.7
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking aho-corasick v0.7.20
[INFO] [stderr]     Checking bstr v1.0.1
[INFO] [stderr]     Checking regex v1.7.0
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking wait-timeout v0.2.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking predicates v2.1.4
[INFO] [stderr]     Checking assert_cmd v2.0.7
[INFO] [stderr]     Checking is-terminal v0.4.1
[INFO] [stderr]     Checking terminal_size v0.2.3
[INFO] [stderr]     Checking convert_case v0.6.0
[INFO] [stderr]     Checking clap v4.0.29
[INFO] [stderr]     Checking ccase v0.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.83s
[INFO] running `Command { std: "docker" "inspect" "011b2485a9fa5b23c13fe3a43d210f566518dc435ecb8b295d69204b9156adb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "011b2485a9fa5b23c13fe3a43d210f566518dc435ecb8b295d69204b9156adb3", kill_on_drop: false }`
[INFO] [stdout] 011b2485a9fa5b23c13fe3a43d210f566518dc435ecb8b295d69204b9156adb3