[INFO] fetching crate rattler_digest 0.13.0...
[INFO] checking rattler_digest-0.13.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate rattler_digest 0.13.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate rattler_digest 0.13.0 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 rattler_digest 0.13.0
[INFO] finished tweaking crates.io crate rattler_digest 0.13.0
[INFO] tweaked toml for crates.io crate rattler_digest 0.13.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 111 packages
[INFO] [stderr]       Adding base64 v0.21.7 (latest: v0.22.0)
[INFO] [stderr]       Adding generic-array v0.14.7 (latest: v1.0.0)
[INFO] [stderr]       Adding hashbrown v0.12.3 (latest: v0.14.3)
[INFO] [stderr]       Adding indexmap v1.9.3 (latest: v2.2.6)
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.34.0)
[INFO] [stderr]       Adding strsim v0.10.0 (latest: v0.11.1)
[INFO] [stderr]       Adding windows-core v0.52.0 (latest: v0.55.0)
[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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 9d19c3b188e70e6f274d1cef690072f0d1c8204a9b23c49ffce484db087421ff
[INFO] running `Command { std: "docker" "start" "-a" "9d19c3b188e70e6f274d1cef690072f0d1c8204a9b23c49ffce484db087421ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9d19c3b188e70e6f274d1cef690072f0d1c8204a9b23c49ffce484db087421ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d19c3b188e70e6f274d1cef690072f0d1c8204a9b23c49ffce484db087421ff", kill_on_drop: false }`
[INFO] [stdout] 9d19c3b188e70e6f274d1cef690072f0d1c8204a9b23c49ffce484db087421ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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] 81f527d34bf48dce5919de4561c01f18694425eeef79121d0505c7374b09aa11
[INFO] running `Command { std: "docker" "start" "-a" "81f527d34bf48dce5919de4561c01f18694425eeef79121d0505c7374b09aa11", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.22
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]    Compiling darling_core v0.20.8
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling regex-syntax v0.8.3
[INFO] [stderr]     Checking futures-io v0.3.30
[INFO] [stderr]    Compiling relative-path v1.9.2
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking sha2 v0.10.8
[INFO] [stderr]     Checking md-5 v0.10.6
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]     Checking blake2 v0.10.6
[INFO] [stderr]     Checking futures-timer v3.0.3
[INFO] [stderr]    Compiling rstest_macros v0.18.2
[INFO] [stderr]    Compiling regex-automata v0.4.6
[INFO] [stderr]    Compiling darling_macro v0.20.8
[INFO] [stderr]     Checking serde_json v1.0.115
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stderr]    Compiling darling v0.20.8
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]    Compiling serde_with_macros v3.7.0
[INFO] [stderr]    Compiling regex v1.10.4
[INFO] [stderr]     Checking serde_with v3.7.0
[INFO] [stderr]     Checking rattler_digest v0.13.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking rstest v0.18.2
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.00s
[INFO] running `Command { std: "docker" "inspect" "81f527d34bf48dce5919de4561c01f18694425eeef79121d0505c7374b09aa11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81f527d34bf48dce5919de4561c01f18694425eeef79121d0505c7374b09aa11", kill_on_drop: false }`
[INFO] [stdout] 81f527d34bf48dce5919de4561c01f18694425eeef79121d0505c7374b09aa11