[INFO] fetching crate musli-value 0.0.92...
[INFO] checking musli-value-0.0.92 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate musli-value 0.0.92 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate musli-value 0.0.92 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 musli-value 0.0.92
[INFO] finished tweaking crates.io crate musli-value 0.0.92
[INFO] tweaked toml for crates.io crate musli-value 0.0.92 written to /workspace/builds/worker-6-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]      Locking 20 packages
[INFO] [stderr]       Adding musli v0.0.92 (latest: v0.0.108)
[INFO] [stderr]       Adding musli-common v0.0.92 (latest: v0.0.108)
[INFO] [stderr]       Adding musli-macros v0.0.92 (latest: v0.0.108)
[INFO] [stderr]       Adding musli-storage v0.0.92 (latest: v0.0.108)
[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 musli-storage v0.0.92
[INFO] [stderr]   Downloaded musli-common v0.0.92
[INFO] [stderr]   Downloaded musli v0.0.92
[INFO] [stderr]   Downloaded musli-macros v0.0.92
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 669dbc355803cfd4341b72df6130c91aaceb60520b9cf0e0a0d4fc5e7e9f81f4
[INFO] running `Command { std: "docker" "start" "-a" "669dbc355803cfd4341b72df6130c91aaceb60520b9cf0e0a0d4fc5e7e9f81f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "669dbc355803cfd4341b72df6130c91aaceb60520b9cf0e0a0d4fc5e7e9f81f4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "669dbc355803cfd4341b72df6130c91aaceb60520b9cf0e0a0d4fc5e7e9f81f4", kill_on_drop: false }`
[INFO] [stdout] 669dbc355803cfd4341b72df6130c91aaceb60520b9cf0e0a0d4fc5e7e9f81f4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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] 76077b86c748dde42997e7340099f191ba1d22a2a013eee7f17bb3efe6a3b7f3
[INFO] running `Command { std: "docker" "start" "-a" "76077b86c748dde42997e7340099f191ba1d22a2a013eee7f17bb3efe6a3b7f3", kill_on_drop: false }`
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]     Checking lexical-util v0.8.5
[INFO] [stderr]     Checking lexical-parse-integer v0.8.6
[INFO] [stderr]     Checking lexical-write-integer v0.8.5
[INFO] [stderr]     Checking lexical-parse-float v0.8.5
[INFO] [stderr]     Checking lexical-write-float v0.8.5
[INFO] [stderr]     Checking lexical-core v0.8.5
[INFO] [stderr]     Checking lexical v6.1.1
[INFO] [stderr]    Compiling musli-macros v0.0.92
[INFO] [stderr]     Checking musli v0.0.92
[INFO] [stderr]     Checking musli-common v0.0.92
[INFO] [stderr]     Checking musli-storage v0.0.92
[INFO] [stderr]     Checking musli-value v0.0.92 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.59s
[INFO] running `Command { std: "docker" "inspect" "76077b86c748dde42997e7340099f191ba1d22a2a013eee7f17bb3efe6a3b7f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76077b86c748dde42997e7340099f191ba1d22a2a013eee7f17bb3efe6a3b7f3", kill_on_drop: false }`
[INFO] [stdout] 76077b86c748dde42997e7340099f191ba1d22a2a013eee7f17bb3efe6a3b7f3