[INFO] fetching crate vsp 0.1.0...
[INFO] checking vsp-0.1.0 against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback
[INFO] extracting crate vsp 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate vsp 0.1.0 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 vsp 0.1.0
[INFO] finished tweaking crates.io crate vsp 0.1.0
[INFO] tweaked toml for crates.io crate vsp 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate vsp 0.1.0 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]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded flexbuffers v2.0.0
[INFO] [stderr]   Downloaded serde_yaml v0.8.20
[INFO] [stderr]   Downloaded atomic-polyfill v0.1.3
[INFO] [stderr]   Downloaded serde-pickle v0.6.3
[INFO] [stderr]   Downloaded postcard-cobs v0.1.5-pre
[INFO] [stderr]   Downloaded serde_bytes v0.11.5
[INFO] [stderr]   Downloaded postcard v0.7.2
[INFO] [stderr]   Downloaded iter-read v0.3.0
[INFO] [stderr]   Downloaded bson v2.0.0
[INFO] [stderr]   Downloaded heapless v0.7.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 2d17925cef918e1283334a45284f1ce738a0e4d52a7f9d643bf1b770d771fea1
[INFO] running `Command { std: "docker" "start" "-a" "2d17925cef918e1283334a45284f1ce738a0e4d52a7f9d643bf1b770d771fea1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2d17925cef918e1283334a45284f1ce738a0e4d52a7f9d643bf1b770d771fea1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d17925cef918e1283334a45284f1ce738a0e4d52a7f9d643bf1b770d771fea1", kill_on_drop: false }`
[INFO] [stdout] 2d17925cef918e1283334a45284f1ce738a0e4d52a7f9d643bf1b770d771fea1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 7f1f067d668dd27370983dff7aaab13acf072fa2fac628225d0e0707772b85d8
[INFO] running `Command { std: "docker" "start" "-a" "7f1f067d668dd27370983dff7aaab13acf072fa2fac628225d0e0707772b85d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling ahash v0.7.4
[INFO] [stderr]    Compiling num-bigint v0.3.3
[INFO] [stderr]    Compiling heapless v0.7.5
[INFO] [stderr]     Checking hash32 v0.2.1
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling erased-serde v0.3.16
[INFO] [stderr]     Checking postcard-cobs v0.1.5-pre
[INFO] [stderr]     Checking iter-read v0.3.0
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking half v1.7.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.29
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling structopt-derive v0.4.16
[INFO] [stderr]    Compiling thiserror v1.0.29
[INFO] [stderr]     Checking structopt v0.3.23
[INFO] [stderr]     Checking serde_bytes v0.11.5
[INFO] [stderr]     Checking serde-pickle v0.6.3
[INFO] [stderr]     Checking serde_cbor v0.11.2
[INFO] [stderr]     Checking serde_yaml v0.8.20
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking ron v0.6.4
[INFO] [stderr]     Checking bincode v1.3.3
[INFO] [stderr]     Checking postcard v0.7.2
[INFO] [stderr]     Checking bson v2.0.0
[INFO] [stderr]    Compiling proc-macro-crate v1.0.0
[INFO] [stderr]    Compiling num_enum_derive v0.5.4
[INFO] [stderr]     Checking num_enum v0.5.4
[INFO] [stderr]     Checking flexbuffers v2.0.0
[INFO] [stderr]     Checking vsp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.41s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: bson v2.0.0
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 2`
[INFO] running `Command { std: "docker" "inspect" "7f1f067d668dd27370983dff7aaab13acf072fa2fac628225d0e0707772b85d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f1f067d668dd27370983dff7aaab13acf072fa2fac628225d0e0707772b85d8", kill_on_drop: false }`
[INFO] [stdout] 7f1f067d668dd27370983dff7aaab13acf072fa2fac628225d0e0707772b85d8