[INFO] fetching crate cargo-snippet 0.6.5...
[INFO] checking cargo-snippet-0.6.5 against try#32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d for pr-83312
[INFO] extracting crate cargo-snippet 0.6.5 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate cargo-snippet 0.6.5 on toolchain 32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cargo-snippet 0.6.5
[INFO] finished tweaking crates.io crate cargo-snippet 0.6.5
[INFO] tweaked toml for crates.io crate cargo-snippet 0.6.5 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate cargo-snippet 0.6.5 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded term v0.6.1
[INFO] [stderr]   Downloaded bytecount v0.6.0
[INFO] [stderr]   Downloaded annotate-snippets v0.8.0
[INFO] [stderr]   Downloaded md-5 v0.8.0
[INFO] [stderr]   Downloaded hashbrown v0.8.1
[INFO] [stderr]   Downloaded annotate-snippets v0.6.1
[INFO] [stderr]   Downloaded ignore v0.4.16
[INFO] [stderr]   Downloaded termize v0.1.1
[INFO] [stderr]   Downloaded measureme v0.7.1
[INFO] [stderr]   Downloaded indexmap v1.5.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_target v664.0.0
[INFO] [stderr]   Downloaded psm v0.1.10
[INFO] [stderr]   Downloaded stacker v0.1.9
[INFO] [stderr]   Downloaded rustc-rayon v0.3.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_fs_util v664.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_arena v664.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_graphviz v664.0.0
[INFO] [stderr]   Downloaded rustfmt-config_proc_macro v0.2.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_serialize v664.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_index v664.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_ast_passes v664.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_lexer v664.0.0
[INFO] [stderr]   Downloaded rustc-rayon-core v0.3.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_macros v664.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_attr v664.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_errors v664.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_feature v664.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_expand v664.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_ast v664.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_data_structures v664.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_session v664.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_span v664.0.0
[INFO] [stderr]   Downloaded rustc-ap-rustc_parse v664.0.0
[INFO] [stderr]   Downloaded rustfmt-nightly v1.4.18
[INFO] [stderr]   Downloaded rustc-ap-rustc_ast_pretty v664.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b9a6be9549b308e452d3b73ea1da4e8535a74cfaf8269bbdfab440c12515a1e8
[INFO] running `Command { std: "docker" "start" "-a" "b9a6be9549b308e452d3b73ea1da4e8535a74cfaf8269bbdfab440c12515a1e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b9a6be9549b308e452d3b73ea1da4e8535a74cfaf8269bbdfab440c12515a1e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9a6be9549b308e452d3b73ea1da4e8535a74cfaf8269bbdfab440c12515a1e8", kill_on_drop: false }`
[INFO] [stdout] b9a6be9549b308e452d3b73ea1da4e8535a74cfaf8269bbdfab440c12515a1e8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:4f92631de1aa59f8320307485d3b3c869a5c90ab1d76ce2cffab9807b8c9a1fb" "/opt/rustwide/cargo-home/bin/cargo" "+32cb8dc6fdc8140b91f4d17c4883e528db4e7e6d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e9c75d6ab0aaacfaf67867fb6884821ee1f03dc72b74e84fab03b063e60f42b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "2e9c75d6ab0aaacfaf67867fb6884821ee1f03dc72b74e84fab03b063e60f42b", kill_on_drop: false }`
[INFO] [stderr]     Checking cargo-snippet v0.6.5 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "2e9c75d6ab0aaacfaf67867fb6884821ee1f03dc72b74e84fab03b063e60f42b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e9c75d6ab0aaacfaf67867fb6884821ee1f03dc72b74e84fab03b063e60f42b", kill_on_drop: false }`
[INFO] [stdout] 2e9c75d6ab0aaacfaf67867fb6884821ee1f03dc72b74e84fab03b063e60f42b