[INFO] fetching crate ouroboros 0.8.3...
[INFO] checking ouroboros-0.8.3 against master#a836d9b6413d9d593be6c09463ff8c4c70e56599 for pr-84037
[INFO] extracting crate ouroboros 0.8.3 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate ouroboros 0.8.3 on toolchain a836d9b6413d9d593be6c09463ff8c4c70e56599
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ouroboros 0.8.3
[INFO] finished tweaking crates.io crate ouroboros 0.8.3
[INFO] tweaked toml for crates.io crate ouroboros 0.8.3 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f00d626f408020b7f9f956339fc41d5cc50eb401e57a2b17e9cf6d2b6024fe1d
[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" "f00d626f408020b7f9f956339fc41d5cc50eb401e57a2b17e9cf6d2b6024fe1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f00d626f408020b7f9f956339fc41d5cc50eb401e57a2b17e9cf6d2b6024fe1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f00d626f408020b7f9f956339fc41d5cc50eb401e57a2b17e9cf6d2b6024fe1d", kill_on_drop: false }`
[INFO] [stdout] f00d626f408020b7f9f956339fc41d5cc50eb401e57a2b17e9cf6d2b6024fe1d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a836d9b6413d9d593be6c09463ff8c4c70e56599" "check" "--frozen" "--all" "--all-targets" "--message-format=json", 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] 73b032fca88a1eb63dddf5dcfeeace9a6a0858a3e5ae73760dd4e86cb62f4708
[INFO] running `Command { std: "docker" "start" "-a" "73b032fca88a1eb63dddf5dcfeeace9a6a0858a3e5ae73760dd4e86cb62f4708", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]    Compiling regex-syntax v0.6.23
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling aho-corasick v0.7.15
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling regex v1.4.6
[INFO] [stderr]    Compiling Inflector v0.11.4
[INFO] [stderr]    Compiling ouroboros_macro v0.8.3
[INFO] [stderr]     Checking ouroboros v0.8.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 36.41s
[INFO] running `Command { std: "docker" "inspect" "73b032fca88a1eb63dddf5dcfeeace9a6a0858a3e5ae73760dd4e86cb62f4708", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73b032fca88a1eb63dddf5dcfeeace9a6a0858a3e5ae73760dd4e86cb62f4708", kill_on_drop: false }`
[INFO] [stdout] 73b032fca88a1eb63dddf5dcfeeace9a6a0858a3e5ae73760dd4e86cb62f4708