[INFO] fetching crate ifcfg 0.1.0...
[INFO] checking ifcfg-0.1.0 against try#99a443d6903f71d521237d8acb5a3016b534d17b for pr-83354
[INFO] extracting crate ifcfg 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate ifcfg 0.1.0 on toolchain 99a443d6903f71d521237d8acb5a3016b534d17b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ifcfg 0.1.0
[INFO] finished tweaking crates.io crate ifcfg 0.1.0
[INFO] tweaked toml for crates.io crate ifcfg 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate ifcfg 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v1.0.63
[INFO] [stderr]   Downloaded serde_derive v1.0.124
[INFO] [stderr]   Downloaded libc v0.2.88
[INFO] [stderr]   Downloaded serde v1.0.124
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2406a408e42fa3c184512cb466ea9359b41d62905066719d8ae39e07eea431a
[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" "c2406a408e42fa3c184512cb466ea9359b41d62905066719d8ae39e07eea431a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2406a408e42fa3c184512cb466ea9359b41d62905066719d8ae39e07eea431a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2406a408e42fa3c184512cb466ea9359b41d62905066719d8ae39e07eea431a", kill_on_drop: false }`
[INFO] [stdout] c2406a408e42fa3c184512cb466ea9359b41d62905066719d8ae39e07eea431a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+99a443d6903f71d521237d8acb5a3016b534d17b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 475a03c04b5783d2ddcf1bf25c6e5a4768f77d26ee7d2fd8944b805e2e78f89e
[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" "475a03c04b5783d2ddcf1bf25c6e5a4768f77d26ee7d2fd8944b805e2e78f89e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.63
[INFO] [stderr]    Compiling serde v1.0.124
[INFO] [stderr]    Compiling serde_derive v1.0.124
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling ucd-util v0.1.8
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling libc v0.2.88
[INFO] [stderr]    Compiling pest v0.3.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]    Compiling handlebars v0.29.1
[INFO] [stderr]    Compiling ifcfg v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [optimized + debuginfo] target(s) in 57.36s
[INFO] running `Command { std: "docker" "inspect" "475a03c04b5783d2ddcf1bf25c6e5a4768f77d26ee7d2fd8944b805e2e78f89e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "475a03c04b5783d2ddcf1bf25c6e5a4768f77d26ee7d2fd8944b805e2e78f89e", kill_on_drop: false }`
[INFO] [stdout] 475a03c04b5783d2ddcf1bf25c6e5a4768f77d26ee7d2fd8944b805e2e78f89e