[INFO] fetching crate gamma 0.6.1...
[INFO] checking gamma-0.6.1 against master#db870ea71b6dcc7a91b999420b88f41d3cdd13e1 for pr-75192
[INFO] extracting crate gamma 0.6.1 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate gamma 0.6.1 on toolchain db870ea71b6dcc7a91b999420b88f41d3cdd13e1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gamma 0.6.1
[INFO] finished tweaking crates.io crate gamma 0.6.1
[INFO] tweaked toml for crates.io crate gamma 0.6.1 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate gamma 0.6.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fbe09a0441709e363a7087c167813e43931c2b41efdf6342ddc78bb8fcbe55db
[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" "fbe09a0441709e363a7087c167813e43931c2b41efdf6342ddc78bb8fcbe55db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fbe09a0441709e363a7087c167813e43931c2b41efdf6342ddc78bb8fcbe55db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbe09a0441709e363a7087c167813e43931c2b41efdf6342ddc78bb8fcbe55db", kill_on_drop: false }`
[INFO] [stdout] fbe09a0441709e363a7087c167813e43931c2b41efdf6342ddc78bb8fcbe55db
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+db870ea71b6dcc7a91b999420b88f41d3cdd13e1" "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] 073497e50f798a8100cbf97c2c64234a7aabe11955d755c672e165dfdcac3724
[INFO] running `Command { std: "docker" "start" "-a" "073497e50f798a8100cbf97c2c64234a7aabe11955d755c672e165dfdcac3724", kill_on_drop: false }`
[INFO] [stderr]     Checking gamma v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.68s
[INFO] running `Command { std: "docker" "inspect" "073497e50f798a8100cbf97c2c64234a7aabe11955d755c672e165dfdcac3724", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "073497e50f798a8100cbf97c2c64234a7aabe11955d755c672e165dfdcac3724", kill_on_drop: false }`
[INFO] [stdout] 073497e50f798a8100cbf97c2c64234a7aabe11955d755c672e165dfdcac3724