[INFO] cloning repository https://github.com/simbo1905/extension_methods
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/simbo1905/extension_methods" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimbo1905%2Fextension_methods", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimbo1905%2Fextension_methods'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 296854516f81850d2dd31dfec6ea8f4ac3d45957
[INFO] checking simbo1905/extension_methods against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsimbo1905%2Fextension_methods" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/simbo1905/extension_methods on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/simbo1905/extension_methods
[INFO] finished tweaking git repo https://github.com/simbo1905/extension_methods
[INFO] tweaked toml for git repo https://github.com/simbo1905/extension_methods written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/simbo1905/extension_methods already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3427dc057ce93267abc1abbf768a07edaa734971df2cae58be82a11f3b7ed289
[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" "3427dc057ce93267abc1abbf768a07edaa734971df2cae58be82a11f3b7ed289", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3427dc057ce93267abc1abbf768a07edaa734971df2cae58be82a11f3b7ed289", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3427dc057ce93267abc1abbf768a07edaa734971df2cae58be82a11f3b7ed289", kill_on_drop: false }`
[INFO] [stdout] 3427dc057ce93267abc1abbf768a07edaa734971df2cae58be82a11f3b7ed289
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb4f212d543e0797578e6090ff80f7221ece8140d028f5f45e8d2145e6ee72f9
[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" "bb4f212d543e0797578e6090ff80f7221ece8140d028f5f45e8d2145e6ee72f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking itoa v0.3.1
[INFO] [stderr]     Checking serde v1.0.10
[INFO] [stderr]     Checking num-traits v0.1.39
[INFO] [stderr]     Checking dtoa v0.4.1
[INFO] [stderr]     Checking some_library v0.1.0 (/opt/rustwide/workdir/some_library)
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling serde_derive_internals v0.15.1
[INFO] [stderr]    Compiling serde_derive v1.0.10
[INFO] [stderr]     Checking serde_json v1.0.2
[INFO] [stderr]     Checking some_extension v0.1.0 (/opt/rustwide/workdir/some_extension)
[INFO] [stderr]     Checking extension_methods v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.99s
[INFO] running `Command { std: "docker" "inspect" "bb4f212d543e0797578e6090ff80f7221ece8140d028f5f45e8d2145e6ee72f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb4f212d543e0797578e6090ff80f7221ece8140d028f5f45e8d2145e6ee72f9", kill_on_drop: false }`
[INFO] [stdout] bb4f212d543e0797578e6090ff80f7221ece8140d028f5f45e8d2145e6ee72f9