[INFO] fetching crate smelter 0.0.2...
[INFO] checking smelter-0.0.2 against try#9cfe725f0995b018340c519db1b2f3cf8a7e0631 for pr-81174
[INFO] extracting crate smelter 0.0.2 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate smelter 0.0.2 on toolchain 9cfe725f0995b018340c519db1b2f3cf8a7e0631
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate smelter 0.0.2
[INFO] finished tweaking crates.io crate smelter 0.0.2
[INFO] tweaked toml for crates.io crate smelter 0.0.2 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded semver v0.6.0
[INFO] [stderr]   Downloaded cargo_metadata v0.2.3
[INFO] [stderr]   Downloaded regex-syntax v0.4.2
[INFO] [stderr]   Downloaded syn v0.9.2
[INFO] [stderr]   Downloaded pulldown-cmark v0.0.15
[INFO] [stderr]   Downloaded unicode-xid v0.0.3
[INFO] [stderr]   Downloaded itertools v0.6.5
[INFO] [stderr]   Downloaded quine-mc_cluskey v0.2.4
[INFO] [stderr]   Downloaded clippy_lints v0.0.165
[INFO] [stderr]   Downloaded clippy v0.0.165
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "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] 9efb04092d770417876dfb35abbed06483de5941fc4a6ee8c6257bddd8da26fc
[INFO] running `Command { std: "docker" "start" "-a" "9efb04092d770417876dfb35abbed06483de5941fc4a6ee8c6257bddd8da26fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9efb04092d770417876dfb35abbed06483de5941fc4a6ee8c6257bddd8da26fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9efb04092d770417876dfb35abbed06483de5941fc4a6ee8c6257bddd8da26fc", kill_on_drop: false }`
[INFO] [stdout] 9efb04092d770417876dfb35abbed06483de5941fc4a6ee8c6257bddd8da26fc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+9cfe725f0995b018340c519db1b2f3cf8a7e0631" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 55dc28113094095dde00dc1fe142fabe0a787b2703ad2fcd7b944ce88986b3a7
[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" "55dc28113094095dde00dc1fe142fabe0a787b2703ad2fcd7b944ce88986b3a7", kill_on_drop: false }`
[INFO] [stderr]     Checking unicode-xid v0.0.3
[INFO] [stderr]     Checking quote v0.3.15
[INFO] [stderr]    Compiling syn v0.9.2
[INFO] [stderr]     Checking smelter v0.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.07s
[INFO] running `Command { std: "docker" "inspect" "55dc28113094095dde00dc1fe142fabe0a787b2703ad2fcd7b944ce88986b3a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55dc28113094095dde00dc1fe142fabe0a787b2703ad2fcd7b944ce88986b3a7", kill_on_drop: false }`
[INFO] [stdout] 55dc28113094095dde00dc1fe142fabe0a787b2703ad2fcd7b944ce88986b3a7