[INFO] fetching crate gear_combos 1.0.4...
[INFO] checking gear_combos-1.0.4 against try#bb9dbf1d07454a99066eabaabd5819851281494b for pr-80920
[INFO] extracting crate gear_combos 1.0.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate gear_combos 1.0.4 on toolchain bb9dbf1d07454a99066eabaabd5819851281494b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gear_combos 1.0.4
[INFO] finished tweaking crates.io crate gear_combos 1.0.4
[INFO] tweaked toml for crates.io crate gear_combos 1.0.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate gear_combos 1.0.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+bb9dbf1d07454a99066eabaabd5819851281494b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+bb9dbf1d07454a99066eabaabd5819851281494b" "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] 837b8a4e4e96452d030c80f51ec2ef12d0fc143a14bfbff2b44c49ab62913d97
[INFO] running `Command { std: "docker" "start" "-a" "837b8a4e4e96452d030c80f51ec2ef12d0fc143a14bfbff2b44c49ab62913d97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "837b8a4e4e96452d030c80f51ec2ef12d0fc143a14bfbff2b44c49ab62913d97", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "837b8a4e4e96452d030c80f51ec2ef12d0fc143a14bfbff2b44c49ab62913d97", kill_on_drop: false }`
[INFO] [stdout] 837b8a4e4e96452d030c80f51ec2ef12d0fc143a14bfbff2b44c49ab62913d97
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+bb9dbf1d07454a99066eabaabd5819851281494b" "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] b8b4046801c1b1ca16347711bbfc9fdd27cc547c89af0399711441723dfa2aae
[INFO] running `Command { std: "docker" "start" "-a" "b8b4046801c1b1ca16347711bbfc9fdd27cc547c89af0399711441723dfa2aae", kill_on_drop: false }`
[INFO] [stderr]     Checking gear_combos v1.0.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "b8b4046801c1b1ca16347711bbfc9fdd27cc547c89af0399711441723dfa2aae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8b4046801c1b1ca16347711bbfc9fdd27cc547c89af0399711441723dfa2aae", kill_on_drop: false }`
[INFO] [stdout] b8b4046801c1b1ca16347711bbfc9fdd27cc547c89af0399711441723dfa2aae