[INFO] fetching crate spectrum 0.0.0...
[INFO] checking spectrum-0.0.0 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate spectrum 0.0.0 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate spectrum 0.0.0 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate spectrum 0.0.0
[INFO] finished tweaking crates.io crate spectrum 0.0.0
[INFO] tweaked toml for crates.io crate spectrum 0.0.0 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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] 81c2e6a2a6155340391762d0841043c7df3506b8271069b239291b68c3f7a92a
[INFO] running `Command { std: "docker" "start" "-a" "81c2e6a2a6155340391762d0841043c7df3506b8271069b239291b68c3f7a92a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81c2e6a2a6155340391762d0841043c7df3506b8271069b239291b68c3f7a92a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81c2e6a2a6155340391762d0841043c7df3506b8271069b239291b68c3f7a92a", kill_on_drop: false }`
[INFO] [stdout] 81c2e6a2a6155340391762d0841043c7df3506b8271069b239291b68c3f7a92a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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] 37a2176baf19b869430a78693e056f43cbb5c875824bdb99290526b83f991df1
[INFO] running `Command { std: "docker" "start" "-a" "37a2176baf19b869430a78693e056f43cbb5c875824bdb99290526b83f991df1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking format-core v0.2.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking typed-arena v2.0.1
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking pretty v0.10.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking console v0.13.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling format-macro v0.2.4
[INFO] [stderr]    Compiling derive-new v0.5.9
[INFO] [stderr]     Checking format v0.2.4
[INFO] [stderr]     Checking spectrum v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 20.96s
[INFO] running `Command { std: "docker" "inspect" "37a2176baf19b869430a78693e056f43cbb5c875824bdb99290526b83f991df1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37a2176baf19b869430a78693e056f43cbb5c875824bdb99290526b83f991df1", kill_on_drop: false }`
[INFO] [stdout] 37a2176baf19b869430a78693e056f43cbb5c875824bdb99290526b83f991df1