[INFO] fetching crate rustc_version 0.3.0...
[INFO] checking rustc_version-0.3.0 against try#b2f80f6008cdafc35b4472bd46afa16cc6b0cd63 for pr-79470
[INFO] extracting crate rustc_version 0.3.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate rustc_version 0.3.0 on toolchain b2f80f6008cdafc35b4472bd46afa16cc6b0cd63
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustc_version 0.3.0
[INFO] finished tweaking crates.io crate rustc_version 0.3.0
[INFO] tweaked toml for crates.io crate rustc_version 0.3.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] adcfbe1c49a31eb93d746dfd7b76276520988a4b2ecb490102868f6c58907245
[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" "adcfbe1c49a31eb93d746dfd7b76276520988a4b2ecb490102868f6c58907245", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "adcfbe1c49a31eb93d746dfd7b76276520988a4b2ecb490102868f6c58907245", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adcfbe1c49a31eb93d746dfd7b76276520988a4b2ecb490102868f6c58907245", kill_on_drop: false }`
[INFO] [stdout] adcfbe1c49a31eb93d746dfd7b76276520988a4b2ecb490102868f6c58907245
[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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b2f80f6008cdafc35b4472bd46afa16cc6b0cd63" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a9a003033d531a4d66f335e5ab8cf300d5aa62eef018624ca7ffa34e283fc2c
[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" "0a9a003033d531a4d66f335e5ab8cf300d5aa62eef018624ca7ffa34e283fc2c", kill_on_drop: false }`
[INFO] [stderr]     Checking ucd-trie v0.1.3
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]     Checking pest v2.1.3
[INFO] [stderr]     Checking semver-parser v0.10.1
[INFO] [stderr]     Checking semver v0.11.0
[INFO] [stderr]     Checking rustc_version v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.77s
[INFO] running `Command { std: "docker" "inspect" "0a9a003033d531a4d66f335e5ab8cf300d5aa62eef018624ca7ffa34e283fc2c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a9a003033d531a4d66f335e5ab8cf300d5aa62eef018624ca7ffa34e283fc2c", kill_on_drop: false }`
[INFO] [stdout] 0a9a003033d531a4d66f335e5ab8cf300d5aa62eef018624ca7ffa34e283fc2c