[INFO] fetching crate stakker_mio 0.1.3...
[INFO] checking stakker_mio-0.1.3 against try#0ab79c4b48ad19260fa46623f452c1b403a360e8 for pr-74315
[INFO] extracting crate stakker_mio 0.1.3 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate stakker_mio 0.1.3 on toolchain 0ab79c4b48ad19260fa46623f452c1b403a360e8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stakker_mio 0.1.3
[INFO] finished tweaking crates.io crate stakker_mio 0.1.3
[INFO] tweaked toml for crates.io crate stakker_mio 0.1.3 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded qcell v0.4.1
[INFO] [stderr]   Downloaded stakker v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c437c16430b5f5ad5fb2d81aa2c34bb5e3a7c2ccc4e2c56305ee76fe731c73b7
[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" "c437c16430b5f5ad5fb2d81aa2c34bb5e3a7c2ccc4e2c56305ee76fe731c73b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c437c16430b5f5ad5fb2d81aa2c34bb5e3a7c2ccc4e2c56305ee76fe731c73b7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c437c16430b5f5ad5fb2d81aa2c34bb5e3a7c2ccc4e2c56305ee76fe731c73b7", kill_on_drop: false }`
[INFO] [stdout] c437c16430b5f5ad5fb2d81aa2c34bb5e3a7c2ccc4e2c56305ee76fe731c73b7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+0ab79c4b48ad19260fa46623f452c1b403a360e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7c5943b11d07aa80025dba5b0d03b7f4e4d8e09fdfb66d30c53f2e3f050a3f9d
[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" "7c5943b11d07aa80025dba5b0d03b7f4e4d8e09fdfb66d30c53f2e3f050a3f9d", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell v1.4.0
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking anymap v0.12.1
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]     Checking qcell v0.4.1
[INFO] [stderr]     Checking mio v0.7.0
[INFO] [stderr]     Checking stakker v0.1.2
[INFO] [stderr]     Checking stakker_mio v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.20s
[INFO] running `Command { std: "docker" "inspect" "7c5943b11d07aa80025dba5b0d03b7f4e4d8e09fdfb66d30c53f2e3f050a3f9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c5943b11d07aa80025dba5b0d03b7f4e4d8e09fdfb66d30c53f2e3f050a3f9d", kill_on_drop: false }`
[INFO] [stdout] 7c5943b11d07aa80025dba5b0d03b7f4e4d8e09fdfb66d30c53f2e3f050a3f9d