[INFO] fetching crate perftree 0.1.2...
[INFO] checking perftree-0.1.2 against master#9503ea19edbf01b9435e80e17d60ce1b88390116 for pr-81782
[INFO] extracting crate perftree 0.1.2 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate perftree 0.1.2 on toolchain 9503ea19edbf01b9435e80e17d60ce1b88390116
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate perftree 0.1.2
[INFO] finished tweaking crates.io crate perftree 0.1.2
[INFO] tweaked toml for crates.io crate perftree 0.1.2 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate perftree 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 42884a8786a7c55fdff6f02a8e4a3dfb5c4146da4fb444fa0381c810bbdeb003
[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" "42884a8786a7c55fdff6f02a8e4a3dfb5c4146da4fb444fa0381c810bbdeb003", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "42884a8786a7c55fdff6f02a8e4a3dfb5c4146da4fb444fa0381c810bbdeb003", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42884a8786a7c55fdff6f02a8e4a3dfb5c4146da4fb444fa0381c810bbdeb003", kill_on_drop: false }`
[INFO] [stdout] 42884a8786a7c55fdff6f02a8e4a3dfb5c4146da4fb444fa0381c810bbdeb003
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+9503ea19edbf01b9435e80e17d60ce1b88390116" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c63cf464cf48069c5ba02735f1a0141cfe0ae731d21d9f7dcde620d1be5bb9b
[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" "0c63cf464cf48069c5ba02735f1a0141cfe0ae731d21d9f7dcde620d1be5bb9b", kill_on_drop: false }`
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking perftree v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
[INFO] running `Command { std: "docker" "inspect" "0c63cf464cf48069c5ba02735f1a0141cfe0ae731d21d9f7dcde620d1be5bb9b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c63cf464cf48069c5ba02735f1a0141cfe0ae731d21d9f7dcde620d1be5bb9b", kill_on_drop: false }`
[INFO] [stdout] 0c63cf464cf48069c5ba02735f1a0141cfe0ae731d21d9f7dcde620d1be5bb9b