[INFO] fetching crate itoa 0.4.7...
[INFO] checking itoa-0.4.7 against master#3e826bb11228508fbe749e594038d6727208aa94 for pr-82322
[INFO] extracting crate itoa 0.4.7 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate itoa 0.4.7 on toolchain 3e826bb11228508fbe749e594038d6727208aa94
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate itoa 0.4.7
[INFO] finished tweaking crates.io crate itoa 0.4.7
[INFO] tweaked toml for crates.io crate itoa 0.4.7 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 669081dc561339ce8b42e7e7d9d8c5b0c4a481d1a79e272e2378c9185c8bd87b
[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" "669081dc561339ce8b42e7e7d9d8c5b0c4a481d1a79e272e2378c9185c8bd87b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "669081dc561339ce8b42e7e7d9d8c5b0c4a481d1a79e272e2378c9185c8bd87b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "669081dc561339ce8b42e7e7d9d8c5b0c4a481d1a79e272e2378c9185c8bd87b", kill_on_drop: false }`
[INFO] [stdout] 669081dc561339ce8b42e7e7d9d8c5b0c4a481d1a79e272e2378c9185c8bd87b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+3e826bb11228508fbe749e594038d6727208aa94" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 33b62f447fbfb090e40aa8d5ca172f1934395c42915507dba36da27e37a40150
[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" "33b62f447fbfb090e40aa8d5ca172f1934395c42915507dba36da27e37a40150", kill_on_drop: false }`
[INFO] [stderr]     Checking itoa v0.4.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "33b62f447fbfb090e40aa8d5ca172f1934395c42915507dba36da27e37a40150", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33b62f447fbfb090e40aa8d5ca172f1934395c42915507dba36da27e37a40150", kill_on_drop: false }`
[INFO] [stdout] 33b62f447fbfb090e40aa8d5ca172f1934395c42915507dba36da27e37a40150