[INFO] fetching crate rusty-rl 0.1.2...
[INFO] checking rusty-rl-0.1.2 against try#998b6603a58e47f42ccce7a67943234e96b6839e for pr-143170
[INFO] extracting crate rusty-rl 0.1.2 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate rusty-rl 0.1.2
[INFO] finished tweaking crates.io crate rusty-rl 0.1.2
[INFO] tweaked toml for crates.io crate rusty-rl 0.1.2 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rusty-rl 0.1.2 on toolchain 998b6603a58e47f42ccce7a67943234e96b6839e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rusty-rl 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 287678cdbc182580f92d568061c2edcdaa0e383b539180314bd7b53920d16c8b
[INFO] running `Command { std: "docker" "start" "-a" "287678cdbc182580f92d568061c2edcdaa0e383b539180314bd7b53920d16c8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "287678cdbc182580f92d568061c2edcdaa0e383b539180314bd7b53920d16c8b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "287678cdbc182580f92d568061c2edcdaa0e383b539180314bd7b53920d16c8b", kill_on_drop: false }`
[INFO] [stdout] 287678cdbc182580f92d568061c2edcdaa0e383b539180314bd7b53920d16c8b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+998b6603a58e47f42ccce7a67943234e96b6839e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 498ccf3ead465e42d46f3eaf9ca49fdbf8659351302c46a13a8d68ef024696fe
[INFO] running `Command { std: "docker" "start" "-a" "498ccf3ead465e42d46f3eaf9ca49fdbf8659351302c46a13a8d68ef024696fe", kill_on_drop: false }`
[INFO] [stderr]     Checking rusty-rl v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "498ccf3ead465e42d46f3eaf9ca49fdbf8659351302c46a13a8d68ef024696fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "498ccf3ead465e42d46f3eaf9ca49fdbf8659351302c46a13a8d68ef024696fe", kill_on_drop: false }`
[INFO] [stdout] 498ccf3ead465e42d46f3eaf9ca49fdbf8659351302c46a13a8d68ef024696fe