[INFO] fetching crate pushback-iter 0.2.0...
[INFO] building pushback-iter-0.2.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate pushback-iter 0.2.0 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate pushback-iter 0.2.0
[INFO] finished tweaking crates.io crate pushback-iter 0.2.0
[INFO] tweaked toml for crates.io crate pushback-iter 0.2.0 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate pushback-iter 0.2.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 675bb487a597ec29b9d089c5d60ec0a475ed6d89ad31cf3307e9a5a88554e9ea
[INFO] running `Command { std: "docker" "start" "-a" "675bb487a597ec29b9d089c5d60ec0a475ed6d89ad31cf3307e9a5a88554e9ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "675bb487a597ec29b9d089c5d60ec0a475ed6d89ad31cf3307e9a5a88554e9ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "675bb487a597ec29b9d089c5d60ec0a475ed6d89ad31cf3307e9a5a88554e9ea", kill_on_drop: false }`
[INFO] [stdout] 675bb487a597ec29b9d089c5d60ec0a475ed6d89ad31cf3307e9a5a88554e9ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2186c5abff13e2c0502bc92772c542ccffe6e5ec96c79d1d2111cef6b7bb5057
[INFO] running `Command { std: "docker" "start" "-a" "2186c5abff13e2c0502bc92772c542ccffe6e5ec96c79d1d2111cef6b7bb5057", kill_on_drop: false }`
[INFO] [stderr]    Compiling pushback-iter v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "2186c5abff13e2c0502bc92772c542ccffe6e5ec96c79d1d2111cef6b7bb5057", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2186c5abff13e2c0502bc92772c542ccffe6e5ec96c79d1d2111cef6b7bb5057", kill_on_drop: false }`
[INFO] [stdout] 2186c5abff13e2c0502bc92772c542ccffe6e5ec96c79d1d2111cef6b7bb5057
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d84c21b6f1977e5f0df3f83ef6d38430b514e249ad939876c50c813cb130da2
[INFO] running `Command { std: "docker" "start" "-a" "6d84c21b6f1977e5f0df3f83ef6d38430b514e249ad939876c50c813cb130da2", kill_on_drop: false }`
[INFO] [stderr]    Compiling pushback-iter v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "6d84c21b6f1977e5f0df3f83ef6d38430b514e249ad939876c50c813cb130da2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d84c21b6f1977e5f0df3f83ef6d38430b514e249ad939876c50c813cb130da2", kill_on_drop: false }`
[INFO] [stdout] 6d84c21b6f1977e5f0df3f83ef6d38430b514e249ad939876c50c813cb130da2