[INFO] fetching crate pushback-iter 0.2.0...
[INFO] testing pushback-iter-0.2.0 against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] extracting crate pushback-iter 0.2.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate pushback-iter 0.2.0 on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f2496ed8eb5991b4a0938b60f8f1ae27d2e9351ed41b99b3e12824f7dfc3599d
[INFO] running `Command { std: "docker" "start" "-a" "f2496ed8eb5991b4a0938b60f8f1ae27d2e9351ed41b99b3e12824f7dfc3599d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2496ed8eb5991b4a0938b60f8f1ae27d2e9351ed41b99b3e12824f7dfc3599d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2496ed8eb5991b4a0938b60f8f1ae27d2e9351ed41b99b3e12824f7dfc3599d", kill_on_drop: false }`
[INFO] [stdout] f2496ed8eb5991b4a0938b60f8f1ae27d2e9351ed41b99b3e12824f7dfc3599d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5b4c4a826c33e318d0a27ed321f2d38bd6c3583be468aa0ea2ed6919ea3f487b
[INFO] running `Command { std: "docker" "start" "-a" "5b4c4a826c33e318d0a27ed321f2d38bd6c3583be468aa0ea2ed6919ea3f487b", kill_on_drop: false }`
[INFO] [stderr]    Compiling pushback-iter v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.25s
[INFO] running `Command { std: "docker" "inspect" "5b4c4a826c33e318d0a27ed321f2d38bd6c3583be468aa0ea2ed6919ea3f487b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b4c4a826c33e318d0a27ed321f2d38bd6c3583be468aa0ea2ed6919ea3f487b", kill_on_drop: false }`
[INFO] [stdout] 5b4c4a826c33e318d0a27ed321f2d38bd6c3583be468aa0ea2ed6919ea3f487b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db13353448e17824bc30c30f18a84bd3ffb4beda9555ff7b15361615d7b72051
[INFO] running `Command { std: "docker" "start" "-a" "db13353448e17824bc30c30f18a84bd3ffb4beda9555ff7b15361615d7b72051", kill_on_drop: false }`
[INFO] [stderr]    Compiling pushback-iter v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "db13353448e17824bc30c30f18a84bd3ffb4beda9555ff7b15361615d7b72051", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db13353448e17824bc30c30f18a84bd3ffb4beda9555ff7b15361615d7b72051", kill_on_drop: false }`
[INFO] [stdout] db13353448e17824bc30c30f18a84bd3ffb4beda9555ff7b15361615d7b72051
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e5726c2141b7b41ec87cbf8840858036011823cb8c1ea096ca79ab5dfa446f22
[INFO] running `Command { std: "docker" "start" "-a" "e5726c2141b7b41ec87cbf8840858036011823cb8c1ea096ca79ab5dfa446f22", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/pushback_iter-84c6da20424e2ce6)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::peek_nth ... ok
[INFO] [stdout] test tests::push_back ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests pushback-iter
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.35s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e5726c2141b7b41ec87cbf8840858036011823cb8c1ea096ca79ab5dfa446f22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5726c2141b7b41ec87cbf8840858036011823cb8c1ea096ca79ab5dfa446f22", kill_on_drop: false }`
[INFO] [stdout] e5726c2141b7b41ec87cbf8840858036011823cb8c1ea096ca79ab5dfa446f22