[INFO] fetching crate memoiter 2.0.0...
[INFO] testing memoiter-2.0.0 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate memoiter 2.0.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate memoiter 2.0.0 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate memoiter 2.0.0
[INFO] finished tweaking crates.io crate memoiter 2.0.0
[INFO] tweaked toml for crates.io crate memoiter 2.0.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fcc9f358daa2b2ec4541d5a7e44820de0641322358737f6d23e725032168c7aa
[INFO] running `Command { std: "docker" "start" "-a" "fcc9f358daa2b2ec4541d5a7e44820de0641322358737f6d23e725032168c7aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fcc9f358daa2b2ec4541d5a7e44820de0641322358737f6d23e725032168c7aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fcc9f358daa2b2ec4541d5a7e44820de0641322358737f6d23e725032168c7aa", kill_on_drop: false }`
[INFO] [stdout] fcc9f358daa2b2ec4541d5a7e44820de0641322358737f6d23e725032168c7aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 86360a8a921f57ced44dd216b2261bbe6f4614bb3a9a6c2698f0efc13d52bf88
[INFO] running `Command { std: "docker" "start" "-a" "86360a8a921f57ced44dd216b2261bbe6f4614bb3a9a6c2698f0efc13d52bf88", kill_on_drop: false }`
[INFO] [stderr]    Compiling memoiter v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.15s
[INFO] running `Command { std: "docker" "inspect" "86360a8a921f57ced44dd216b2261bbe6f4614bb3a9a6c2698f0efc13d52bf88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86360a8a921f57ced44dd216b2261bbe6f4614bb3a9a6c2698f0efc13d52bf88", kill_on_drop: false }`
[INFO] [stdout] 86360a8a921f57ced44dd216b2261bbe6f4614bb3a9a6c2698f0efc13d52bf88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e4cc900c8bdfcc7c968f64c2d521dc1b3ac79c1fa9617172155b1b9818e402b5
[INFO] running `Command { std: "docker" "start" "-a" "e4cc900c8bdfcc7c968f64c2d521dc1b3ac79c1fa9617172155b1b9818e402b5", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memoiter v2.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.66s
[INFO] running `Command { std: "docker" "inspect" "e4cc900c8bdfcc7c968f64c2d521dc1b3ac79c1fa9617172155b1b9818e402b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4cc900c8bdfcc7c968f64c2d521dc1b3ac79c1fa9617172155b1b9818e402b5", kill_on_drop: false }`
[INFO] [stdout] e4cc900c8bdfcc7c968f64c2d521dc1b3ac79c1fa9617172155b1b9818e402b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0889ab5abfb76411882c352729d8888ff03ba2913965d379079bfa7da8b64bb2
[INFO] running `Command { std: "docker" "start" "-a" "0889ab5abfb76411882c352729d8888ff03ba2913965d379079bfa7da8b64bb2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/memoiter-d4f019222a682e69)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::test_factorial ... ok
[INFO] [stdout] test tests::test_fibonacci ... ok
[INFO] [stdout] test tests::test_len ... ok
[INFO] [stdout] test tests::test_prevec ... ok
[INFO] [stdout] test tests::test_slice ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests memoiter
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - MemoIter (line 27) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.40s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0889ab5abfb76411882c352729d8888ff03ba2913965d379079bfa7da8b64bb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0889ab5abfb76411882c352729d8888ff03ba2913965d379079bfa7da8b64bb2", kill_on_drop: false }`
[INFO] [stdout] 0889ab5abfb76411882c352729d8888ff03ba2913965d379079bfa7da8b64bb2