[INFO] fetching crate iter-tree 0.1.10...
[INFO] testing iter-tree-0.1.10 against try#8de4c7234dd9b97c9d76b58671343fdbbc9a433e+target=x86_64-unknown-linux-musl for musl_upgrade_1_2_5_with_libc_patch_0
[INFO] extracting crate iter-tree 0.1.10 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate iter-tree 0.1.10
[INFO] finished tweaking crates.io crate iter-tree 0.1.10
[INFO] tweaked toml for crates.io crate iter-tree 0.1.10 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate iter-tree 0.1.10 on toolchain 8de4c7234dd9b97c9d76b58671343fdbbc9a433e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c1d8799a5228b338994b30fc9ea4618716f7e13d212a5ce95e9f0d2c987ce120
[INFO] running `Command { std: "docker" "start" "-a" "c1d8799a5228b338994b30fc9ea4618716f7e13d212a5ce95e9f0d2c987ce120", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c1d8799a5228b338994b30fc9ea4618716f7e13d212a5ce95e9f0d2c987ce120", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1d8799a5228b338994b30fc9ea4618716f7e13d212a5ce95e9f0d2c987ce120", kill_on_drop: false }`
[INFO] [stdout] c1d8799a5228b338994b30fc9ea4618716f7e13d212a5ce95e9f0d2c987ce120
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "build" "--frozen" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] 7a6c60ec1bb0c56a06083465221060c6dd992221036a6fc98d79c7537b8753fb
[INFO] running `Command { std: "docker" "start" "-a" "7a6c60ec1bb0c56a06083465221060c6dd992221036a6fc98d79c7537b8753fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling iter-tree v0.1.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "7a6c60ec1bb0c56a06083465221060c6dd992221036a6fc98d79c7537b8753fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a6c60ec1bb0c56a06083465221060c6dd992221036a6fc98d79c7537b8753fb", kill_on_drop: false }`
[INFO] [stdout] 7a6c60ec1bb0c56a06083465221060c6dd992221036a6fc98d79c7537b8753fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--no-run" "--message-format=json" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] b5f8ac11cd678287f26fc36f45c728cc2b17d99f154408af7deab1dd99ab4c3e
[INFO] running `Command { std: "docker" "start" "-a" "b5f8ac11cd678287f26fc36f45c728cc2b17d99f154408af7deab1dd99ab4c3e", kill_on_drop: false }`
[INFO] [stderr]    Compiling iter-tree v0.1.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "b5f8ac11cd678287f26fc36f45c728cc2b17d99f154408af7deab1dd99ab4c3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5f8ac11cd678287f26fc36f45c728cc2b17d99f154408af7deab1dd99ab4c3e", kill_on_drop: false }`
[INFO] [stdout] b5f8ac11cd678287f26fc36f45c728cc2b17d99f154408af7deab1dd99ab4c3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+8de4c7234dd9b97c9d76b58671343fdbbc9a433e" "test" "--frozen" "--target" "x86_64-unknown-linux-musl", kill_on_drop: false }`
[INFO] [stdout] b136b206a37c3b418042056ce861f0e6ddebc9978735aec8e3cc82124ac55dea
[INFO] running `Command { std: "docker" "start" "-a" "b136b206a37c3b418042056ce861f0e6ddebc9978735aec8e3cc82124ac55dea", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/x86_64-unknown-linux-musl/debug/deps/iter_tree-10c528a498a5241e)
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test tests::vec::basic ... ok
[INFO] [stdout] test tests::vec::correct_stack ... ok
[INFO] [stdout] test tests::vec::incorrect_stack ... ok
[INFO] [stdout] test tests::vec::with_fn_mut ... ok
[INFO] [stdout] test tests::vec::iter ... 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] running `Command { std: "docker" "inspect" "b136b206a37c3b418042056ce861f0e6ddebc9978735aec8e3cc82124ac55dea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b136b206a37c3b418042056ce861f0e6ddebc9978735aec8e3cc82124ac55dea", kill_on_drop: false }`
[INFO] [stdout] b136b206a37c3b418042056ce861f0e6ddebc9978735aec8e3cc82124ac55dea