[INFO] cloning repository https://github.com/forfd8960/smart-pointers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/forfd8960/smart-pointers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fforfd8960%2Fsmart-pointers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fforfd8960%2Fsmart-pointers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 66dae414b94f19b32c5053898f64ebd9766eb38d
[INFO] testing forfd8960/smart-pointers against 1.86.0 for beta-1.87-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fforfd8960%2Fsmart-pointers" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/forfd8960/smart-pointers on toolchain 1.86.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.86.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/forfd8960/smart-pointers
[INFO] finished tweaking git repo https://github.com/forfd8960/smart-pointers
[INFO] tweaked toml for git repo https://github.com/forfd8960/smart-pointers written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/forfd8960/smart-pointers 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" "+1.86.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 86a0ae19b64db1926135861402f38e2c402a8ed6743120aaf1e3a93d3913e976
[INFO] running `Command { std: "docker" "start" "-a" "86a0ae19b64db1926135861402f38e2c402a8ed6743120aaf1e3a93d3913e976", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "86a0ae19b64db1926135861402f38e2c402a8ed6743120aaf1e3a93d3913e976", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86a0ae19b64db1926135861402f38e2c402a8ed6743120aaf1e3a93d3913e976", kill_on_drop: false }`
[INFO] [stdout] 86a0ae19b64db1926135861402f38e2c402a8ed6743120aaf1e3a93d3913e976
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cd20f679807e0bfb06d654010b617b50531f520abd421936fca04474ebb61a0d
[INFO] running `Command { std: "docker" "start" "-a" "cd20f679807e0bfb06d654010b617b50531f520abd421936fca04474ebb61a0d", kill_on_drop: false }`
[INFO] [stderr]    Compiling smart-pointers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]  --> src/examples/rc2.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Cons(T, Rc<List<T>>),
[INFO] [stdout]   |     ----    ^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 5 -     Cons(T, Rc<List<T>>),
[INFO] [stdout] 5 +     Cons(T, ()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "cd20f679807e0bfb06d654010b617b50531f520abd421936fca04474ebb61a0d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd20f679807e0bfb06d654010b617b50531f520abd421936fca04474ebb61a0d", kill_on_drop: false }`
[INFO] [stdout] cd20f679807e0bfb06d654010b617b50531f520abd421936fca04474ebb61a0d
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2a10869c44e09865a43316b4a73c29ea1ac1c21f1816a1f1eab91764f8d7f436
[INFO] running `Command { std: "docker" "start" "-a" "2a10869c44e09865a43316b4a73c29ea1ac1c21f1816a1f1eab91764f8d7f436", kill_on_drop: false }`
[INFO] [stderr]    Compiling smart-pointers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `1` is never read
[INFO] [stdout]  --> src/examples/rc2.rs:5:13
[INFO] [stdout]   |
[INFO] [stdout] 5 |     Cons(T, Rc<List<T>>),
[INFO] [stdout]   |     ----    ^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     field in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 5 -     Cons(T, Rc<List<T>>),
[INFO] [stdout] 5 +     Cons(T, ()),
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `Command { std: "docker" "inspect" "2a10869c44e09865a43316b4a73c29ea1ac1c21f1816a1f1eab91764f8d7f436", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2a10869c44e09865a43316b4a73c29ea1ac1c21f1816a1f1eab91764f8d7f436", kill_on_drop: false }`
[INFO] [stdout] 2a10869c44e09865a43316b4a73c29ea1ac1c21f1816a1f1eab91764f8d7f436
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+1.86.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8f2391ace141c57dd8c5d6f74ad551cbf54de419a7145c5439d29e1c6d6ee360
[INFO] running `Command { std: "docker" "start" "-a" "8f2391ace141c57dd8c5d6f74ad551cbf54de419a7145c5439d29e1c6d6ee360", kill_on_drop: false }`
[INFO] [stderr] warning: field `1` is never read
[INFO] [stderr]  --> src/examples/rc2.rs:5:13
[INFO] [stderr]   |
[INFO] [stderr] 5 |     Cons(T, Rc<List<T>>),
[INFO] [stderr]   |     ----    ^^^^^^^^^^^
[INFO] [stderr]   |     |
[INFO] [stderr]   |     field in this variant
[INFO] [stderr]   |
[INFO] [stderr]   = note: `List` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stderr]   |
[INFO] [stderr] 5 -     Cons(T, Rc<List<T>>),
[INFO] [stderr] 5 +     Cons(T, ()),
[INFO] [stderr]   |
[INFO] [stderr] 
[INFO] [stderr] warning: `smart-pointers` (bin "rc2" test) generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/examples/box1.rs (/opt/rustwide/target/debug/deps/box1-27aa29c408a2f87e)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/examples/box2.rs (/opt/rustwide/target/debug/deps/box2-7e5d24d8b3ce6183)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/examples/box3.rs (/opt/rustwide/target/debug/deps/box3-ce6ee321b64dc2ab)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/examples/rc2.rs (/opt/rustwide/target/debug/deps/rc2-0e834dfeda84971a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/examples/refcell.rs (/opt/rustwide/target/debug/deps/refcell1-89e61d0b957de253)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/smart_pointers-160e7c6ca1e9eba9)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8f2391ace141c57dd8c5d6f74ad551cbf54de419a7145c5439d29e1c6d6ee360", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f2391ace141c57dd8c5d6f74ad551cbf54de419a7145c5439d29e1c6d6ee360", kill_on_drop: false }`
[INFO] [stdout] 8f2391ace141c57dd8c5d6f74ad551cbf54de419a7145c5439d29e1c6d6ee360