[INFO] cloning repository https://github.com/security-union/recursive-types
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/security-union/recursive-types" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsecurity-union%2Frecursive-types", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsecurity-union%2Frecursive-types'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2035f6a90544b7c6155f6022d799cbc90744f995
[INFO] checking security-union/recursive-types against master#05eac57ef6668c9d181b65aceb96b1e7881f60be for pr-127656
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsecurity-union%2Frecursive-types" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/security-union/recursive-types on toolchain 05eac57ef6668c9d181b65aceb96b1e7881f60be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+05eac57ef6668c9d181b65aceb96b1e7881f60be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/security-union/recursive-types
[INFO] finished tweaking git repo https://github.com/security-union/recursive-types
[INFO] tweaked toml for git repo https://github.com/security-union/recursive-types written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/security-union/recursive-types 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" "+05eac57ef6668c9d181b65aceb96b1e7881f60be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking security-union/recursive-types against try#0c9c19b42881b7ee3d3f268d2369726c7f8dddfd for pr-127656
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsecurity-union%2Frecursive-types" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/security-union/recursive-types on toolchain 0c9c19b42881b7ee3d3f268d2369726c7f8dddfd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c9c19b42881b7ee3d3f268d2369726c7f8dddfd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/security-union/recursive-types
[INFO] finished tweaking git repo https://github.com/security-union/recursive-types
[INFO] tweaked toml for git repo https://github.com/security-union/recursive-types written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/security-union/recursive-types 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" "+0c9c19b42881b7ee3d3f268d2369726c7f8dddfd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+0c9c19b42881b7ee3d3f268d2369726c7f8dddfd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a045ff8caa3bd5759ff593ce2d70ad7ebc8ea975bb3039ed126e370050606556
[INFO] running `Command { std: "docker" "start" "-a" "a045ff8caa3bd5759ff593ce2d70ad7ebc8ea975bb3039ed126e370050606556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a045ff8caa3bd5759ff593ce2d70ad7ebc8ea975bb3039ed126e370050606556", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a045ff8caa3bd5759ff593ce2d70ad7ebc8ea975bb3039ed126e370050606556", kill_on_drop: false }`
[INFO] [stdout] a045ff8caa3bd5759ff593ce2d70ad7ebc8ea975bb3039ed126e370050606556
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+0c9c19b42881b7ee3d3f268d2369726c7f8dddfd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6f7c4ed1d3a9ecd0e27ebc12b99f0e8882e492928c8485bb3578b8dcc493164
[INFO] running `Command { std: "docker" "start" "-a" "b6f7c4ed1d3a9ecd0e27ebc12b99f0e8882e492928c8485bb3578b8dcc493164", kill_on_drop: false }`
[INFO] [stderr]     Checking recursive-types v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `my_matryoshka`
[INFO] [stdout]  --> src/bin/works.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let my_matryoshka = Matryoshka::Inner(
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_matryoshka`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `my_matryoshka`
[INFO] [stdout]  --> src/bin/works.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let my_matryoshka = Matryoshka::Inner(
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_matryoshka`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]  --> src/bin/works.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 |     Inner(i32, Box<Matryoshka>),
[INFO] [stdout]   |     ----- ^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     fields in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]   |
[INFO] [stdout] 2 |     Inner((), ()),
[INFO] [stdout]   |           ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]  --> src/bin/works.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 |     Inner(i32, Box<Matryoshka>),
[INFO] [stdout]   |     ----- ^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout]   |     |
[INFO] [stdout]   |     fields in this variant
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]   |
[INFO] [stdout] 2 |     Inner((), ()),
[INFO] [stdout]   |           ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0072]: recursive type `Matryoshka` has infinite size
[INFO] [stdout]  --> src/bin/broken.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Matryoshka {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^
[INFO] [stdout] 2 |     Inner(i32, Matryoshka),
[INFO] [stdout]   |                ---------- recursive without indirection
[INFO] [stdout]   |
[INFO] [stdout] help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to break the cycle
[INFO] [stdout]   |
[INFO] [stdout] 2 |     Inner(i32, Box<Matryoshka>),
[INFO] [stdout]   |                ++++          +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0072]: recursive type `Matryoshka` has infinite size
[INFO] [stdout]  --> src/bin/broken.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Matryoshka {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^
[INFO] [stdout] 2 |     Inner(i32, Matryoshka),
[INFO] [stdout]   |                ---------- recursive without indirection
[INFO] [stdout]   |
[INFO] [stdout] help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to break the cycle
[INFO] [stdout]   |
[INFO] [stdout] 2 |     Inner(i32, Box<Matryoshka>),
[INFO] [stdout]   |                ++++          +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `my_matryoshka`
[INFO] [stdout]  --> src/bin/broken.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let my_matryoshka = Matryoshka::Inner(42, Matryoshka::Inner(43, Matryoshka::Nil));
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_matryoshka`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `my_matryoshka`
[INFO] [stdout]  --> src/bin/broken.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let my_matryoshka = Matryoshka::Inner(42, Matryoshka::Inner(43, Matryoshka::Nil));
[INFO] [stdout]   |         ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_my_matryoshka`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0391]: cycle detected when computing when `Matryoshka` needs drop
[INFO] [stdout]  --> src/bin/broken.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Matryoshka {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: ...which immediately requires computing when `Matryoshka` needs drop again
[INFO] [stdout]   = note: cycle used when computing whether `Matryoshka` needs drop
[INFO] [stdout]   = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0391]: cycle detected when computing when `Matryoshka` needs drop
[INFO] [stdout]  --> src/bin/broken.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | enum Matryoshka {
[INFO] [stdout]   | ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: ...which immediately requires computing when `Matryoshka` needs drop again
[INFO] [stdout]   = note: cycle used when computing whether `Matryoshka` needs drop
[INFO] [stdout]   = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0072, E0391.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0072`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0072, E0391.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0072`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `recursive-types` (bin "broken" test) due to 3 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `recursive-types` (bin "broken") due to 3 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "b6f7c4ed1d3a9ecd0e27ebc12b99f0e8882e492928c8485bb3578b8dcc493164", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6f7c4ed1d3a9ecd0e27ebc12b99f0e8882e492928c8485bb3578b8dcc493164", kill_on_drop: false }`
[INFO] [stdout] b6f7c4ed1d3a9ecd0e27ebc12b99f0e8882e492928c8485bb3578b8dcc493164