[INFO] fetching crate moniker 0.5.0...
[INFO] checking moniker-0.5.0 against beta for pr-78714
[INFO] extracting crate moniker 0.5.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate moniker 0.5.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate moniker 0.5.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate moniker 0.5.0
[INFO] tweaked toml for crates.io crate moniker 0.5.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3d29278e70c0f0855ed997013bff5ba0472bfa664d27a8ec8d121bc2c1d239f2
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "3d29278e70c0f0855ed997013bff5ba0472bfa664d27a8ec8d121bc2c1d239f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3d29278e70c0f0855ed997013bff5ba0472bfa664d27a8ec8d121bc2c1d239f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d29278e70c0f0855ed997013bff5ba0472bfa664d27a8ec8d121bc2c1d239f2", kill_on_drop: false }`
[INFO] [stdout] 3d29278e70c0f0855ed997013bff5ba0472bfa664d27a8ec8d121bc2c1d239f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aadaee5809b0b328b1aea5fd26d50e81c298049b0472fa6411704cb982fbbdc3
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "aadaee5809b0b328b1aea5fd26d50e81c298049b0472fa6411704cb982fbbdc3", kill_on_drop: false }`
[INFO] [stderr]    Compiling moniker-derive v0.5.0
[INFO] [stderr]     Checking moniker v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> examples/lc_letrec.rs:4:1
[INFO] [stdout]   |
[INFO] [stdout] 4 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> examples/stlc.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `im::HashMap::<K, V>::singleton`: renamed to `unit` for consistency
[INFO] [stdout]    --> examples/stlc_data.rs:406:23
[INFO] [stdout]     |
[INFO] [stdout] 406 |             return Ok(Context::singleton(free_var.clone(), expected_ty.clone()));
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated associated function `im::HashMap::<K, V>::singleton`: renamed to `unit` for consistency
[INFO] [stdout]    --> examples/stlc_data_isorec.rs:485:23
[INFO] [stdout]     |
[INFO] [stdout] 485 |             return Ok(Context::singleton(free_var.clone(), expected_ty.clone()));
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.97s
[INFO] running `Command { std: "docker" "inspect" "aadaee5809b0b328b1aea5fd26d50e81c298049b0472fa6411704cb982fbbdc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aadaee5809b0b328b1aea5fd26d50e81c298049b0472fa6411704cb982fbbdc3", kill_on_drop: false }`
[INFO] [stdout] aadaee5809b0b328b1aea5fd26d50e81c298049b0472fa6411704cb982fbbdc3