[INFO] fetching crate gluon_check 0.17.2...
[INFO] checking gluon_check-0.17.2 against master#36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923 for pr-81863
[INFO] extracting crate gluon_check 0.17.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate gluon_check 0.17.2 on toolchain 36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate gluon_check 0.17.2
[INFO] finished tweaking crates.io crate gluon_check 0.17.2
[INFO] tweaked toml for crates.io crate gluon_check 0.17.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 836cd5541e43c9e5fe59f101247aba42636adce6aedf209659cb54d740af5179
[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" "836cd5541e43c9e5fe59f101247aba42636adce6aedf209659cb54d740af5179", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "836cd5541e43c9e5fe59f101247aba42636adce6aedf209659cb54d740af5179", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "836cd5541e43c9e5fe59f101247aba42636adce6aedf209659cb54d740af5179", kill_on_drop: false }`
[INFO] [stdout] 836cd5541e43c9e5fe59f101247aba42636adce6aedf209659cb54d740af5179
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+36ecbc94eb6be90bc38b2d0fdd4bfac3f34d9923" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 38b318649178d53f7ca9dd3644ba8bf3fa53c5a4e28fcc6e35bda88f2b8adc86
[INFO] running `Command { std: "docker" "start" "-a" "38b318649178d53f7ca9dd3644ba8bf3fa53c5a4e28fcc6e35bda88f2b8adc86", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]     Checking terminal_size v0.1.16
[INFO] [stderr]     Checking termios v0.3.3
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]     Checking console v0.11.3
[INFO] [stderr]    Compiling lalrpop v0.19.4
[INFO] [stderr]    Compiling gluon_codegen v0.17.2
[INFO] [stderr]     Checking gluon_base v0.17.2
[INFO] [stderr]     Checking gluon_format v0.17.2
[INFO] [stderr]     Checking gluon_check v0.17.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking serde v1.0.123
[INFO] [stdout] warning: field is never read: `span`
[INFO] [stdout]   --> src/typecheck/generalize.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     span: Span<BytePos>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking serde_yaml v0.8.16
[INFO] [stderr]     Checking serde_json v1.0.62
[INFO] [stderr]    Compiling gluon_parser v0.17.2
[INFO] [stderr]     Checking insta v0.16.1
[INFO] [stdout] warning: field is never read: `span`
[INFO] [stdout]   --> src/typecheck/generalize.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 20 |     span: Span<BytePos>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 59s
[INFO] running `Command { std: "docker" "inspect" "38b318649178d53f7ca9dd3644ba8bf3fa53c5a4e28fcc6e35bda88f2b8adc86", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "38b318649178d53f7ca9dd3644ba8bf3fa53c5a4e28fcc6e35bda88f2b8adc86", kill_on_drop: false }`
[INFO] [stdout] 38b318649178d53f7ca9dd3644ba8bf3fa53c5a4e28fcc6e35bda88f2b8adc86