[INFO] cloning repository https://github.com/vbfox/stidgen.rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/vbfox/stidgen.rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvbfox%2Fstidgen.rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvbfox%2Fstidgen.rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9a57be625541c031ceb9971775d66458aefe3db4
[INFO] checking vbfox/stidgen.rs against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvbfox%2Fstidgen.rs" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/vbfox/stidgen.rs on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/vbfox/stidgen.rs
[INFO] finished tweaking git repo https://github.com/vbfox/stidgen.rs
[INFO] tweaked toml for git repo https://github.com/vbfox/stidgen.rs written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/vbfox/stidgen.rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8ab2bf4ed424139bbbc693786aff286cd46779fe20d93e7ce1d746c6020775e9
[INFO] running `Command { std: "docker" "start" "-a" "8ab2bf4ed424139bbbc693786aff286cd46779fe20d93e7ce1d746c6020775e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8ab2bf4ed424139bbbc693786aff286cd46779fe20d93e7ce1d746c6020775e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8ab2bf4ed424139bbbc693786aff286cd46779fe20d93e7ce1d746c6020775e9", kill_on_drop: false }`
[INFO] [stdout] 8ab2bf4ed424139bbbc693786aff286cd46779fe20d93e7ce1d746c6020775e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 043f5ce7d6d09712b9d91191597a2a3af2af94fac287d66033344a1487b94b55
[INFO] running `Command { std: "docker" "start" "-a" "043f5ce7d6d09712b9d91191597a2a3af2af94fac287d66033344a1487b94b55", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking unicode-xid v0.2.1
[INFO] [stderr]    Compiling once_cell v1.5.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]     Checking quote v1.0.7
[INFO] [stderr]     Checking stidgen v0.1.0 (/opt/rustwide/workdir/stidgen)
[INFO] [stdout] warning: field is never read: `known_type`
[INFO] [stdout]   --> stidgen/src/known_types.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub known_type: KnownTypes,
[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] [stdout] warning: field is never read: `known_type`
[INFO] [stdout]   --> stidgen/src/known_types.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub known_type: KnownTypes,
[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] [stdout] warning: field is never read: `known_type`
[INFO] [stdout]   --> stidgen/src/known_types.rs:96:5
[INFO] [stdout]    |
[INFO] [stdout] 96 |     pub known_type: KnownTypes,
[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 playground v0.1.0 (/opt/rustwide/workdir/playground)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.10s
[INFO] running `Command { std: "docker" "inspect" "043f5ce7d6d09712b9d91191597a2a3af2af94fac287d66033344a1487b94b55", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "043f5ce7d6d09712b9d91191597a2a3af2af94fac287d66033344a1487b94b55", kill_on_drop: false }`
[INFO] [stdout] 043f5ce7d6d09712b9d91191597a2a3af2af94fac287d66033344a1487b94b55