[INFO] cloning repository https://github.com/EdwardsKM/substruct
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/EdwardsKM/substruct" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEdwardsKM%2Fsubstruct", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEdwardsKM%2Fsubstruct'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 890838a53d20afd2bfef4ccad9476e4a5b58d4e1
[INFO] testing EdwardsKM/substruct against master#1ef7943ee607160a564655b6596f83670ef95df5 for pr-146098-6
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEdwardsKM%2Fsubstruct" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/EdwardsKM/substruct
[INFO] finished tweaking git repo https://github.com/EdwardsKM/substruct
[INFO] tweaked toml for git repo https://github.com/EdwardsKM/substruct written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/EdwardsKM/substruct on toolchain 1ef7943ee607160a564655b6596f83670ef95df5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/EdwardsKM/substruct 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" "+1ef7943ee607160a564655b6596f83670ef95df5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded trybuild v1.0.96
[INFO] [stderr]   Downloaded toml v0.8.13
[INFO] [stderr]   Downloaded toml_edit v0.22.13
[INFO] [stderr]   Downloaded winnow v0.6.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e2ac13bfb54b48ea38055d9061709d609115b2f6a15b1e79e80171b9cfa08970
[INFO] running `Command { std: "docker" "start" "-a" "e2ac13bfb54b48ea38055d9061709d609115b2f6a15b1e79e80171b9cfa08970", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e2ac13bfb54b48ea38055d9061709d609115b2f6a15b1e79e80171b9cfa08970", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2ac13bfb54b48ea38055d9061709d609115b2f6a15b1e79e80171b9cfa08970", kill_on_drop: false }`
[INFO] [stdout] e2ac13bfb54b48ea38055d9061709d609115b2f6a15b1e79e80171b9cfa08970
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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=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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1ef7943ee607160a564655b6596f83670ef95df5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bb8187fd6763ef5e643dd511914a048a73c9c6beba2049508f60662abb34fcfd
[INFO] running `Command { std: "docker" "start" "-a" "bb8187fd6763ef5e643dd511914a048a73c9c6beba2049508f60662abb34fcfd", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.203
[INFO] [stderr]    Compiling hashbrown v0.14.5
[INFO] [stderr]    Compiling serde_json v1.0.117
[INFO] [stderr]    Compiling winnow v0.6.9
[INFO] [stderr]    Compiling itoa v1.0.11
[INFO] [stderr]    Compiling trybuild v1.0.96
[INFO] [stderr]    Compiling ryu v1.0.18
[INFO] [stderr]    Compiling syn v2.0.66
[INFO] [stderr]    Compiling indexmap v2.2.6
[INFO] [stderr]    Compiling serde_derive v1.0.203
[INFO] [stderr]    Compiling toml_datetime v0.6.6
[INFO] [stderr]    Compiling serde_spanned v0.6.6
[INFO] [stderr]    Compiling toml_edit v0.22.13
[INFO] [stderr]    Compiling toml v0.8.13
[INFO] [stderr]    Compiling substruct v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: could not compile `substruct` (lib) due to 2 previous errors
[INFO] [stdout] error[E0609]: no field `elems` on type `&ExprArray`
[INFO] [stdout]    --> src/lib.rs:198:32
[INFO] [stdout]     |
[INFO] [stdout] 198 |                     for e in v.elems.iter() {
[INFO] [stdout]     |                                ^^^^^ unknown field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0609]: no field `elems` on type `&ExprArray`
[INFO] [stdout]    --> src/lib.rs:226:32
[INFO] [stdout]     |
[INFO] [stdout] 226 |                     for e in v.elems.iter() {
[INFO] [stdout]     |                                ^^^^^ unknown field
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0609`.
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bb8187fd6763ef5e643dd511914a048a73c9c6beba2049508f60662abb34fcfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb8187fd6763ef5e643dd511914a048a73c9c6beba2049508f60662abb34fcfd", kill_on_drop: false }`
[INFO] [stdout] bb8187fd6763ef5e643dd511914a048a73c9c6beba2049508f60662abb34fcfd
