[INFO] fetching crate sumtype 0.2.6...
[INFO] checking sumtype-0.2.6 against try#0611f7de057c584b8771102fde7aed6c70c71d3b for pr-146440
[INFO] extracting crate sumtype 0.2.6 into /workspace/builds/worker-7-tc2/source
[INFO] started tweaking crates.io crate sumtype 0.2.6
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate sumtype 0.2.6
[INFO] tweaked toml for crates.io crate sumtype 0.2.6 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate sumtype 0.2.6 on toolchain 0611f7de057c584b8771102fde7aed6c70c71d3b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate sumtype 0.2.6 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" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 01fcb96b7078d5d7d3ebc6e482ab645c4a0cd1e1ae4a4642bac0236bad70d164
[INFO] running `Command { std: "docker" "start" "-a" "01fcb96b7078d5d7d3ebc6e482ab645c4a0cd1e1ae4a4642bac0236bad70d164", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "01fcb96b7078d5d7d3ebc6e482ab645c4a0cd1e1ae4a4642bac0236bad70d164", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "01fcb96b7078d5d7d3ebc6e482ab645c4a0cd1e1ae4a4642bac0236bad70d164", kill_on_drop: false }`
[INFO] [stdout] 01fcb96b7078d5d7d3ebc6e482ab645c4a0cd1e1ae4a4642bac0236bad70d164
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0611f7de057c584b8771102fde7aed6c70c71d3b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ead858f24287aa334976f20c5231ed07b25315c0e2733be2747a145fed5dd83
[INFO] running `Command { std: "docker" "start" "-a" "0ead858f24287aa334976f20c5231ed07b25315c0e2733be2747a145fed5dd83", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.103
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking winnow v0.7.13
[INFO] [stderr]    Compiling gotgraph v0.2.0
[INFO] [stderr]    Compiling target-triple v1.0.0
[INFO] [stderr]    Compiling serde v1.0.228
[INFO] [stderr]     Checking toml_writer v1.0.4
[INFO] [stderr]     Checking memchr v2.7.6
[INFO] [stderr]     Checking toml_datetime v0.7.3
[INFO] [stderr]     Checking serde_spanned v1.0.3
[INFO] [stderr]     Checking serde_json v1.0.145
[INFO] [stderr]    Compiling quote v1.0.42
[INFO] [stderr]    Compiling syn v2.0.110
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling include_dir_macros v0.7.4
[INFO] [stderr]    Compiling proc-macro-error-attr2 v2.0.0
[INFO] [stderr]    Compiling include_dir v0.7.4
[INFO] [stderr]    Compiling proc-macro-error2 v2.0.1
[INFO] [stderr]     Checking toml_parser v1.0.4
[INFO] [stderr]     Checking toml v0.9.8
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling template-quote-impl v0.4.2
[INFO] [stderr]    Compiling derive-syn-parse v0.1.5
[INFO] [stderr]    Compiling template-quote v0.4.2
[INFO] [stderr]    Compiling darling_core v0.20.11
[INFO] [stderr]    Compiling aquamarine v0.6.0
[INFO] [stderr]    Compiling syn_derive v0.1.8
[INFO] [stderr]    Compiling serde_derive v1.0.228
[INFO] [stderr]    Compiling type-leak v0.3.0
[INFO] [stderr]    Compiling darling_macro v0.20.11
[INFO] [stderr]    Compiling darling v0.20.11
[INFO] [stderr]    Compiling sumtype-macro v0.2.6
[INFO] [stderr]     Checking trybuild v1.0.114
[INFO] [stderr]     Checking sumtype v0.2.6 (/opt/rustwide/workdir)
[INFO] [stdout] error: struct `Marker` is never constructed
[INFO] [stdout]    --> lib.rs:102:24
[INFO] [stdout]     |
[INFO] [stdout] 102 |             pub struct Marker(::core::convert::Infallible);
[INFO] [stdout]     |                        ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 194 |     emit_traits!();
[INFO] [stdout]     |     -------------- in this macro invocation
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `pub` struct has private fields, no public constructor, and is not otherwise reachable through the external API, so consider providing a public constructor or removing it
[INFO] [stdout]     = note: `#[deny(unused_unconstructable_pub_struct)]` (part of `#[deny(unused)]`) on by default
[INFO] [stdout]     = note: this error originates in the macro `emit_traits` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sumtype` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "0ead858f24287aa334976f20c5231ed07b25315c0e2733be2747a145fed5dd83", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ead858f24287aa334976f20c5231ed07b25315c0e2733be2747a145fed5dd83", kill_on_drop: false }`
[INFO] [stdout] 0ead858f24287aa334976f20c5231ed07b25315c0e2733be2747a145fed5dd83
