[INFO] fetching crate either_field 1.2.0...
[INFO] checking either_field-1.2.0 against master#8c32e313cccf7df531e2d49ffb8227bb92304aee for pr-145608-1
[INFO] extracting crate either_field 1.2.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate either_field 1.2.0
[INFO] finished tweaking crates.io crate either_field 1.2.0
[INFO] tweaked toml for crates.io crate either_field 1.2.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate either_field 1.2.0 on toolchain 8c32e313cccf7df531e2d49ffb8227bb92304aee
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate either_field 1.2.0 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" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d2435cc27f21eb7d94d8259ac6f3ff7094dffbe8d02cb2612f8c8d37fa0914f9
[INFO] running `Command { std: "docker" "start" "-a" "d2435cc27f21eb7d94d8259ac6f3ff7094dffbe8d02cb2612f8c8d37fa0914f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2435cc27f21eb7d94d8259ac6f3ff7094dffbe8d02cb2612f8c8d37fa0914f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2435cc27f21eb7d94d8259ac6f3ff7094dffbe8d02cb2612f8c8d37fa0914f9", kill_on_drop: false }`
[INFO] [stdout] d2435cc27f21eb7d94d8259ac6f3ff7094dffbe8d02cb2612f8c8d37fa0914f9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+8c32e313cccf7df531e2d49ffb8227bb92304aee" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 62910fba56887e62391eeb91149876c1aa6d622bf09e585bbb706570d54c6aa3
[INFO] running `Command { std: "docker" "start" "-a" "62910fba56887e62391eeb91149876c1aa6d622bf09e585bbb706570d54c6aa3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.94
[INFO] [stderr]     Checking unicode-ident v1.0.18
[INFO] [stderr]     Checking quote v1.0.40
[INFO] [stderr]     Checking syn v2.0.100
[INFO] [stderr]     Checking either_field v1.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function `push_if_empty_tuple` is never used
[INFO] [stdout]   --> src/helper.rs:48:15
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub(crate) fn push_if_empty_tuple(x: &Type, delete: bool, vec: &mut Vec<bool>) {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `push_if_empty_tuple` is never used
[INFO] [stdout]   --> src/helper.rs:48:15
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub(crate) fn push_if_empty_tuple(x: &Type, delete: bool, vec: &mut Vec<bool>) {
[INFO] [stdout]    |               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.53s
[INFO] running `Command { std: "docker" "inspect" "62910fba56887e62391eeb91149876c1aa6d622bf09e585bbb706570d54c6aa3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62910fba56887e62391eeb91149876c1aa6d622bf09e585bbb706570d54c6aa3", kill_on_drop: false }`
[INFO] [stdout] 62910fba56887e62391eeb91149876c1aa6d622bf09e585bbb706570d54c6aa3