[INFO] fetching crate cc 1.0.83...
[INFO] checking cc-1.0.83 against master#020bbe46bdf613c0b8211984eaa8e5fe97d6c92d for pr-122960
[INFO] extracting crate cc 1.0.83 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate cc 1.0.83 on toolchain 020bbe46bdf613c0b8211984eaa8e5fe97d6c92d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cc 1.0.83
[INFO] finished tweaking crates.io crate cc 1.0.83
[INFO] tweaked toml for crates.io crate cc 1.0.83 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate cc 1.0.83 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" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d56d2bedfac6973ecee54f7f1587c6b949840b4f19219a5defb7f6c1ff773935
[INFO] running `Command { std: "docker" "start" "-a" "d56d2bedfac6973ecee54f7f1587c6b949840b4f19219a5defb7f6c1ff773935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d56d2bedfac6973ecee54f7f1587c6b949840b4f19219a5defb7f6c1ff773935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d56d2bedfac6973ecee54f7f1587c6b949840b4f19219a5defb7f6c1ff773935", kill_on_drop: false }`
[INFO] [stdout] d56d2bedfac6973ecee54f7f1587c6b949840b4f19219a5defb7f6c1ff773935
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+020bbe46bdf613c0b8211984eaa8e5fe97d6c92d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 552e6563a82a742dd4cea128d72e6fdd916cddda8957475825383631e684423b
[INFO] running `Command { std: "docker" "start" "-a" "552e6563a82a742dd4cea128d72e6fdd916cddda8957475825383631e684423b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking fastrand v1.8.0
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking tempfile v3.3.0
[INFO] [stderr]     Checking cc v1.0.83 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]     --> src/lib.rs:2366:22
[INFO] [stdout]      |
[INFO] [stdout] 2366 |             Catalyst(&'static str),
[INFO] [stdout]      |             -------- ^^^^^^^^^^^^
[INFO] [stdout]      |             |
[INFO] [stdout]      |             field in this variant
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]      |
[INFO] [stdout] 2366 |             Catalyst(()),
[INFO] [stdout]      |                      ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `cc` is imported redundantly
[INFO] [stdout]   --> tests/support/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use cc;
[INFO] [stdout]    |     ^^ the item `cc` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `cc` is imported redundantly
[INFO] [stdout]   --> tests/support/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use cc;
[INFO] [stdout]    |     ^^ the item `cc` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `cc` is imported redundantly
[INFO] [stdout]   --> tests/support/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use cc;
[INFO] [stdout]    |     ^^ the item `cc` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `cc` is imported redundantly
[INFO] [stdout]   --> tests/support/mod.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use cc;
[INFO] [stdout]    |     ^^ the item `cc` is already defined by prelude
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: field `0` is never read
[INFO] [stdout]     --> src/lib.rs:2366:22
[INFO] [stdout]      |
[INFO] [stdout] 2366 |             Catalyst(&'static str),
[INFO] [stdout]      |             -------- ^^^^^^^^^^^^
[INFO] [stdout]      |             |
[INFO] [stdout]      |             field in this variant
[INFO] [stdout]      |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]     --> src/lib.rs:52:24
[INFO] [stdout]      |
[INFO] [stdout] 52   | #![cfg_attr(test, deny(warnings))]
[INFO] [stdout]      |                        ^^^^^^^^
[INFO] [stdout]      = note: `#[deny(dead_code)]` implied by `#[deny(warnings)]`
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]      |
[INFO] [stdout] 2366 |             Catalyst(()),
[INFO] [stdout]      |                      ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `cc` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "552e6563a82a742dd4cea128d72e6fdd916cddda8957475825383631e684423b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "552e6563a82a742dd4cea128d72e6fdd916cddda8957475825383631e684423b", kill_on_drop: false }`
[INFO] [stdout] 552e6563a82a742dd4cea128d72e6fdd916cddda8957475825383631e684423b