[INFO] fetching crate tref 0.1.1...
[INFO] checking tref-0.1.1 against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] extracting crate tref 0.1.1 into /workspace/builds/worker-22/source
[INFO] validating manifest of crates.io crate tref 0.1.1 on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tref 0.1.1
[INFO] finished tweaking crates.io crate tref 0.1.1
[INFO] tweaked toml for crates.io crate tref 0.1.1 written to /workspace/builds/worker-22/source/Cargo.toml
[INFO] crate crates.io crate tref 0.1.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2eacf1055b0d89661cc2bc0b49821e7043a8cf8f2c0ce1f285de62576d41fb2e
[INFO] running `Command { std: "docker" "start" "-a" "2eacf1055b0d89661cc2bc0b49821e7043a8cf8f2c0ce1f285de62576d41fb2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2eacf1055b0d89661cc2bc0b49821e7043a8cf8f2c0ce1f285de62576d41fb2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2eacf1055b0d89661cc2bc0b49821e7043a8cf8f2c0ce1f285de62576d41fb2e", kill_on_drop: false }`
[INFO] [stdout] 2eacf1055b0d89661cc2bc0b49821e7043a8cf8f2c0ce1f285de62576d41fb2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-22/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 419a6d52407d723aa2b7c079d936075367be55b15a110c7d5764e319fe4b204a
[INFO] running `Command { std: "docker" "start" "-a" "419a6d52407d723aa2b7c079d936075367be55b15a110c7d5764e319fe4b204a", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-syntax v0.6.23
[INFO] [stderr]     Checking regex v1.4.6
[INFO] [stderr]     Checking tref v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.82s
[INFO] running `Command { std: "docker" "inspect" "419a6d52407d723aa2b7c079d936075367be55b15a110c7d5764e319fe4b204a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "419a6d52407d723aa2b7c079d936075367be55b15a110c7d5764e319fe4b204a", kill_on_drop: false }`
[INFO] [stdout] 419a6d52407d723aa2b7c079d936075367be55b15a110c7d5764e319fe4b204a