[INFO] fetching crate readenv 0.3.0...
[INFO] building readenv-0.3.0 against try#d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6 for pr-146237-1
[INFO] extracting crate readenv 0.3.0 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate readenv 0.3.0
[INFO] finished tweaking crates.io crate readenv 0.3.0
[INFO] tweaked toml for crates.io crate readenv 0.3.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate readenv 0.3.0 on toolchain d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate readenv 0.3.0 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" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a43652bd2de6ad5dbf8ed4a1f2c6022ff3a7e7b2dc4a996fb46a8f1be770109d
[INFO] running `Command { std: "docker" "start" "-a" "a43652bd2de6ad5dbf8ed4a1f2c6022ff3a7e7b2dc4a996fb46a8f1be770109d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a43652bd2de6ad5dbf8ed4a1f2c6022ff3a7e7b2dc4a996fb46a8f1be770109d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a43652bd2de6ad5dbf8ed4a1f2c6022ff3a7e7b2dc4a996fb46a8f1be770109d", kill_on_drop: false }`
[INFO] [stdout] a43652bd2de6ad5dbf8ed4a1f2c6022ff3a7e7b2dc4a996fb46a8f1be770109d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6b419a86da67f5507a5a0fa771c4039dfc8dcbb0f861f05d2b14a7add1f2311
[INFO] running `Command { std: "docker" "start" "-a" "e6b419a86da67f5507a5a0fa771c4039dfc8dcbb0f861f05d2b14a7add1f2311", kill_on_drop: false }`
[INFO] [stderr]    Compiling errno v0.2.8
[INFO] [stderr]    Compiling dotenvy v0.15.6
[INFO] [stderr]    Compiling exec v0.3.1
[INFO] [stderr]    Compiling readenv v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `Command { std: "docker" "inspect" "e6b419a86da67f5507a5a0fa771c4039dfc8dcbb0f861f05d2b14a7add1f2311", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6b419a86da67f5507a5a0fa771c4039dfc8dcbb0f861f05d2b14a7add1f2311", kill_on_drop: false }`
[INFO] [stdout] e6b419a86da67f5507a5a0fa771c4039dfc8dcbb0f861f05d2b14a7add1f2311
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d79d87d4c0f7f0d0785ad6e493cf8cf718ed89a6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0732100aba629e25e978c7af997dc34abcd943667b16581bc04f74cb5e45a5d8
[INFO] running `Command { std: "docker" "start" "-a" "0732100aba629e25e978c7af997dc34abcd943667b16581bc04f74cb5e45a5d8", kill_on_drop: false }`
[INFO] [stderr]    Compiling readenv v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "0732100aba629e25e978c7af997dc34abcd943667b16581bc04f74cb5e45a5d8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0732100aba629e25e978c7af997dc34abcd943667b16581bc04f74cb5e45a5d8", kill_on_drop: false }`
[INFO] [stdout] 0732100aba629e25e978c7af997dc34abcd943667b16581bc04f74cb5e45a5d8