[INFO] fetching crate cvar 0.3.0...
[INFO] checking cvar-0.3.0 against try#3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f for pr-87248
[INFO] extracting crate cvar 0.3.0 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate cvar 0.3.0 on toolchain 3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cvar 0.3.0
[INFO] finished tweaking crates.io crate cvar 0.3.0
[INFO] tweaked toml for crates.io crate cvar 0.3.0 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate cvar 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b7f5426ca10e083df4a7e42b7eee75b12df7f1250f86be36203622e68b571b5c
[INFO] running `Command { std: "docker" "start" "-a" "b7f5426ca10e083df4a7e42b7eee75b12df7f1250f86be36203622e68b571b5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b7f5426ca10e083df4a7e42b7eee75b12df7f1250f86be36203622e68b571b5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b7f5426ca10e083df4a7e42b7eee75b12df7f1250f86be36203622e68b571b5c", kill_on_drop: false }`
[INFO] [stdout] b7f5426ca10e083df4a7e42b7eee75b12df7f1250f86be36203622e68b571b5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "+3e59a8c2f14152ccc92a6c079f592dc2dc6fa93f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef74c165a0c30ceb0b05aa01f3c2fb17fb35622bf161c46e7853d1fa1e79ffb0
[INFO] running `Command { std: "docker" "start" "-a" "ef74c165a0c30ceb0b05aa01f3c2fb17fb35622bf161c46e7853d1fa1e79ffb0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking cvar v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "ef74c165a0c30ceb0b05aa01f3c2fb17fb35622bf161c46e7853d1fa1e79ffb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef74c165a0c30ceb0b05aa01f3c2fb17fb35622bf161c46e7853d1fa1e79ffb0", kill_on_drop: false }`
[INFO] [stdout] ef74c165a0c30ceb0b05aa01f3c2fb17fb35622bf161c46e7853d1fa1e79ffb0