[INFO] fetching crate rng_trait 0.1.1...
[INFO] checking rng_trait-0.1.1 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate rng_trait 0.1.1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate rng_trait 0.1.1 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rng_trait 0.1.1
[INFO] finished tweaking crates.io crate rng_trait 0.1.1
[INFO] tweaked toml for crates.io crate rng_trait 0.1.1 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f532e8e78d9ac3632fff3043e4ccd52884751cb307747c570d7e77f71a253390
[INFO] running `Command { std: "docker" "start" "-a" "f532e8e78d9ac3632fff3043e4ccd52884751cb307747c570d7e77f71a253390", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f532e8e78d9ac3632fff3043e4ccd52884751cb307747c570d7e77f71a253390", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f532e8e78d9ac3632fff3043e4ccd52884751cb307747c570d7e77f71a253390", kill_on_drop: false }`
[INFO] [stdout] f532e8e78d9ac3632fff3043e4ccd52884751cb307747c570d7e77f71a253390
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e373056006792cba35ba1f8c39a697bea141eb849c0a723dfe45ea409ca80bc1
[INFO] running `Command { std: "docker" "start" "-a" "e373056006792cba35ba1f8c39a697bea141eb849c0a723dfe45ea409ca80bc1", kill_on_drop: false }`
[INFO] [stderr]     Checking rng_trait v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "e373056006792cba35ba1f8c39a697bea141eb849c0a723dfe45ea409ca80bc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e373056006792cba35ba1f8c39a697bea141eb849c0a723dfe45ea409ca80bc1", kill_on_drop: false }`
[INFO] [stdout] e373056006792cba35ba1f8c39a697bea141eb849c0a723dfe45ea409ca80bc1