[INFO] cloning repository https://github.com/stuartnelson3/rust_learning
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stuartnelson3/rust_learning" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstuartnelson3%2Frust_learning", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstuartnelson3%2Frust_learning'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c2c8a75b515d9efd42da19b3d5a69954f41cf69c
[INFO] checking stuartnelson3/rust_learning against try#3d9fdbff4f377de96b3a51174e7a64086bee9a5c for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstuartnelson3%2Frust_learning" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stuartnelson3/rust_learning on toolchain 3d9fdbff4f377de96b3a51174e7a64086bee9a5c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/stuartnelson3/rust_learning
[INFO] finished tweaking git repo https://github.com/stuartnelson3/rust_learning
[INFO] tweaked toml for git repo https://github.com/stuartnelson3/rust_learning written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/stuartnelson3/rust_learning already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quick-error v0.2.2
[INFO] [stderr]   Downloaded prometheus v0.2.8
[INFO] [stderr]   Downloaded textwrap v0.8.0
[INFO] [stderr]   Downloaded protobuf v1.4.1
[INFO] [stderr]   Downloaded clap v2.26.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0fa77c853f42fef48fd57ddb9e37d58f81ca8feb8cde52a512444c1caa13ae8f
[INFO] running `Command { std: "docker" "start" "-a" "0fa77c853f42fef48fd57ddb9e37d58f81ca8feb8cde52a512444c1caa13ae8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0fa77c853f42fef48fd57ddb9e37d58f81ca8feb8cde52a512444c1caa13ae8f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fa77c853f42fef48fd57ddb9e37d58f81ca8feb8cde52a512444c1caa13ae8f", kill_on_drop: false }`
[INFO] [stdout] 0fa77c853f42fef48fd57ddb9e37d58f81ca8feb8cde52a512444c1caa13ae8f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 128939d5b4e54e207e941f47cf4cd2b7a0e3675720ae4c2955842e5b865dcd49
[INFO] running `Command { std: "docker" "start" "-a" "128939d5b4e54e207e941f47cf4cd2b7a0e3675720ae4c2955842e5b865dcd49", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.31
[INFO] [stderr]     Checking unicode-width v0.1.4
[INFO] [stderr]     Checking fnv v1.0.5
[INFO] [stderr]     Checking cfg-if v0.1.2
[INFO] [stderr]     Checking vec_map v0.8.0
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking protobuf v1.4.1
[INFO] [stderr]     Checking quick-error v0.2.2
[INFO] [stderr]     Checking lazy_static v0.2.8
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking term_size v0.3.0
[INFO] [stderr]     Checking atty v0.2.2
[INFO] [stderr]     Checking textwrap v0.8.0
[INFO] [stderr]     Checking clap v2.26.2
[INFO] [stderr]     Checking prometheus v0.2.8
[INFO] [stderr]     Checking rust_learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.19s
[INFO] running `Command { std: "docker" "inspect" "128939d5b4e54e207e941f47cf4cd2b7a0e3675720ae4c2955842e5b865dcd49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "128939d5b4e54e207e941f47cf4cd2b7a0e3675720ae4c2955842e5b865dcd49", kill_on_drop: false }`
[INFO] [stdout] 128939d5b4e54e207e941f47cf4cd2b7a0e3675720ae4c2955842e5b865dcd49