[INFO] cloning repository https://github.com/discipleian/rustlrn
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/discipleian/rustlrn" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiscipleian%2Frustlrn", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiscipleian%2Frustlrn'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2ce9c0959426641b3e75c4c5af10938518002700
[INFO] testing discipleian/rustlrn against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdiscipleian%2Frustlrn" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/discipleian/rustlrn on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/discipleian/rustlrn
[INFO] finished tweaking git repo https://github.com/discipleian/rustlrn
[INFO] tweaked toml for git repo https://github.com/discipleian/rustlrn written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/discipleian/rustlrn already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d691d48a8b6bda948b958abb2ecb9d0ada002f4770b052aac2269a3643080328
[INFO] running `Command { std: "docker" "start" "-a" "d691d48a8b6bda948b958abb2ecb9d0ada002f4770b052aac2269a3643080328", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d691d48a8b6bda948b958abb2ecb9d0ada002f4770b052aac2269a3643080328", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d691d48a8b6bda948b958abb2ecb9d0ada002f4770b052aac2269a3643080328", kill_on_drop: false }`
[INFO] [stdout] d691d48a8b6bda948b958abb2ecb9d0ada002f4770b052aac2269a3643080328
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9eb550d41034d0bd739b61a321da4ef722307560571c6c0d3b2babfd3ea98c9c
[INFO] running `Command { std: "docker" "start" "-a" "9eb550d41034d0bd739b61a321da4ef722307560571c6c0d3b2babfd3ea98c9c", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling echosrv v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "9eb550d41034d0bd739b61a321da4ef722307560571c6c0d3b2babfd3ea98c9c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9eb550d41034d0bd739b61a321da4ef722307560571c6c0d3b2babfd3ea98c9c", kill_on_drop: false }`
[INFO] [stdout] 9eb550d41034d0bd739b61a321da4ef722307560571c6c0d3b2babfd3ea98c9c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 770cf595ae0343a526aedcdc457aa900bb1b9bc462380b8c12402b3f741b720a
[INFO] running `Command { std: "docker" "start" "-a" "770cf595ae0343a526aedcdc457aa900bb1b9bc462380b8c12402b3f741b720a", kill_on_drop: false }`
[INFO] [stderr]    Compiling echosrv v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "770cf595ae0343a526aedcdc457aa900bb1b9bc462380b8c12402b3f741b720a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "770cf595ae0343a526aedcdc457aa900bb1b9bc462380b8c12402b3f741b720a", kill_on_drop: false }`
[INFO] [stdout] 770cf595ae0343a526aedcdc457aa900bb1b9bc462380b8c12402b3f741b720a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9c0e0205b5744917e50ff69aee61d55354b520258ea72bb048a8ece89a33518d
[INFO] running `Command { std: "docker" "start" "-a" "9c0e0205b5744917e50ff69aee61d55354b520258ea72bb048a8ece89a33518d", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/echosrv-d5e5a8a8d71ffe40)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9c0e0205b5744917e50ff69aee61d55354b520258ea72bb048a8ece89a33518d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c0e0205b5744917e50ff69aee61d55354b520258ea72bb048a8ece89a33518d", kill_on_drop: false }`
[INFO] [stdout] 9c0e0205b5744917e50ff69aee61d55354b520258ea72bb048a8ece89a33518d