[INFO] cloning repository https://github.com/amsourav/learn-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/amsourav/learn-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famsourav%2Flearn-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famsourav%2Flearn-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bbc46c1a1e7fbfc39a7de4720cb7ac48c18d2c6c
[INFO] testing amsourav/learn-rust against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Famsourav%2Flearn-rust" "/workspace/builds/worker-83/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-83/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/amsourav/learn-rust on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/amsourav/learn-rust
[INFO] finished tweaking git repo https://github.com/amsourav/learn-rust
[INFO] tweaked toml for git repo https://github.com/amsourav/learn-rust written to /workspace/builds/worker-83/source/Cargo.toml
[INFO] crate git repo https://github.com/amsourav/learn-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e762b895d30b511f86ae020a8761ef3c66b4ee7593158655c9d130606a14c50b
[INFO] running `Command { std: "docker" "start" "-a" "e762b895d30b511f86ae020a8761ef3c66b4ee7593158655c9d130606a14c50b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e762b895d30b511f86ae020a8761ef3c66b4ee7593158655c9d130606a14c50b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e762b895d30b511f86ae020a8761ef3c66b4ee7593158655c9d130606a14c50b", kill_on_drop: false }`
[INFO] [stdout] e762b895d30b511f86ae020a8761ef3c66b4ee7593158655c9d130606a14c50b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76093f038251a9926951c7061cfccaec78c549a87d6c6a85994ad4f2841d4d53
[INFO] running `Command { std: "docker" "start" "-a" "76093f038251a9926951c7061cfccaec78c549a87d6c6a85994ad4f2841d4d53", kill_on_drop: false }`
[INFO] [stderr]    Compiling learn-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.62s
[INFO] running `Command { std: "docker" "inspect" "76093f038251a9926951c7061cfccaec78c549a87d6c6a85994ad4f2841d4d53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76093f038251a9926951c7061cfccaec78c549a87d6c6a85994ad4f2841d4d53", kill_on_drop: false }`
[INFO] [stdout] 76093f038251a9926951c7061cfccaec78c549a87d6c6a85994ad4f2841d4d53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e532daa28da09e886cb34068ab892be1e638c48465af36c13749a9fe997c5fbc
[INFO] running `Command { std: "docker" "start" "-a" "e532daa28da09e886cb34068ab892be1e638c48465af36c13749a9fe997c5fbc", kill_on_drop: false }`
[INFO] [stderr]    Compiling learn-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.42s
[INFO] running `Command { std: "docker" "inspect" "e532daa28da09e886cb34068ab892be1e638c48465af36c13749a9fe997c5fbc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e532daa28da09e886cb34068ab892be1e638c48465af36c13749a9fe997c5fbc", kill_on_drop: false }`
[INFO] [stdout] e532daa28da09e886cb34068ab892be1e638c48465af36c13749a9fe997c5fbc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-83/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b5a8f49748f3e9d9fc3eb28f8a3cef19e47483ae1d4c28480bbff54ce4e210ae
[INFO] running `Command { std: "docker" "start" "-a" "b5a8f49748f3e9d9fc3eb28f8a3cef19e47483ae1d4c28480bbff54ce4e210ae", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/learn_rust-9523b7a48c5c310e)
[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" "b5a8f49748f3e9d9fc3eb28f8a3cef19e47483ae1d4c28480bbff54ce4e210ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5a8f49748f3e9d9fc3eb28f8a3cef19e47483ae1d4c28480bbff54ce4e210ae", kill_on_drop: false }`
[INFO] [stdout] b5a8f49748f3e9d9fc3eb28f8a3cef19e47483ae1d4c28480bbff54ce4e210ae