[INFO] cloning repository https://github.com/haishenming/learn_rust_the_hard_way
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/haishenming/learn_rust_the_hard_way" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhaishenming%2Flearn_rust_the_hard_way", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhaishenming%2Flearn_rust_the_hard_way'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 50d153259cd5c3aa51b519cfd9d2b6775448ece3
[INFO] testing haishenming/learn_rust_the_hard_way against 1.60.0 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fhaishenming%2Flearn_rust_the_hard_way" "/workspace/builds/worker-19/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-19/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/haishenming/learn_rust_the_hard_way on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/haishenming/learn_rust_the_hard_way
[INFO] finished tweaking git repo https://github.com/haishenming/learn_rust_the_hard_way
[INFO] tweaked toml for git repo https://github.com/haishenming/learn_rust_the_hard_way written to /workspace/builds/worker-19/source/Cargo.toml
[INFO] crate git repo https://github.com/haishenming/learn_rust_the_hard_way already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e861b0064e37c30b3c2a5f898907ddbdf53cd843a2ec72f4cd3ea4b5d4835f36
[INFO] running `Command { std: "docker" "start" "-a" "e861b0064e37c30b3c2a5f898907ddbdf53cd843a2ec72f4cd3ea4b5d4835f36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e861b0064e37c30b3c2a5f898907ddbdf53cd843a2ec72f4cd3ea4b5d4835f36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e861b0064e37c30b3c2a5f898907ddbdf53cd843a2ec72f4cd3ea4b5d4835f36", kill_on_drop: false }`
[INFO] [stdout] e861b0064e37c30b3c2a5f898907ddbdf53cd843a2ec72f4cd3ea4b5d4835f36
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68cc4de8df8dff3e0dfb988c8de0c997a98ba3177bec17d4d0c06a0058ee088a
[INFO] running `Command { std: "docker" "start" "-a" "68cc4de8df8dff3e0dfb988c8de0c997a98ba3177bec17d4d0c06a0058ee088a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling learn_rust_the_hard_way v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "68cc4de8df8dff3e0dfb988c8de0c997a98ba3177bec17d4d0c06a0058ee088a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68cc4de8df8dff3e0dfb988c8de0c997a98ba3177bec17d4d0c06a0058ee088a", kill_on_drop: false }`
[INFO] [stdout] 68cc4de8df8dff3e0dfb988c8de0c997a98ba3177bec17d4d0c06a0058ee088a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d6f45e251ebd3a01f03dc0a9d07535e1abf1e14fd748e820a65e2917bb3c2ed3
[INFO] running `Command { std: "docker" "start" "-a" "d6f45e251ebd3a01f03dc0a9d07535e1abf1e14fd748e820a65e2917bb3c2ed3", kill_on_drop: false }`
[INFO] [stderr]    Compiling learn_rust_the_hard_way v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.28s
[INFO] running `Command { std: "docker" "inspect" "d6f45e251ebd3a01f03dc0a9d07535e1abf1e14fd748e820a65e2917bb3c2ed3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6f45e251ebd3a01f03dc0a9d07535e1abf1e14fd748e820a65e2917bb3c2ed3", kill_on_drop: false }`
[INFO] [stdout] d6f45e251ebd3a01f03dc0a9d07535e1abf1e14fd748e820a65e2917bb3c2ed3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-19/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ebf93edc1d1e4166d54c1edaa80997d9ff79348e5f92453655cc45128f4f663a
[INFO] running `Command { std: "docker" "start" "-a" "ebf93edc1d1e4166d54c1edaa80997d9ff79348e5f92453655cc45128f4f663a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.00s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/learn_rust_the_hard_way-a2dd47baa8161a45)
[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" "ebf93edc1d1e4166d54c1edaa80997d9ff79348e5f92453655cc45128f4f663a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebf93edc1d1e4166d54c1edaa80997d9ff79348e5f92453655cc45128f4f663a", kill_on_drop: false }`
[INFO] [stdout] ebf93edc1d1e4166d54c1edaa80997d9ff79348e5f92453655cc45128f4f663a