[INFO] cloning repository https://github.com/Confirm4Crit/RustBookWalkthrough
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Confirm4Crit/RustBookWalkthrough" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FConfirm4Crit%2FRustBookWalkthrough", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FConfirm4Crit%2FRustBookWalkthrough'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 524f97b840d0f9d9406848984210bd0d9c458f56
[INFO] testing Confirm4Crit/RustBookWalkthrough against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FConfirm4Crit%2FRustBookWalkthrough" "/workspace/builds/worker-64/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-64/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Confirm4Crit/RustBookWalkthrough 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/Confirm4Crit/RustBookWalkthrough
[INFO] finished tweaking git repo https://github.com/Confirm4Crit/RustBookWalkthrough
[INFO] tweaked toml for git repo https://github.com/Confirm4Crit/RustBookWalkthrough written to /workspace/builds/worker-64/source/Cargo.toml
[INFO] crate git repo https://github.com/Confirm4Crit/RustBookWalkthrough 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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] 2423da650dd6fd075023a707577a24ffb7d9bd469c53739f036927d11f195a9a
[INFO] running `Command { std: "docker" "start" "-a" "2423da650dd6fd075023a707577a24ffb7d9bd469c53739f036927d11f195a9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2423da650dd6fd075023a707577a24ffb7d9bd469c53739f036927d11f195a9a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2423da650dd6fd075023a707577a24ffb7d9bd469c53739f036927d11f195a9a", kill_on_drop: false }`
[INFO] [stdout] 2423da650dd6fd075023a707577a24ffb7d9bd469c53739f036927d11f195a9a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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] 48c9d3335c18dd6f0d1c3f910dd66249e03cc5307faa8c7e4e778f5265d9e41a
[INFO] running `Command { std: "docker" "start" "-a" "48c9d3335c18dd6f0d1c3f910dd66249e03cc5307faa8c7e4e778f5265d9e41a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling RustBookWalkthrough v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `RustBookWalkthrough` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `rust_book_walkthrough`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.60s
[INFO] running `Command { std: "docker" "inspect" "48c9d3335c18dd6f0d1c3f910dd66249e03cc5307faa8c7e4e778f5265d9e41a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48c9d3335c18dd6f0d1c3f910dd66249e03cc5307faa8c7e4e778f5265d9e41a", kill_on_drop: false }`
[INFO] [stdout] 48c9d3335c18dd6f0d1c3f910dd66249e03cc5307faa8c7e4e778f5265d9e41a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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] 62a692afbec29655129da5cd781d202cc2ea6875a6f662a2aebfd106b7fc910f
[INFO] running `Command { std: "docker" "start" "-a" "62a692afbec29655129da5cd781d202cc2ea6875a6f662a2aebfd106b7fc910f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling RustBookWalkthrough v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: crate `RustBookWalkthrough` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `rust_book_walkthrough`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "62a692afbec29655129da5cd781d202cc2ea6875a6f662a2aebfd106b7fc910f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62a692afbec29655129da5cd781d202cc2ea6875a6f662a2aebfd106b7fc910f", kill_on_drop: false }`
[INFO] [stdout] 62a692afbec29655129da5cd781d202cc2ea6875a6f662a2aebfd106b7fc910f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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] 58a4ac7cba61e6c86ae87c6392297dcaf8f7b67dfd4155fb2e68b3a6f465e098
[INFO] running `Command { std: "docker" "start" "-a" "58a4ac7cba61e6c86ae87c6392297dcaf8f7b67dfd4155fb2e68b3a6f465e098", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: crate `RustBookWalkthrough` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `rust_book_walkthrough`
[INFO] [stderr] 
[INFO] [stderr] warning: `RustBookWalkthrough` (bin "RustBookWalkthrough" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1m 08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/RustBookWalkthrough-f2920ddcb378a0e7)
[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" "58a4ac7cba61e6c86ae87c6392297dcaf8f7b67dfd4155fb2e68b3a6f465e098", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "58a4ac7cba61e6c86ae87c6392297dcaf8f7b67dfd4155fb2e68b3a6f465e098", kill_on_drop: false }`
[INFO] [stdout] 58a4ac7cba61e6c86ae87c6392297dcaf8f7b67dfd4155fb2e68b3a6f465e098