[INFO] cloning repository https://github.com/XcaliberRage/rust_by_example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/XcaliberRage/rust_by_example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXcaliberRage%2Frust_by_example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXcaliberRage%2Frust_by_example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d4238d657baf5fe923495f692e42652e141e95c
[INFO] checking XcaliberRage/rust_by_example against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXcaliberRage%2Frust_by_example" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/XcaliberRage/rust_by_example on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/XcaliberRage/rust_by_example
[INFO] finished tweaking git repo https://github.com/XcaliberRage/rust_by_example
[INFO] tweaked toml for git repo https://github.com/XcaliberRage/rust_by_example written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/XcaliberRage/rust_by_example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd3d6247ce065219d2f11d61665a3b28b4eed0e7b082e95266d116817cbc5dab
[INFO] running `Command { std: "docker" "start" "-a" "dd3d6247ce065219d2f11d61665a3b28b4eed0e7b082e95266d116817cbc5dab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd3d6247ce065219d2f11d61665a3b28b4eed0e7b082e95266d116817cbc5dab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd3d6247ce065219d2f11d61665a3b28b4eed0e7b082e95266d116817cbc5dab", kill_on_drop: false }`
[INFO] [stdout] dd3d6247ce065219d2f11d61665a3b28b4eed0e7b082e95266d116817cbc5dab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 905f533b4fa413b06a305c55d72764690b7fdd0cf6d0323fdc54a558143bcf73
[INFO] running `Command { std: "docker" "start" "-a" "905f533b4fa413b06a305c55d72764690b7fdd0cf6d0323fdc54a558143bcf73", kill_on_drop: false }`
[INFO] [stderr]     Checking RustByExample v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]  --> src/main.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 |         println!("Hello!");
[INFO] [stdout]   |                           ^
[INFO] [stdout] ...
[INFO] [stdout] 8 |     say_hello!()
[INFO] [stdout]   |     ------------ in this macro invocation
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]   = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]   = note: to ignore the value produced by the macro, add a semicolon after the invocation of `say_hello`
[INFO] [stdout]   = note: this warning originates in the macro `say_hello` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `RustByExample` 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_by_example`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trailing semicolon in macro used in expression position
[INFO] [stdout]  --> src/main.rs:3:27
[INFO] [stdout]   |
[INFO] [stdout] 3 |         println!("Hello!");
[INFO] [stdout]   |                           ^
[INFO] [stdout] ...
[INFO] [stdout] 8 |     say_hello!()
[INFO] [stdout]   |     ------------ in this macro invocation
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(semicolon_in_expressions_from_macros)]` on by default
[INFO] [stdout]   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stdout]   = note: for more information, see issue #79813 <https://github.com/rust-lang/rust/issues/79813>
[INFO] [stdout]   = note: macro invocations at the end of a block are treated as expressions
[INFO] [stdout]   = note: to ignore the value produced by the macro, add a semicolon after the invocation of `say_hello`
[INFO] [stdout]   = note: this warning originates in the macro `say_hello` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `RustByExample` 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_by_example`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.27s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "905f533b4fa413b06a305c55d72764690b7fdd0cf6d0323fdc54a558143bcf73", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "905f533b4fa413b06a305c55d72764690b7fdd0cf6d0323fdc54a558143bcf73", kill_on_drop: false }`
[INFO] [stdout] 905f533b4fa413b06a305c55d72764690b7fdd0cf6d0323fdc54a558143bcf73