[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 try#78c81ee3917a99dcff6e2e6822800f0492c415c3 for pr-148967
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXcaliberRage%2Frust_by_example" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[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-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/XcaliberRage/rust_by_example on toolchain 78c81ee3917a99dcff6e2e6822800f0492c415c3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/XcaliberRage/rust_by_example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "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
[ERROR] error running command: no output for 300 seconds
[INFO] checking XcaliberRage/rust_by_example against try#78c81ee3917a99dcff6e2e6822800f0492c415c3 for pr-148967
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXcaliberRage%2Frust_by_example" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[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-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/XcaliberRage/rust_by_example on toolchain 78c81ee3917a99dcff6e2e6822800f0492c415c3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/XcaliberRage/rust_by_example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52fcf004dc73d51301b4ddef2fc281717dc8f78ba24512c7ad0061e76fc39b04
[INFO] running `Command { std: "docker" "start" "-a" "52fcf004dc73d51301b4ddef2fc281717dc8f78ba24512c7ad0061e76fc39b04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52fcf004dc73d51301b4ddef2fc281717dc8f78ba24512c7ad0061e76fc39b04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52fcf004dc73d51301b4ddef2fc281717dc8f78ba24512c7ad0061e76fc39b04", kill_on_drop: false }`
[INFO] [stdout] 52fcf004dc73d51301b4ddef2fc281717dc8f78ba24512c7ad0061e76fc39b04
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+78c81ee3917a99dcff6e2e6822800f0492c415c3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f68cb1fc001d4cd2c51e6f63d16762ec52dc28e75075fc7fa7793a95cd99f8fa
[INFO] running `Command { std: "docker" "start" "-a" "f68cb1fc001d4cd2c51e6f63d16762ec52dc28e75075fc7fa7793a95cd99f8fa", kill_on_drop: false }`
[INFO] [stderr]     Checking RustByExample v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: 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]   = 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: `#[deny(semicolon_in_expressions_from_macros)]` (part of `#[deny(future_incompatible)]`) on by default
[INFO] [stdout]   = note: this error originates in the macro `say_hello` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: 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]   = 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: `#[deny(semicolon_in_expressions_from_macros)]` (part of `#[deny(future_incompatible)]`) on by default
[INFO] [stdout]   = note: this error originates in the macro `say_hello` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `RustByExample` (bin "RustByExample" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `RustByExample` (bin "RustByExample") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "f68cb1fc001d4cd2c51e6f63d16762ec52dc28e75075fc7fa7793a95cd99f8fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f68cb1fc001d4cd2c51e6f63d16762ec52dc28e75075fc7fa7793a95cd99f8fa", kill_on_drop: false }`
[INFO] [stdout] f68cb1fc001d4cd2c51e6f63d16762ec52dc28e75075fc7fa7793a95cd99f8fa