[INFO] updating cached repository https://github.com/azdavis/try-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 978907b7fb4f815f5bbd859552aba93795ecf90a
[INFO] checking azdavis/try-rust/978907b7fb4f815f5bbd859552aba93795ecf90a against try#24cd45d7714ba43afd4b8e62fb677b069b21c4a5 for pr-129543
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fazdavis%2Ftry-rust" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/azdavis/try-rust on toolchain 24cd45d7714ba43afd4b8e62fb677b069b21c4a5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/azdavis/try-rust
[INFO] finished tweaking git repo https://github.com/azdavis/try-rust
[INFO] tweaked toml for git repo https://github.com/azdavis/try-rust written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/azdavis/try-rust 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" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] df7fad891fd628821fcfa91e733d45f9919e5644b74c32b309a6f3021b80fa35
[INFO] running `Command { std: "docker" "start" "-a" "df7fad891fd628821fcfa91e733d45f9919e5644b74c32b309a6f3021b80fa35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "df7fad891fd628821fcfa91e733d45f9919e5644b74c32b309a6f3021b80fa35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "df7fad891fd628821fcfa91e733d45f9919e5644b74c32b309a6f3021b80fa35", kill_on_drop: false }`
[INFO] [stdout] df7fad891fd628821fcfa91e733d45f9919e5644b74c32b309a6f3021b80fa35
[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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+24cd45d7714ba43afd4b8e62fb677b069b21c4a5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 05a0ca70cd6c1af41ed27e7ea8e1a865ff8e92fe4ce52a4c1bb44ba8de1c3604
[INFO] running `Command { std: "docker" "start" "-a" "05a0ca70cd6c1af41ed27e7ea8e1a865ff8e92fe4ce52a4c1bb44ba8de1c3604", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr] note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr] note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr] note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking communicator v0.1.0 (/opt/rustwide/workdir/communicator)
[INFO] [stderr]     Checking minigrep v0.1.0 (/opt/rustwide/workdir/minigrep)
[INFO] [stderr]     Checking rust-from-c v0.1.0 (/opt/rustwide/workdir/rust-from-c)
[INFO] [stderr]     Checking web-server v0.1.0 (/opt/rustwide/workdir/web-server)
[INFO] [stderr]     Checking sandbox v0.1.0 (/opt/rustwide/workdir/sandbox)
[INFO] [stderr]     Checking macros v0.1.0 (/opt/rustwide/workdir/macros)
[INFO] [stdout] warning: fields `foo`, `heh`, and `lel` are never read
[INFO] [stdout]   --> macros/src/main.rs:11:3
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Settings {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 11 |   foo: bool,
[INFO] [stdout]    |   ^^^
[INFO] [stdout] 12 |   heh: i32,
[INFO] [stdout]    |   ^^^
[INFO] [stdout] 13 |   lel: Vec<String>,
[INFO] [stdout]    |   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Settings` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `foo`, `heh`, and `lel` are never read
[INFO] [stdout]   --> macros/src/main.rs:11:3
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct Settings {
[INFO] [stdout]    |        -------- fields in this struct
[INFO] [stdout] 11 |   foo: bool,
[INFO] [stdout]    |   ^^^
[INFO] [stdout] 12 |   heh: i32,
[INFO] [stdout]    |   ^^^
[INFO] [stdout] 13 |   lel: Vec<String>,
[INFO] [stdout]    |   ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Settings` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling c-from-rust v0.1.0 (/opt/rustwide/workdir/c-from-rust)
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking guessing-game v0.1.0 (/opt/rustwide/workdir/guessing-game)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.04s
[INFO] running `Command { std: "docker" "inspect" "05a0ca70cd6c1af41ed27e7ea8e1a865ff8e92fe4ce52a4c1bb44ba8de1c3604", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05a0ca70cd6c1af41ed27e7ea8e1a865ff8e92fe4ce52a4c1bb44ba8de1c3604", kill_on_drop: false }`
[INFO] [stdout] 05a0ca70cd6c1af41ed27e7ea8e1a865ff8e92fe4ce52a4c1bb44ba8de1c3604