[INFO] cloning repository https://github.com/sdreynolds/congenial-journey
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sdreynolds/congenial-journey" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdreynolds%2Fcongenial-journey", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdreynolds%2Fcongenial-journey'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 76e2c5a9993e735d3dabad51c2e59c04220dd5ce
[INFO] checking sdreynolds/congenial-journey against try#b047d5f4496a7526d91d0dddea494c05853f2a7b for pr-122661-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdreynolds%2Fcongenial-journey" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] [stderr] fatal: update_ref failed for ref 'HEAD': cannot update the ref 'refs/heads/main': unable to create directory for '/workspace/builds/worker-3-tc2/source/.git/logs/refs/heads/main': No such file or directory
[INFO] checking sdreynolds/congenial-journey against try#b047d5f4496a7526d91d0dddea494c05853f2a7b for pr-122661-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsdreynolds%2Fcongenial-journey" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sdreynolds/congenial-journey
[INFO] finished tweaking git repo https://github.com/sdreynolds/congenial-journey
[INFO] tweaked toml for git repo https://github.com/sdreynolds/congenial-journey written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sdreynolds/congenial-journey on toolchain b047d5f4496a7526d91d0dddea494c05853f2a7b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sdreynolds/congenial-journey 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" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f702fd058205515cfde4dde50fcb7ea3f2a105a9b6e510c3f2fbea68889eed66
[INFO] running `Command { std: "docker" "start" "-a" "f702fd058205515cfde4dde50fcb7ea3f2a105a9b6e510c3f2fbea68889eed66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f702fd058205515cfde4dde50fcb7ea3f2a105a9b6e510c3f2fbea68889eed66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f702fd058205515cfde4dde50fcb7ea3f2a105a9b6e510c3f2fbea68889eed66", kill_on_drop: false }`
[INFO] [stdout] f702fd058205515cfde4dde50fcb7ea3f2a105a9b6e510c3f2fbea68889eed66
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+b047d5f4496a7526d91d0dddea494c05853f2a7b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfdca82d0b23d0589c638e51976d81b0a18122e8d4a8a2da12fa071eadfe7b38
[INFO] running `Command { std: "docker" "start" "-a" "cfdca82d0b23d0589c638e51976d81b0a18122e8d4a8a2da12fa071eadfe7b38", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling siphasher v0.3.11
[INFO] [stderr]    Compiling serde v1.0.217
[INFO] [stderr]    Compiling serde_json v1.0.137
[INFO] [stderr]     Checking itoa v1.0.14
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking ryu v1.0.18
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]     Checking unicode-segmentation v1.12.0
[INFO] [stderr]     Checking phf_shared v0.11.2
[INFO] [stderr]     Checking string-builder v0.2.0
[INFO] [stderr]    Compiling phf_generator v0.11.2
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.94
[INFO] [stderr]    Compiling phf_macros v0.11.2
[INFO] [stderr]     Checking phf v0.11.2
[INFO] [stderr]     Checking jsonnet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `parse_errors` is never read
[INFO] [stdout]   --> src/expr.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct AST {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     parse_errors: Vec<ParseError>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AST` 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 `pos` and `message` are never read
[INFO] [stdout]   --> src/expr.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | struct ParseError {
[INFO] [stdout]    |        ---------- fields in this struct
[INFO] [stdout] 53 |     pos: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 54 |     message: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `parse_errors` is never read
[INFO] [stdout]   --> src/expr.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 8  | pub struct AST {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 13 |     parse_errors: Vec<ParseError>,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AST` 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 `pos` and `message` are never read
[INFO] [stdout]   --> src/expr.rs:53:5
[INFO] [stdout]    |
[INFO] [stdout] 52 | struct ParseError {
[INFO] [stdout]    |        ---------- fields in this struct
[INFO] [stdout] 53 |     pos: usize,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 54 |     message: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.03s
[INFO] running `Command { std: "docker" "inspect" "cfdca82d0b23d0589c638e51976d81b0a18122e8d4a8a2da12fa071eadfe7b38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfdca82d0b23d0589c638e51976d81b0a18122e8d4a8a2da12fa071eadfe7b38", kill_on_drop: false }`
[INFO] [stdout] cfdca82d0b23d0589c638e51976d81b0a18122e8d4a8a2da12fa071eadfe7b38