[INFO] fetching crate rlfsc 0.2.2...
[INFO] checking rlfsc-0.2.2 against try#742889a08e10036dc30b8a7308f2a2a15b706883 for pr-103450-1
[INFO] extracting crate rlfsc 0.2.2 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rlfsc 0.2.2 on toolchain 742889a08e10036dc30b8a7308f2a2a15b706883
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+742889a08e10036dc30b8a7308f2a2a15b706883" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rlfsc 0.2.2
[INFO] finished tweaking crates.io crate rlfsc 0.2.2
[INFO] tweaked toml for crates.io crate rlfsc 0.2.2 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate rlfsc 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+742889a08e10036dc30b8a7308f2a2a15b706883" "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-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+742889a08e10036dc30b8a7308f2a2a15b706883" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e495ddbc330e74d4ef5bc2d5eb97ebdc0e834fdf10dee30174a93c2f28d178da
[INFO] running `Command { std: "docker" "start" "-a" "e495ddbc330e74d4ef5bc2d5eb97ebdc0e834fdf10dee30174a93c2f28d178da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e495ddbc330e74d4ef5bc2d5eb97ebdc0e834fdf10dee30174a93c2f28d178da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e495ddbc330e74d4ef5bc2d5eb97ebdc0e834fdf10dee30174a93c2f28d178da", kill_on_drop: false }`
[INFO] [stdout] e495ddbc330e74d4ef5bc2d5eb97ebdc0e834fdf10dee30174a93c2f28d178da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+742889a08e10036dc30b8a7308f2a2a15b706883" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 27840141efb39d9bceb1afe3e084ab4dad7d72f5c7cef81f5ef6bb6678461dc1
[INFO] running `Command { std: "docker" "start" "-a" "27840141efb39d9bceb1afe3e084ab4dad7d72f5c7cef81f5ef6bb6678461dc1", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.4.3
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling fnv v1.0.7
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling beef v0.4.4
[INFO] [stderr]    Compiling rug v1.11.0
[INFO] [stderr]    Compiling regex-syntax v0.6.22
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling utf8-ranges v1.0.4
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking az v1.1.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking yansi v0.5.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking rlimit v0.4.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]    Compiling logos-derive v0.11.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking logos v0.11.4
[INFO] [stderr]     Checking rlfsc v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `n_children`, `in_var_list`, `head` and `closing` are never read
[INFO] [stdout]    --> src/token.rs:279:5
[INFO] [stdout]     |
[INFO] [stdout] 278 | struct Level<'a> {
[INFO] [stdout]     |        ----- fields in this struct
[INFO] [stdout] 279 |     n_children: usize,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 280 |     in_var_list: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 284 |     head: Option<Option<SpanTok<'a>>>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 285 |     // Tokens to emit *before* closing the level.
[INFO] [stdout] 286 |     closing: Vec<SpanTok<'a>>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Level` 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: fields `n_children`, `in_var_list`, `head` and `closing` are never read
[INFO] [stdout]    --> src/token.rs:279:5
[INFO] [stdout]     |
[INFO] [stdout] 278 | struct Level<'a> {
[INFO] [stdout]     |        ----- fields in this struct
[INFO] [stdout] 279 |     n_children: usize,
[INFO] [stdout]     |     ^^^^^^^^^^
[INFO] [stdout] 280 |     in_var_list: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 284 |     head: Option<Option<SpanTok<'a>>>,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 285 |     // Tokens to emit *before* closing the level.
[INFO] [stdout] 286 |     closing: Vec<SpanTok<'a>>,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Level` 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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5m 27s
[INFO] running `Command { std: "docker" "inspect" "27840141efb39d9bceb1afe3e084ab4dad7d72f5c7cef81f5ef6bb6678461dc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27840141efb39d9bceb1afe3e084ab4dad7d72f5c7cef81f5ef6bb6678461dc1", kill_on_drop: false }`
[INFO] [stdout] 27840141efb39d9bceb1afe3e084ab4dad7d72f5c7cef81f5ef6bb6678461dc1