[INFO] cloning repository https://github.com/fm-elpac/nbc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fm-elpac/nbc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffm-elpac%2Fnbc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffm-elpac%2Fnbc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c45ab97f69e50e4aee3335c6ac7bd53881d41409
[INFO] checking fm-elpac/nbc against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124305
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffm-elpac%2Fnbc" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fm-elpac/nbc on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fm-elpac/nbc
[INFO] finished tweaking git repo https://github.com/fm-elpac/nbc
[INFO] tweaked toml for git repo https://github.com/fm-elpac/nbc written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/fm-elpac/nbc 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" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking fm-elpac/nbc against try#44523379467bbd2050af931a040d10c2b764b443 for pr-124305
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffm-elpac%2Fnbc" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fm-elpac/nbc on toolchain 44523379467bbd2050af931a040d10c2b764b443
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44523379467bbd2050af931a040d10c2b764b443" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fm-elpac/nbc
[INFO] finished tweaking git repo https://github.com/fm-elpac/nbc
[INFO] tweaked toml for git repo https://github.com/fm-elpac/nbc written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/fm-elpac/nbc 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" "+44523379467bbd2050af931a040d10c2b764b443" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded built v0.6.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+44523379467bbd2050af931a040d10c2b764b443" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f89eb4508550b19c9ef9c09ed61e7c3b54db1f47cb893d662249cdc17e9a8d1a
[INFO] running `Command { std: "docker" "start" "-a" "f89eb4508550b19c9ef9c09ed61e7c3b54db1f47cb893d662249cdc17e9a8d1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f89eb4508550b19c9ef9c09ed61e7c3b54db1f47cb893d662249cdc17e9a8d1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f89eb4508550b19c9ef9c09ed61e7c3b54db1f47cb893d662249cdc17e9a8d1a", kill_on_drop: false }`
[INFO] [stdout] f89eb4508550b19c9ef9c09ed61e7c3b54db1f47cb893d662249cdc17e9a8d1a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+44523379467bbd2050af931a040d10c2b764b443" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dcd44826ab4d6ed54ab53b2a7a9d91552d0103fdc7a4f517156fecb0e8cd794a
[INFO] running `Command { std: "docker" "start" "-a" "dcd44826ab4d6ed54ab53b2a7a9d91552d0103fdc7a4f517156fecb0e8cd794a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.66
[INFO] [stderr]    Compiling unicode-ident v1.0.11
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling serde v1.0.188
[INFO] [stderr]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling hashbrown v0.14.0
[INFO] [stderr]    Compiling equivalent v1.0.1
[INFO] [stderr]    Compiling semver v1.0.18
[INFO] [stderr]    Compiling winnow v0.5.15
[INFO] [stderr]    Compiling unicode-bidi v0.3.13
[INFO] [stderr]    Compiling percent-encoding v2.3.0
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]    Compiling num_threads v0.1.6
[INFO] [stderr]    Compiling time-core v0.1.1
[INFO] [stderr]    Compiling deranged v0.3.8
[INFO] [stderr]    Compiling vergen v8.2.4
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling form_urlencoded v1.2.0
[INFO] [stderr]    Compiling itoa v1.0.9
[INFO] [stderr]    Compiling lock_api v0.4.10
[INFO] [stderr]    Compiling parking_lot_core v0.9.8
[INFO] [stderr]     Checking smallvec v1.11.0
[INFO] [stderr]    Compiling rustix v0.38.11
[INFO] [stderr]    Compiling serde_json v1.0.105
[INFO] [stderr]     Checking memchr v2.6.2
[INFO] [stderr]     Checking regex-syntax v0.7.5
[INFO] [stderr]     Checking bitflags v2.4.0
[INFO] [stderr]     Checking ryu v1.0.15
[INFO] [stderr]    Compiling indexmap v2.0.0
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.5
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking aho-corasick v1.0.5
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]     Checking mio v0.8.8
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking socket2 v0.5.3
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling time v0.3.28
[INFO] [stderr]    Compiling syn v2.0.29
[INFO] [stderr]    Compiling idna v0.4.0
[INFO] [stderr]     Checking is-terminal v0.4.9
[INFO] [stderr]    Compiling url v2.4.1
[INFO] [stderr]     Checking regex-automata v0.3.7
[INFO] [stderr]     Checking regex v1.9.4
[INFO] [stderr]     Checking env_logger v0.10.0
[INFO] [stderr]    Compiling serde_derive v1.0.188
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]     Checking tokio v1.32.0
[INFO] [stderr]    Compiling serde_spanned v0.6.3
[INFO] [stderr]    Compiling toml_datetime v0.6.3
[INFO] [stderr]    Compiling toml_edit v0.19.14
[INFO] [stderr]     Checking libnbc v0.1.0 (/opt/rustwide/workdir/libnbc)
[INFO] [stdout] warning: enum `初级树` is never used
[INFO] [stdout]  --> libnbc/src/c/a/t/at.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum 初级树 {
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `初级树` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `初级树` is never used
[INFO] [stdout]  --> libnbc/src/c/a/t/at.rs:5:10
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub enum 初级树 {
[INFO] [stdout]   |          ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `初级树` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]  --> libnbc/src/c/t/ast.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct 语法树包装(语法树, 源代码位置);
[INFO] [stdout]   |            ---------- ^^^^^^  ^^^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            fields in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `语法树包装` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct 语法树包装((), ());
[INFO] [stdout]   |                       ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `0` and `1` are never read
[INFO] [stdout]  --> libnbc/src/c/t/ast.rs:9:18
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct 语法树包装(语法树, 源代码位置);
[INFO] [stdout]   |            ---------- ^^^^^^  ^^^^^^^^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            fields in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `语法树包装` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the fields to be of unit type to suppress this warning while preserving the field numbering, or remove the fields
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct 语法树包装((), ());
[INFO] [stdout]   |                       ~~  ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling toml v0.7.6
[INFO] [stderr]    Compiling cargo-lock v9.0.0
[INFO] [stderr]    Compiling built v0.6.1
[INFO] [stderr]    Compiling nbc v0.1.0 (/opt/rustwide/workdir/nbc)
[INFO] [stderr]    Compiling nbf v0.1.0 (/opt/rustwide/workdir/nbf)
[INFO] [stderr]    Compiling nbs v0.1.0 (/opt/rustwide/workdir/nbs)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.38s
[INFO] running `Command { std: "docker" "inspect" "dcd44826ab4d6ed54ab53b2a7a9d91552d0103fdc7a4f517156fecb0e8cd794a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dcd44826ab4d6ed54ab53b2a7a9d91552d0103fdc7a4f517156fecb0e8cd794a", kill_on_drop: false }`
[INFO] [stdout] dcd44826ab4d6ed54ab53b2a7a9d91552d0103fdc7a4f517156fecb0e8cd794a