[INFO] cloning repository https://github.com/lantos1618/c_lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lantos1618/c_lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flantos1618%2Fc_lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flantos1618%2Fc_lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 682e7813e8d3703586b63879e9c767958d7849bb
[INFO] checking lantos1618/c_lang against try#0c70cfbec949d241375e31c5a42066be70c720fc for pr-149681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flantos1618%2Fc_lang" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lantos1618/c_lang
[INFO] finished tweaking git repo https://github.com/lantos1618/c_lang
[INFO] tweaked toml for git repo https://github.com/lantos1618/c_lang written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lantos1618/c_lang on toolchain 0c70cfbec949d241375e31c5a42066be70c720fc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c70cfbec949d241375e31c5a42066be70c720fc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lantos1618/c_lang 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" "+0c70cfbec949d241375e31c5a42066be70c720fc" "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 lantos1618/c_lang against try#0c70cfbec949d241375e31c5a42066be70c720fc for pr-149681
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flantos1618%2Fc_lang" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/lantos1618/c_lang
[INFO] finished tweaking git repo https://github.com/lantos1618/c_lang
[INFO] tweaked toml for git repo https://github.com/lantos1618/c_lang written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/lantos1618/c_lang on toolchain 0c70cfbec949d241375e31c5a42066be70c720fc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0c70cfbec949d241375e31c5a42066be70c720fc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/lantos1618/c_lang 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" "+0c70cfbec949d241375e31c5a42066be70c720fc" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0c70cfbec949d241375e31c5a42066be70c720fc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cdcb476b1ff9c2f1548cd996b193a2a3ec43649a9f605bd23b4979776dbbb0d9
[INFO] running `Command { std: "docker" "start" "-a" "cdcb476b1ff9c2f1548cd996b193a2a3ec43649a9f605bd23b4979776dbbb0d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cdcb476b1ff9c2f1548cd996b193a2a3ec43649a9f605bd23b4979776dbbb0d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdcb476b1ff9c2f1548cd996b193a2a3ec43649a9f605bd23b4979776dbbb0d9", kill_on_drop: false }`
[INFO] [stdout] cdcb476b1ff9c2f1548cd996b193a2a3ec43649a9f605bd23b4979776dbbb0d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+0c70cfbec949d241375e31c5a42066be70c720fc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 83da8d0aff8efd5d2db455839c33802b03ff34467d9a747d0365ad477fd728ac
[INFO] running `Command { std: "docker" "start" "-a" "83da8d0aff8efd5d2db455839c33802b03ff34467d9a747d0365ad477fd728ac", kill_on_drop: false }`
[INFO] [stderr]    Compiling portable-atomic v1.10.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking console v0.15.10
[INFO] [stderr]     Checking is-terminal v0.4.15
[INFO] [stderr]     Checking dirs-sys v0.4.1
[INFO] [stderr]     Checking rayon v1.10.0
[INFO] [stderr]     Checking env_logger v0.10.2
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]     Checking dirs v5.0.1
[INFO] [stderr]     Checking indicatif v0.17.11
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling test-case-core v3.3.1
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling serde_derive v1.0.217
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling test-case-macros v3.3.1
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking test-case v3.3.1
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking serde v1.0.217
[INFO] [stderr]     Checking serde_json v1.0.138
[INFO] [stderr]     Checking c_lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `estimate_content_length` is never used
[INFO] [stdout]    --> src/c_writer.rs:143:8
[INFO] [stdout]     |
[INFO] [stdout]  51 | impl CWriter {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 143 |     fn estimate_content_length(&self, content: &str) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `estimate_content_length` is never used
[INFO] [stdout]    --> src/c_writer.rs:143:8
[INFO] [stdout]     |
[INFO] [stdout]  51 | impl CWriter {
[INFO] [stdout]     | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 143 |     fn estimate_content_length(&self, content: &str) -> usize {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `opt_level` and `incremental` are never read
[INFO] [stdout]    --> src/bin/compiler.rs:142:5
[INFO] [stdout]     |
[INFO] [stdout] 115 | struct Opt {
[INFO] [stdout]     |        --- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 142 |     opt_level: u8,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     incremental: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Warning` and `Note` are never constructed
[INFO] [stdout]    --> src/bin/compiler.rs:182:5
[INFO] [stdout]     |
[INFO] [stdout] 180 | enum DiagnosticLevel {
[INFO] [stdout]     |      --------------- variants in this enum
[INFO] [stdout] 181 |     Error,
[INFO] [stdout] 182 |     Warning,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 183 |     Note,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DiagnosticLevel` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `opt_level` and `incremental` are never read
[INFO] [stdout]    --> src/bin/compiler.rs:142:5
[INFO] [stdout]     |
[INFO] [stdout] 115 | struct Opt {
[INFO] [stdout]     |        --- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 142 |     opt_level: u8,
[INFO] [stdout]     |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 158 |     incremental: bool,
[INFO] [stdout]     |     ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Opt` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Warning` and `Note` are never constructed
[INFO] [stdout]    --> src/bin/compiler.rs:182:5
[INFO] [stdout]     |
[INFO] [stdout] 180 | enum DiagnosticLevel {
[INFO] [stdout]     |      --------------- variants in this enum
[INFO] [stdout] 181 |     Error,
[INFO] [stdout] 182 |     Warning,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 183 |     Note,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `DiagnosticLevel` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.53s
[INFO] running `Command { std: "docker" "inspect" "83da8d0aff8efd5d2db455839c33802b03ff34467d9a747d0365ad477fd728ac", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83da8d0aff8efd5d2db455839c33802b03ff34467d9a747d0365ad477fd728ac", kill_on_drop: false }`
[INFO] [stdout] 83da8d0aff8efd5d2db455839c33802b03ff34467d9a747d0365ad477fd728ac