[INFO] cloning repository https://github.com/lv042/Thread-Scheduler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lv042/Thread-Scheduler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flv042%2FThread-Scheduler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flv042%2FThread-Scheduler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0ae538807d85088f620b8624bddd5b22969a2908
[INFO] checking lv042/Thread-Scheduler against master#8424f8e8cdf07010967a57584fd647b30e930d4d for pr-120095
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flv042%2FThread-Scheduler" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lv042/Thread-Scheduler on toolchain 8424f8e8cdf07010967a57584fd647b30e930d4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8424f8e8cdf07010967a57584fd647b30e930d4d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lv042/Thread-Scheduler
[INFO] finished tweaking git repo https://github.com/lv042/Thread-Scheduler
[INFO] tweaked toml for git repo https://github.com/lv042/Thread-Scheduler written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/lv042/Thread-Scheduler 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" "+8424f8e8cdf07010967a57584fd647b30e930d4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+8424f8e8cdf07010967a57584fd647b30e930d4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e6af0ac912a5d75caa96e80eff8e9906c81b2d103c7df95267bf10be13fba578
[INFO] running `Command { std: "docker" "start" "-a" "e6af0ac912a5d75caa96e80eff8e9906c81b2d103c7df95267bf10be13fba578", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6af0ac912a5d75caa96e80eff8e9906c81b2d103c7df95267bf10be13fba578", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6af0ac912a5d75caa96e80eff8e9906c81b2d103c7df95267bf10be13fba578", kill_on_drop: false }`
[INFO] [stdout] e6af0ac912a5d75caa96e80eff8e9906c81b2d103c7df95267bf10be13fba578
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+8424f8e8cdf07010967a57584fd647b30e930d4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44d78f41d4f8686a288b07bde1a38e411f55575e7247427d05eae809246c9c50
[INFO] running `Command { std: "docker" "start" "-a" "44d78f41d4f8686a288b07bde1a38e411f55575e7247427d05eae809246c9c50", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stderr]     Checking num_cpus v1.14.0
[INFO] [stderr]     Checking RustTaskScheduler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:96:16
[INFO] [stdout]    |
[INFO] [stdout] 96 |             if (self.current_threads >= self.max_threads) {
[INFO] [stdout]    |                ^                                        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 96 -             if (self.current_threads >= self.max_threads) {
[INFO] [stdout] 96 +             if self.current_threads >= self.max_threads {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:96:16
[INFO] [stdout]    |
[INFO] [stdout] 96 |             if (self.current_threads >= self.max_threads) {
[INFO] [stdout]    |                ^                                        ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 96 -             if (self.current_threads >= self.max_threads) {
[INFO] [stdout] 96 +             if self.current_threads >= self.max_threads {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tr`
[INFO] [stdout]   --> src/main.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let tr = thread::spawn(move || {
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_tr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tr`
[INFO] [stdout]   --> src/main.rs:32:13
[INFO] [stdout]    |
[INFO] [stdout] 32 |         let tr = thread::spawn(move || {
[INFO] [stdout]    |             ^^ help: if this is intentional, prefix it with an underscore: `_tr`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `RustTaskScheduler` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `rust_task_scheduler`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: crate `RustTaskScheduler` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = help: convert the identifier to snake case: `rust_task_scheduler`
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "44d78f41d4f8686a288b07bde1a38e411f55575e7247427d05eae809246c9c50", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44d78f41d4f8686a288b07bde1a38e411f55575e7247427d05eae809246c9c50", kill_on_drop: false }`
[INFO] [stdout] 44d78f41d4f8686a288b07bde1a38e411f55575e7247427d05eae809246c9c50
[INFO] checking lv042/Thread-Scheduler against try#047472f299946caf090d1b5608ae4bd9f0416256+rustflags=-Ddereferencing_mut_binding for pr-120095
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flv042%2FThread-Scheduler" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lv042/Thread-Scheduler on toolchain 047472f299946caf090d1b5608ae4bd9f0416256
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+047472f299946caf090d1b5608ae4bd9f0416256" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lv042/Thread-Scheduler
[INFO] finished tweaking git repo https://github.com/lv042/Thread-Scheduler
[INFO] tweaked toml for git repo https://github.com/lv042/Thread-Scheduler written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/lv042/Thread-Scheduler 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" "+047472f299946caf090d1b5608ae4bd9f0416256" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+047472f299946caf090d1b5608ae4bd9f0416256" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0c0865c3e7c2e67fb70089ccd195774abebf307c8dc64de2bb709eb13fe99a5f
[INFO] running `Command { std: "docker" "start" "-a" "0c0865c3e7c2e67fb70089ccd195774abebf307c8dc64de2bb709eb13fe99a5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0c0865c3e7c2e67fb70089ccd195774abebf307c8dc64de2bb709eb13fe99a5f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c0865c3e7c2e67fb70089ccd195774abebf307c8dc64de2bb709eb13fe99a5f", kill_on_drop: false }`
[INFO] [stdout] 0c0865c3e7c2e67fb70089ccd195774abebf307c8dc64de2bb709eb13fe99a5f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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 -Ddereferencing_mut_binding" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+047472f299946caf090d1b5608ae4bd9f0416256" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61abedd832e9dd2a74529e34a626dd3a77680518cd17d9397a4fa46a0b48e499
[INFO] running `Command { std: "docker" "start" "-a" "61abedd832e9dd2a74529e34a626dd3a77680518cd17d9397a4fa46a0b48e499", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.138
[INFO] [stdout] error: linking with `cc` failed: exit status: 1
[INFO] [stdout]   |
[INFO] [stdout]   = note: LC_ALL="C" PATH="/opt/rustwide/rustup-home/toolchains/047472f299946caf090d1b5608ae4bd9f0416256/lib/rustlib/x86_64-unknown-linux-gnu/bin:/opt/rustwide/cargo-home/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" VSLANG="1033" "cc" "-m64" "/tmp/rustci4dqBJ/symbols.o" "/opt/rustwide/target/debug/build/libc-5e91507783098f95/build_script_build-5e91507783098f95.build_script_build.b4e62957d3531e1a-cgu.0.rcgu.o" "/opt/rustwide/target/debug/build/libc-5e91507783098f95/build_script_build-5e91507783098f95.build_script_build.b4e62957d3531e1a-cgu.1.rcgu.o" "/opt/rustwide/target/debug/build/libc-5e91507783098f95/build_script_build-5e91507783098f95.11a30q3hnfs5rm95.rcgu.o" "-Wl,--as-needed" "-L" "/opt/rustwide/target/debug/deps" "-L" "/opt/rustwide/rustup-home/toolchains/047472f299946caf090d1b5608ae4bd9f0416256/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/opt/rustwide/rustup-home/toolchains/047472f299946caf090d1b5608ae4bd9f0416256/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd-19d8bdaf9f223155.rlib" "/opt/rustwide/rustup-home/toolchains/047472f299946caf090d1b5608ae4bd9f0416256/lib/rustlib/x86_64-unknown-linux-gnu/lib/libpanic_unwind-89ad4240c90c0e03.rlib" "/opt/rustwide/rustup-home/toolchains/047472f299946caf090d1b5608ae4bd9f0416256/lib/rustlib/x86_64-unknown-linux-gnu/lib/libobject-49ef38daea3f49e1.rlib" "/opt/rustwide/rustup-home/toolchains/047472f299946caf090d1b5608ae4bd9f0416256/lib/rustlib/x86_64-unknown-linux-gnu/lib/libmemchr-8666dad6789c0484.rlib" "/opt/rustwide/rustup-home/toolchains/047472f299946caf090d1b5608ae4bd9f0416256/lib/rustlib/x86_64-unknown-linux-gnu/lib/libaddr2line-7b871242ae961a4e.rlib" "/opt/rustwide/rustup-home/toolchains/047472f299946caf090d1b5608ae4bd9f0416256/lib/rustlib/x86_64-unknown-linux-gnu/lib/libgimli-8d4074793ba35678.rlib" "/opt/rustwide/rustup-home/toolchains/047472f299946caf090d1b5608ae4bd9f0416256/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_demangle-ec84eb0416770982.rlib" "/opt/rustwide/rustup-home/toolchains/047472f299946caf090d1b5608ae4bd9f0416256/lib/rustlib/x86_64-unknown-linux-gnu/lib/libstd_detect-68539ddfb3806005.rlib" "/opt/rustwide/rustup-home/toolchains/047472f299946caf090d1b5608ae4bd9f0416256/lib/rustlib/x86_64-unknown-linux-gnu/lib/libhashbrown-ac61d465c61f24ac.rlib" "/opt/rustwide/rustup-home/toolchains/047472f299946caf090d1b5608ae4bd9f0416256/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_alloc-19d2d9343e8c3ab1.rlib" "/opt/rustwide/rustup-home/toolchains/047472f299946caf090d1b5608ae4bd9f0416256/lib/rustlib/x86_64-unknown-linux-gnu/lib/libminiz_oxide-e762a6d65f031366.rlib" "/opt/rustwide/rustup-home/toolchains/047472f299946caf090d1b5608ae4bd9f0416256/lib/rustlib/x86_64-unknown-linux-gnu/lib/libadler-e85e489d4408465b.rlib" "/opt/rustwide/rustup-home/toolchains/047472f299946caf090d1b5608ae4bd9f0416256/lib/rustlib/x86_64-unknown-linux-gnu/lib/libunwind-da335adb5acc7119.rlib" "/opt/rustwide/rustup-home/toolchains/047472f299946caf090d1b5608ae4bd9f0416256/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcfg_if-527e3e7decf6a631.rlib" "/opt/rustwide/rustup-home/toolchains/047472f299946caf090d1b5608ae4bd9f0416256/lib/rustlib/x86_64-unknown-linux-gnu/lib/liblibc-5f8c8143cdb8d04b.rlib" "/opt/rustwide/rustup-home/toolchains/047472f299946caf090d1b5608ae4bd9f0416256/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-b905197320c3903d.rlib" "/opt/rustwide/rustup-home/toolchains/047472f299946caf090d1b5608ae4bd9f0416256/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9686387289eaa322.rlib" "/opt/rustwide/rustup-home/toolchains/047472f299946caf090d1b5608ae4bd9f0416256/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-632ae0f28c5e55ff.rlib" "/opt/rustwide/rustup-home/toolchains/047472f299946caf090d1b5608ae4bd9f0416256/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-3166674eacfcf914.rlib" "-Wl,-Bdynamic" "-lgcc_s" "-lutil" "-lrt" "-lpthread" "-lm" "-ldl" "-lc" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/opt/rustwide/rustup-home/toolchains/047472f299946caf090d1b5608ae4bd9f0416256/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/opt/rustwide/target/debug/build/libc-5e91507783098f95/build_script_build-5e91507783098f95" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs"
[INFO] [stdout]   = note: /usr/bin/ld: final link failed: No space left on device
[INFO] [stdout]           collect2: error: ld returned 1 exit status
[INFO] [stdout]           
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `libc` (build script) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "61abedd832e9dd2a74529e34a626dd3a77680518cd17d9397a4fa46a0b48e499", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61abedd832e9dd2a74529e34a626dd3a77680518cd17d9397a4fa46a0b48e499", kill_on_drop: false }`
[INFO] [stdout] 61abedd832e9dd2a74529e34a626dd3a77680518cd17d9397a4fa46a0b48e499