[INFO] fetching crate lx 0.4.0...
[INFO] checking lx-0.4.0 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate lx 0.4.0 into /workspace/builds/worker-2-tc2/source
[INFO] removed /workspace/builds/worker-2-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate lx 0.4.0
[INFO] finished tweaking crates.io crate lx 0.4.0
[INFO] tweaked toml for crates.io crate lx 0.4.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate lx 0.4.0 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f6b0b774092c3a312e4b9dbe5d9b9b9f8787d80e6dc1997f0369e43b123860ae
[INFO] running `Command { std: "docker" "start" "-a" "f6b0b774092c3a312e4b9dbe5d9b9b9f8787d80e6dc1997f0369e43b123860ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f6b0b774092c3a312e4b9dbe5d9b9b9f8787d80e6dc1997f0369e43b123860ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6b0b774092c3a312e4b9dbe5d9b9b9f8787d80e6dc1997f0369e43b123860ae", kill_on_drop: false }`
[INFO] [stdout] f6b0b774092c3a312e4b9dbe5d9b9b9f8787d80e6dc1997f0369e43b123860ae
[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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a670e7514628152b60e1457a4b2516dd147cc6f600a42c272108e247a20ca199
[INFO] running `Command { std: "docker" "start" "-a" "a670e7514628152b60e1457a4b2516dd147cc6f600a42c272108e247a20ca199", kill_on_drop: false }`
[INFO] [stderr]     Checking lx v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/spawn.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |         if let Err(err) = execve(arg.filename, arg.argv, arg.envp) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: avoid using labels containing only the digits `0` and `1` in inline assembly
[INFO] [stdout]   --> src/syscalls/clone.rs:75:10
[INFO] [stdout]    |
[INFO] [stdout] 75 |         "1:",
[INFO] [stdout]    |          ^ use a different label that doesn't start with `0` or `1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: start numbering with `2` instead
[INFO] [stdout]    = note: an LLVM bug makes these labels ambiguous with a binary literal number on x86
[INFO] [stdout]    = note: see <https://github.com/llvm/llvm-project/issues/99547> for more information
[INFO] [stdout]    = note: `#[deny(binary_asm_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: avoid using labels containing only the digits `0` and `1` in inline assembly
[INFO] [stdout]    --> src/syscalls/clone.rs:111:10
[INFO] [stdout]     |
[INFO] [stdout] 111 |         "1:",
[INFO] [stdout]     |          ^ use a different label that doesn't start with `0` or `1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: start numbering with `2` instead
[INFO] [stdout]     = note: an LLVM bug makes these labels ambiguous with a binary literal number on x86
[INFO] [stdout]     = note: see <https://github.com/llvm/llvm-project/issues/99547> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lx` (lib) due to 2 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: irrefutable `if let` pattern
[INFO] [stdout]   --> src/spawn.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |         if let Err(err) = execve(arg.filename, arg.argv, arg.envp) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this pattern will always match, so the `if let` is useless
[INFO] [stdout]    = help: consider replacing the `if let` with a `let`
[INFO] [stdout]    = note: `#[warn(irrefutable_let_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: avoid using labels containing only the digits `0` and `1` in inline assembly
[INFO] [stdout]   --> src/syscalls/clone.rs:75:10
[INFO] [stdout]    |
[INFO] [stdout] 75 |         "1:",
[INFO] [stdout]    |          ^ use a different label that doesn't start with `0` or `1`
[INFO] [stdout]    |
[INFO] [stdout]    = help: start numbering with `2` instead
[INFO] [stdout]    = note: an LLVM bug makes these labels ambiguous with a binary literal number on x86
[INFO] [stdout]    = note: see <https://github.com/llvm/llvm-project/issues/99547> for more information
[INFO] [stdout]    = note: `#[deny(binary_asm_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: avoid using labels containing only the digits `0` and `1` in inline assembly
[INFO] [stdout]    --> src/syscalls/clone.rs:111:10
[INFO] [stdout]     |
[INFO] [stdout] 111 |         "1:",
[INFO] [stdout]     |          ^ use a different label that doesn't start with `0` or `1`
[INFO] [stdout]     |
[INFO] [stdout]     = help: start numbering with `2` instead
[INFO] [stdout]     = note: an LLVM bug makes these labels ambiguous with a binary literal number on x86
[INFO] [stdout]     = note: see <https://github.com/llvm/llvm-project/issues/99547> for more information
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `lx` (lib test) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "a670e7514628152b60e1457a4b2516dd147cc6f600a42c272108e247a20ca199", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a670e7514628152b60e1457a4b2516dd147cc6f600a42c272108e247a20ca199", kill_on_drop: false }`
[INFO] [stdout] a670e7514628152b60e1457a4b2516dd147cc6f600a42c272108e247a20ca199