[INFO] fetching crate ligature-test-suite 0.1.0...
[INFO] checking ligature-test-suite-0.1.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] extracting crate ligature-test-suite 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate ligature-test-suite 0.1.0
[INFO] finished tweaking crates.io crate ligature-test-suite 0.1.0
[INFO] tweaked toml for crates.io crate ligature-test-suite 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ligature-test-suite 0.1.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 18 packages to latest compatible versions
[INFO] [stderr]       Adding ligature v0.5.0 (available: v0.8.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ligature v0.5.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 075dcd31d795a953bb2850ae0a78fd5e88ff0f4ab62d3ffffae459222ff57d35
[INFO] running `Command { std: "docker" "start" "-a" "075dcd31d795a953bb2850ae0a78fd5e88ff0f4ab62d3ffffae459222ff57d35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "075dcd31d795a953bb2850ae0a78fd5e88ff0f4ab62d3ffffae459222ff57d35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "075dcd31d795a953bb2850ae0a78fd5e88ff0f4ab62d3ffffae459222ff57d35", kill_on_drop: false }`
[INFO] [stdout] 075dcd31d795a953bb2850ae0a78fd5e88ff0f4ab62d3ffffae459222ff57d35
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 777b46f93fe83a9e51402b78b43552a4de4c1b1ab4188add2bc4e3a88d6d011d
[INFO] running `Command { std: "docker" "start" "-a" "777b46f93fe83a9e51402b78b43552a4de4c1b1ab4188add2bc4e3a88d6d011d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.101
[INFO] [stderr]    Compiling unicode-ident v1.0.18
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]     Checking memchr v2.7.5
[INFO] [stderr]    Compiling serde v1.0.219
[INFO] [stderr]     Checking regex-syntax v0.8.6
[INFO] [stderr]     Checking cfg-if v1.0.3
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]     Checking aho-corasick v1.1.3
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.106
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking regex-automata v0.4.10
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking regex v1.11.2
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking ligature v0.5.0
[INFO] [stderr]     Checking ligature-test-suite v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `LigatureTestSuite` is never constructed
[INFO] [stdout]  --> src/lib.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct LigatureTestSuite {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `LigatureTestSuite` is never constructed
[INFO] [stdout]  --> src/lib.rs:7:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | struct LigatureTestSuite {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 16.15s
[INFO] running `Command { std: "docker" "inspect" "777b46f93fe83a9e51402b78b43552a4de4c1b1ab4188add2bc4e3a88d6d011d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "777b46f93fe83a9e51402b78b43552a4de4c1b1ab4188add2bc4e3a88d6d011d", kill_on_drop: false }`
[INFO] [stdout] 777b46f93fe83a9e51402b78b43552a4de4c1b1ab4188add2bc4e3a88d6d011d