[INFO] fetching crate ligature-in-memory 0.1.0...
[INFO] testing ligature-in-memory-0.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate ligature-in-memory 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate ligature-in-memory 0.1.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ligature-in-memory 0.1.0
[INFO] finished tweaking crates.io crate ligature-in-memory 0.1.0
[INFO] tweaked toml for crates.io crate ligature-in-memory 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 47d02ebd2634678117bc8f13a27d020fc42f1cfe87ff9c7bd9f9c99bc2a5a002
[INFO] running `Command { std: "docker" "start" "-a" "47d02ebd2634678117bc8f13a27d020fc42f1cfe87ff9c7bd9f9c99bc2a5a002", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "47d02ebd2634678117bc8f13a27d020fc42f1cfe87ff9c7bd9f9c99bc2a5a002", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47d02ebd2634678117bc8f13a27d020fc42f1cfe87ff9c7bd9f9c99bc2a5a002", kill_on_drop: false }`
[INFO] [stdout] 47d02ebd2634678117bc8f13a27d020fc42f1cfe87ff9c7bd9f9c99bc2a5a002
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ebef1db8944b82b941de679c917be080da0fea0c0c70a63705e47acfb4a1f9c2
[INFO] running `Command { std: "docker" "start" "-a" "ebef1db8944b82b941de679c917be080da0fea0c0c70a63705e47acfb4a1f9c2", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling static_assertions v1.1.0
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr]    Compiling archery v0.4.0
[INFO] [stderr]    Compiling rpds v0.9.0
[INFO] [stderr]    Compiling serde_derive v1.0.136
[INFO] [stderr]    Compiling serde v1.0.136
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling ligature v0.5.0
[INFO] [stderr]    Compiling ligature-in-memory v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct is never constructed: `LigatureInMemory`
[INFO] [stdout]   --> src/lib.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct LigatureInMemory {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/lib.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new() -> LigatureInMemory {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.20s
[INFO] running `Command { std: "docker" "inspect" "ebef1db8944b82b941de679c917be080da0fea0c0c70a63705e47acfb4a1f9c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebef1db8944b82b941de679c917be080da0fea0c0c70a63705e47acfb4a1f9c2", kill_on_drop: false }`
[INFO] [stdout] ebef1db8944b82b941de679c917be080da0fea0c0c70a63705e47acfb4a1f9c2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fd85123e75e1a38de54291b1bc71789bd700cc63bbc97d464a4db43171db1051
[INFO] running `Command { std: "docker" "start" "-a" "fd85123e75e1a38de54291b1bc71789bd700cc63bbc97d464a4db43171db1051", kill_on_drop: false }`
[INFO] [stdout] warning: struct is never constructed: `LigatureInMemory`
[INFO] [stdout]   --> src/lib.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct LigatureInMemory {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/lib.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new() -> LigatureInMemory {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling ligature-in-memory v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `LigatureInMemory`
[INFO] [stdout]   --> src/lib.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | struct LigatureInMemory {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/lib.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub fn new() -> LigatureInMemory {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.43s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/ligature_in_memory-5979e9e05ef06647)
[INFO] [stderr]   Executable tests/tests.rs (/opt/rustwide/target/debug/deps/tests-1795ae6520902096)
[INFO] running `Command { std: "docker" "inspect" "fd85123e75e1a38de54291b1bc71789bd700cc63bbc97d464a4db43171db1051", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd85123e75e1a38de54291b1bc71789bd700cc63bbc97d464a4db43171db1051", kill_on_drop: false }`
[INFO] [stdout] fd85123e75e1a38de54291b1bc71789bd700cc63bbc97d464a4db43171db1051
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e591c1cebf2cc2092bd5dbe106f9ec5382a65138dd7834a7b52c2b633ad233ca
[INFO] running `Command { std: "docker" "start" "-a" "e591c1cebf2cc2092bd5dbe106f9ec5382a65138dd7834a7b52c2b633ad233ca", kill_on_drop: false }`
[INFO] [stderr] warning: struct is never constructed: `LigatureInMemory`
[INFO] [stderr]   --> src/lib.rs:10:8
[INFO] [stderr]    |
[INFO] [stderr] 10 | struct LigatureInMemory {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]   --> src/lib.rs:15:12
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub fn new() -> LigatureInMemory {
[INFO] [stderr]    |            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `ligature-in-memory` (lib) generated 2 warnings
[INFO] [stderr] warning: `ligature-in-memory` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ligature_in_memory-5979e9e05ef06647)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/tests.rs (/opt/rustwide/target/debug/deps/tests-1795ae6520902096)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ligature-in-memory
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "e591c1cebf2cc2092bd5dbe106f9ec5382a65138dd7834a7b52c2b633ad233ca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e591c1cebf2cc2092bd5dbe106f9ec5382a65138dd7834a7b52c2b633ad233ca", kill_on_drop: false }`
[INFO] [stdout] e591c1cebf2cc2092bd5dbe106f9ec5382a65138dd7834a7b52c2b633ad233ca