[INFO] fetching crate comprehension 0.2.0...
[INFO] testing comprehension-0.2.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate comprehension 0.2.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate comprehension 0.2.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate comprehension 0.2.0
[INFO] finished tweaking crates.io crate comprehension 0.2.0
[INFO] tweaked toml for crates.io crate comprehension 0.2.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b0a2b400ad97d2577812a6500d49234395d542229e44b9d03640c050e0a4955f
[INFO] running `Command { std: "docker" "start" "-a" "b0a2b400ad97d2577812a6500d49234395d542229e44b9d03640c050e0a4955f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b0a2b400ad97d2577812a6500d49234395d542229e44b9d03640c050e0a4955f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0a2b400ad97d2577812a6500d49234395d542229e44b9d03640c050e0a4955f", kill_on_drop: false }`
[INFO] [stdout] b0a2b400ad97d2577812a6500d49234395d542229e44b9d03640c050e0a4955f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 324ad38c74a3f34b6e20ff5a76fef574e2e697a7609948ee7aa9dfc291a4c844
[INFO] running `Command { std: "docker" "start" "-a" "324ad38c74a3f34b6e20ff5a76fef574e2e697a7609948ee7aa9dfc291a4c844", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling comprehension v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.52s
[INFO] running `Command { std: "docker" "inspect" "324ad38c74a3f34b6e20ff5a76fef574e2e697a7609948ee7aa9dfc291a4c844", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "324ad38c74a3f34b6e20ff5a76fef574e2e697a7609948ee7aa9dfc291a4c844", kill_on_drop: false }`
[INFO] [stdout] 324ad38c74a3f34b6e20ff5a76fef574e2e697a7609948ee7aa9dfc291a4c844
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 622791c4de88362944a6be260d1a9387373fbf490a18cc5eaf42ab4fff8ba0b4
[INFO] running `Command { std: "docker" "start" "-a" "622791c4de88362944a6be260d1a9387373fbf490a18cc5eaf42ab4fff8ba0b4", kill_on_drop: false }`
[INFO] [stderr]    Compiling comprehension v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `Command { std: "docker" "inspect" "622791c4de88362944a6be260d1a9387373fbf490a18cc5eaf42ab4fff8ba0b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "622791c4de88362944a6be260d1a9387373fbf490a18cc5eaf42ab4fff8ba0b4", kill_on_drop: false }`
[INFO] [stdout] 622791c4de88362944a6be260d1a9387373fbf490a18cc5eaf42ab4fff8ba0b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c1102bc0400bc26721788a90c971cabd35f9e7f53a36c912acb00c457a8ea5eb
[INFO] running `Command { std: "docker" "start" "-a" "c1102bc0400bc26721788a90c971cabd35f9e7f53a36c912acb00c457a8ea5eb", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/comprehension-03ad25ca124178ce)
[INFO] [stdout] 
[INFO] [stderr]      Running tests/test.rs (/opt/rustwide/target/debug/deps/test-4d456f538f2dea05)
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests comprehension
[INFO] [stdout] test test_iter ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test src/lib.rs - iter (line 16) ... ok
[INFO] [stdout] test src/lib.rs - iter (line 33) ... ok
[INFO] [stdout] test src/lib.rs - iter (line 53) ... ok
[INFO] [stdout] test src/lib.rs - iter (line 45) ... ok
[INFO] [stdout] test src/lib.rs - iter (line 24) ... ok
[INFO] [stdout] test src/lib.rs - product (line 202) ... ok
[INFO] [stdout] test src/lib.rs - sum (line 174) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 1.08s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c1102bc0400bc26721788a90c971cabd35f9e7f53a36c912acb00c457a8ea5eb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1102bc0400bc26721788a90c971cabd35f9e7f53a36c912acb00c457a8ea5eb", kill_on_drop: false }`
[INFO] [stdout] c1102bc0400bc26721788a90c971cabd35f9e7f53a36c912acb00c457a8ea5eb