[INFO] cloning repository https://github.com/collinsmith/rust-by-example
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/collinsmith/rust-by-example" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcollinsmith%2Frust-by-example", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcollinsmith%2Frust-by-example'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a198148af655a4d5fbd1b4fe7bd16c046395606b
[INFO] testing collinsmith/rust-by-example against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcollinsmith%2Frust-by-example" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/collinsmith/rust-by-example on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/collinsmith/rust-by-example
[INFO] finished tweaking git repo https://github.com/collinsmith/rust-by-example
[INFO] tweaked toml for git repo https://github.com/collinsmith/rust-by-example written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/collinsmith/rust-by-example already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb73443b1b7b65de65f44ef6873f449b18e125b5acd212959cd2d84dd30f62b4
[INFO] running `Command { std: "docker" "start" "-a" "bb73443b1b7b65de65f44ef6873f449b18e125b5acd212959cd2d84dd30f62b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb73443b1b7b65de65f44ef6873f449b18e125b5acd212959cd2d84dd30f62b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb73443b1b7b65de65f44ef6873f449b18e125b5acd212959cd2d84dd30f62b4", kill_on_drop: false }`
[INFO] [stdout] bb73443b1b7b65de65f44ef6873f449b18e125b5acd212959cd2d84dd30f62b4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f535edd508dc39820c90f0a4cd6862e62c099f9a6ba33dc296b61af8b6311289
[INFO] running `Command { std: "docker" "start" "-a" "f535edd508dc39820c90f0a4cd6862e62c099f9a6ba33dc296b61af8b6311289", kill_on_drop: false }`
[INFO] [stderr]    Compiling linked_list v0.1.0 (/opt/rustwide/workdir/3-2-3-linked_list)
[INFO] [stderr]    Compiling formatting v0.1.0 (/opt/rustwide/workdir/1-2-3-formatting)
[INFO] [stderr]    Compiling casting v0.1.0 (/opt/rustwide/workdir/5-1-casting)
[INFO] [stderr]    Compiling formatted-print v0.1.0 (/opt/rustwide/workdir/1-2-0-formatted-print)
[INFO] [stderr]    Compiling comments v0.1.0 (/opt/rustwide/workdir/1-1-0-comments)
[INFO] [stderr]    Compiling hello-world v0.1.0 (/opt/rustwide/workdir/1-0-hello-world)
[INFO] [stderr]    Compiling arrays_and_slices v0.1.0 (/opt/rustwide/workdir/2-3-arrays_and_slices)
[INFO] [stderr]    Compiling debug v0.1.0 (/opt/rustwide/workdir/1-2-1-debug)
[INFO] [stderr]    Compiling enums v0.1.0 (/opt/rustwide/workdir/3-2-0-enums)
[INFO] [stderr]    Compiling tuples v0.1.0 (/opt/rustwide/workdir/2-2-tuples)
[INFO] [stderr]    Compiling display v0.1.0 (/opt/rustwide/workdir/1-2-2-display)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.03s
[INFO] running `Command { std: "docker" "inspect" "f535edd508dc39820c90f0a4cd6862e62c099f9a6ba33dc296b61af8b6311289", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f535edd508dc39820c90f0a4cd6862e62c099f9a6ba33dc296b61af8b6311289", kill_on_drop: false }`
[INFO] [stdout] f535edd508dc39820c90f0a4cd6862e62c099f9a6ba33dc296b61af8b6311289
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2d536760a0e134b3a2c8ebeab6c3e3202a1d7def90d4d52d9938db7bcbe48d13
[INFO] running `Command { std: "docker" "start" "-a" "2d536760a0e134b3a2c8ebeab6c3e3202a1d7def90d4d52d9938db7bcbe48d13", kill_on_drop: false }`
[INFO] [stderr]    Compiling formatted-print v0.1.0 (/opt/rustwide/workdir/1-2-0-formatted-print)
[INFO] [stderr]    Compiling enums v0.1.0 (/opt/rustwide/workdir/3-2-0-enums)
[INFO] [stderr]    Compiling debug v0.1.0 (/opt/rustwide/workdir/1-2-1-debug)
[INFO] [stderr]    Compiling display v0.1.0 (/opt/rustwide/workdir/1-2-2-display)
[INFO] [stderr]    Compiling arrays_and_slices v0.1.0 (/opt/rustwide/workdir/2-3-arrays_and_slices)
[INFO] [stderr]    Compiling linked_list v0.1.0 (/opt/rustwide/workdir/3-2-3-linked_list)
[INFO] [stderr]    Compiling comments v0.1.0 (/opt/rustwide/workdir/1-1-0-comments)
[INFO] [stderr]    Compiling casting v0.1.0 (/opt/rustwide/workdir/5-1-casting)
[INFO] [stderr]    Compiling tuples v0.1.0 (/opt/rustwide/workdir/2-2-tuples)
[INFO] [stderr]    Compiling hello-world v0.1.0 (/opt/rustwide/workdir/1-0-hello-world)
[INFO] [stderr]    Compiling formatting v0.1.0 (/opt/rustwide/workdir/1-2-3-formatting)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "2d536760a0e134b3a2c8ebeab6c3e3202a1d7def90d4d52d9938db7bcbe48d13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2d536760a0e134b3a2c8ebeab6c3e3202a1d7def90d4d52d9938db7bcbe48d13", kill_on_drop: false }`
[INFO] [stdout] 2d536760a0e134b3a2c8ebeab6c3e3202a1d7def90d4d52d9938db7bcbe48d13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c833a9c0c919886e19948b3d723dea2d2978fa5d578010586458cd8a34cbc66a
[INFO] running `Command { std: "docker" "start" "-a" "c833a9c0c919886e19948b3d723dea2d2978fa5d578010586458cd8a34cbc66a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/arrays_and_slices-3502e855db957d0c)
[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 unittests (/opt/rustwide/target/debug/deps/casting-940fe3fb282136fb)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/comments-264549aba1eefe27)
[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] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/debug-6950591b977e0f83)
[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 unittests (/opt/rustwide/target/debug/deps/display-f361bff6d49a96be)
[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] [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 unittests (/opt/rustwide/target/debug/deps/enums-c1e7920bdba50337)
[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 unittests (/opt/rustwide/target/debug/deps/formatted_print-76b26a40c16784a3)
[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 unittests (/opt/rustwide/target/debug/deps/formatting-60eccaf1533d87cb)
[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 unittests (/opt/rustwide/target/debug/deps/hello_world-4f873d443d6ca977)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::hello_world_identity ... ok
[INFO] [stdout] test tests::hello_world_asymmetric ... ok
[INFO] [stdout] test tests::hello_world_symmetric ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/linked_list-4fe3dc348f424020)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/tuples-5b1dc05c6ed660c9)
[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] [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" "c833a9c0c919886e19948b3d723dea2d2978fa5d578010586458cd8a34cbc66a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c833a9c0c919886e19948b3d723dea2d2978fa5d578010586458cd8a34cbc66a", kill_on_drop: false }`
[INFO] [stdout] c833a9c0c919886e19948b3d723dea2d2978fa5d578010586458cd8a34cbc66a