[INFO] fetching crate serde_single_or_vec 1.0.1...
[INFO] testing serde_single_or_vec-1.0.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate serde_single_or_vec 1.0.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate serde_single_or_vec 1.0.1 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate serde_single_or_vec 1.0.1
[INFO] finished tweaking crates.io crate serde_single_or_vec 1.0.1
[INFO] tweaked toml for crates.io crate serde_single_or_vec 1.0.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 02490ffa0b601b05038d7fd966a1612ef8316c082cd902a0156fa48a2aae7cdf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "02490ffa0b601b05038d7fd966a1612ef8316c082cd902a0156fa48a2aae7cdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02490ffa0b601b05038d7fd966a1612ef8316c082cd902a0156fa48a2aae7cdf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02490ffa0b601b05038d7fd966a1612ef8316c082cd902a0156fa48a2aae7cdf", kill_on_drop: false }`
[INFO] [stdout] 02490ffa0b601b05038d7fd966a1612ef8316c082cd902a0156fa48a2aae7cdf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c53a1d9d1c25d770e485f6c852252982b80306fe91b1edeee28085bfaa4525c3
[INFO] running `Command { std: "docker" "start" "-a" "c53a1d9d1c25d770e485f6c852252982b80306fe91b1edeee28085bfaa4525c3", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling serde_single_or_vec v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.80s
[INFO] running `Command { std: "docker" "inspect" "c53a1d9d1c25d770e485f6c852252982b80306fe91b1edeee28085bfaa4525c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c53a1d9d1c25d770e485f6c852252982b80306fe91b1edeee28085bfaa4525c3", kill_on_drop: false }`
[INFO] [stdout] c53a1d9d1c25d770e485f6c852252982b80306fe91b1edeee28085bfaa4525c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6a590c4539f85e36cf840af279a6aeac74843a8a707e678dcdbced7de7f84503
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6a590c4539f85e36cf840af279a6aeac74843a8a707e678dcdbced7de7f84503", kill_on_drop: false }`
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling serde_json v1.0.61
[INFO] [stderr]    Compiling serde_single_or_vec v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.63s
[INFO] running `Command { std: "docker" "inspect" "6a590c4539f85e36cf840af279a6aeac74843a8a707e678dcdbced7de7f84503", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a590c4539f85e36cf840af279a6aeac74843a8a707e678dcdbced7de7f84503", kill_on_drop: false }`
[INFO] [stdout] 6a590c4539f85e36cf840af279a6aeac74843a8a707e678dcdbced7de7f84503
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 958e872cdb9ff79f3867596895187108a9bf82397f1dc5b91488dd76734525be
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "958e872cdb9ff79f3867596895187108a9bf82397f1dc5b91488dd76734525be", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/serde_single_or_vec-3600f2809209f2f0
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test tests::none ... ok
[INFO] [stdout] test tests::enm ... ok
[INFO] [stdout] test tests::i8 ... ok
[INFO] [stdout] test tests::rec ... ok
[INFO] [stdout] test tests::seq ... ok
[INFO] [stdout] test tests::u16 ... ok
[INFO] [stdout] test tests::some ... ok
[INFO] [stdout] test tests::u32 ... ok
[INFO] [stdout] test tests::u64 ... ok
[INFO] [stdout] test tests::u8 ... ok
[INFO] [stdout] test tests::unit ... ok
[INFO] [stdout] test tests::strct ... ok
[INFO] [stdout] test tests::str ... ok
[INFO] [stdout] test tests::bytes_buf ... ok
[INFO] [stdout] test tests::string ... ok
[INFO] [stdout] test tests::char ... ok
[INFO] [stdout] test tests::f64 ... ok
[INFO] [stdout] test tests::i16 ... ok
[INFO] [stdout] test tests::i32 ... ok
[INFO] [stdout] test tests::bool ... ok
[INFO] [stdout] test tests::i64 ... ok
[INFO] [stdout] test tests::f32 ... ok
[INFO] [stdout] test tests::empty ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests serde_single_or_vec
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 64) ... ok
[INFO] [stdout] test src/lib.rs - (line 76) ... ok
[INFO] [stdout] test src/lib.rs - (line 36) ... ok
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "958e872cdb9ff79f3867596895187108a9bf82397f1dc5b91488dd76734525be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "958e872cdb9ff79f3867596895187108a9bf82397f1dc5b91488dd76734525be", kill_on_drop: false }`
[INFO] [stdout] 958e872cdb9ff79f3867596895187108a9bf82397f1dc5b91488dd76734525be