[INFO] fetching crate serde_single_or_vec 1.0.1...
[INFO] testing serde_single_or_vec-1.0.1 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] extracting crate serde_single_or_vec 1.0.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate serde_single_or_vec 1.0.1 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 68e66ae5aaf9f5c793de1c762a03c551d3dcd318769e2770d7fc161abe0df26c
[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" "68e66ae5aaf9f5c793de1c762a03c551d3dcd318769e2770d7fc161abe0df26c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "68e66ae5aaf9f5c793de1c762a03c551d3dcd318769e2770d7fc161abe0df26c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68e66ae5aaf9f5c793de1c762a03c551d3dcd318769e2770d7fc161abe0df26c", kill_on_drop: false }`
[INFO] [stdout] 68e66ae5aaf9f5c793de1c762a03c551d3dcd318769e2770d7fc161abe0df26c
[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=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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "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] 189fb7b677867e503f321c2438af4e20cf890763cd87dae6f14a954b0b89889a
[INFO] running `Command { std: "docker" "start" "-a" "189fb7b677867e503f321c2438af4e20cf890763cd87dae6f14a954b0b89889a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.52
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling serde_single_or_vec v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.62s
[INFO] running `Command { std: "docker" "inspect" "189fb7b677867e503f321c2438af4e20cf890763cd87dae6f14a954b0b89889a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "189fb7b677867e503f321c2438af4e20cf890763cd87dae6f14a954b0b89889a", kill_on_drop: false }`
[INFO] [stdout] 189fb7b677867e503f321c2438af4e20cf890763cd87dae6f14a954b0b89889a
[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=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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f5a6ec2f36bb7b561c488d6b3f9bc267bff2ae5b7d151b384c858d0b33fc74f
[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" "6f5a6ec2f36bb7b561c488d6b3f9bc267bff2ae5b7d151b384c858d0b33fc74f", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.59
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling arrayvec v0.5.2
[INFO] [stderr]    Compiling serde_single_or_vec v1.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 8.05s
[INFO] running `Command { std: "docker" "inspect" "6f5a6ec2f36bb7b561c488d6b3f9bc267bff2ae5b7d151b384c858d0b33fc74f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f5a6ec2f36bb7b561c488d6b3f9bc267bff2ae5b7d151b384c858d0b33fc74f", kill_on_drop: false }`
[INFO] [stdout] 6f5a6ec2f36bb7b561c488d6b3f9bc267bff2ae5b7d151b384c858d0b33fc74f
[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=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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", 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] 4c7cca14930d75ebed8ef1f631c42f83c691b14f491ab605962cec92d60eab6b
[INFO] running `Command { std: "docker" "start" "-a" "4c7cca14930d75ebed8ef1f631c42f83c691b14f491ab605962cec92d60eab6b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/serde_single_or_vec-9b32991afce41c10
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test tests::i16 ... ok
[INFO] [stderr]    Doc-tests serde_single_or_vec
[INFO] [stdout] test tests::f32 ... ok
[INFO] [stdout] test tests::bool ... ok
[INFO] [stdout] test tests::i32 ... ok
[INFO] [stdout] test tests::i8 ... ok
[INFO] [stdout] test tests::i64 ... ok
[INFO] [stdout] test tests::empty ... ok
[INFO] [stdout] test tests::enm ... ok
[INFO] [stdout] test tests::bytes_buf ... ok
[INFO] [stdout] test tests::char ... ok
[INFO] [stdout] test tests::none ... ok
[INFO] [stdout] test tests::rec ... ok
[INFO] [stdout] test tests::seq ... ok
[INFO] [stdout] test tests::str ... ok
[INFO] [stdout] test tests::strct ... ok
[INFO] [stdout] test tests::some ... ok
[INFO] [stdout] test tests::f64 ... ok
[INFO] [stdout] test tests::u8 ... ok
[INFO] [stdout] test tests::u16 ... ok
[INFO] [stdout] test tests::string ... ok
[INFO] [stdout] test tests::unit ... ok
[INFO] [stdout] test tests::u32 ... ok
[INFO] [stdout] test tests::u64 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test src/lib.rs - (line 36) ... ok
[INFO] [stdout] test src/lib.rs - (line 64) ... ok
[INFO] [stdout] test src/lib.rs - (line 8) ... ok
[INFO] [stdout] test src/lib.rs - (line 76) ... 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" "4c7cca14930d75ebed8ef1f631c42f83c691b14f491ab605962cec92d60eab6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c7cca14930d75ebed8ef1f631c42f83c691b14f491ab605962cec92d60eab6b", kill_on_drop: false }`
[INFO] [stdout] 4c7cca14930d75ebed8ef1f631c42f83c691b14f491ab605962cec92d60eab6b