[INFO] fetching crate fastjson 0.0.1...
[INFO] testing fastjson-0.0.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate fastjson 0.0.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate fastjson 0.0.1 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 fastjson 0.0.1
[INFO] finished tweaking crates.io crate fastjson 0.0.1
[INFO] tweaked toml for crates.io crate fastjson 0.0.1 written to /workspace/builds/worker-8/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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", 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] a76520b0ab918700869bf215f5c9e04e6ddbbc24bf1c1d67567ba79522173036
[INFO] running `Command { std: "docker" "start" "-a" "a76520b0ab918700869bf215f5c9e04e6ddbbc24bf1c1d67567ba79522173036", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a76520b0ab918700869bf215f5c9e04e6ddbbc24bf1c1d67567ba79522173036", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a76520b0ab918700869bf215f5c9e04e6ddbbc24bf1c1d67567ba79522173036", kill_on_drop: false }`
[INFO] [stdout] a76520b0ab918700869bf215f5c9e04e6ddbbc24bf1c1d67567ba79522173036
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/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] 32f5bf5700427f7ab974f4efcd19b4147c9f96e2c933c59de635eb153c5ed07a
[INFO] running `Command { std: "docker" "start" "-a" "32f5bf5700427f7ab974f4efcd19b4147c9f96e2c933c59de635eb153c5ed07a", kill_on_drop: false }`
[INFO] [stderr]    Compiling fastjson v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "32f5bf5700427f7ab974f4efcd19b4147c9f96e2c933c59de635eb153c5ed07a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32f5bf5700427f7ab974f4efcd19b4147c9f96e2c933c59de635eb153c5ed07a", kill_on_drop: false }`
[INFO] [stdout] 32f5bf5700427f7ab974f4efcd19b4147c9f96e2c933c59de635eb153c5ed07a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 64ab9783292390603d38dd7b463aa3a209644aa07c48506d6209d39e4ebb9c82
[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" "64ab9783292390603d38dd7b463aa3a209644aa07c48506d6209d39e4ebb9c82", kill_on_drop: false }`
[INFO] [stderr]    Compiling fastjson v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "64ab9783292390603d38dd7b463aa3a209644aa07c48506d6209d39e4ebb9c82", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "64ab9783292390603d38dd7b463aa3a209644aa07c48506d6209d39e4ebb9c82", kill_on_drop: false }`
[INFO] [stdout] 64ab9783292390603d38dd7b463aa3a209644aa07c48506d6209d39e4ebb9c82
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 086cdf0a9618b75d55f8519721ee6012469cf6a0a54d74d0b35fbe726749cbee
[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" "086cdf0a9618b75d55f8519721ee6012469cf6a0a54d74d0b35fbe726749cbee", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/fastjson-746e36d7203a1c13
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests fastjson
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "086cdf0a9618b75d55f8519721ee6012469cf6a0a54d74d0b35fbe726749cbee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "086cdf0a9618b75d55f8519721ee6012469cf6a0a54d74d0b35fbe726749cbee", kill_on_drop: false }`
[INFO] [stdout] 086cdf0a9618b75d55f8519721ee6012469cf6a0a54d74d0b35fbe726749cbee