[INFO] fetching crate cargo-emit 0.1.1...
[INFO] testing cargo-emit-0.1.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate cargo-emit 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate cargo-emit 0.1.1 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 cargo-emit 0.1.1
[INFO] finished tweaking crates.io crate cargo-emit 0.1.1
[INFO] tweaked toml for crates.io crate cargo-emit 0.1.1 written to /workspace/builds/worker-6/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-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be32d6682484752ff3b32fa135089073cd193b324e3821446c5bdc7d240570e4
[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" "be32d6682484752ff3b32fa135089073cd193b324e3821446c5bdc7d240570e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be32d6682484752ff3b32fa135089073cd193b324e3821446c5bdc7d240570e4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be32d6682484752ff3b32fa135089073cd193b324e3821446c5bdc7d240570e4", kill_on_drop: false }`
[INFO] [stdout] be32d6682484752ff3b32fa135089073cd193b324e3821446c5bdc7d240570e4
[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" "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] [stdout] afdf3e9e21e5230cfc2be7b6abde9592215865f54840af9da1bc1a9a19fe87c0
[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" "afdf3e9e21e5230cfc2be7b6abde9592215865f54840af9da1bc1a9a19fe87c0", kill_on_drop: false }`
[INFO] [stderr]    Compiling cargo-emit v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.26s
[INFO] running `Command { std: "docker" "inspect" "afdf3e9e21e5230cfc2be7b6abde9592215865f54840af9da1bc1a9a19fe87c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "afdf3e9e21e5230cfc2be7b6abde9592215865f54840af9da1bc1a9a19fe87c0", kill_on_drop: false }`
[INFO] [stdout] afdf3e9e21e5230cfc2be7b6abde9592215865f54840af9da1bc1a9a19fe87c0
[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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b93ab1a60caf52f10c321b5dcec65b51315b962b6505d8db0f4a855d9a361ece
[INFO] running `Command { std: "docker" "start" "-a" "b93ab1a60caf52f10c321b5dcec65b51315b962b6505d8db0f4a855d9a361ece", kill_on_drop: false }`
[INFO] [stderr]    Compiling cargo-emit v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.99s
[INFO] running `Command { std: "docker" "inspect" "b93ab1a60caf52f10c321b5dcec65b51315b962b6505d8db0f4a855d9a361ece", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b93ab1a60caf52f10c321b5dcec65b51315b962b6505d8db0f4a855d9a361ece", kill_on_drop: false }`
[INFO] [stdout] b93ab1a60caf52f10c321b5dcec65b51315b962b6505d8db0f4a855d9a361ece
[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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 95d221e39dfd976cca8d82d37a14cc6af2b0b8ea899ae2eed5cb96610328bad7
[INFO] running `Command { std: "docker" "start" "-a" "95d221e39dfd976cca8d82d37a14cc6af2b0b8ea899ae2eed5cb96610328bad7", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/cargo_emit-0e5120e3cd13e5dc
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests cargo-emit
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 23 tests
[INFO] [stdout] test src/rerun.rs - rerun_if_changed (line 29) ... ok
[INFO] [stdout] test src/rustc.rs - rustc_cdylib_link_arg (line 108) ... ok
[INFO] [stdout] test src/lib.rs - pair (line 103) ... ok
[INFO] [stdout] test src/rustc.rs - rustc_env (line 43) ... ok
[INFO] [stdout] test src/lib.rs - pair (line 120) ... ok
[INFO] [stdout] test src/rerun.rs - rerun_if_env_changed (line 49) ... ok
[INFO] [stdout] test src/lib.rs - pair (line 113) ... ok
[INFO] [stdout] test src/rustc.rs - rustc_cfg (line 5) ... ok
[INFO] [stdout] test src/rerun.rs - rerun_if_changed (line 5) ... ok
[INFO] [stdout] test src/rustc.rs - rustc_cfg (line 13) ... ok
[INFO] [stdout] test src/lib.rs - (line 49) ... ok
[INFO] [stdout] test src/rustc.rs - rustc_cdylib_link_arg (line 100) ... ok
[INFO] [stdout] test src/lib.rs - warning (line 137) ... ok
[INFO] [stdout] test src/lib.rs - warning (line 145) ... ok
[INFO] [stdout] test src/rerun.rs - rerun_if_env_changed (line 68) ... ok
[INFO] [stdout] test src/rustc.rs - rustc_cfg (line 26) ... ok
[INFO] [stdout] test src/rustc.rs - rustc_env (line 54) ... ok
[INFO] [stdout] test src/rustc.rs - rustc_link_lib (line 129) ... ok
[INFO] [stdout] test src/rustc.rs - rustc_flags (line 81) ... ok
[INFO] [stdout] test src/rustc.rs - rustc_link_search (line 175) ... ok
[INFO] [stdout] test src/rustc.rs - rustc_flags (line 72) ... ok
[INFO] [stdout] test src/rustc.rs - rustc_link_search (line 167) ... ok
[INFO] [stdout] test src/rustc.rs - rustc_link_lib (line 137) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 23 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "95d221e39dfd976cca8d82d37a14cc6af2b0b8ea899ae2eed5cb96610328bad7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95d221e39dfd976cca8d82d37a14cc6af2b0b8ea899ae2eed5cb96610328bad7", kill_on_drop: false }`
[INFO] [stdout] 95d221e39dfd976cca8d82d37a14cc6af2b0b8ea899ae2eed5cb96610328bad7