[INFO] fetching crate shrapnel 0.1.0-alpha.29...
[INFO] testing shrapnel-0.1.0-alpha.29 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate shrapnel 0.1.0-alpha.29 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate shrapnel 0.1.0-alpha.29 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate shrapnel 0.1.0-alpha.29
[INFO] finished tweaking crates.io crate shrapnel 0.1.0-alpha.29
[INFO] tweaked toml for crates.io crate shrapnel 0.1.0-alpha.29 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate shrapnel 0.1.0-alpha.29 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c4010c1669475ae663e5c70bb29a44a0fadf35542eb17364bacef0cbb4f1206b
[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" "c4010c1669475ae663e5c70bb29a44a0fadf35542eb17364bacef0cbb4f1206b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4010c1669475ae663e5c70bb29a44a0fadf35542eb17364bacef0cbb4f1206b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4010c1669475ae663e5c70bb29a44a0fadf35542eb17364bacef0cbb4f1206b", kill_on_drop: false }`
[INFO] [stdout] c4010c1669475ae663e5c70bb29a44a0fadf35542eb17364bacef0cbb4f1206b
[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" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9293d3edbf5305c3f3169875c08b91153291b3b428015cdbb230a97d01086fa5
[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" "9293d3edbf5305c3f3169875c08b91153291b3b428015cdbb230a97d01086fa5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling linked-hash-map v0.5.2
[INFO] [stderr]    Compiling yaml-rust v0.4.3
[INFO] [stderr]    Compiling atty v0.2.13
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling shrapnel v0.1.0-alpha.29 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.52s
[INFO] running `Command { std: "docker" "inspect" "9293d3edbf5305c3f3169875c08b91153291b3b428015cdbb230a97d01086fa5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9293d3edbf5305c3f3169875c08b91153291b3b428015cdbb230a97d01086fa5", kill_on_drop: false }`
[INFO] [stdout] 9293d3edbf5305c3f3169875c08b91153291b3b428015cdbb230a97d01086fa5
[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" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2fbe043f329ed3ac7bf9f6d429ba9cbbb60508a22122141c6f1e579c4fa2f65d
[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" "2fbe043f329ed3ac7bf9f6d429ba9cbbb60508a22122141c6f1e579c4fa2f65d", kill_on_drop: false }`
[INFO] [stderr]    Compiling shrapnel v0.1.0-alpha.29 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.82s
[INFO] running `Command { std: "docker" "inspect" "2fbe043f329ed3ac7bf9f6d429ba9cbbb60508a22122141c6f1e579c4fa2f65d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fbe043f329ed3ac7bf9f6d429ba9cbbb60508a22122141c6f1e579c4fa2f65d", kill_on_drop: false }`
[INFO] [stdout] 2fbe043f329ed3ac7bf9f6d429ba9cbbb60508a22122141c6f1e579c4fa2f65d
[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" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 10a310f481bcf01d7e29c850f42bcb27160882d7016ca8d1d4c08bfbd2cddd87
[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" "10a310f481bcf01d7e29c850f42bcb27160882d7016ca8d1d4c08bfbd2cddd87", 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/shrapnel-1b4b15e35b0393c0
[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" "10a310f481bcf01d7e29c850f42bcb27160882d7016ca8d1d4c08bfbd2cddd87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10a310f481bcf01d7e29c850f42bcb27160882d7016ca8d1d4c08bfbd2cddd87", kill_on_drop: false }`
[INFO] [stdout] 10a310f481bcf01d7e29c850f42bcb27160882d7016ca8d1d4c08bfbd2cddd87