[INFO] fetching crate mkserial 1.0.2...
[INFO] testing mkserial-1.0.2 against 1.60.0 for beta-1.61-1
[INFO] extracting crate mkserial 1.0.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate mkserial 1.0.2 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mkserial 1.0.2
[INFO] finished tweaking crates.io crate mkserial 1.0.2
[INFO] tweaked toml for crates.io crate mkserial 1.0.2 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate mkserial 1.0.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 624a92450a32f26e0744e1b84054e1ab84c05ce45b35a67fa23b69bbc1ee8c17
[INFO] running `Command { std: "docker" "start" "-a" "624a92450a32f26e0744e1b84054e1ab84c05ce45b35a67fa23b69bbc1ee8c17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "624a92450a32f26e0744e1b84054e1ab84c05ce45b35a67fa23b69bbc1ee8c17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "624a92450a32f26e0744e1b84054e1ab84c05ce45b35a67fa23b69bbc1ee8c17", kill_on_drop: false }`
[INFO] [stdout] 624a92450a32f26e0744e1b84054e1ab84c05ce45b35a67fa23b69bbc1ee8c17
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52475c4d08bb97b5292e475ad609ecea27be219bad1d435b22cf1be7d07d05ef
[INFO] running `Command { std: "docker" "start" "-a" "52475c4d08bb97b5292e475ad609ecea27be219bad1d435b22cf1be7d07d05ef", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling getrandom v0.2.4
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling mkserial v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.60s
[INFO] running `Command { std: "docker" "inspect" "52475c4d08bb97b5292e475ad609ecea27be219bad1d435b22cf1be7d07d05ef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52475c4d08bb97b5292e475ad609ecea27be219bad1d435b22cf1be7d07d05ef", kill_on_drop: false }`
[INFO] [stdout] 52475c4d08bb97b5292e475ad609ecea27be219bad1d435b22cf1be7d07d05ef
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8228b80a13c9c84b254bd6812660f0b87699e6603b39a0ac1b430ec6a981ac69
[INFO] running `Command { std: "docker" "start" "-a" "8228b80a13c9c84b254bd6812660f0b87699e6603b39a0ac1b430ec6a981ac69", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.117
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling getrandom v0.2.4
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling mkserial v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [optimized + debuginfo] target(s) in 11.62s
[INFO] running `Command { std: "docker" "inspect" "8228b80a13c9c84b254bd6812660f0b87699e6603b39a0ac1b430ec6a981ac69", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8228b80a13c9c84b254bd6812660f0b87699e6603b39a0ac1b430ec6a981ac69", kill_on_drop: false }`
[INFO] [stdout] 8228b80a13c9c84b254bd6812660f0b87699e6603b39a0ac1b430ec6a981ac69
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 60250083314e43336121741016a021d482df9aaf80d1c42e3e1ab9beef6cd4e2
[INFO] running `Command { std: "docker" "start" "-a" "60250083314e43336121741016a021d482df9aaf80d1c42e3e1ab9beef6cd4e2", kill_on_drop: false }`
[INFO] [stderr]     Finished test [optimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mkserial-76accd48a07fa40f)
[INFO] [stderr]      Running tests/sample.rs (/opt/rustwide/target/debug/deps/sample-087e4749c85132d5)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test sample_many ... ignored
[INFO] [stdout] test sample_few ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 14.66s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "60250083314e43336121741016a021d482df9aaf80d1c42e3e1ab9beef6cd4e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60250083314e43336121741016a021d482df9aaf80d1c42e3e1ab9beef6cd4e2", kill_on_drop: false }`
[INFO] [stdout] 60250083314e43336121741016a021d482df9aaf80d1c42e3e1ab9beef6cd4e2