[INFO] fetching crate mkserial 1.0.3...
[INFO] testing mkserial-1.0.3 against 1.90.0 for beta-1.91-3
[INFO] extracting crate mkserial 1.0.3 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate mkserial 1.0.3
[INFO] finished tweaking crates.io crate mkserial 1.0.3
[INFO] tweaked toml for crates.io crate mkserial 1.0.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mkserial 1.0.3 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mkserial 1.0.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f06e043a0795364f2635f25b60ee66585a378f231124d65b4fbd4b70d1eb3cff
[INFO] running `Command { std: "docker" "start" "-a" "f06e043a0795364f2635f25b60ee66585a378f231124d65b4fbd4b70d1eb3cff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f06e043a0795364f2635f25b60ee66585a378f231124d65b4fbd4b70d1eb3cff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f06e043a0795364f2635f25b60ee66585a378f231124d65b4fbd4b70d1eb3cff", kill_on_drop: false }`
[INFO] [stdout] f06e043a0795364f2635f25b60ee66585a378f231124d65b4fbd4b70d1eb3cff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec1cec709cc920ff76abd151d5540dae2335b0249b70e0321449aa2ff9a4cc27
[INFO] running `Command { std: "docker" "start" "-a" "ec1cec709cc920ff76abd151d5540dae2335b0249b70e0321449aa2ff9a4cc27", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling mkserial v1.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.49s
[INFO] running `Command { std: "docker" "inspect" "ec1cec709cc920ff76abd151d5540dae2335b0249b70e0321449aa2ff9a4cc27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec1cec709cc920ff76abd151d5540dae2335b0249b70e0321449aa2ff9a4cc27", kill_on_drop: false }`
[INFO] [stdout] ec1cec709cc920ff76abd151d5540dae2335b0249b70e0321449aa2ff9a4cc27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6b9c9d7d697e7e119b96bb08132a793dabeb2db540bd968edd28b96b85641f7b
[INFO] running `Command { std: "docker" "start" "-a" "6b9c9d7d697e7e119b96bb08132a793dabeb2db540bd968edd28b96b85641f7b", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling mkserial v1.0.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 22.24s
[INFO] running `Command { std: "docker" "inspect" "6b9c9d7d697e7e119b96bb08132a793dabeb2db540bd968edd28b96b85641f7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6b9c9d7d697e7e119b96bb08132a793dabeb2db540bd968edd28b96b85641f7b", kill_on_drop: false }`
[INFO] [stdout] 6b9c9d7d697e7e119b96bb08132a793dabeb2db540bd968edd28b96b85641f7b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8fb8e117eb11b57839e492b3b108dfbde534554d075bd789258b86c9762650dd
[INFO] running `Command { std: "docker" "start" "-a" "8fb8e117eb11b57839e492b3b108dfbde534554d075bd789258b86c9762650dd", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [optimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/mkserial-507c1484e11cb6d6)
[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] [stderr]      Running tests/sample.rs (/opt/rustwide/target/debug/deps/sample-05c7ecfe53c4399f)
[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 35.60s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8fb8e117eb11b57839e492b3b108dfbde534554d075bd789258b86c9762650dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fb8e117eb11b57839e492b3b108dfbde534554d075bd789258b86c9762650dd", kill_on_drop: false }`
[INFO] [stdout] 8fb8e117eb11b57839e492b3b108dfbde534554d075bd789258b86c9762650dd