[INFO] fetching crate combinations 0.1.0...
[INFO] testing combinations-0.1.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate combinations 0.1.0 into /workspace/builds/worker-53/source
[INFO] validating manifest of crates.io crate combinations 0.1.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate combinations 0.1.0
[INFO] finished tweaking crates.io crate combinations 0.1.0
[INFO] tweaked toml for crates.io crate combinations 0.1.0 written to /workspace/builds/worker-53/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ecc99d53304d2d4825b3a37193d0e56a2da87d4ad610adfd5dccbff9e494a439
[INFO] running `Command { std: "docker" "start" "-a" "ecc99d53304d2d4825b3a37193d0e56a2da87d4ad610adfd5dccbff9e494a439", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ecc99d53304d2d4825b3a37193d0e56a2da87d4ad610adfd5dccbff9e494a439", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ecc99d53304d2d4825b3a37193d0e56a2da87d4ad610adfd5dccbff9e494a439", kill_on_drop: false }`
[INFO] [stdout] ecc99d53304d2d4825b3a37193d0e56a2da87d4ad610adfd5dccbff9e494a439
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] beb2f6ff1cb5f8058deeae6eb3e63704799af2242d1401de651a1f45f5cae3c6
[INFO] running `Command { std: "docker" "start" "-a" "beb2f6ff1cb5f8058deeae6eb3e63704799af2242d1401de651a1f45f5cae3c6", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling combinations v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.66s
[INFO] running `Command { std: "docker" "inspect" "beb2f6ff1cb5f8058deeae6eb3e63704799af2242d1401de651a1f45f5cae3c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "beb2f6ff1cb5f8058deeae6eb3e63704799af2242d1401de651a1f45f5cae3c6", kill_on_drop: false }`
[INFO] [stdout] beb2f6ff1cb5f8058deeae6eb3e63704799af2242d1401de651a1f45f5cae3c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eeab81d3f3f1525258ee9e9afa37387ebe542e2951ac4a7a49b143a7929f1c40
[INFO] running `Command { std: "docker" "start" "-a" "eeab81d3f3f1525258ee9e9afa37387ebe542e2951ac4a7a49b143a7929f1c40", kill_on_drop: false }`
[INFO] [stderr]    Compiling combinations v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "eeab81d3f3f1525258ee9e9afa37387ebe542e2951ac4a7a49b143a7929f1c40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eeab81d3f3f1525258ee9e9afa37387ebe542e2951ac4a7a49b143a7929f1c40", kill_on_drop: false }`
[INFO] [stdout] eeab81d3f3f1525258ee9e9afa37387ebe542e2951ac4a7a49b143a7929f1c40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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=forbid" "-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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8c671f1a11aa74a035b440d05b15a87a966fb51476bed45709bb5a1e3ea0bcd7
[INFO] running `Command { std: "docker" "start" "-a" "8c671f1a11aa74a035b440d05b15a87a966fb51476bed45709bb5a1e3ea0bcd7", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/combinations-058623d02afa8dc5)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test tests::complicated ... ok
[INFO] [stdout] test tests::equals ... ok
[INFO] [stdout] test tests::t_123 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests combinations
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - Combinations<T>::new (line 32) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.96s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8c671f1a11aa74a035b440d05b15a87a966fb51476bed45709bb5a1e3ea0bcd7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c671f1a11aa74a035b440d05b15a87a966fb51476bed45709bb5a1e3ea0bcd7", kill_on_drop: false }`
[INFO] [stdout] 8c671f1a11aa74a035b440d05b15a87a966fb51476bed45709bb5a1e3ea0bcd7