[INFO] fetching crate optional_take 0.1.0...
[INFO] testing optional_take-0.1.0 against beta-2022-04-10 for beta-1.61-1
[INFO] extracting crate optional_take 0.1.0 into /workspace/builds/worker-17/source
[INFO] validating manifest of crates.io crate optional_take 0.1.0 on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate optional_take 0.1.0
[INFO] finished tweaking crates.io crate optional_take 0.1.0
[INFO] tweaked toml for crates.io crate optional_take 0.1.0 written to /workspace/builds/worker-17/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 83fbc12180fc3064394072c290ccc48a475ba2d551c7123eb69a6a76bdf11761
[INFO] running `Command { std: "docker" "start" "-a" "83fbc12180fc3064394072c290ccc48a475ba2d551c7123eb69a6a76bdf11761", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "83fbc12180fc3064394072c290ccc48a475ba2d551c7123eb69a6a76bdf11761", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83fbc12180fc3064394072c290ccc48a475ba2d551c7123eb69a6a76bdf11761", kill_on_drop: false }`
[INFO] [stdout] 83fbc12180fc3064394072c290ccc48a475ba2d551c7123eb69a6a76bdf11761
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 76f02ac678fe55b659e25c674b5719ce339f563cf395c29c3e74c4b8811d0901
[INFO] running `Command { std: "docker" "start" "-a" "76f02ac678fe55b659e25c674b5719ce339f563cf395c29c3e74c4b8811d0901", kill_on_drop: false }`
[INFO] [stderr]    Compiling optional_take v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.72s
[INFO] running `Command { std: "docker" "inspect" "76f02ac678fe55b659e25c674b5719ce339f563cf395c29c3e74c4b8811d0901", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76f02ac678fe55b659e25c674b5719ce339f563cf395c29c3e74c4b8811d0901", kill_on_drop: false }`
[INFO] [stdout] 76f02ac678fe55b659e25c674b5719ce339f563cf395c29c3e74c4b8811d0901
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5410f11ede92560e5706c33a4dc97be2f7c6cdd554f29ea4b1e95a115b4b2957
[INFO] running `Command { std: "docker" "start" "-a" "5410f11ede92560e5706c33a4dc97be2f7c6cdd554f29ea4b1e95a115b4b2957", kill_on_drop: false }`
[INFO] [stderr]    Compiling optional_take v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.49s
[INFO] [stderr]   Executable unittests src/lib.rs (/opt/rustwide/target/debug/deps/optional_take-d9b26f1949cd3533)
[INFO] running `Command { std: "docker" "inspect" "5410f11ede92560e5706c33a4dc97be2f7c6cdd554f29ea4b1e95a115b4b2957", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5410f11ede92560e5706c33a4dc97be2f7c6cdd554f29ea4b1e95a115b4b2957", kill_on_drop: false }`
[INFO] [stdout] 5410f11ede92560e5706c33a4dc97be2f7c6cdd554f29ea4b1e95a115b4b2957
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-17/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" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9ffe063f4e40cb02f077b485a201a091015f2799168578a26e06166af1241932
[INFO] running `Command { std: "docker" "start" "-a" "9ffe063f4e40cb02f077b485a201a091015f2799168578a26e06166af1241932", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stdout] running 0 tests
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/optional_take-d9b26f1949cd3533)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests optional_take
[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 1 test
[INFO] [stdout] test src/lib.rs - io (line 13) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.80s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9ffe063f4e40cb02f077b485a201a091015f2799168578a26e06166af1241932", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9ffe063f4e40cb02f077b485a201a091015f2799168578a26e06166af1241932", kill_on_drop: false }`
[INFO] [stdout] 9ffe063f4e40cb02f077b485a201a091015f2799168578a26e06166af1241932