[INFO] fetching crate let 0.1.0...
[INFO] testing let-0.1.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate let 0.1.0 into /workspace/builds/worker-86/source
[INFO] validating manifest of crates.io crate let 0.1.0 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 let 0.1.0
[INFO] finished tweaking crates.io crate let 0.1.0
[INFO] tweaked toml for crates.io crate let 0.1.0 written to /workspace/builds/worker-86/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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] a1876a67f6c1dfd4c3388ef92f020a75d0f4442da3d8096334b955a4b7686ec5
[INFO] running `Command { std: "docker" "start" "-a" "a1876a67f6c1dfd4c3388ef92f020a75d0f4442da3d8096334b955a4b7686ec5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a1876a67f6c1dfd4c3388ef92f020a75d0f4442da3d8096334b955a4b7686ec5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a1876a67f6c1dfd4c3388ef92f020a75d0f4442da3d8096334b955a4b7686ec5", kill_on_drop: false }`
[INFO] [stdout] a1876a67f6c1dfd4c3388ef92f020a75d0f4442da3d8096334b955a4b7686ec5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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] 36e08b00044fe1ee19f1cb4326a08df6aa2aebdf7b2d3e91ce21ae19e953d1ba
[INFO] running `Command { std: "docker" "start" "-a" "36e08b00044fe1ee19f1cb4326a08df6aa2aebdf7b2d3e91ce21ae19e953d1ba", kill_on_drop: false }`
[INFO] [stderr]    Compiling let v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.22s
[INFO] running `Command { std: "docker" "inspect" "36e08b00044fe1ee19f1cb4326a08df6aa2aebdf7b2d3e91ce21ae19e953d1ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36e08b00044fe1ee19f1cb4326a08df6aa2aebdf7b2d3e91ce21ae19e953d1ba", kill_on_drop: false }`
[INFO] [stdout] 36e08b00044fe1ee19f1cb4326a08df6aa2aebdf7b2d3e91ce21ae19e953d1ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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] 55e3a10bc3185bf0c1c604034fa4d23008ab1d2f93a159e956c038c2db531af1
[INFO] running `Command { std: "docker" "start" "-a" "55e3a10bc3185bf0c1c604034fa4d23008ab1d2f93a159e956c038c2db531af1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling let v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `Command { std: "docker" "inspect" "55e3a10bc3185bf0c1c604034fa4d23008ab1d2f93a159e956c038c2db531af1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55e3a10bc3185bf0c1c604034fa4d23008ab1d2f93a159e956c038c2db531af1", kill_on_drop: false }`
[INFO] [stdout] 55e3a10bc3185bf0c1c604034fa4d23008ab1d2f93a159e956c038c2db531af1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-86/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] ab7974930e3b2704543c99395c46288ea13d587c2419f0219ca4685539ae672a
[INFO] running `Command { std: "docker" "start" "-a" "ab7974930e3b2704543c99395c46288ea13d587c2419f0219ca4685539ae672a", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/let-88b511e0ae499030)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stderr]    Doc-tests let
[INFO] [stdout] test tests::it_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[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] running `Command { std: "docker" "inspect" "ab7974930e3b2704543c99395c46288ea13d587c2419f0219ca4685539ae672a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab7974930e3b2704543c99395c46288ea13d587c2419f0219ca4685539ae672a", kill_on_drop: false }`
[INFO] [stdout] ab7974930e3b2704543c99395c46288ea13d587c2419f0219ca4685539ae672a