[INFO] cloning repository https://github.com/PurpleMyst/micromanager
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/PurpleMyst/micromanager" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPurpleMyst%2Fmicromanager", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPurpleMyst%2Fmicromanager'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d8cfce7e1ebff503cc4b7d1e487a86af503d3407
[INFO] checking PurpleMyst/micromanager against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FPurpleMyst%2Fmicromanager" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/PurpleMyst/micromanager on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/PurpleMyst/micromanager
[INFO] finished tweaking git repo https://github.com/PurpleMyst/micromanager
[INFO] tweaked toml for git repo https://github.com/PurpleMyst/micromanager written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/PurpleMyst/micromanager 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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded quote v0.6.3
[INFO] [stderr]   Downloaded serde v1.0.66
[INFO] [stderr]   Downloaded proc-macro2 v0.4.6
[INFO] [stderr]   Downloaded colored v1.6.0
[INFO] [stderr]   Downloaded bytes v0.4.8
[INFO] [stderr]   Downloaded shared_child v0.3.2
[INFO] [stderr]   Downloaded libc v0.2.42
[INFO] [stderr]   Downloaded syn v0.14.2
[INFO] [stderr]   Downloaded serde_derive v1.0.66
[INFO] [stderr]   Downloaded strfmt v0.1.6
[INFO] [stderr]   Downloaded toml v0.4.6
[INFO] [stderr]   Downloaded os_pipe v0.6.1
[INFO] [stderr]   Downloaded duct v0.10.0
[INFO] [stderr]   Downloaded dirs v1.0.2
[INFO] [stderr]   Downloaded duct_sh v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2cec761d520493261bb6e56d8d5953b059593bdf95caaab37385e483078db29f
[INFO] running `Command { std: "docker" "start" "-a" "2cec761d520493261bb6e56d8d5953b059593bdf95caaab37385e483078db29f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2cec761d520493261bb6e56d8d5953b059593bdf95caaab37385e483078db29f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2cec761d520493261bb6e56d8d5953b059593bdf95caaab37385e483078db29f", kill_on_drop: false }`
[INFO] [stdout] 2cec761d520493261bb6e56d8d5953b059593bdf95caaab37385e483078db29f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=forbid" "-e" "RUSTDOCFLAGS=--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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3a8441b9e69a310c94170b3199a6d1c411046e437ffc3a08957f4c70776e50ba
[INFO] running `Command { std: "docker" "start" "-a" "3a8441b9e69a310c94170b3199a6d1c411046e437ffc3a08957f4c70776e50ba", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling nix v0.10.0
[INFO] [stderr]     Checking byteorder v1.2.3
[INFO] [stderr]     Checking winapi v0.2.8
[INFO] [stderr]     Checking cfg-if v0.1.3
[INFO] [stderr]     Checking bitflags v1.0.3
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde v1.0.66
[INFO] [stderr]     Checking lazycell v0.6.0
[INFO] [stderr]     Checking lazy_static v0.2.11
[INFO] [stderr]     Checking strfmt v0.1.6
[INFO] [stderr]    Compiling proc-macro2 v0.4.6
[INFO] [stderr]     Checking colored v1.6.0
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling quote v0.6.3
[INFO] [stderr]    Compiling syn v0.14.2
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking dirs v1.0.2
[INFO] [stderr]     Checking bytes v0.4.8
[INFO] [stderr]     Checking shared_child v0.3.2
[INFO] [stderr]    Compiling serde_derive v1.0.66
[INFO] [stderr]     Checking os_pipe v0.6.1
[INFO] [stderr]     Checking duct v0.10.0
[INFO] [stderr]     Checking duct_sh v0.1.0
[INFO] [stderr]     Checking toml v0.4.6
[INFO] [stderr]     Checking µmanager v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.27s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: syn v0.14.2
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "3a8441b9e69a310c94170b3199a6d1c411046e437ffc3a08957f4c70776e50ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3a8441b9e69a310c94170b3199a6d1c411046e437ffc3a08957f4c70776e50ba", kill_on_drop: false }`
[INFO] [stdout] 3a8441b9e69a310c94170b3199a6d1c411046e437ffc3a08957f4c70776e50ba