[INFO] cloning repository https://github.com/dignifiedquire/rmail
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dignifiedquire/rmail" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdignifiedquire%2Frmail", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdignifiedquire%2Frmail'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0c8c269a8916f0c9fa3584508ac65b1d9075a4d3
[INFO] checking dignifiedquire/rmail against try#39e1293fce4b650061e85dda88aa428f726a8444 for pr-88041
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdignifiedquire%2Frmail" "/workspace/builds/worker-87/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-87/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/dignifiedquire/rmail on toolchain 39e1293fce4b650061e85dda88aa428f726a8444
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dignifiedquire/rmail
[INFO] finished tweaking git repo https://github.com/dignifiedquire/rmail
[INFO] tweaked toml for git repo https://github.com/dignifiedquire/rmail written to /workspace/builds/worker-87/source/Cargo.toml
[INFO] crate git repo https://github.com/dignifiedquire/rmail already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 96a2409352c655d2d4e4c7836a432f8aee0277ea3e9496ebe5d884c99b26baf6
[INFO] running `Command { std: "docker" "start" "-a" "96a2409352c655d2d4e4c7836a432f8aee0277ea3e9496ebe5d884c99b26baf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "96a2409352c655d2d4e4c7836a432f8aee0277ea3e9496ebe5d884c99b26baf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96a2409352c655d2d4e4c7836a432f8aee0277ea3e9496ebe5d884c99b26baf6", kill_on_drop: false }`
[INFO] [stdout] 96a2409352c655d2d4e4c7836a432f8aee0277ea3e9496ebe5d884c99b26baf6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-87/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+39e1293fce4b650061e85dda88aa428f726a8444" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b8c55efd990050cd19a3f5ee5c4daab9b09e199d7fba1daf5b4c230bcdf9bca5
[INFO] running `Command { std: "docker" "start" "-a" "b8c55efd990050cd19a3f5ee5c4daab9b09e199d7fba1daf5b4c230bcdf9bca5", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling syn v0.15.31
[INFO] [stderr]    Compiling libc v0.2.51
[INFO] [stderr]    Compiling serde v1.0.90
[INFO] [stderr]    Compiling cc v1.0.35
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking boxfnonce v0.1.1
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking urlencoding v1.0.0
[INFO] [stderr]     Checking rand_jitter v0.1.3
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]    Compiling webview-sys v0.1.1
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]     Checking web-view v0.4.0
[INFO] [stderr]    Compiling serde_derive v1.0.90
[INFO] [stderr]     Checking serde_json v1.0.39
[INFO] [stderr]     Checking uuid v0.7.4
[INFO] [stderr]     Checking rmail v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.92s
[INFO] running `Command { std: "docker" "inspect" "b8c55efd990050cd19a3f5ee5c4daab9b09e199d7fba1daf5b4c230bcdf9bca5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8c55efd990050cd19a3f5ee5c4daab9b09e199d7fba1daf5b4c230bcdf9bca5", kill_on_drop: false }`
[INFO] [stdout] b8c55efd990050cd19a3f5ee5c4daab9b09e199d7fba1daf5b4c230bcdf9bca5