[INFO] cloning repository https://github.com/archer884/meeting
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/archer884/meeting" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcher884%2Fmeeting", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcher884%2Fmeeting'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4c1021539bf0db4dac4ba7a529e4b75c239b45a0
[INFO] checking archer884/meeting against try#55b3f428b4fac6790b1e8492e0b91ff2d80aec7c for pr-77035
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcher884%2Fmeeting" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/archer884/meeting on toolchain 55b3f428b4fac6790b1e8492e0b91ff2d80aec7c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/archer884/meeting
[INFO] finished tweaking git repo https://github.com/archer884/meeting
[INFO] tweaked toml for git repo https://github.com/archer884/meeting written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/archer884/meeting already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded directories v1.0.2
[INFO] [stderr]   Downloaded structopt-derive v0.2.14
[INFO] [stderr]   Downloaded serde_derive v1.0.82
[INFO] [stderr]   Downloaded structopt v0.2.14
[INFO] [stderr]   Downloaded syn v0.15.23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b392ff1bfe358097dcbe356311f2845a1273443c3c8d032d861c848bd8da9dee
[INFO] running `Command { std: "docker" "start" "-a" "b392ff1bfe358097dcbe356311f2845a1273443c3c8d032d861c848bd8da9dee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b392ff1bfe358097dcbe356311f2845a1273443c3c8d032d861c848bd8da9dee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b392ff1bfe358097dcbe356311f2845a1273443c3c8d032d861c848bd8da9dee", kill_on_drop: false }`
[INFO] [stdout] b392ff1bfe358097dcbe356311f2845a1273443c3c8d032d861c848bd8da9dee
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+55b3f428b4fac6790b1e8492e0b91ff2d80aec7c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6bd080292293276c82f19e26ca2b40286be4dc4ef150f27f187d1bef84b41f4e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "6bd080292293276c82f19e26ca2b40286be4dc4ef150f27f187d1bef84b41f4e", kill_on_drop: false }`
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking time v0.1.41
[INFO] [stderr]     Checking directories v1.0.2
[INFO] [stderr]     Checking clap v2.32.0
[INFO] [stderr]    Compiling serde_derive v1.0.82
[INFO] [stderr]    Compiling structopt-derive v0.2.14
[INFO] [stderr]     Checking structopt v0.2.14
[INFO] [stderr]     Checking serde v1.0.82
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking serde_json v1.0.33
[INFO] [stderr]     Checking meeting v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:12:43
[INFO] [stdout]    |
[INFO] [stdout] 12 | type AppResult<T> = result::Result<T, Box<error::Error>>;
[INFO] [stdout]    |                                           ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:12:43
[INFO] [stdout]    |
[INFO] [stdout] 12 | type AppResult<T> = result::Result<T, Box<error::Error>>;
[INFO] [stdout]    |                                           ^^^^^^^^^^^^ help: use `dyn`: `dyn error::Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.09s
[INFO] running `Command { std: "docker" "inspect" "6bd080292293276c82f19e26ca2b40286be4dc4ef150f27f187d1bef84b41f4e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6bd080292293276c82f19e26ca2b40286be4dc4ef150f27f187d1bef84b41f4e", kill_on_drop: false }`
[INFO] [stdout] 6bd080292293276c82f19e26ca2b40286be4dc4ef150f27f187d1bef84b41f4e