[INFO] cloning repository https://github.com/WaffleLapkin/c
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/WaffleLapkin/c" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWaffleLapkin%2Fc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWaffleLapkin%2Fc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ebb94f29202f8221e7cb86d4ff2ab1babd5a8c66
[INFO] checking WaffleLapkin/c against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FWaffleLapkin%2Fc" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/WaffleLapkin/c
[INFO] finished tweaking git repo https://github.com/WaffleLapkin/c
[INFO] tweaked toml for git repo https://github.com/WaffleLapkin/c written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/WaffleLapkin/c on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/WaffleLapkin/c 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ba6ea03bf8863501fe0757a7ea234be00936205fb90a52eae7177e82728567a9
[INFO] running `Command { std: "docker" "start" "-a" "ba6ea03bf8863501fe0757a7ea234be00936205fb90a52eae7177e82728567a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba6ea03bf8863501fe0757a7ea234be00936205fb90a52eae7177e82728567a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba6ea03bf8863501fe0757a7ea234be00936205fb90a52eae7177e82728567a9", kill_on_drop: false }`
[INFO] [stdout] ba6ea03bf8863501fe0757a7ea234be00936205fb90a52eae7177e82728567a9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d0fdbaa0591e5f2a916bcd7045a006a65d54afdb263a051686f1800a09d9ddb5
[INFO] running `Command { std: "docker" "start" "-a" "d0fdbaa0591e5f2a916bcd7045a006a65d54afdb263a051686f1800a09d9ddb5", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling libc v0.2.78
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling argh_shared v0.1.1
[INFO] [stderr]     Checking never v0.1.0
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling argh_derive v0.1.1
[INFO] [stderr]     Checking argh v0.1.3
[INFO] [stderr]     Checking c v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<View, Never>
[INFO] [stdout]   --> src/args.rs:32:53
[INFO] [stdout]    |
[INFO] [stdout] 32 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 33 | |         Ok(match s {
[INFO] [stdout] 34 | |             "time" | "t" => View::Time,
[INFO] [stdout] 35 | |             "date" | "d" => View::Date,
[INFO] [stdout] ...  |
[INFO] [stdout] 39 | |         })
[INFO] [stdout] 40 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `c` (bin "c") due to 2 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<View, Never>
[INFO] [stdout]   --> src/args.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | /         Ok(match s {
[INFO] [stdout] 34 | |             "time" | "t" => View::Time,
[INFO] [stdout] 35 | |             "date" | "d" => View::Date,
[INFO] [stdout] 36 | |             "datetime" | "dt" => View::DateTime,
[INFO] [stdout] 37 | |             "day" => View::Day,
[INFO] [stdout] 38 | |             custom => View::Custom(custom.to_owned()),
[INFO] [stdout] 39 | |         })
[INFO] [stdout]    | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<View, Never>
[INFO] [stdout]   --> src/args.rs:32:53
[INFO] [stdout]    |
[INFO] [stdout] 32 |       fn from_str(s: &str) -> Result<Self, Self::Err> {
[INFO] [stdout]    |  _____________________________________________________^
[INFO] [stdout] 33 | |         Ok(match s {
[INFO] [stdout] 34 | |             "time" | "t" => View::Time,
[INFO] [stdout] 35 | |             "date" | "d" => View::Date,
[INFO] [stdout] ...  |
[INFO] [stdout] 39 | |         })
[INFO] [stdout] 40 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<View, Never>
[INFO] [stdout]   --> src/args.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | /         Ok(match s {
[INFO] [stdout] 34 | |             "time" | "t" => View::Time,
[INFO] [stdout] 35 | |             "date" | "d" => View::Date,
[INFO] [stdout] 36 | |             "datetime" | "dt" => View::DateTime,
[INFO] [stdout] 37 | |             "day" => View::Day,
[INFO] [stdout] 38 | |             custom => View::Custom(custom.to_owned()),
[INFO] [stdout] 39 | |         })
[INFO] [stdout]    | |__________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `c` (bin "c" test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "d0fdbaa0591e5f2a916bcd7045a006a65d54afdb263a051686f1800a09d9ddb5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d0fdbaa0591e5f2a916bcd7045a006a65d54afdb263a051686f1800a09d9ddb5", kill_on_drop: false }`
[INFO] [stdout] d0fdbaa0591e5f2a916bcd7045a006a65d54afdb263a051686f1800a09d9ddb5
