[INFO] cloning repository https://github.com/kobbyowen/rust-rates
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kobbyowen/rust-rates" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkobbyowen%2Frust-rates", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkobbyowen%2Frust-rates'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b39b528e80d4082dcce0220b7f86d1ba489c6eba
[INFO] checking kobbyowen/rust-rates 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%2Fkobbyowen%2Frust-rates" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/kobbyowen/rust-rates
[INFO] finished tweaking git repo https://github.com/kobbyowen/rust-rates
[INFO] tweaked toml for git repo https://github.com/kobbyowen/rust-rates written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/kobbyowen/rust-rates 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/kobbyowen/rust-rates 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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] bfa429ff43d05afe0c4e465b9143d13e3d0006624123780247a6fd009f3c01e3
[INFO] running `Command { std: "docker" "start" "-a" "bfa429ff43d05afe0c4e465b9143d13e3d0006624123780247a6fd009f3c01e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bfa429ff43d05afe0c4e465b9143d13e3d0006624123780247a6fd009f3c01e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfa429ff43d05afe0c4e465b9143d13e3d0006624123780247a6fd009f3c01e3", kill_on_drop: false }`
[INFO] [stdout] bfa429ff43d05afe0c4e465b9143d13e3d0006624123780247a6fd009f3c01e3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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] 1bbec6bd144f181f06ac808af02cafb850f0a4e793188784453b45a3c070fa14
[INFO] running `Command { std: "docker" "start" "-a" "1bbec6bd144f181f06ac808af02cafb850f0a4e793188784453b45a3c070fa14", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.86
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking once_cell v1.7.0
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]     Checking pin-project-lite v0.2.4
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling tokio v1.2.0
[INFO] [stderr]     Checking futures-core v0.3.12
[INFO] [stderr]    Compiling indexmap v1.6.1
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking futures-io v0.3.13
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking futures-sink v0.3.12
[INFO] [stderr]    Compiling httparse v1.3.5
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling serde_json v1.0.62
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking futures-task v0.3.12
[INFO] [stderr]     Checking futures-channel v0.3.12
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]     Checking tracing v0.1.24
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]     Checking http v0.2.3
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]     Checking quick-xml v0.17.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking idna v0.2.2
[INFO] [stderr]     Checking ipnet v2.3.0
[INFO] [stderr]     Checking mio v0.7.8
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking socket2 v0.3.19
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]    Compiling ring v0.16.20
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking minidom v0.12.0
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking directories v3.0.1
[INFO] [stderr]     Checking url v2.2.1
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking http-body v0.4.0
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]     Checking tokio-util v0.6.3
[INFO] [stderr]    Compiling pin-project-internal v1.0.5
[INFO] [stderr]    Compiling futures-macro v0.3.12
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking futures-util v0.3.12
[INFO] [stderr]     Checking pin-project v1.0.5
[INFO] [stderr]     Checking tracing-futures v0.2.5
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stderr]     Checking webpki v0.21.4
[INFO] [stderr]     Checking sct v0.6.0
[INFO] [stderr]     Checking rustls v0.19.0
[INFO] [stderr]     Checking webpki-roots v0.21.0
[INFO] [stderr]     Checking h2 v0.3.0
[INFO] [stderr]     Checking quickxml_to_serde v0.4.1
[INFO] [stderr]     Checking tokio-rustls v0.22.0
[INFO] [stderr]     Checking hyper v0.14.4
[INFO] [stderr]     Checking hyper-rustls v0.22.1
[INFO] [stderr]     Checking reqwest v0.11.1
[INFO] [stderr]     Checking rates v0.7.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:174:5
[INFO] [stdout]     |
[INFO] [stdout] 174 | /     /// (Optional) Amount
[INFO] [stdout] 175 | |     arg1: Option<String>,
[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<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:177:5
[INFO] [stdout]     |
[INFO] [stdout] 177 | /     /// Currency to convert from
[INFO] [stdout] 178 | |     arg2: Option<String>,
[INFO] [stdout]     | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:180:5
[INFO] [stdout]     |
[INFO] [stdout] 180 | /     /// (Optional) "to"
[INFO] [stdout] 181 | |     arg3: Option<String>,
[INFO] [stdout]     | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:183:5
[INFO] [stdout]     |
[INFO] [stdout] 183 | /     /// Currency to convert to. Defaults to EUR if not provided
[INFO] [stdout] 184 | |     arg4: Option<String>,
[INFO] [stdout]     | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:174:5
[INFO] [stdout]     |
[INFO] [stdout] 174 | /     /// (Optional) Amount
[INFO] [stdout] 175 | |     arg1: Option<String>,
[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<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:177:5
[INFO] [stdout]     |
[INFO] [stdout] 177 | /     /// Currency to convert from
[INFO] [stdout] 178 | |     arg2: Option<String>,
[INFO] [stdout]     | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:180:5
[INFO] [stdout]     |
[INFO] [stdout] 180 | /     /// (Optional) "to"
[INFO] [stdout] 181 | |     arg3: Option<String>,
[INFO] [stdout]     | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/main.rs:183:5
[INFO] [stdout]     |
[INFO] [stdout] 183 | /     /// Currency to convert to. Defaults to EUR if not provided
[INFO] [stdout] 184 | |     arg4: Option<String>,
[INFO] [stdout]     | |________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rates` (bin "rates") due to 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `rates` (bin "rates" test) due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "1bbec6bd144f181f06ac808af02cafb850f0a4e793188784453b45a3c070fa14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1bbec6bd144f181f06ac808af02cafb850f0a4e793188784453b45a3c070fa14", kill_on_drop: false }`
[INFO] [stdout] 1bbec6bd144f181f06ac808af02cafb850f0a4e793188784453b45a3c070fa14
