[INFO] fetching crate kalam 0.1.1...
[INFO] checking kalam-0.1.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate kalam 0.1.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate kalam 0.1.1
[INFO] finished tweaking crates.io crate kalam 0.1.1
[INFO] tweaked toml for crates.io crate kalam 0.1.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate kalam 0.1.1 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 crates.io crate kalam 0.1.1 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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] 6daec536eb76f40f0ab959febed3b1cc022ec8ce6e38b7daad0a2c97d5968b99
[INFO] running `Command { std: "docker" "start" "-a" "6daec536eb76f40f0ab959febed3b1cc022ec8ce6e38b7daad0a2c97d5968b99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6daec536eb76f40f0ab959febed3b1cc022ec8ce6e38b7daad0a2c97d5968b99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6daec536eb76f40f0ab959febed3b1cc022ec8ce6e38b7daad0a2c97d5968b99", kill_on_drop: false }`
[INFO] [stdout] 6daec536eb76f40f0ab959febed3b1cc022ec8ce6e38b7daad0a2c97d5968b99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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] ffad58d6b3d33fd04098bce9cd7e05dd4d41f71bd1859746d927f28109f327a5
[INFO] running `Command { std: "docker" "start" "-a" "ffad58d6b3d33fd04098bce9cd7e05dd4d41f71bd1859746d927f28109f327a5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.69
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling serde v1.0.189
[INFO] [stderr]     Checking unicode-width v0.1.11
[INFO] [stderr]    Compiling unicode-segmentation v1.10.1
[INFO] [stderr]    Compiling anyhow v1.0.75
[INFO] [stderr]    Compiling serde_json v1.0.107
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]     Checking home v0.5.5
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]    Compiling syn v2.0.38
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking clap v2.34.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking chrono v0.4.31
[INFO] [stderr]    Compiling serde_derive v1.0.189
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking uuid v1.4.1
[INFO] [stderr]     Checking kalam v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]  --> src/start.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | /     #[structopt(short, long)]
[INFO] [stdout] 8 | |     pub title: String,
[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 `kalam` (bin "kalam") due to 5 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/start.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     #[structopt(short, long)]
[INFO] [stdout] 11 | |     pub project: String,
[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<std::string::String, Infallible>
[INFO] [stdout]  --> src/stop.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | /     #[structopt(short, long)]
[INFO] [stdout] 8 | |     pub id: 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/report.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | /     #[structopt(short, long, help = "The range to report on [today, week, all]")]
[INFO] [stdout] 10 | |     pub range: 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/report.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     #[structopt(short, long, help = "The project to report on")]
[INFO] [stdout] 13 | |     pub project: 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/start.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | /     #[structopt(short, long)]
[INFO] [stdout] 8 | |     pub title: 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/start.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | /     #[structopt(short, long)]
[INFO] [stdout] 11 | |     pub project: 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/stop.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | /     #[structopt(short, long)]
[INFO] [stdout] 8 | |     pub id: 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/report.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | /     #[structopt(short, long, help = "The range to report on [today, week, all]")]
[INFO] [stdout] 10 | |     pub range: 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/report.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | /     #[structopt(short, long, help = "The project to report on")]
[INFO] [stdout] 13 | |     pub project: Option<String>,
[INFO] [stdout]    | |_______________________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `kalam` (bin "kalam" test) due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "ffad58d6b3d33fd04098bce9cd7e05dd4d41f71bd1859746d927f28109f327a5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ffad58d6b3d33fd04098bce9cd7e05dd4d41f71bd1859746d927f28109f327a5", kill_on_drop: false }`
[INFO] [stdout] ffad58d6b3d33fd04098bce9cd7e05dd4d41f71bd1859746d927f28109f327a5
