[INFO] fetching crate crf 0.1.2...
[INFO] checking crf-0.1.2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate crf 0.1.2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate crf 0.1.2
[INFO] finished tweaking crates.io crate crf 0.1.2
[INFO] tweaked toml for crates.io crate crf 0.1.2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate crf 0.1.2 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 crf 0.1.2 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] 3477ebe8a6fc98d4835d57943fdc78954f6f39091d5f09150af45d676cab8c80
[INFO] running `Command { std: "docker" "start" "-a" "3477ebe8a6fc98d4835d57943fdc78954f6f39091d5f09150af45d676cab8c80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3477ebe8a6fc98d4835d57943fdc78954f6f39091d5f09150af45d676cab8c80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3477ebe8a6fc98d4835d57943fdc78954f6f39091d5f09150af45d676cab8c80", kill_on_drop: false }`
[INFO] [stdout] 3477ebe8a6fc98d4835d57943fdc78954f6f39091d5f09150af45d676cab8c80
[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] 964579f47ddbdfa6556e2435e17e65c3f1b78dec308f7524cf489d06eb9db8fb
[INFO] running `Command { std: "docker" "start" "-a" "964579f47ddbdfa6556e2435e17e65c3f1b78dec308f7524cf489d06eb9db8fb", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]    Compiling unicode-segmentation v1.7.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling structopt-derive v0.4.13
[INFO] [stderr]     Checking structopt v0.3.20
[INFO] [stderr]     Checking crf v0.1.2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> src/main.rs:7:2
[INFO] [stdout]   |
[INFO] [stdout] 7 | /     /// Name of component
[INFO] [stdout] 8 | |     name: 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<String, Infallible>
[INFO] [stdout]   --> src/main.rs:9:2
[INFO] [stdout]    |
[INFO] [stdout]  9 | /     /// Type of component (-t c or -t f)
[INFO] [stdout] 10 | |     #[structopt(default_value = "c", short = "t", long = "type")]
[INFO] [stdout] 11 | |     comp_type: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> src/main.rs:7:2
[INFO] [stdout]   |
[INFO] [stdout] 7 | /     /// Name of component
[INFO] [stdout] 8 | |     name: 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<String, Infallible>
[INFO] [stdout]   --> src/main.rs:9:2
[INFO] [stdout]    |
[INFO] [stdout]  9 | /     /// Type of component (-t c or -t f)
[INFO] [stdout] 10 | |     #[structopt(default_value = "c", short = "t", long = "type")]
[INFO] [stdout] 11 | |     comp_type: String,
[INFO] [stdout]    | |_____________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `crf` (bin "crf" test) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `crf` (bin "crf") due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "964579f47ddbdfa6556e2435e17e65c3f1b78dec308f7524cf489d06eb9db8fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "964579f47ddbdfa6556e2435e17e65c3f1b78dec308f7524cf489d06eb9db8fb", kill_on_drop: false }`
[INFO] [stdout] 964579f47ddbdfa6556e2435e17e65c3f1b78dec308f7524cf489d06eb9db8fb