[INFO] fetching crate chksum3 0.5.0...
[INFO] checking chksum3-0.5.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate chksum3 0.5.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate chksum3 0.5.0
[INFO] finished tweaking crates.io crate chksum3 0.5.0
[INFO] tweaked toml for crates.io crate chksum3 0.5.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate chksum3 0.5.0 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 chksum3 0.5.0 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-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 688a459a192fb4ee900cf64f8b2dfb7922dc6fe0eac2c6a45b16703a450d392a
[INFO] running `Command { std: "docker" "start" "-a" "688a459a192fb4ee900cf64f8b2dfb7922dc6fe0eac2c6a45b16703a450d392a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "688a459a192fb4ee900cf64f8b2dfb7922dc6fe0eac2c6a45b16703a450d392a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "688a459a192fb4ee900cf64f8b2dfb7922dc6fe0eac2c6a45b16703a450d392a", kill_on_drop: false }`
[INFO] [stdout] 688a459a192fb4ee900cf64f8b2dfb7922dc6fe0eac2c6a45b16703a450d392a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] a895792d24a352fe78366e5a31ec37a0b06b9c2456e67673b29516c6d31f6728
[INFO] running `Command { std: "docker" "start" "-a" "a895792d24a352fe78366e5a31ec37a0b06b9c2456e67673b29516c6d31f6728", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.43
[INFO] [stderr]    Compiling unicode-ident v1.0.3
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling syn v1.0.99
[INFO] [stderr]    Compiling unicode-segmentation v1.9.0
[INFO] [stderr]    Compiling argh_shared v0.1.8
[INFO] [stderr]     Checking os_str_bytes v6.3.0
[INFO] [stderr]     Checking wild v2.1.0
[INFO] [stderr]     Checking clap_lex v0.2.4
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]    Compiling argh_derive v0.1.8
[INFO] [stderr]     Checking argh v0.1.8
[INFO] [stderr]     Checking chksum3 v0.5.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/cmd.rs:22:20
[INFO] [stdout]    |
[INFO] [stdout] 22 |         _ => { Err("value of argument 'bits' must be 8 or 32.".parse().unwrap()) }
[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 `chksum3` (bin "chksum3") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> src/cmd.rs:22:20
[INFO] [stdout]    |
[INFO] [stdout] 22 |         _ => { Err("value of argument 'bits' must be 8 or 32.".parse().unwrap()) }
[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 `chksum3` (bin "chksum3" test) due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "a895792d24a352fe78366e5a31ec37a0b06b9c2456e67673b29516c6d31f6728", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a895792d24a352fe78366e5a31ec37a0b06b9c2456e67673b29516c6d31f6728", kill_on_drop: false }`
[INFO] [stdout] a895792d24a352fe78366e5a31ec37a0b06b9c2456e67673b29516c6d31f6728
