[INFO] fetching crate spamprotection 0.1.0-2...
[INFO] checking spamprotection-0.1.0-2 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate spamprotection 0.1.0-2 into /workspace/builds/worker-2-tc2/source
[INFO] started tweaking crates.io crate spamprotection 0.1.0-2
[INFO] finished tweaking crates.io crate spamprotection 0.1.0-2
[INFO] tweaked toml for crates.io crate spamprotection 0.1.0-2 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate spamprotection 0.1.0-2 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 spamprotection 0.1.0-2 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] 19736285bb7e13bcaf97253c3dc1e73ec3894cc25e6ae5c568e25c0062fb4442
[INFO] running `Command { std: "docker" "start" "-a" "19736285bb7e13bcaf97253c3dc1e73ec3894cc25e6ae5c568e25c0062fb4442", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19736285bb7e13bcaf97253c3dc1e73ec3894cc25e6ae5c568e25c0062fb4442", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19736285bb7e13bcaf97253c3dc1e73ec3894cc25e6ae5c568e25c0062fb4442", kill_on_drop: false }`
[INFO] [stdout] 19736285bb7e13bcaf97253c3dc1e73ec3894cc25e6ae5c568e25c0062fb4442
[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] 4cbb978c84b46b52a01e0ba80314e35d7bbabcf02e2e4810e8e07aff194cd523
[INFO] running `Command { std: "docker" "start" "-a" "4cbb978c84b46b52a01e0ba80314e35d7bbabcf02e2e4810e8e07aff194cd523", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling cc v1.0.70
[INFO] [stderr]     Checking pin-project-lite v0.2.7
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling futures-core v0.3.17
[INFO] [stderr]     Checking bytes v1.1.0
[INFO] [stderr]    Compiling tokio v1.11.0
[INFO] [stderr]    Compiling futures-task v0.3.17
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling futures-util v0.3.17
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling openssl v0.10.36
[INFO] [stderr]     Checking tracing-core v0.1.19
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]    Compiling native-tls v0.2.8
[INFO] [stderr]     Checking futures-io v0.3.17
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling httparse v1.5.1
[INFO] [stderr]     Checking once_cell v1.8.0
[INFO] [stderr]     Checking futures-sink v0.3.17
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling openssl-sys v0.9.66
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking slab v0.4.4
[INFO] [stderr]    Compiling futures-channel v0.3.17
[INFO] [stderr]     Checking tinyvec v1.3.1
[INFO] [stderr]     Checking tracing v0.1.26
[INFO] [stderr]     Checking openssl-probe v0.1.4
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking socket2 v0.4.1
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking unicode-bidi v0.3.6
[INFO] [stderr]    Compiling encoding_rs v0.8.28
[INFO] [stderr]     Checking httpdate v1.0.1
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]    Compiling serde_json v1.0.67
[INFO] [stderr]     Checking http-body v0.4.3
[INFO] [stderr]     Checking mime v0.3.16
[INFO] [stderr]     Checking ipnet v2.3.1
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking tokio-util v0.6.8
[INFO] [stderr]     Checking tokio-native-tls v0.3.0
[INFO] [stderr]     Checking h2 v0.3.4
[INFO] [stderr]     Checking hyper v0.14.12
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking serde_urlencoded v0.7.0
[INFO] [stderr]     Checking reqwest v0.11.4
[INFO] [stderr]     Checking spamprotection v0.1.0-2 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]  --> examples/cli-arg.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 |     let arg: String = args[1].parse().expect("invalid account");
[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 `spamprotection` (example "cli-arg") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "4cbb978c84b46b52a01e0ba80314e35d7bbabcf02e2e4810e8e07aff194cd523", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4cbb978c84b46b52a01e0ba80314e35d7bbabcf02e2e4810e8e07aff194cd523", kill_on_drop: false }`
[INFO] [stdout] 4cbb978c84b46b52a01e0ba80314e35d7bbabcf02e2e4810e8e07aff194cd523