[INFO] fetching crate rvcr 0.2.1...
[INFO] checking rvcr-0.2.1 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate rvcr 0.2.1 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate rvcr 0.2.1
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rvcr 0.2.1
[INFO] tweaked toml for crates.io crate rvcr 0.2.1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rvcr 0.2.1 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] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 234 packages to latest compatible versions
[INFO] [stderr]       Adding base64 v0.21.7 (available: v0.22.1)
[INFO] [stderr]       Adding generic-array v0.14.7 (available: v0.14.9)
[INFO] [stderr]       Adding http v0.2.12 (available: v1.3.1)
[INFO] [stderr]       Adding reqwest v0.11.27 (available: v0.12.24)
[INFO] [stderr]       Adding reqwest-middleware v0.2.5 (available: v0.4.2)
[INFO] [stderr]       Adding zip v0.6.6 (available: v6.0.0)
[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] [stderr]     Blocking waiting for file lock on package cache
[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] 22574b6d0bbfc5b6bf2a849f91d4dc76d59f29da6f1c51eab6c75fcdf2b09846
[INFO] running `Command { std: "docker" "start" "-a" "22574b6d0bbfc5b6bf2a849f91d4dc76d59f29da6f1c51eab6c75fcdf2b09846", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "22574b6d0bbfc5b6bf2a849f91d4dc76d59f29da6f1c51eab6c75fcdf2b09846", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "22574b6d0bbfc5b6bf2a849f91d4dc76d59f29da6f1c51eab6c75fcdf2b09846", kill_on_drop: false }`
[INFO] [stdout] 22574b6d0bbfc5b6bf2a849f91d4dc76d59f29da6f1c51eab6c75fcdf2b09846
[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] 78d09ec40ece512fb698ced5e2e3e403ee9316a7862deddc412c2714c45bf6b1
[INFO] running `Command { std: "docker" "start" "-a" "78d09ec40ece512fb698ced5e2e3e403ee9316a7862deddc412c2714c45bf6b1", kill_on_drop: false }`
[INFO] [stderr]     Checking tokio v1.48.0
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking serde v1.0.228
[INFO] [stderr]     Checking openssl v0.10.75
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]     Checking task-local-extensions v0.1.4
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]    Compiling tracing-test-macro v0.2.5
[INFO] [stderr]     Checking idna v1.1.0
[INFO] [stderr]     Checking url v2.5.7
[INFO] [stderr]     Checking serde_urlencoded v0.7.1
[INFO] [stderr]     Checking chrono v0.4.42
[INFO] [stderr]     Checking matchers v0.2.0
[INFO] [stderr]     Checking vcr-cassette v2.0.1
[INFO] [stderr]     Checking tracing-subscriber v0.3.20
[INFO] [stderr]     Checking tracing-test v0.2.5
[INFO] [stderr]     Checking native-tls v0.2.14
[INFO] [stderr]     Checking tokio-util v0.7.17
[INFO] [stderr]     Checking tokio-native-tls v0.3.1
[INFO] [stderr]     Checking h2 v0.3.27
[INFO] [stderr]     Checking hyper v0.14.32
[INFO] [stderr]     Checking hyper-tls v0.5.0
[INFO] [stderr]     Checking reqwest v0.11.27
[INFO] [stderr]     Checking reqwest-middleware v0.2.5
[INFO] [stderr]     Checking rvcr v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error: this type will no longer be must used: Result<vcr_cassette::Body, void::Void>
[INFO] [stdout]    --> src/lib.rs:165:29
[INFO] [stdout]     |
[INFO] [stdout] 165 |             Ok(body_str) => vcr_cassette::Body::from_str(&body_str).unwrap(),
[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<vcr_cassette::Body, void::Void>
[INFO] [stdout]    --> src/lib.rs:193:25
[INFO] [stdout]     |
[INFO] [stdout] 193 |                 None => vcr_cassette::Body::from_str("").unwrap(),
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<vcr_cassette::Body, void::Void>
[INFO] [stdout]    --> src/lib.rs:195:21
[INFO] [stdout]     |
[INFO] [stdout] 195 |             None => vcr_cassette::Body::from_str("").unwrap(),
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<vcr_cassette::Body, void::Void>
[INFO] [stdout]    --> src/lib.rs:165:29
[INFO] [stdout]     |
[INFO] [stdout] 165 |             Ok(body_str) => vcr_cassette::Body::from_str(&body_str).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 `rvcr` (lib) due to 3 previous errors
[INFO] [stdout] error: this type will no longer be must used: Result<vcr_cassette::Body, void::Void>
[INFO] [stdout]    --> src/lib.rs:193:25
[INFO] [stdout]     |
[INFO] [stdout] 193 |                 None => vcr_cassette::Body::from_str("").unwrap(),
[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<vcr_cassette::Body, void::Void>
[INFO] [stdout]    --> src/lib.rs:195:21
[INFO] [stdout]     |
[INFO] [stdout] 195 |             None => vcr_cassette::Body::from_str("").unwrap(),
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rvcr` (lib test) due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "78d09ec40ece512fb698ced5e2e3e403ee9316a7862deddc412c2714c45bf6b1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78d09ec40ece512fb698ced5e2e3e403ee9316a7862deddc412c2714c45bf6b1", kill_on_drop: false }`
[INFO] [stdout] 78d09ec40ece512fb698ced5e2e3e403ee9316a7862deddc412c2714c45bf6b1
