[INFO] cloning repository https://github.com/jgosmann/btdt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jgosmann/btdt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjgosmann%2Fbtdt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjgosmann%2Fbtdt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0755ca8df4ff79c91f2642371fd7fa156040e6c0
[INFO] checking jgosmann/btdt against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjgosmann%2Fbtdt" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/jgosmann/btdt
[INFO] finished tweaking git repo https://github.com/jgosmann/btdt
[INFO] tweaked toml for git repo https://github.com/jgosmann/btdt written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/jgosmann/btdt 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 git repo https://github.com/jgosmann/btdt 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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 8b68648c621769eb36d1598b9e46457be0c9084f62c822fb71d91cd5dc9f75a3
[INFO] running `Command { std: "docker" "start" "-a" "8b68648c621769eb36d1598b9e46457be0c9084f62c822fb71d91cd5dc9f75a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b68648c621769eb36d1598b9e46457be0c9084f62c822fb71d91cd5dc9f75a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b68648c621769eb36d1598b9e46457be0c9084f62c822fb71d91cd5dc9f75a3", kill_on_drop: false }`
[INFO] [stdout] 8b68648c621769eb36d1598b9e46457be0c9084f62c822fb71d91cd5dc9f75a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] 570ff86d65741730591724816d64e670ec9df52e8c27038ad03a67864db03d54
[INFO] running `Command { std: "docker" "start" "-a" "570ff86d65741730591724816d64e670ec9df52e8c27038ad03a67864db03d54", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `UnverifiedBiscuit`
[INFO] [stdout]  --> btdt-cli/tests/test_cli.rs:3:29
[INFO] [stdout]   |
[INFO] [stdout] 3 | use biscuit_auth::{KeyPair, UnverifiedBiscuit};
[INFO] [stdout]   |                             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `path` is never used
[INFO] [stdout]   --> btdt-cli/tests/cache_fixture.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl CacheFixture {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 43 |     pub fn path(&self) -> &Path {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Cow<'_, str>, Infallible>
[INFO] [stdout]   --> btdt-server/src/main.rs:91:22
[INFO] [stdout]    |
[INFO] [stdout] 91 |           let status = result
[INFO] [stdout]    |  ______________________^
[INFO] [stdout] 92 | |             .as_ref()
[INFO] [stdout] 93 | |             .map(|res| Cow::Owned(res.status().as_u16().to_string()))
[INFO] [stdout] 94 | |             .or_else(|err| {
[INFO] [stdout] 95 | |                 Result::<_, Infallible>::Ok(Cow::Owned(err.status().as_u16().to_string()))
[INFO] [stdout] 96 | |             })
[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: std::result::Result<Cow<'_, str>, Infallible>
[INFO] [stdout]   --> btdt-server/src/main.rs:94:28
[INFO] [stdout]    |
[INFO] [stdout] 94 |               .or_else(|err| {
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 95 | |                 Result::<_, Infallible>::Ok(Cow::Owned(err.status().as_u16().to_string()))
[INFO] [stdout] 96 | |             })
[INFO] [stdout]    | |_____________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Cow<'_, str>, Infallible>
[INFO] [stdout]   --> btdt-server/src/main.rs:95:17
[INFO] [stdout]    |
[INFO] [stdout] 95 |                 Result::<_, Infallible>::Ok(Cow::Owned(err.status().as_u16().to_string()))
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `btdt-server` (bin "btdt-server" test) due to 3 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: method `copy_to` is never used
[INFO] [stdout]   --> btdt-cli/tests/cache_fixture.rs:47:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl CacheFixture {
[INFO] [stdout]    | ----------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 47 |     pub fn copy_to<P: AsRef<Path>>(&self, path: P) -> io::Result<()> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `copy_dir` is never used
[INFO] [stdout]   --> btdt-cli/tests/cache_fixture.rs:56:4
[INFO] [stdout]    |
[INFO] [stdout] 56 | fn copy_dir<P: AsRef<Path>>(src: P, dst: P) -> io::Result<()> {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Cow<'_, str>, Infallible>
[INFO] [stdout]   --> btdt-server/src/main.rs:91:22
[INFO] [stdout]    |
[INFO] [stdout] 91 |           let status = result
[INFO] [stdout]    |  ______________________^
[INFO] [stdout] 92 | |             .as_ref()
[INFO] [stdout] 93 | |             .map(|res| Cow::Owned(res.status().as_u16().to_string()))
[INFO] [stdout] 94 | |             .or_else(|err| {
[INFO] [stdout] 95 | |                 Result::<_, Infallible>::Ok(Cow::Owned(err.status().as_u16().to_string()))
[INFO] [stdout] 96 | |             })
[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: std::result::Result<Cow<'_, str>, Infallible>
[INFO] [stdout]   --> btdt-server/src/main.rs:94:28
[INFO] [stdout]    |
[INFO] [stdout] 94 |               .or_else(|err| {
[INFO] [stdout]    |  ____________________________^
[INFO] [stdout] 95 | |                 Result::<_, Infallible>::Ok(Cow::Owned(err.status().as_u16().to_string()))
[INFO] [stdout] 96 | |             })
[INFO] [stdout]    | |_____________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<Cow<'_, str>, Infallible>
[INFO] [stdout]   --> btdt-server/src/main.rs:95:17
[INFO] [stdout]    |
[INFO] [stdout] 95 |                 Result::<_, Infallible>::Ok(Cow::Owned(err.status().as_u16().to_string()))
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `btdt-server` (bin "btdt-server") due to 3 previous errors
[INFO] running `Command { std: "docker" "inspect" "570ff86d65741730591724816d64e670ec9df52e8c27038ad03a67864db03d54", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "570ff86d65741730591724816d64e670ec9df52e8c27038ad03a67864db03d54", kill_on_drop: false }`
[INFO] [stdout] 570ff86d65741730591724816d64e670ec9df52e8c27038ad03a67864db03d54