[INFO] fetching crate fenic 0.1.0...
[INFO] checking fenic-0.1.0 against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] extracting crate fenic 0.1.0 into /workspace/builds/worker-1-tc2/source
[INFO] started tweaking crates.io crate fenic 0.1.0
[INFO] finished tweaking crates.io crate fenic 0.1.0
[INFO] tweaked toml for crates.io crate fenic 0.1.0 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate fenic 0.1.0 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] 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]     Updating crates.io index
[INFO] [stderr]      Locking 54 packages to latest compatible versions
[INFO] [stderr]       Adding generator v0.7.5 (available: v0.8.7)
[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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] adba37dbd7d15ae3ab1575228913fdb37c8eaec19301ee355168c0d6be22d523
[INFO] running `Command { std: "docker" "start" "-a" "adba37dbd7d15ae3ab1575228913fdb37c8eaec19301ee355168c0d6be22d523", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "adba37dbd7d15ae3ab1575228913fdb37c8eaec19301ee355168c0d6be22d523", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adba37dbd7d15ae3ab1575228913fdb37c8eaec19301ee355168c0d6be22d523", kill_on_drop: false }`
[INFO] [stdout] adba37dbd7d15ae3ab1575228913fdb37c8eaec19301ee355168c0d6be22d523
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 3c8c8a95ee9f0ed9641c7e74c90fce3b3397923f23c776e3294dc1502dd1d177
[INFO] running `Command { std: "docker" "start" "-a" "3c8c8a95ee9f0ed9641c7e74c90fce3b3397923f23c776e3294dc1502dd1d177", kill_on_drop: false }`
[INFO] [stderr]     Checking regex-automata v0.4.13
[INFO] [stderr]    Compiling generator v0.7.5
[INFO] [stderr]     Checking tracing v0.1.41
[INFO] [stderr]     Checking futures-util v0.3.31
[INFO] [stderr]     Checking matchers v0.2.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.20
[INFO] [stderr]     Checking fenic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/rt/thread.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |     Blocked(Location),
[INFO] [stdout]    |     ------- ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `State` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 79 -     Blocked(Location),
[INFO] [stdout] 79 +     Blocked(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/rt/object.rs:202:84
[INFO] [stdout]     |
[INFO] [stdout] 202 |     pub(super) fn iter_mut<'a, O>(&'a mut self) -> impl DoubleEndedIterator<Item = &mut O>
[INFO] [stdout]     |                                    -- the lifetime is named here                   ^^^^^^ the same lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 202 |     pub(super) fn iter_mut<'a, O>(&'a mut self) -> impl DoubleEndedIterator<Item = &'a mut O>
[INFO] [stdout]     |                                                                                     ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/model.rs:113:22
[INFO] [stdout]     |
[INFO] [stdout] 113 |             .map(|v| v.parse().expect("invalid value for `LOOM_CHECKPOINT_FILE`"))
[INFO] [stdout]     |                      ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/thread.rs:283:51
[INFO] [stdout]     |
[INFO] [stdout] 283 |     unsafe fn get(&'static self) -> Option<Result<&T, AccessError>> {
[INFO] [stdout]     |                    -------                        ^^ the same lifetime is elided here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'static`
[INFO] [stdout]     |
[INFO] [stdout] 283 |     unsafe fn get(&'static self) -> Option<Result<&'static T, AccessError>> {
[INFO] [stdout]     |                                                    +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fenic` (lib) due to 1 previous error; 3 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/rt/thread.rs:79:13
[INFO] [stdout]    |
[INFO] [stdout] 79 |     Blocked(Location),
[INFO] [stdout]    |     ------- ^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `State` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 79 -     Blocked(Location),
[INFO] [stdout] 79 +     Blocked(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/rt/object.rs:202:84
[INFO] [stdout]     |
[INFO] [stdout] 202 |     pub(super) fn iter_mut<'a, O>(&'a mut self) -> impl DoubleEndedIterator<Item = &mut O>
[INFO] [stdout]     |                                    -- the lifetime is named here                   ^^^^^^ the same lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]     |
[INFO] [stdout] 202 |     pub(super) fn iter_mut<'a, O>(&'a mut self) -> impl DoubleEndedIterator<Item = &'a mut O>
[INFO] [stdout]     |                                                                                     ++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]    --> src/model.rs:113:22
[INFO] [stdout]     |
[INFO] [stdout] 113 |             .map(|v| v.parse().expect("invalid value for `LOOM_CHECKPOINT_FILE`"))
[INFO] [stdout]     |                      ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: eliding a lifetime that's named elsewhere is confusing
[INFO] [stdout]    --> src/thread.rs:283:51
[INFO] [stdout]     |
[INFO] [stdout] 283 |     unsafe fn get(&'static self) -> Option<Result<&T, AccessError>> {
[INFO] [stdout]     |                    -------                        ^^ the same lifetime is elided here
[INFO] [stdout]     |                    |
[INFO] [stdout]     |                    the lifetime is named here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'static`
[INFO] [stdout]     |
[INFO] [stdout] 283 |     unsafe fn get(&'static self) -> Option<Result<&'static T, AccessError>> {
[INFO] [stdout]     |                                                    +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `fenic` (lib test) due to 1 previous error; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "3c8c8a95ee9f0ed9641c7e74c90fce3b3397923f23c776e3294dc1502dd1d177", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c8c8a95ee9f0ed9641c7e74c90fce3b3397923f23c776e3294dc1502dd1d177", kill_on_drop: false }`
[INFO] [stdout] 3c8c8a95ee9f0ed9641c7e74c90fce3b3397923f23c776e3294dc1502dd1d177
