[INFO] fetching crate fstrings-proc-macro 0.2.4-rc2...
[INFO] testing fstrings-proc-macro-0.2.4-rc2 against try#1b74e096b9bfb06f84a3007193dcd2f059cbdf6a for pr-96025
[INFO] extracting crate fstrings-proc-macro 0.2.4-rc2 into /workspace/builds/worker-88/source
[INFO] validating manifest of crates.io crate fstrings-proc-macro 0.2.4-rc2 on toolchain 1b74e096b9bfb06f84a3007193dcd2f059cbdf6a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1b74e096b9bfb06f84a3007193dcd2f059cbdf6a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate fstrings-proc-macro 0.2.4-rc2
[INFO] finished tweaking crates.io crate fstrings-proc-macro 0.2.4-rc2
[INFO] tweaked toml for crates.io crate fstrings-proc-macro 0.2.4-rc2 written to /workspace/builds/worker-88/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1b74e096b9bfb06f84a3007193dcd2f059cbdf6a" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1b74e096b9bfb06f84a3007193dcd2f059cbdf6a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1b74e096b9bfb06f84a3007193dcd2f059cbdf6a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1997285a55b00b8bb2fa2add08ba3ef4e7779eccc57a930f9c4d6d4da3140098
[INFO] running `Command { std: "docker" "start" "-a" "1997285a55b00b8bb2fa2add08ba3ef4e7779eccc57a930f9c4d6d4da3140098", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1997285a55b00b8bb2fa2add08ba3ef4e7779eccc57a930f9c4d6d4da3140098", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1997285a55b00b8bb2fa2add08ba3ef4e7779eccc57a930f9c4d6d4da3140098", kill_on_drop: false }`
[INFO] [stdout] 1997285a55b00b8bb2fa2add08ba3ef4e7779eccc57a930f9c4d6d4da3140098
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1b74e096b9bfb06f84a3007193dcd2f059cbdf6a" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 45c1d331a46af1d6a8db467927cab4d2095f6da6c3c902c12dd24afe6aa5272e
[INFO] running `Command { std: "docker" "start" "-a" "45c1d331a46af1d6a8db467927cab4d2095f6da6c3c902c12dd24afe6aa5272e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling fstrings-proc-macro v0.2.4-rc2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `ident`
[INFO] [stdout]    --> mod.rs:179:38
[INFO] [stdout]     |
[INFO] [stdout] 179 |                     | Segment::Self_(ident) => {
[INFO] [stdout]     |                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_ident`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> mod.rs:78:18
[INFO] [stdout]    |
[INFO] [stdout] 78 |     debug_input!(&input);
[INFO] [stdout]    |                  ^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 78 |     debug_input!(let _ = &input);
[INFO] [stdout]    |                  +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.96s
[INFO] running `Command { std: "docker" "inspect" "45c1d331a46af1d6a8db467927cab4d2095f6da6c3c902c12dd24afe6aa5272e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "45c1d331a46af1d6a8db467927cab4d2095f6da6c3c902c12dd24afe6aa5272e", kill_on_drop: false }`
[INFO] [stdout] 45c1d331a46af1d6a8db467927cab4d2095f6da6c3c902c12dd24afe6aa5272e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1b74e096b9bfb06f84a3007193dcd2f059cbdf6a" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] be7ae232e722d442a730e3f2c4278f5dc4000e62fce159cebd443cf2fd61b2a4
[INFO] running `Command { std: "docker" "start" "-a" "be7ae232e722d442a730e3f2c4278f5dc4000e62fce159cebd443cf2fd61b2a4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling fstrings-proc-macro v0.2.4-rc2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `ident`
[INFO] [stdout]    --> mod.rs:179:38
[INFO] [stdout]     |
[INFO] [stdout] 179 |                     | Segment::Self_(ident) => {
[INFO] [stdout]     |                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_ident`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> mod.rs:78:18
[INFO] [stdout]    |
[INFO] [stdout] 78 |     debug_input!(&input);
[INFO] [stdout]    |                  ^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 78 |     debug_input!(let _ = &input);
[INFO] [stdout]    |                  +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ident`
[INFO] [stdout]    --> mod.rs:179:38
[INFO] [stdout]     |
[INFO] [stdout] 179 |                     | Segment::Self_(ident) => {
[INFO] [stdout]     |                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_ident`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> mod.rs:78:18
[INFO] [stdout]    |
[INFO] [stdout] 78 |     debug_input!(&input);
[INFO] [stdout]    |                  ^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 78 |     debug_input!(let _ = &input);
[INFO] [stdout]    |                  +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.64s
[INFO] [stderr]   Executable unittests mod.rs (/opt/rustwide/target/debug/deps/fstrings_proc_macro-81f4677fec6ddc35)
[INFO] running `Command { std: "docker" "inspect" "be7ae232e722d442a730e3f2c4278f5dc4000e62fce159cebd443cf2fd61b2a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be7ae232e722d442a730e3f2c4278f5dc4000e62fce159cebd443cf2fd61b2a4", kill_on_drop: false }`
[INFO] [stdout] be7ae232e722d442a730e3f2c4278f5dc4000e62fce159cebd443cf2fd61b2a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1b74e096b9bfb06f84a3007193dcd2f059cbdf6a" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 84ea2abcff9a215ba684e391051219248a591a7d06abc87ca0aa2edb72fc4910
[INFO] running `Command { std: "docker" "start" "-a" "84ea2abcff9a215ba684e391051219248a591a7d06abc87ca0aa2edb72fc4910", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: unused variable: `ident`
[INFO] [stderr]    --> mod.rs:179:38
[INFO] [stderr]     |
[INFO] [stderr] 179 |                     | Segment::Self_(ident) => {
[INFO] [stderr]     |                                      ^^^^^ help: if this is intentional, prefix it with an underscore: `_ident`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused borrow that must be used
[INFO] [stderr]   --> mod.rs:78:18
[INFO] [stderr]    |
[INFO] [stderr] 78 |     debug_input!(&input);
[INFO] [stderr]    |                  ^^^^^^ the borrow produces a value
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 78 |     debug_input!(let _ = &input);
[INFO] [stderr]    |                  +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `fstrings-proc-macro` (lib) generated 2 warnings
[INFO] [stderr] warning: `fstrings-proc-macro` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running unittests mod.rs (/opt/rustwide/target/debug/deps/fstrings_proc_macro-81f4677fec6ddc35)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests fstrings-proc-macro
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "84ea2abcff9a215ba684e391051219248a591a7d06abc87ca0aa2edb72fc4910", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84ea2abcff9a215ba684e391051219248a591a7d06abc87ca0aa2edb72fc4910", kill_on_drop: false }`
[INFO] [stdout] 84ea2abcff9a215ba684e391051219248a591a7d06abc87ca0aa2edb72fc4910