[INFO] fetching crate micro-timer 0.4.0...
[INFO] testing micro-timer-0.4.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate micro-timer 0.4.0 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate micro-timer 0.4.0
[INFO] finished tweaking crates.io crate micro-timer 0.4.0
[INFO] tweaked toml for crates.io crate micro-timer 0.4.0 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate micro-timer 0.4.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "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" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 7 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded micro-timer-macros v0.4.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5aed48000bc046d49e5ea10c7b2344cfd51e711dcaf7fec90707767eae2ef283
[INFO] running `Command { std: "docker" "start" "-a" "5aed48000bc046d49e5ea10c7b2344cfd51e711dcaf7fec90707767eae2ef283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5aed48000bc046d49e5ea10c7b2344cfd51e711dcaf7fec90707767eae2ef283", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5aed48000bc046d49e5ea10c7b2344cfd51e711dcaf7fec90707767eae2ef283", kill_on_drop: false }`
[INFO] [stdout] 5aed48000bc046d49e5ea10c7b2344cfd51e711dcaf7fec90707767eae2ef283
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4bf44780e6aa39d7140d52997e70f2484506ed70866a43c075bcda40d5fc8fb6
[INFO] running `Command { std: "docker" "start" "-a" "4bf44780e6aa39d7140d52997e70f2484506ed70866a43c075bcda40d5fc8fb6", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling micro-timer-macros v0.4.0
[INFO] [stderr]    Compiling micro-timer v0.4.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.73s
[INFO] running `Command { std: "docker" "inspect" "4bf44780e6aa39d7140d52997e70f2484506ed70866a43c075bcda40d5fc8fb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4bf44780e6aa39d7140d52997e70f2484506ed70866a43c075bcda40d5fc8fb6", kill_on_drop: false }`
[INFO] [stdout] 4bf44780e6aa39d7140d52997e70f2484506ed70866a43c075bcda40d5fc8fb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1d3e347ab5710f830778113def1b564b5ff133bf765fc1b7a19e34a0911d9f57
[INFO] running `Command { std: "docker" "start" "-a" "1d3e347ab5710f830778113def1b564b5ff133bf765fc1b7a19e34a0911d9f57", kill_on_drop: false }`
[INFO] [stderr]    Compiling micro-timer v0.4.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> tests/behavior.rs:13:6
[INFO] [stdout]    |
[INFO] [stdout] 13 |     };
[INFO] [stdout]    |      ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> tests/compilation.rs:57:21
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn thing(value: Thing) -> &mut String {
[INFO] [stdout]    |                     ^^^^^     ----------- the same lifetime is elided here
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     the lifetime is hidden 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: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 57 |     fn thing(value: Thing<'_>) -> &mut String {
[INFO] [stdout]    |                          ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused comparison that must be used
[INFO] [stdout]   --> tests/compilation.rs:73:18
[INFO] [stdout]    |
[INFO] [stdout] 73 |         unsafe { *value != 0u8 };
[INFO] [stdout]    |                  ^^^^^^^^^^^^^ the comparison 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] 73 |         unsafe { let _ = *value != 0u8; };
[INFO] [stdout]    |                  +++++++              +
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "1d3e347ab5710f830778113def1b564b5ff133bf765fc1b7a19e34a0911d9f57", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d3e347ab5710f830778113def1b564b5ff133bf765fc1b7a19e34a0911d9f57", kill_on_drop: false }`
[INFO] [stdout] 1d3e347ab5710f830778113def1b564b5ff133bf765fc1b7a19e34a0911d9f57
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5429df5f402b4af689a57b2c8a9fb2faff42bddaeb3e184dd87422d1551d04a6
[INFO] running `Command { std: "docker" "start" "-a" "5429df5f402b4af689a57b2c8a9fb2faff42bddaeb3e184dd87422d1551d04a6", kill_on_drop: false }`
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> tests/compilation.rs:57:21
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn thing(value: Thing) -> &mut String {
[INFO] [stderr]    |                     ^^^^^     ----------- the same lifetime is elided here
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     the lifetime is hidden here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 57 |     fn thing(value: Thing<'_>) -> &mut String {
[INFO] [stderr]    |                          ++++
[INFO] [stderr] 
[INFO] [stderr] warning: unused comparison that must be used
[INFO] [stderr]   --> tests/compilation.rs:73:18
[INFO] [stderr]    |
[INFO] [stderr] 73 |         unsafe { *value != 0u8 };
[INFO] [stderr]    |                  ^^^^^^^^^^^^^ the comparison 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] 73 |         unsafe { let _ = *value != 0u8; };
[INFO] [stderr]    |                  +++++++              +
[INFO] [stderr] 
[INFO] [stderr] warning: `micro-timer` (test "compilation") generated 2 warnings
[INFO] [stderr] warning: unnecessary trailing semicolon
[INFO] [stderr]   --> tests/behavior.rs:13:6
[INFO] [stderr]    |
[INFO] [stderr] 13 |     };
[INFO] [stderr]    |      ^ help: remove this semicolon
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `micro-timer` (test "behavior") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/micro_timer-355d98372bc0fb1a)
[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]      Running tests/behavior.rs (/opt/rustwide/target/debug/deps/behavior-2baa91a56309b6bd)
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_behavior ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/compilation.rs (/opt/rustwide/target/debug/deps/compilation-0cface793ab043bb)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test test_fn_mut ... ok
[INFO] [stdout] test test_mut_pointer ... ok
[INFO] [stdout] test test_mut ... ok
[INFO] [stdout] test test_ref_mut ... ok
[INFO] [stdout] test check_name_conflict ... ok
[INFO] [stdout] test test_mut_struct ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests micro_timer
[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] running `Command { std: "docker" "inspect" "5429df5f402b4af689a57b2c8a9fb2faff42bddaeb3e184dd87422d1551d04a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5429df5f402b4af689a57b2c8a9fb2faff42bddaeb3e184dd87422d1551d04a6", kill_on_drop: false }`
[INFO] [stdout] 5429df5f402b4af689a57b2c8a9fb2faff42bddaeb3e184dd87422d1551d04a6