[INFO] fetching crate themelio-stf 0.6.4...
[INFO] checking themelio-stf-0.6.4 against try#cac44d9528e3bbbdaa1537d187bd489ccc5de18c for pr-91141
[INFO] extracting crate themelio-stf 0.6.4 into /workspace/builds/worker-53/source
[INFO] validating manifest of crates.io crate themelio-stf 0.6.4 on toolchain cac44d9528e3bbbdaa1537d187bd489ccc5de18c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate themelio-stf 0.6.4
[INFO] finished tweaking crates.io crate themelio-stf 0.6.4
[INFO] tweaked toml for crates.io crate themelio-stf 0.6.4 written to /workspace/builds/worker-53/source/Cargo.toml
[INFO] crate crates.io crate themelio-stf 0.6.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76343de64b737304a942520a53b935673850cf39fba46dee18634575529cc51d
[INFO] running `Command { std: "docker" "start" "-a" "76343de64b737304a942520a53b935673850cf39fba46dee18634575529cc51d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76343de64b737304a942520a53b935673850cf39fba46dee18634575529cc51d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76343de64b737304a942520a53b935673850cf39fba46dee18634575529cc51d", kill_on_drop: false }`
[INFO] [stdout] 76343de64b737304a942520a53b935673850cf39fba46dee18634575529cc51d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+cac44d9528e3bbbdaa1537d187bd489ccc5de18c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 133ea6d7377efe7e099243c4bc26dff6d421da2f8776e7e73dd0a26a8664db45
[INFO] running `Command { std: "docker" "start" "-a" "133ea6d7377efe7e099243c4bc26dff6d421da2f8776e7e73dd0a26a8664db45", kill_on_drop: false }`
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[INFO] [stderr]     Checking genawaiter v0.99.1
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[INFO] [stderr]     Checking serde-big-array v0.3.2
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[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]     Checking stdcode v0.1.2
[INFO] [stderr]     Checking novasmt v0.1.9
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[INFO] [stderr]     Checking criterion v0.3.5
[INFO] [stderr]    Compiling proc-macro-crate v1.0.0
[INFO] [stderr]    Compiling num_enum_derive v0.5.4
[INFO] [stderr]     Checking num_enum v0.5.4
[INFO] [stderr]     Checking themelio-stf v0.6.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/bin/fuzz_imbl.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tap::Tap`
[INFO] [stdout]  --> src/bin/fuzz_imbl.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use tap::Tap;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/bin/fuzz_imbl.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tap::Tap`
[INFO] [stdout]  --> src/bin/fuzz_imbl.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use tap::Tap;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `eval`
[INFO] [stdout]   --> src/bin/fuzz_imbl.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn eval(ops: &[Op]) -> Option<imbl::Vector<u8>> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_once`
[INFO] [stdout]   --> src/bin/fuzz_imbl.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn test_once(data: &[u8]) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `eval`
[INFO] [stdout]   --> src/bin/fuzz_imbl.rs:26:4
[INFO] [stdout]    |
[INFO] [stdout] 26 | fn eval(ops: &[Op]) -> Option<imbl::Vector<u8>> {
[INFO] [stdout]    |    ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_once`
[INFO] [stdout]   --> src/bin/fuzz_imbl.rs:42:4
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn test_once(data: &[u8]) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/bin/fuzz_melvm.rs:34:45
[INFO] [stdout]    |
[INFO] [stdout] 34 |     covenant.check_raw(&[second.iter().map(|f| 0u8).collect::<Vec<_>>().into()]);
[INFO] [stdout]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_once`
[INFO] [stdout]   --> src/bin/fuzz_melvm.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn test_once(data: &[u8]) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `f`
[INFO] [stdout]   --> src/bin/fuzz_melvm.rs:34:45
[INFO] [stdout]    |
[INFO] [stdout] 34 |     covenant.check_raw(&[second.iter().map(|f| 0u8).collect::<Vec<_>>().into()]);
[INFO] [stdout]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_f`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_once`
[INFO] [stdout]   --> src/bin/fuzz_melvm.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn test_once(data: &[u8]) {
[INFO] [stdout]    |    ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Instant`
[INFO] [stdout]  --> examples/melvm_cost_fuzz.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::time::Instant;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `weight`
[INFO] [stdout]   --> examples/melvm_cost_fuzz.rs:32:9
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let weight = val.weight().unwrap() as f64;
[INFO] [stdout]    |         ^^^^^^ help: if this is intentional, prefix it with an underscore: `_weight`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.85s
[INFO] running `Command { std: "docker" "inspect" "133ea6d7377efe7e099243c4bc26dff6d421da2f8776e7e73dd0a26a8664db45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "133ea6d7377efe7e099243c4bc26dff6d421da2f8776e7e73dd0a26a8664db45", kill_on_drop: false }`
[INFO] [stdout] 133ea6d7377efe7e099243c4bc26dff6d421da2f8776e7e73dd0a26a8664db45