[INFO] fetching crate mech-utilities 0.0.5...
[INFO] testing mech-utilities-0.0.5 against try#ecabaf78506b7a4668d42dc20268c086b93f0fad for pr-87041
[INFO] extracting crate mech-utilities 0.0.5 into /workspace/builds/worker-15/source
[INFO] validating manifest of crates.io crate mech-utilities 0.0.5 on toolchain ecabaf78506b7a4668d42dc20268c086b93f0fad
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mech-utilities 0.0.5
[INFO] finished tweaking crates.io crate mech-utilities 0.0.5
[INFO] tweaked toml for crates.io crate mech-utilities 0.0.5 written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "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" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a64bce4454ec4d0772a0681d53bc990e44c34fee1dd972f89a97c7dc040f8fa
[INFO] running `Command { std: "docker" "start" "-a" "7a64bce4454ec4d0772a0681d53bc990e44c34fee1dd972f89a97c7dc040f8fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a64bce4454ec4d0772a0681d53bc990e44c34fee1dd972f89a97c7dc040f8fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a64bce4454ec4d0772a0681d53bc990e44c34fee1dd972f89a97c7dc040f8fa", kill_on_drop: false }`
[INFO] [stdout] 7a64bce4454ec4d0772a0681d53bc990e44c34fee1dd972f89a97c7dc040f8fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 42a3ea8da758c89328004ef98f2096dedb3811f560d008fecea619eaba6fba96
[INFO] running `Command { std: "docker" "start" "-a" "42a3ea8da758c89328004ef98f2096dedb3811f560d008fecea619eaba6fba96", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling mech-core v0.0.5
[INFO] [stderr]    Compiling mech-utilities v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Core`, `Interner`, `TableId`
[INFO] [stdout]  --> src/lib.rs:8:53
[INFO] [stdout]   |
[INFO] [stdout] 8 | use mech_core::{Table, Value, Aliases, Transaction, Interner, TableId, Core, Constraint, Register};
[INFO] [stdout]   |                                                     ^^^^^^^^  ^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.05s
[INFO] running `Command { std: "docker" "inspect" "42a3ea8da758c89328004ef98f2096dedb3811f560d008fecea619eaba6fba96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42a3ea8da758c89328004ef98f2096dedb3811f560d008fecea619eaba6fba96", kill_on_drop: false }`
[INFO] [stdout] 42a3ea8da758c89328004ef98f2096dedb3811f560d008fecea619eaba6fba96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a83fe09add3a9e6d7c25d0a125d076fac9acc7755d6f2a562c047142d13c864
[INFO] running `Command { std: "docker" "start" "-a" "1a83fe09add3a9e6d7c25d0a125d076fac9acc7755d6f2a562c047142d13c864", kill_on_drop: false }`
[INFO] [stderr]    Compiling mech-utilities v0.0.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Core`, `Interner`, `TableId`
[INFO] [stdout]  --> src/lib.rs:8:53
[INFO] [stdout]   |
[INFO] [stdout] 8 | use mech_core::{Table, Value, Aliases, Transaction, Interner, TableId, Core, Constraint, Register};
[INFO] [stdout]   |                                                     ^^^^^^^^  ^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Core`, `Interner`, `TableId`
[INFO] [stdout]  --> src/lib.rs:8:53
[INFO] [stdout]   |
[INFO] [stdout] 8 | use mech_core::{Table, Value, Aliases, Transaction, Interner, TableId, Core, Constraint, Register};
[INFO] [stdout]   |                                                     ^^^^^^^^  ^^^^^^^  ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.94s
[INFO] running `Command { std: "docker" "inspect" "1a83fe09add3a9e6d7c25d0a125d076fac9acc7755d6f2a562c047142d13c864", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a83fe09add3a9e6d7c25d0a125d076fac9acc7755d6f2a562c047142d13c864", kill_on_drop: false }`
[INFO] [stdout] 1a83fe09add3a9e6d7c25d0a125d076fac9acc7755d6f2a562c047142d13c864
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ecabaf78506b7a4668d42dc20268c086b93f0fad" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 4e56d97372b9f64ef059924d5343c7139724c01bab65bfd1d9ce8141ec4aac64
[INFO] running `Command { std: "docker" "start" "-a" "4e56d97372b9f64ef059924d5343c7139724c01bab65bfd1d9ce8141ec4aac64", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Core`, `Interner`, `TableId`
[INFO] [stderr]  --> src/lib.rs:8:53
[INFO] [stderr]   |
[INFO] [stderr] 8 | use mech_core::{Table, Value, Aliases, Transaction, Interner, TableId, Core, Constraint, Register};
[INFO] [stderr]   |                                                     ^^^^^^^^  ^^^^^^^  ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Core`, `Interner`, `TableId`
[INFO] [stderr]  --> src/lib.rs:8:53
[INFO] [stderr]   |
[INFO] [stderr] 8 | use mech_core::{Table, Value, Aliases, Transaction, Interner, TableId, Core, Constraint, Register};
[INFO] [stderr]   |                                                     ^^^^^^^^  ^^^^^^^  ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mech_utilities-138099b6fb38584a)
[INFO] [stderr]    Doc-tests mech-utilities
[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] [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" "4e56d97372b9f64ef059924d5343c7139724c01bab65bfd1d9ce8141ec4aac64", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4e56d97372b9f64ef059924d5343c7139724c01bab65bfd1d9ce8141ec4aac64", kill_on_drop: false }`
[INFO] [stdout] 4e56d97372b9f64ef059924d5343c7139724c01bab65bfd1d9ce8141ec4aac64