[INFO] crate mech-utilities 0.0.5 is already in cache
[INFO] checking mech-utilities-0.0.5 against master#c724b67e1b474262917a5154d74e7072267593fe for pr-74315
[INFO] extracting crate mech-utilities 0.0.5 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate mech-utilities 0.0.5 on toolchain c724b67e1b474262917a5154d74e7072267593fe
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "read-manifest" "--manifest-path" "Cargo.toml", 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-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 191a65382f42dc8055b866af70420237249390405b0a7479827c3656768a9bb6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "191a65382f42dc8055b866af70420237249390405b0a7479827c3656768a9bb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "191a65382f42dc8055b866af70420237249390405b0a7479827c3656768a9bb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "191a65382f42dc8055b866af70420237249390405b0a7479827c3656768a9bb6", kill_on_drop: false }`
[INFO] [stdout] 191a65382f42dc8055b866af70420237249390405b0a7479827c3656768a9bb6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+c724b67e1b474262917a5154d74e7072267593fe" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 00536ae6cc047c60b95210087aaaa41c6a4769d16637f66530d5333370ef3fe3
[INFO] running `Command { std: "docker" "start" "-a" "00536ae6cc047c60b95210087aaaa41c6a4769d16637f66530d5333370ef3fe3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.35
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling hashbrown v0.7.2
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking mech-core v0.0.5
[INFO] [stderr]     Checking 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: 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: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 34.99s
[INFO] running `Command { std: "docker" "inspect" "00536ae6cc047c60b95210087aaaa41c6a4769d16637f66530d5333370ef3fe3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00536ae6cc047c60b95210087aaaa41c6a4769d16637f66530d5333370ef3fe3", kill_on_drop: false }`
[INFO] [stdout] 00536ae6cc047c60b95210087aaaa41c6a4769d16637f66530d5333370ef3fe3