[INFO] fetching crate big_num_math 6.0.0...
[INFO] checking big_num_math-6.0.0 against master#8a703520e80d87d4423c01f9d4fbc9e5f6533a02 for pr-154205-1
[INFO] extracting crate big_num_math 6.0.0 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate big_num_math 6.0.0
[INFO] finished tweaking crates.io crate big_num_math 6.0.0
[INFO] tweaked toml for crates.io crate big_num_math 6.0.0 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate big_num_math 6.0.0 on toolchain 8a703520e80d87d4423c01f9d4fbc9e5f6533a02
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate big_num_math 6.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "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-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3b585d100c25934f184acfa8f9e63827cb89598d140517d5619c1f21033f1b0
[INFO] running `Command { std: "docker" "start" "-a" "a3b585d100c25934f184acfa8f9e63827cb89598d140517d5619c1f21033f1b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3b585d100c25934f184acfa8f9e63827cb89598d140517d5619c1f21033f1b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3b585d100c25934f184acfa8f9e63827cb89598d140517d5619c1f21033f1b0", kill_on_drop: false }`
[INFO] [stdout] a3b585d100c25934f184acfa8f9e63827cb89598d140517d5619c1f21033f1b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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=forbid" "-e" "RUSTDOCFLAGS=--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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+8a703520e80d87d4423c01f9d4fbc9e5f6533a02" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f63aeeaa4b6d3755c48071506cb2f1a1a265bf14669065c65451cb2327d407a3
[INFO] running `Command { std: "docker" "start" "-a" "f63aeeaa4b6d3755c48071506cb2f1a1a265bf14669065c65451cb2327d407a3", kill_on_drop: false }`
[INFO] [stderr]     Checking big_num_math v6.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `pg`
[INFO] [stdout]     --> src/lib.rs:4899:29
[INFO] [stdout]      |
[INFO] [stdout] 4899 |                 use crate::{pg, PrimeGenClass, PrimeGenErr, PrimeGenRes, PrimeGenResAide};
[INFO] [stdout]      |                             ^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pg`
[INFO] [stdout]     --> src/lib.rs:4916:29
[INFO] [stdout]      |
[INFO] [stdout] 4916 |                 use crate::{pg, PrimeGenClass, PrimeGenErr, PrimeGenRes, PrimeGenResAide};
[INFO] [stdout]      |                             ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pg`
[INFO] [stdout]     --> src/lib.rs:4927:29
[INFO] [stdout]      |
[INFO] [stdout] 4927 |                 use crate::{pg, PrimeGenClass, PrimeGenErr, PrimeGenRes, PrimeGenResAide};
[INFO] [stdout]      |                             ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.12s
[INFO] running `Command { std: "docker" "inspect" "f63aeeaa4b6d3755c48071506cb2f1a1a265bf14669065c65451cb2327d407a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f63aeeaa4b6d3755c48071506cb2f1a1a265bf14669065c65451cb2327d407a3", kill_on_drop: false }`
[INFO] [stdout] f63aeeaa4b6d3755c48071506cb2f1a1a265bf14669065c65451cb2327d407a3