[INFO] fetching crate bigs 0.2.3...
[INFO] checking bigs-0.2.3 against master#195ad4830e11a544391abe296b146450dea8411b for pr-82781
[INFO] extracting crate bigs 0.2.3 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate bigs 0.2.3 on toolchain 195ad4830e11a544391abe296b146450dea8411b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bigs 0.2.3
[INFO] finished tweaking crates.io crate bigs 0.2.3
[INFO] tweaked toml for crates.io crate bigs 0.2.3 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d33b7fb6c932b5a8095656eccf6ec967e62d5e8fc6568ae495cbbad5ccc97a23
[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" "d33b7fb6c932b5a8095656eccf6ec967e62d5e8fc6568ae495cbbad5ccc97a23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d33b7fb6c932b5a8095656eccf6ec967e62d5e8fc6568ae495cbbad5ccc97a23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d33b7fb6c932b5a8095656eccf6ec967e62d5e8fc6568ae495cbbad5ccc97a23", kill_on_drop: false }`
[INFO] [stdout] d33b7fb6c932b5a8095656eccf6ec967e62d5e8fc6568ae495cbbad5ccc97a23
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+195ad4830e11a544391abe296b146450dea8411b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0571ec431c58d04f8f8f2b7078620f66232ff1b25914725ec25004fb888ffb00
[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" "0571ec431c58d04f8f8f2b7078620f66232ff1b25914725ec25004fb888ffb00", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.3.2
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling num-rational v0.3.2
[INFO] [stderr]     Checking getrandom v0.1.16
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand_pcg v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking bigs v0.2.3 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0465]: multiple rmeta candidates for `rand` found
[INFO] [stdout]  --> src/sampler.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::seq::SliceRandom;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout] note: candidate #1: /opt/rustwide/target/debug/deps/librand-079cec3b49051ad5.rmeta
[INFO] [stdout]  --> src/sampler.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::seq::SliceRandom;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] note: candidate #2: /opt/rustwide/target/debug/deps/librand-b3204512a5e3f2b0.rmeta
[INFO] [stdout]  --> src/sampler.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use rand::seq::SliceRandom;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `bigs`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "0571ec431c58d04f8f8f2b7078620f66232ff1b25914725ec25004fb888ffb00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0571ec431c58d04f8f8f2b7078620f66232ff1b25914725ec25004fb888ffb00", kill_on_drop: false }`
[INFO] [stdout] 0571ec431c58d04f8f8f2b7078620f66232ff1b25914725ec25004fb888ffb00