[INFO] fetching crate samplers 0.1.3...
[INFO] testing samplers-0.1.3 against 1.60.0 for beta-1.61-1
[INFO] extracting crate samplers 0.1.3 into /workspace/builds/worker-88/source
[INFO] validating manifest of crates.io crate samplers 0.1.3 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate samplers 0.1.3
[INFO] finished tweaking crates.io crate samplers 0.1.3
[INFO] tweaked toml for crates.io crate samplers 0.1.3 written to /workspace/builds/worker-88/source/Cargo.toml
[INFO] crate crates.io crate samplers 0.1.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded backtrace-sys v0.1.33
[INFO] [stderr]   Downloaded statrs v0.12.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55d5bd670567a06ab840d62f319881631e81b429d5cc130dd6b3cb1ee0f96059
[INFO] running `Command { std: "docker" "start" "-a" "55d5bd670567a06ab840d62f319881631e81b429d5cc130dd6b3cb1ee0f96059", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55d5bd670567a06ab840d62f319881631e81b429d5cc130dd6b3cb1ee0f96059", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55d5bd670567a06ab840d62f319881631e81b429d5cc130dd6b3cb1ee0f96059", kill_on_drop: false }`
[INFO] [stdout] 55d5bd670567a06ab840d62f319881631e81b429d5cc130dd6b3cb1ee0f96059
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a965c31a51caf2f7202347091072c92203309aeccf9fa669b21f41f6fccd038c
[INFO] running `Command { std: "docker" "start" "-a" "a965c31a51caf2f7202347091072c92203309aeccf9fa669b21f41f6fccd038c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling proc-macro2 v1.0.9
[INFO] [stderr]    Compiling cc v1.0.50
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling failure_derive v0.1.7
[INFO] [stderr]    Compiling rustc-demangle v0.1.16
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling backtrace-sys v0.1.33
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling backtrace v0.3.45
[INFO] [stderr]    Compiling rand_distr v0.2.2
[INFO] [stderr]    Compiling statrs v0.12.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling failure v0.1.7
[INFO] [stderr]    Compiling samplers v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.34s
[INFO] running `Command { std: "docker" "inspect" "a965c31a51caf2f7202347091072c92203309aeccf9fa669b21f41f6fccd038c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a965c31a51caf2f7202347091072c92203309aeccf9fa669b21f41f6fccd038c", kill_on_drop: false }`
[INFO] [stdout] a965c31a51caf2f7202347091072c92203309aeccf9fa669b21f41f6fccd038c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 87bd1c6630697416d1b35d78b590881ce9e7efcb3c4a7a8fa7a06a3c535c4d1f
[INFO] running `Command { std: "docker" "start" "-a" "87bd1c6630697416d1b35d78b590881ce9e7efcb3c4a7a8fa7a06a3c535c4d1f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling samplers v0.1.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 3.67s
[INFO] running `Command { std: "docker" "inspect" "87bd1c6630697416d1b35d78b590881ce9e7efcb3c4a7a8fa7a06a3c535c4d1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "87bd1c6630697416d1b35d78b590881ce9e7efcb3c4a7a8fa7a06a3c535c4d1f", kill_on_drop: false }`
[INFO] [stdout] 87bd1c6630697416d1b35d78b590881ce9e7efcb3c4a7a8fa7a06a3c535c4d1f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-88/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f82205819d46997248c74764b6a8b2cfe6e3951b6f706586839e6878c6bb26b0
[INFO] running `Command { std: "docker" "start" "-a" "f82205819d46997248c74764b6a8b2cfe6e3951b6f706586839e6878c6bb26b0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/samplers-49781d12f5e3c017)
[INFO] [stdout] 
[INFO] [stdout] running 6 tests
[INFO] [stdout] test summary::test_distribution_summary ... ok
[INFO] [stdout] test summary::test_central_moments_summary ... ok
[INFO] [stdout] test histogram::test_linspace ... ok
[INFO] [stdout] test summary::test_mean ... ok
[INFO] [stdout] test histogram::test_histogram ... ok
[INFO] [stdout] test summary::test_variance ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 6 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f82205819d46997248c74764b6a8b2cfe6e3951b6f706586839e6878c6bb26b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f82205819d46997248c74764b6a8b2cfe6e3951b6f706586839e6878c6bb26b0", kill_on_drop: false }`
[INFO] [stdout] f82205819d46997248c74764b6a8b2cfe6e3951b6f706586839e6878c6bb26b0