[INFO] fetching crate samplr 0.1.0...
[INFO] testing samplr-0.1.0 against try#dec9417b8611e34e787a3e4c37686b5131f9e5c5 for pr-154210-2
[INFO] extracting crate samplr 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate samplr 0.1.0
[INFO] finished tweaking crates.io crate samplr 0.1.0
[INFO] tweaked toml for crates.io crate samplr 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate samplr 0.1.0 on toolchain dec9417b8611e34e787a3e4c37686b5131f9e5c5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate samplr 0.1.0 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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f3b05d3813063b1da571f30a814653db680f14dd3698b989adffd4fe5aa42a3e
[INFO] running `Command { std: "docker" "start" "-a" "f3b05d3813063b1da571f30a814653db680f14dd3698b989adffd4fe5aa42a3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f3b05d3813063b1da571f30a814653db680f14dd3698b989adffd4fe5aa42a3e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3b05d3813063b1da571f30a814653db680f14dd3698b989adffd4fe5aa42a3e", kill_on_drop: false }`
[INFO] [stdout] f3b05d3813063b1da571f30a814653db680f14dd3698b989adffd4fe5aa42a3e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 246f23d0c1aa07375b7d51b0d441a2e30abd0a2ce219c22c3e352a26f6183d9d
[INFO] running `Command { std: "docker" "start" "-a" "246f23d0c1aa07375b7d51b0d441a2e30abd0a2ce219c22c3e352a26f6183d9d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling samplr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.63s
[INFO] running `Command { std: "docker" "inspect" "246f23d0c1aa07375b7d51b0d441a2e30abd0a2ce219c22c3e352a26f6183d9d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "246f23d0c1aa07375b7d51b0d441a2e30abd0a2ce219c22c3e352a26f6183d9d", kill_on_drop: false }`
[INFO] [stdout] 246f23d0c1aa07375b7d51b0d441a2e30abd0a2ce219c22c3e352a26f6183d9d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e739704f26eff82f115cd5686f544dcf8f3daa065b214bd2dcaa6214777628b8
[INFO] running `Command { std: "docker" "start" "-a" "e739704f26eff82f115cd5686f544dcf8f3daa065b214bd2dcaa6214777628b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libm v0.2.1
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling assert_approx_eq v1.1.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling test-case v1.2.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling rand_distr v0.4.2
[INFO] [stderr]    Compiling samplr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 7.58s
[INFO] running `Command { std: "docker" "inspect" "e739704f26eff82f115cd5686f544dcf8f3daa065b214bd2dcaa6214777628b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e739704f26eff82f115cd5686f544dcf8f3daa065b214bd2dcaa6214777628b8", kill_on_drop: false }`
[INFO] [stdout] e739704f26eff82f115cd5686f544dcf8f3daa065b214bd2dcaa6214777628b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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" "+dec9417b8611e34e787a3e4c37686b5131f9e5c5" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] abfa63f8c65b37e1db69847fb9b05a587e88cffbc9cce527f809850610ab1c7d
[INFO] running `Command { std: "docker" "start" "-a" "abfa63f8c65b37e1db69847fb9b05a587e88cffbc9cce527f809850610ab1c7d", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/samplr-1eed9e69b338edfd)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test tests::sample_is_pop_when_pop_size_less_than_sample_size ... ok
[INFO] [stdout] test tests::seed_deterministic_samples ... ok
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/samplr-5eafa04bab5f520c)
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 10 tests
[INFO] [stdout] test tests::inputs::explicit_stdin ... ok
[INFO] [stdout] test tests::inputs::multiple_files ... ok
[INFO] [stdout] test tests::inputs::multiple_files_and_stdin ... ok
[INFO] [stdout] test tests::inputs::implicit_stdin ... ok
[INFO] [stdout] test tests::inputs::single_file ... ok
[INFO] [stdout] test tests::seed::long ... ok
[INFO] [stdout] test tests::seed::default ... ok
[INFO] [stdout] test tests::sample_size::long ... ok
[INFO] [stdout] test tests::sample_size::short ... ok
[INFO] [stdout] test tests::sample_size::default ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 10 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests samplr
[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" "abfa63f8c65b37e1db69847fb9b05a587e88cffbc9cce527f809850610ab1c7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abfa63f8c65b37e1db69847fb9b05a587e88cffbc9cce527f809850610ab1c7d", kill_on_drop: false }`
[INFO] [stdout] abfa63f8c65b37e1db69847fb9b05a587e88cffbc9cce527f809850610ab1c7d