[INFO] cloning repository https://github.com/tallboy/rusty-tin-foil
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tallboy/rusty-tin-foil" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftallboy%2Frusty-tin-foil", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftallboy%2Frusty-tin-foil'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0666af491689239f405eed45b74e4bba702d5b11
[INFO] testing tallboy/rusty-tin-foil against beta-2021-01-01 for beta-1.50-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftallboy%2Frusty-tin-foil" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tallboy/rusty-tin-foil on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tallboy/rusty-tin-foil
[INFO] finished tweaking git repo https://github.com/tallboy/rusty-tin-foil
[INFO] tweaked toml for git repo https://github.com/tallboy/rusty-tin-foil written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/tallboy/rusty-tin-foil already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6296cb96f52e7ad59dfc0e63fac0263c15e9bb78b43b73d9782b68036bff2bca
[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" "6296cb96f52e7ad59dfc0e63fac0263c15e9bb78b43b73d9782b68036bff2bca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6296cb96f52e7ad59dfc0e63fac0263c15e9bb78b43b73d9782b68036bff2bca", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6296cb96f52e7ad59dfc0e63fac0263c15e9bb78b43b73d9782b68036bff2bca", kill_on_drop: false }`
[INFO] [stdout] 6296cb96f52e7ad59dfc0e63fac0263c15e9bb78b43b73d9782b68036bff2bca
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f0c0aaa4a19e5f82c993940512ab8330f0f2e7aa1815e28a698876b3c1fc22b9
[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" "f0c0aaa4a19e5f82c993940512ab8330f0f2e7aa1815e28a698876b3c1fc22b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling getrandom v0.1.13
[INFO] [stderr]    Compiling ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling c2-chacha v0.2.3
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling rand_chacha v0.2.1
[INFO] [stderr]    Compiling rand v0.7.2
[INFO] [stderr]    Compiling rusty-tin-foil v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Standard`, `Uniform`
[INFO] [stdout]  --> src/main.rs:2:41
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::distributions::{Alphanumeric, Uniform, Standard};
[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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.09s
[INFO] running `Command { std: "docker" "inspect" "f0c0aaa4a19e5f82c993940512ab8330f0f2e7aa1815e28a698876b3c1fc22b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f0c0aaa4a19e5f82c993940512ab8330f0f2e7aa1815e28a698876b3c1fc22b9", kill_on_drop: false }`
[INFO] [stdout] f0c0aaa4a19e5f82c993940512ab8330f0f2e7aa1815e28a698876b3c1fc22b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 754a436f69fa14e4a8e7ead45b830b96c33bf3a9e97643599e4718562497931d
[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" "754a436f69fa14e4a8e7ead45b830b96c33bf3a9e97643599e4718562497931d", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusty-tin-foil v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Standard`, `Uniform`
[INFO] [stdout]  --> src/main.rs:2:41
[INFO] [stdout]   |
[INFO] [stdout] 2 | use rand::distributions::{Alphanumeric, Uniform, Standard};
[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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.97s
[INFO] running `Command { std: "docker" "inspect" "754a436f69fa14e4a8e7ead45b830b96c33bf3a9e97643599e4718562497931d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "754a436f69fa14e4a8e7ead45b830b96c33bf3a9e97643599e4718562497931d", kill_on_drop: false }`
[INFO] [stdout] 754a436f69fa14e4a8e7ead45b830b96c33bf3a9e97643599e4718562497931d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5b05f2d37bef29b3d50ebf0368de48645187238c0388e403f6489b8b9b333a80
[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" "5b05f2d37bef29b3d50ebf0368de48645187238c0388e403f6489b8b9b333a80", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Standard`, `Uniform`
[INFO] [stderr]  --> src/main.rs:2:41
[INFO] [stderr]   |
[INFO] [stderr] 2 | use rand::distributions::{Alphanumeric, Uniform, Standard};
[INFO] [stderr]   |                                         ^^^^^^^  ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/rusty_tin_foil-1b0aee52f393a293
[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" "5b05f2d37bef29b3d50ebf0368de48645187238c0388e403f6489b8b9b333a80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b05f2d37bef29b3d50ebf0368de48645187238c0388e403f6489b8b9b333a80", kill_on_drop: false }`
[INFO] [stdout] 5b05f2d37bef29b3d50ebf0368de48645187238c0388e403f6489b8b9b333a80