[INFO] fetching crate johnston 0.2.1...
[INFO] testing johnston-0.2.1 against beta-2020-10-09 for beta-1.48-1
[INFO] extracting crate johnston 0.2.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate johnston 0.2.1 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate johnston 0.2.1
[INFO] finished tweaking crates.io crate johnston 0.2.1
[INFO] tweaked toml for crates.io crate johnston 0.2.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate johnston 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f767d22be86b1c040e2462c60554907efae0da845765c9a5721a22472b23678b
[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" "f767d22be86b1c040e2462c60554907efae0da845765c9a5721a22472b23678b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f767d22be86b1c040e2462c60554907efae0da845765c9a5721a22472b23678b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f767d22be86b1c040e2462c60554907efae0da845765c9a5721a22472b23678b", kill_on_drop: false }`
[INFO] [stdout] f767d22be86b1c040e2462c60554907efae0da845765c9a5721a22472b23678b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e9b42358943f560fb156bcc2ead5c837fa7682e8ffaca3dded75004eb0828b8
[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" "6e9b42358943f560fb156bcc2ead5c837fa7682e8ffaca3dded75004eb0828b8", kill_on_drop: false }`
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.3
[INFO] [stderr]    Compiling num-iter v0.1.40
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling serde_json v1.0.48
[INFO] [stderr]    Compiling johnston v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `factors`
[INFO] [stdout]    --> src/lib.rs:108:4
[INFO] [stdout]     |
[INFO] [stdout] 108 | fn factors(num: i32) -> Vec<i32> {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prime`
[INFO] [stdout]    --> src/lib.rs:120:4
[INFO] [stdout]     |
[INFO] [stdout] 120 | fn prime(num: i32) -> bool {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `power_of_two`
[INFO] [stdout]    --> src/lib.rs:130:4
[INFO] [stdout]     |
[INFO] [stdout] 130 | fn power_of_two(num: i32) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gpf`
[INFO] [stdout]    --> src/lib.rs:134:4
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn gpf(num: i32) -> i32 {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.68s
[INFO] running `Command { std: "docker" "inspect" "6e9b42358943f560fb156bcc2ead5c837fa7682e8ffaca3dded75004eb0828b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e9b42358943f560fb156bcc2ead5c837fa7682e8ffaca3dded75004eb0828b8", kill_on_drop: false }`
[INFO] [stdout] 6e9b42358943f560fb156bcc2ead5c837fa7682e8ffaca3dded75004eb0828b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] b6616d90abde91f82302288ed7c60edc491f1aa72906d454e15cb914a0a53c3f
[INFO] running `Command { std: "docker" "start" "-a" "b6616d90abde91f82302288ed7c60edc491f1aa72906d454e15cb914a0a53c3f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling johnston v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `factors`
[INFO] [stdout]    --> src/lib.rs:108:4
[INFO] [stdout]     |
[INFO] [stdout] 108 | fn factors(num: i32) -> Vec<i32> {
[INFO] [stdout]     |    ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `prime`
[INFO] [stdout]    --> src/lib.rs:120:4
[INFO] [stdout]     |
[INFO] [stdout] 120 | fn prime(num: i32) -> bool {
[INFO] [stdout]     |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `power_of_two`
[INFO] [stdout]    --> src/lib.rs:130:4
[INFO] [stdout]     |
[INFO] [stdout] 130 | fn power_of_two(num: i32) -> bool {
[INFO] [stdout]     |    ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gpf`
[INFO] [stdout]    --> src/lib.rs:134:4
[INFO] [stdout]     |
[INFO] [stdout] 134 | fn gpf(num: i32) -> i32 {
[INFO] [stdout]     |    ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.00s
[INFO] running `Command { std: "docker" "inspect" "b6616d90abde91f82302288ed7c60edc491f1aa72906d454e15cb914a0a53c3f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6616d90abde91f82302288ed7c60edc491f1aa72906d454e15cb914a0a53c3f", kill_on_drop: false }`
[INFO] [stdout] b6616d90abde91f82302288ed7c60edc491f1aa72906d454e15cb914a0a53c3f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-10-09" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c83efa3888aa1ea54ab2d5d1649d815631e63af98fe83b9a9c55f494d7f95bc3
[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" "c83efa3888aa1ea54ab2d5d1649d815631e63af98fe83b9a9c55f494d7f95bc3", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `factors`
[INFO] [stderr]    --> src/lib.rs:108:4
[INFO] [stderr]     |
[INFO] [stderr] 108 | fn factors(num: i32) -> Vec<i32> {
[INFO] [stderr]     |    ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `prime`
[INFO] [stderr]    --> src/lib.rs:120:4
[INFO] [stderr]     |
[INFO] [stderr] 120 | fn prime(num: i32) -> bool {
[INFO] [stderr]     |    ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `power_of_two`
[INFO] [stderr]    --> src/lib.rs:130:4
[INFO] [stderr]     |
[INFO] [stderr] 130 | fn power_of_two(num: i32) -> bool {
[INFO] [stderr]     |    ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `gpf`
[INFO] [stderr]    --> src/lib.rs:134:4
[INFO] [stderr]     |
[INFO] [stderr] 134 | fn gpf(num: i32) -> i32 {
[INFO] [stderr]     |    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/johnston-0f1c584a22131a32
[INFO] [stdout] 
[INFO] [stdout] running 7 tests
[INFO] [stdout] test tests::prime_works ... ok
[INFO] [stdout] test tests::power_of_two_works ... ok
[INFO] [stdout] test tests::flatten_works ... ok
[INFO] [stdout] test tests::cents_works ... ok
[INFO] [stdout] test tests::factors_works ... ok
[INFO] [stdout] test tests::walk_works ... ok
[INFO] [stdout] test tests::gpf_works ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 7 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[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
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/smoke_test-68679c8a27351893
[INFO] [stderr]    Doc-tests johnston
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c83efa3888aa1ea54ab2d5d1649d815631e63af98fe83b9a9c55f494d7f95bc3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c83efa3888aa1ea54ab2d5d1649d815631e63af98fe83b9a9c55f494d7f95bc3", kill_on_drop: false }`
[INFO] [stdout] c83efa3888aa1ea54ab2d5d1649d815631e63af98fe83b9a9c55f494d7f95bc3
