[INFO] fetching crate hexponent 0.3.1...
[INFO] testing hexponent-0.3.1 against master#b70888601af92f6cdc0364abab3446e418b91d36 for pr-86479
[INFO] extracting crate hexponent 0.3.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate hexponent 0.3.1 on toolchain b70888601af92f6cdc0364abab3446e418b91d36
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hexponent 0.3.1
[INFO] finished tweaking crates.io crate hexponent 0.3.1
[INFO] tweaked toml for crates.io crate hexponent 0.3.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d38a23af7b6a1d3312202a8d5cbec2cb980fdaf163ecaaff0f7226f1fd57f696
[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" "d38a23af7b6a1d3312202a8d5cbec2cb980fdaf163ecaaff0f7226f1fd57f696", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d38a23af7b6a1d3312202a8d5cbec2cb980fdaf163ecaaff0f7226f1fd57f696", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d38a23af7b6a1d3312202a8d5cbec2cb980fdaf163ecaaff0f7226f1fd57f696", kill_on_drop: false }`
[INFO] [stdout] d38a23af7b6a1d3312202a8d5cbec2cb980fdaf163ecaaff0f7226f1fd57f696
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "build" "--frozen" "--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] 6350b42df47fe8cc25c67813058944f41353e062cbc5a259d046fa59878f21ed
[INFO] running `Command { std: "docker" "start" "-a" "6350b42df47fe8cc25c67813058944f41353e062cbc5a259d046fa59878f21ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling hexponent v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.64s
[INFO] running `Command { std: "docker" "inspect" "6350b42df47fe8cc25c67813058944f41353e062cbc5a259d046fa59878f21ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6350b42df47fe8cc25c67813058944f41353e062cbc5a259d046fa59878f21ed", kill_on_drop: false }`
[INFO] [stdout] 6350b42df47fe8cc25c67813058944f41353e062cbc5a259d046fa59878f21ed
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a57c08a4cbfe724a836913c3029d8c2ff16a05850cbcb4c3db6472944196c74
[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" "1a57c08a4cbfe724a836913c3029d8c2ff16a05850cbcb4c3db6472944196c74", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling itoa v0.4.7
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling serde_json v1.0.66
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling syn v1.0.74
[INFO] [stderr]    Compiling bstr v0.2.16
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.127
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stderr]    Compiling hexponent v0.3.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `f64_to_string`
[INFO] [stdout]    --> src/tests.rs:242:12
[INFO] [stdout]     |
[INFO] [stdout] 242 |     pub fn f64_to_string(f: f64) -> Result<Vec<u8>, ()> {
[INFO] [stdout]     |            ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` 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 38.68s
[INFO] running `Command { std: "docker" "inspect" "1a57c08a4cbfe724a836913c3029d8c2ff16a05850cbcb4c3db6472944196c74", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a57c08a4cbfe724a836913c3029d8c2ff16a05850cbcb4c3db6472944196c74", kill_on_drop: false }`
[INFO] [stdout] 1a57c08a4cbfe724a836913c3029d8c2ff16a05850cbcb4c3db6472944196c74
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+b70888601af92f6cdc0364abab3446e418b91d36" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cb443774d09fbc3406d5eefbd6ea36f9d10ced180560fd266cd80d2205d4daec
[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" "cb443774d09fbc3406d5eefbd6ea36f9d10ced180560fd266cd80d2205d4daec", kill_on_drop: false }`
[INFO] [stderr] warning: function is never used: `f64_to_string`
[INFO] [stderr]    --> src/tests.rs:242:12
[INFO] [stderr]     |
[INFO] [stderr] 242 |     pub fn f64_to_string(f: f64) -> Result<Vec<u8>, ()> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `hexponent` (lib test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hexponent-2d5e241c409d0015)
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test tests::test_subnormal ... ignored
[INFO] [stdout] test tests::test_incomplete ... ok
[INFO] [stdout] test tests::test_imprecise_conversions ... ok
[INFO] [stdout] test tests::test_fuzzer_finds ... ok
[INFO] [stderr]    Doc-tests hexponent
[INFO] [stdout] test tests::test_error_indecies ... ok
[INFO] [stdout] test tests::test_zero_trimming ... ok
[INFO] [stdout] test tests::test_integers ... ok
[INFO] [stdout] test tests::test_zero ... ok
[INFO] [stdout] test tests::rcc_tests ... ok
[INFO] [stdout] test tests::test_overflow_underflow ... ok
[INFO] [stdout] test tests::test_fractions ... ok
[INFO] [stdout] test tests::test_double_precision ... ok
[INFO] [stdout] test tests::test_exponents ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 11) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.43s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "cb443774d09fbc3406d5eefbd6ea36f9d10ced180560fd266cd80d2205d4daec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb443774d09fbc3406d5eefbd6ea36f9d10ced180560fd266cd80d2205d4daec", kill_on_drop: false }`
[INFO] [stdout] cb443774d09fbc3406d5eefbd6ea36f9d10ced180560fd266cd80d2205d4daec