[INFO] fetching crate scryer-prolog 0.8.127...
[INFO] testing scryer-prolog-0.8.127 against 1.49.0 for beta-1.50-1
[INFO] extracting crate scryer-prolog 0.8.127 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate scryer-prolog 0.8.127 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate scryer-prolog 0.8.127
[INFO] finished tweaking crates.io crate scryer-prolog 0.8.127
[INFO] tweaked toml for crates.io crate scryer-prolog 0.8.127 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate scryer-prolog 0.8.127 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.49.0" "metadata" "--no-deps" "--format-version=1", 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] 6c518440b02449b5408b2aa0b350f2c5fb56ee83f8a1a1c9f02a629a37d0c2a7
[INFO] running `Command { std: "docker" "start" "-a" "6c518440b02449b5408b2aa0b350f2c5fb56ee83f8a1a1c9f02a629a37d0c2a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6c518440b02449b5408b2aa0b350f2c5fb56ee83f8a1a1c9f02a629a37d0c2a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c518440b02449b5408b2aa0b350f2c5fb56ee83f8a1a1c9f02a629a37d0c2a7", kill_on_drop: false }`
[INFO] [stdout] 6c518440b02449b5408b2aa0b350f2c5fb56ee83f8a1a1c9f02a629a37d0c2a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.49.0" "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] 2ed64d6005a743e4c8f1960ffe850559431df0a7077ec6ad44c12e42cc572e41
[INFO] running `Command { std: "docker" "start" "-a" "2ed64d6005a743e4c8f1960ffe850559431df0a7077ec6ad44c12e42cc572e41", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling unicode-xid v0.2.0
[INFO] [stderr]    Compiling pkg-config v0.3.17
[INFO] [stderr]    Compiling ryu v1.0.4
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling serde_json v1.0.55
[INFO] [stderr]    Compiling serde_derive v1.0.113
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.2.2
[INFO] [stderr]    Compiling arrayvec v0.4.12
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling openssl v0.10.29
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling arc-swap v0.4.6
[INFO] [stderr]    Compiling rug v1.8.0
[INFO] [stderr]    Compiling static_assertions v0.3.4
[INFO] [stderr]    Compiling smallvec v1.4.0
[INFO] [stderr]    Compiling native-tls v0.2.4
[INFO] [stderr]    Compiling az v0.3.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.15
[INFO] [stderr]    Compiling bit-vec v0.6.2
[INFO] [stderr]    Compiling nix v0.15.0
[INFO] [stderr]    Compiling utf8parse v0.2.0
[INFO] [stderr]    Compiling unicode-width v0.1.7
[INFO] [stderr]    Compiling once_cell v1.3.1
[INFO] [stderr]    Compiling xmlparser v0.13.2
[INFO] [stderr]    Compiling ref_thread_local v0.0.0
[INFO] [stderr]    Compiling downcast v0.10.0
[INFO] [stderr]    Compiling divrem v0.1.0
[INFO] [stderr]    Compiling num-traits v0.2.11
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling num-integer v0.1.42
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling lock_api v0.3.4
[INFO] [stderr]    Compiling openssl-src v111.9.0+1.1.1g
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling lexical-core v0.4.6
[INFO] [stderr]    Compiling lexical v2.2.2
[INFO] [stderr]    Compiling roxmltree v0.11.0
[INFO] [stderr]    Compiling unicode_reader v1.0.0
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]    Compiling sha3 v0.8.2
[INFO] [stderr]    Compiling ripemd160 v0.8.0
[INFO] [stderr]    Compiling openssl-sys v0.9.58
[INFO] [stderr]    Compiling ring v0.16.13
[INFO] [stderr]    Compiling scryer-prolog v0.8.127 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling num-traits v0.1.43
[INFO] [stderr]    Compiling ordered-float v0.5.2
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling iovec v0.1.4
[INFO] [stderr]    Compiling dirs-sys v0.3.4
[INFO] [stderr]    Compiling signal-hook-registry v1.2.0
[INFO] [stderr]    Compiling parking_lot_core v0.7.2
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling cpu-time v1.0.0
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling dirs v2.0.2
[INFO] [stderr]    Compiling mio v0.6.21
[INFO] [stderr]    Compiling libsodium-sys v0.2.6
[INFO] [stderr]    Compiling chrono v0.4.11
[INFO] [stderr]    Compiling parking_lot v0.10.2
[INFO] [stderr]    Compiling signal-hook v0.1.13
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling crossterm v0.16.0
[INFO] [stderr]    Compiling string_cache_codegen v0.4.4
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling string_cache v0.7.5
[INFO] [stderr]    Compiling rustyline v6.1.2
[INFO] [stderr]    Compiling git-version-macro v0.3.4
[INFO] [stderr]    Compiling html5ever v0.23.0
[INFO] [stderr]    Compiling git-version v0.3.4
[INFO] [stderr]    Compiling markup5ever v0.8.1
[INFO] [stderr]    Compiling select v0.4.3
[INFO] [stderr]    Compiling sodiumoxide v0.2.6
[INFO] [stderr]    Compiling prolog_parser v0.8.65
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6m 00s
[INFO] running `Command { std: "docker" "inspect" "2ed64d6005a743e4c8f1960ffe850559431df0a7077ec6ad44c12e42cc572e41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ed64d6005a743e4c8f1960ffe850559431df0a7077ec6ad44c12e42cc572e41", kill_on_drop: false }`
[INFO] [stdout] 2ed64d6005a743e4c8f1960ffe850559431df0a7077ec6ad44c12e42cc572e41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 997957a61877e025d0b3ca2a42bba4d130010db51178dd7c29c8f265ef40f22a
[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" "997957a61877e025d0b3ca2a42bba4d130010db51178dd7c29c8f265ef40f22a", kill_on_drop: false }`
[INFO] [stderr]    Compiling scryer-prolog v0.8.127 (/opt/rustwide/workdir)
[INFO] [stdout] warning: associated function is never used: `reset`
[INFO] [stdout]    --> src/machine/mod.rs:310:12
[INFO] [stdout]     |
[INFO] [stdout] 310 |     pub fn reset(&mut self) {
[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 5.79s
[INFO] running `Command { std: "docker" "inspect" "997957a61877e025d0b3ca2a42bba4d130010db51178dd7c29c8f265ef40f22a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "997957a61877e025d0b3ca2a42bba4d130010db51178dd7c29c8f265ef40f22a", kill_on_drop: false }`
[INFO] [stdout] 997957a61877e025d0b3ca2a42bba4d130010db51178dd7c29c8f265ef40f22a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c205945abb54d791607d0595f45bb54669cb235d34b689cc8dd72df54b7f4868
[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" "c205945abb54d791607d0595f45bb54669cb235d34b689cc8dd72df54b7f4868", kill_on_drop: false }`
[INFO] [stderr] warning: associated function is never used: `reset`
[INFO] [stderr]    --> src/machine/mod.rs:310:12
[INFO] [stderr]     |
[INFO] [stderr] 310 |     pub fn reset(&mut self) {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/scryer_prolog-0481404af6fad016
[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" "c205945abb54d791607d0595f45bb54669cb235d34b689cc8dd72df54b7f4868", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c205945abb54d791607d0595f45bb54669cb235d34b689cc8dd72df54b7f4868", kill_on_drop: false }`
[INFO] [stdout] c205945abb54d791607d0595f45bb54669cb235d34b689cc8dd72df54b7f4868