[INFO] fetching crate flatzinc 0.3.15...
[INFO] testing flatzinc-0.3.15 against 1.49.0 for beta-1.50-1
[INFO] extracting crate flatzinc 0.3.15 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate flatzinc 0.3.15 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 flatzinc 0.3.15
[INFO] finished tweaking crates.io crate flatzinc 0.3.15
[INFO] tweaked toml for crates.io crate flatzinc 0.3.15 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate flatzinc 0.3.15 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] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2f3d7f9787e2da0ebd6de6a6e3293de110a4388a594bcd8c062abfcfe7f2f0a4
[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" "2f3d7f9787e2da0ebd6de6a6e3293de110a4388a594bcd8c062abfcfe7f2f0a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2f3d7f9787e2da0ebd6de6a6e3293de110a4388a594bcd8c062abfcfe7f2f0a4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f3d7f9787e2da0ebd6de6a6e3293de110a4388a594bcd8c062abfcfe7f2f0a4", kill_on_drop: false }`
[INFO] [stdout] 2f3d7f9787e2da0ebd6de6a6e3293de110a4388a594bcd8c062abfcfe7f2f0a4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1fe92d6d4d662b32630bb1422546a330003ac4143de78fe624b65728443d6fe9
[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" "1fe92d6d4d662b32630bb1422546a330003ac4143de78fe624b65728443d6fe9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.76
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling thread_local v0.3.4
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling chrono v0.4.15
[INFO] [stderr]    Compiling nom v5.1.2
[INFO] [stderr]    Compiling stderrlog v0.4.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.9
[INFO] [stderr]    Compiling structopt v0.3.16
[INFO] [stderr]    Compiling flatzinc v0.3.15 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.57s
[INFO] running `Command { std: "docker" "inspect" "1fe92d6d4d662b32630bb1422546a330003ac4143de78fe624b65728443d6fe9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1fe92d6d4d662b32630bb1422546a330003ac4143de78fe624b65728443d6fe9", kill_on_drop: false }`
[INFO] [stdout] 1fe92d6d4d662b32630bb1422546a330003ac4143de78fe624b65728443d6fe9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c298b9c7fe1fe22186d255363545eb835cf1e54fabdc677915e186ee9984fb9
[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" "6c298b9c7fe1fe22186d255363545eb835cf1e54fabdc677915e186ee9984fb9", kill_on_drop: false }`
[INFO] [stderr]    Compiling flatzinc v0.3.15 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 5.04s
[INFO] running `Command { std: "docker" "inspect" "6c298b9c7fe1fe22186d255363545eb835cf1e54fabdc677915e186ee9984fb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c298b9c7fe1fe22186d255363545eb835cf1e54fabdc677915e186ee9984fb9", kill_on_drop: false }`
[INFO] [stdout] 6c298b9c7fe1fe22186d255363545eb835cf1e54fabdc677915e186ee9984fb9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e7e08614d7a4407c64b97ef1a3a7b7870b02a2ef27d608ee395c24bb5bb14f66
[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" "e7e08614d7a4407c64b97ef1a3a7b7870b02a2ef27d608ee395c24bb5bb14f66", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.54s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/flatzinc-1baec964cd8ef898
[INFO] [stdout] 
[INFO] [stdout] running 26 tests
[INFO] [stdout] test pred_par_type_2 ... ok
[INFO] [stdout] test test_basic_pred_par_type ... ok
[INFO] [stdout] test test_expr ... ok
[INFO] [stdout] test test_constraint_item_4 ... ok
[INFO] [stdout] test test_constraint_item_2 ... ok
[INFO] [stdout] test test_hex ... ok
[INFO] [stdout] test test_oct ... ok
[INFO] [stdout] test test_pred_par_type ... ok
[INFO] [stdout] test test_par_type ... ok
[INFO] [stdout] test test_constraint_item_3 ... ok
[INFO] [stdout] test test_var_decl_item_1 ... ok
[INFO] [stdout] test test_var_decl_item_3 ... ok
[INFO] [stdout] test test_float ... ok
[INFO] [stdout] test test_var_decl_item_4 ... ok
[INFO] [stdout] test test_comment ... ok
[INFO] [stdout] test test_par_decl_item_1 ... ok
[INFO] [stdout] test test_constraint_item ... ok
[INFO] [stdout] test test_pred_par_type_2 ... ok
[INFO] [stdout] test test_pred_par_type_3 ... ok
[INFO] [stdout] test test_pred_par_type_ident_pair ... ok
[INFO] [stdout] test test_predicate_item ... ok
[INFO] [stdout] test test_solve_item ... ok
[INFO] [stdout] test test_string_lit ... ok
[INFO] [stdout] test test_var_decl_item_2 ... ok
[INFO] [stderr]    Doc-tests flatzinc
[INFO] [stdout] test test_par_decl_item_2 ... ok
[INFO] [stdout] test test_predicate_item_2 ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 26 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] running `Command { std: "docker" "inspect" "e7e08614d7a4407c64b97ef1a3a7b7870b02a2ef27d608ee395c24bb5bb14f66", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e7e08614d7a4407c64b97ef1a3a7b7870b02a2ef27d608ee395c24bb5bb14f66", kill_on_drop: false }`
[INFO] [stdout] e7e08614d7a4407c64b97ef1a3a7b7870b02a2ef27d608ee395c24bb5bb14f66