[INFO] fetching crate qc 1.0.0...
[INFO] testing qc-1.0.0 against 1.55.0 for beta-1.56-1
[INFO] extracting crate qc 1.0.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate qc 1.0.0 on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate qc 1.0.0
[INFO] finished tweaking crates.io crate qc 1.0.0
[INFO] tweaked toml for crates.io crate qc 1.0.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate crates.io crate qc 1.0.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ba4951a394adc537aba5f40f6adae46263e66e82c20db28edb2286d201dad1a3
[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" "ba4951a394adc537aba5f40f6adae46263e66e82c20db28edb2286d201dad1a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba4951a394adc537aba5f40f6adae46263e66e82c20db28edb2286d201dad1a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba4951a394adc537aba5f40f6adae46263e66e82c20db28edb2286d201dad1a3", kill_on_drop: false }`
[INFO] [stdout] ba4951a394adc537aba5f40f6adae46263e66e82c20db28edb2286d201dad1a3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8596ee17a3d58b41f6569cf0351a2415d39b91952d3f4044f57b7cce6467598
[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" "e8596ee17a3d58b41f6569cf0351a2415d39b91952d3f4044f57b7cce6467598", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.14
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v0.4.8
[INFO] [stderr]    Compiling proc-macro-error-attr v0.4.8
[INFO] [stderr]    Compiling structopt-derive v0.4.2
[INFO] [stderr]    Compiling structopt v0.3.9
[INFO] [stderr]    Compiling qc v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.90s
[INFO] running `Command { std: "docker" "inspect" "e8596ee17a3d58b41f6569cf0351a2415d39b91952d3f4044f57b7cce6467598", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8596ee17a3d58b41f6569cf0351a2415d39b91952d3f4044f57b7cce6467598", kill_on_drop: false }`
[INFO] [stdout] e8596ee17a3d58b41f6569cf0351a2415d39b91952d3f4044f57b7cce6467598
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "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] 75aebb46c88efe6d7ec108ecca0207290177df014c33c742708af0cc5f495714
[INFO] running `Command { std: "docker" "start" "-a" "75aebb46c88efe6d7ec108ecca0207290177df014c33c742708af0cc5f495714", kill_on_drop: false }`
[INFO] [stderr]    Compiling qc v1.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.28s
[INFO] running `Command { std: "docker" "inspect" "75aebb46c88efe6d7ec108ecca0207290177df014c33c742708af0cc5f495714", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75aebb46c88efe6d7ec108ecca0207290177df014c33c742708af0cc5f495714", kill_on_drop: false }`
[INFO] [stdout] 75aebb46c88efe6d7ec108ecca0207290177df014c33c742708af0cc5f495714
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", 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] 83e3709575ae4957eb476a244409b6cf39fea0636f1aed3b5e79c5bb7a1d2acc
[INFO] running `Command { std: "docker" "start" "-a" "83e3709575ae4957eb476a244409b6cf39fea0636f1aed3b5e79c5bb7a1d2acc", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stdout] running 37 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/qc-b1e3cc8418168e56)
[INFO] [stdout] test tests::add_three_args ... ok
[INFO] [stdout] test tests::add_all_three_args ... ok
[INFO] [stdout] test tests::add_three_mul_two ... ok
[INFO] [stdout] test tests::endian_all_two_args_8_bytes_0 ... ok
[INFO] [stdout] test tests::div_all_two_args ... ok
[INFO] [stdout] test tests::div_two_args ... ok
[INFO] [stdout] test tests::endian_negative_10 ... ok
[INFO] [stdout] test tests::endian_one_arg_8_bytes_0 ... ok
[INFO] [stdout] test tests::endian_one_arg_8_bytes_1 ... ok
[INFO] [stdout] test tests::div_three_args ... ok
[INFO] [stdout] test tests::endian_all_two_args_8_bytes_1 ... ok
[INFO] [stdout] test tests::div_all_three_args ... ok
[INFO] [stdout] test tests::endian_swap_suffix ... ok
[INFO] [stdout] test tests::lex_blank ... ok
[INFO] [stdout] test tests::endian_one_args_0 ... ok
[INFO] [stdout] test tests::endian_0 ... ok
[INFO] [stdout] test tests::endian_single_byte_no_op ... ok
[INFO] [stdout] test tests::lex_args ... ok
[INFO] [stdout] test tests::lex_word ... ok
[INFO] [stdout] test tests::add_underflow ... ok
[INFO] [stdout] test tests::pop_empty ... ok
[INFO] [stdout] test tests::mul_all_two_args ... ok
[INFO] [stdout] test tests::sub_all_three_args ... ok
[INFO] [stdout] test tests::sub_three_args ... ok
[INFO] [stdout] test tests::sub_all_two_args ... ok
[INFO] [stdout] test tests::add_all_two_args ... ok
[INFO] [stdout] test tests::mul_three_args ... ok
[INFO] [stdout] test tests::endian_all_two_args_4_bytes ... ok
[INFO] [stdout] test tests::mul_two_args ... ok
[INFO] [stdout] test tests::add_two_args ... ok
[INFO] [stdout] test tests::endian_single_byte ... ok
[INFO] [stdout] test tests::add_two_mul_two ... ok
[INFO] [stdout] test tests::lex_empty ... ok
[INFO] [stdout] test tests::mul_all_three_args ... ok
[INFO] [stdout] test tests::endian_one_args_1 ... ok
[INFO] [stdout] test tests::endian_one_arg_8_bytes_2 ... ok
[INFO] [stdout] test tests::sub_two_args ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 37 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "83e3709575ae4957eb476a244409b6cf39fea0636f1aed3b5e79c5bb7a1d2acc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "83e3709575ae4957eb476a244409b6cf39fea0636f1aed3b5e79c5bb7a1d2acc", kill_on_drop: false }`
[INFO] [stdout] 83e3709575ae4957eb476a244409b6cf39fea0636f1aed3b5e79c5bb7a1d2acc