[INFO] updating cached repository https://github.com/zhuowei/Brainlift
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1248ea92b3516d848b7bb77a247f1026dcfcc3e7
[INFO] testing zhuowei/Brainlift against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzhuowei%2FBrainlift" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zhuowei/Brainlift on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zhuowei/Brainlift
[INFO] finished tweaking git repo https://github.com/zhuowei/Brainlift
[INFO] tweaked toml for git repo https://github.com/zhuowei/Brainlift written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/zhuowei/Brainlift already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2ae66bd8a460a36800eae830745bcd32b9b73718033e4d2d31ae15f3b6362c09
[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" "2ae66bd8a460a36800eae830745bcd32b9b73718033e4d2d31ae15f3b6362c09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2ae66bd8a460a36800eae830745bcd32b9b73718033e4d2d31ae15f3b6362c09", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ae66bd8a460a36800eae830745bcd32b9b73718033e4d2d31ae15f3b6362c09", kill_on_drop: false }`
[INFO] [stdout] 2ae66bd8a460a36800eae830745bcd32b9b73718033e4d2d31ae15f3b6362c09
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7327835e7478b5baf2ce5ef9e0a169a653eccc91d91ded6d150bc157bcf45ccf
[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" "7327835e7478b5baf2ce5ef9e0a169a653eccc91d91ded6d150bc157bcf45ccf", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.33
[INFO] [stderr]    Compiling libc v0.2.53
[INFO] [stderr]    Compiling cc v1.0.35
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling itoa v0.4.3
[INFO] [stderr]    Compiling cranelift-entity v0.37.0
[INFO] [stderr]    Compiling ucd-util v0.1.3
[INFO] [stderr]    Compiling unicode-width v0.1.5
[INFO] [stderr]    Compiling utf8-ranges v1.0.2
[INFO] [stderr]    Compiling plain v0.2.3
[INFO] [stderr]    Compiling vec_map v0.8.1
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling humantime v1.2.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.29
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling string-interner v0.6.3
[INFO] [stderr]    Compiling regex-syntax v0.6.6
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.37.0
[INFO] [stderr]    Compiling cranelift-bforest v0.37.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling backtrace v0.3.15
[INFO] [stderr]    Compiling quote v0.6.12
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling serde_json v1.0.39
[INFO] [stderr]    Compiling scroll v0.9.2
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling target-lexicon v0.4.0
[INFO] [stderr]    Compiling regex v1.1.6
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling env_logger v0.6.1
[INFO] [stderr]    Compiling scroll_derive v0.9.5
[INFO] [stderr]    Compiling structopt-derive v0.2.15
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling structopt v0.2.15
[INFO] [stderr]    Compiling goblin v0.0.23
[INFO] [stderr]    Compiling goblin v0.0.22
[INFO] [stderr]    Compiling cranelift-codegen v0.37.0
[INFO] [stderr]    Compiling faerie v0.10.1
[INFO] [stderr]    Compiling cranelift-module v0.37.0
[INFO] [stderr]    Compiling cranelift-frontend v0.37.0
[INFO] [stderr]    Compiling cranelift-faerie v0.37.0
[INFO] [stderr]    Compiling brainlift v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:142:5
[INFO] [stdout]     |
[INFO] [stdout] 142 |     shared_builder.enable("is_pic");
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:145:5
[INFO] [stdout]     |
[INFO] [stdout] 145 |     shared_builder.set("probestack_enabled", "false");
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `BF_CELLS_COUNT` should have a snake case name
[INFO] [stdout]    --> src/main.rs:209:13
[INFO] [stdout]     |
[INFO] [stdout] 209 |         let BF_CELLS_COUNT = 30000;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `bf_cells_count`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 55s
[INFO] running `Command { std: "docker" "inspect" "7327835e7478b5baf2ce5ef9e0a169a653eccc91d91ded6d150bc157bcf45ccf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7327835e7478b5baf2ce5ef9e0a169a653eccc91d91ded6d150bc157bcf45ccf", kill_on_drop: false }`
[INFO] [stdout] 7327835e7478b5baf2ce5ef9e0a169a653eccc91d91ded6d150bc157bcf45ccf
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eed7848b1d00a8d8a954c7f29995a110cd98faed87e9aa8c7587b5ae258c7998
[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" "eed7848b1d00a8d8a954c7f29995a110cd98faed87e9aa8c7587b5ae258c7998", kill_on_drop: false }`
[INFO] [stderr]    Compiling brainlift v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:142:5
[INFO] [stdout]     |
[INFO] [stdout] 142 |     shared_builder.enable("is_pic");
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:145:5
[INFO] [stdout]     |
[INFO] [stdout] 145 |     shared_builder.set("probestack_enabled", "false");
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `BF_CELLS_COUNT` should have a snake case name
[INFO] [stdout]    --> src/main.rs:209:13
[INFO] [stdout]     |
[INFO] [stdout] 209 |         let BF_CELLS_COUNT = 30000;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `bf_cells_count`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "eed7848b1d00a8d8a954c7f29995a110cd98faed87e9aa8c7587b5ae258c7998", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eed7848b1d00a8d8a954c7f29995a110cd98faed87e9aa8c7587b5ae258c7998", kill_on_drop: false }`
[INFO] [stdout] eed7848b1d00a8d8a954c7f29995a110cd98faed87e9aa8c7587b5ae258c7998
[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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d177917dfca99b015f554cfc93b1ef333b6360e93ee43cc4d0ce6914e0c3bcc7
[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" "d177917dfca99b015f554cfc93b1ef333b6360e93ee43cc4d0ce6914e0c3bcc7", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stdout] running 0 tests
[INFO] [stderr]    --> src/main.rs:142:5
[INFO] [stdout] 
[INFO] [stderr]     |
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stderr] 142 |     shared_builder.enable("is_pic");
[INFO] [stdout] 
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:145:5
[INFO] [stderr]     |
[INFO] [stderr] 145 |     shared_builder.set("probestack_enabled", "false");
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variable `BF_CELLS_COUNT` should have a snake case name
[INFO] [stderr]    --> src/main.rs:209:13
[INFO] [stderr]     |
[INFO] [stderr] 209 |         let BF_CELLS_COUNT = 30000;
[INFO] [stderr]     |             ^^^^^^^^^^^^^^ help: convert the identifier to snake case: `bf_cells_count`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/brainlift-49055ad3bb893b5d
[INFO] running `Command { std: "docker" "inspect" "d177917dfca99b015f554cfc93b1ef333b6360e93ee43cc4d0ce6914e0c3bcc7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d177917dfca99b015f554cfc93b1ef333b6360e93ee43cc4d0ce6914e0c3bcc7", kill_on_drop: false }`
[INFO] [stdout] d177917dfca99b015f554cfc93b1ef333b6360e93ee43cc4d0ce6914e0c3bcc7