[INFO] cloning repository https://github.com/krgn/bufr
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/krgn/bufr" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrgn%2Fbufr", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrgn%2Fbufr'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3c6858cea0338ed2b253bdd668a23d21defb75f8
[INFO] testing krgn/bufr against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkrgn%2Fbufr" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/krgn/bufr on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/krgn/bufr
[INFO] finished tweaking git repo https://github.com/krgn/bufr
[INFO] tweaked toml for git repo https://github.com/krgn/bufr written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/krgn/bufr already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--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-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ba2b0881b16d2d09322b54a0f37e79cba5b82343bb247c123b34d088b29d3fef
[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" "ba2b0881b16d2d09322b54a0f37e79cba5b82343bb247c123b34d088b29d3fef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ba2b0881b16d2d09322b54a0f37e79cba5b82343bb247c123b34d088b29d3fef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ba2b0881b16d2d09322b54a0f37e79cba5b82343bb247c123b34d088b29d3fef", kill_on_drop: false }`
[INFO] [stdout] ba2b0881b16d2d09322b54a0f37e79cba5b82343bb247c123b34d088b29d3fef
[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=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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eef262c0b0463739acb56bfb8fa212f761da6a2e8e604c900206656ede2d620a
[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" "eef262c0b0463739acb56bfb8fa212f761da6a2e8e604c900206656ede2d620a", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v0.1.1
[INFO] [stderr]    Compiling rand_core v0.3.0
[INFO] [stderr]    Compiling cc v1.0.28
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling pest v1.0.6
[INFO] [stderr]    Compiling cast v0.2.2
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]    Compiling lazy_static v1.1.0
[INFO] [stderr]    Compiling regex-syntax v0.6.4
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling humantime v1.2.0
[INFO] [stderr]    Compiling itertools v0.7.11
[INFO] [stderr]    Compiling atty v0.2.11
[INFO] [stderr]    Compiling num_cpus v1.9.0
[INFO] [stderr]    Compiling serde_json v1.0.35
[INFO] [stderr]    Compiling rand v0.4.5
[INFO] [stderr]    Compiling itertools-num v0.1.3
[INFO] [stderr]    Compiling syn v0.15.24
[INFO] [stderr]    Compiling clap v2.32.0
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_os v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.4
[INFO] [stderr]    Compiling thread_local v0.3.6
[INFO] [stderr]    Compiling criterion-stats v0.3.0
[INFO] [stderr]    Compiling aho-corasick v0.6.9
[INFO] [stderr]    Compiling csv-core v0.1.5
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling csv v1.0.5
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling pest_derive v1.0.8
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling env_logger v0.5.13
[INFO] [stderr]    Compiling quickcheck v0.8.0
[INFO] [stderr]    Compiling serde_derive v1.0.84
[INFO] [stderr]    Compiling handlebars v1.0.5
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling criterion-plot v0.2.7
[INFO] [stderr]    Compiling criterion v0.2.7
[INFO] [stderr]    Compiling bufr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `result_map_or_else` has been stable since 1.41.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(result_map_or_else)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 40.12s
[INFO] running `Command { std: "docker" "inspect" "eef262c0b0463739acb56bfb8fa212f761da6a2e8e604c900206656ede2d620a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eef262c0b0463739acb56bfb8fa212f761da6a2e8e604c900206656ede2d620a", kill_on_drop: false }`
[INFO] [stdout] eef262c0b0463739acb56bfb8fa212f761da6a2e8e604c900206656ede2d620a
[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=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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab129a24b8e724c0a137a5ab5c3bbe632777ecd2ca921a85862cfc7e6bef1348
[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" "ab129a24b8e724c0a137a5ab5c3bbe632777ecd2ca921a85862cfc7e6bef1348", kill_on_drop: false }`
[INFO] [stdout] warning: the feature `result_map_or_else` has been stable since 1.41.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(result_map_or_else)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling bufr v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `result_map_or_else` has been stable since 1.41.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/lib.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(result_map_or_else)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` 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 1.18s
[INFO] running `Command { std: "docker" "inspect" "ab129a24b8e724c0a137a5ab5c3bbe632777ecd2ca921a85862cfc7e6bef1348", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab129a24b8e724c0a137a5ab5c3bbe632777ecd2ca921a85862cfc7e6bef1348", kill_on_drop: false }`
[INFO] [stdout] ab129a24b8e724c0a137a5ab5c3bbe632777ecd2ca921a85862cfc7e6bef1348
[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=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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "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] 473a63e1092cc66f85730db817840bfda122b4bf9daeb05880afa5274fb677cb
[INFO] running `Command { std: "docker" "start" "-a" "473a63e1092cc66f85730db817840bfda122b4bf9daeb05880afa5274fb677cb", kill_on_drop: false }`
[INFO] [stderr] warning: the feature `result_map_or_else` has been stable since 1.41.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(result_map_or_else)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `result_map_or_else` has been stable since 1.41.0 and no longer requires an attribute to enable
[INFO] [stderr]  --> src/lib.rs:2:12
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(result_map_or_else)]
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(stable_features)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/bufr-54df26aab909a3b3)
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test rawbuf::bufr::tests::mgr_test ... ok
[INFO] [stdout] test traited::mgr::tests::basic_queue_test ... ok
[INFO] [stdout] test traited::mgr::tests::basic_locked_vec_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/arc_mutex_vec-fe7c7fca96ae51e8)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/mspc_queue-f0b086b70f494e35)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bufr
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "473a63e1092cc66f85730db817840bfda122b4bf9daeb05880afa5274fb677cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "473a63e1092cc66f85730db817840bfda122b4bf9daeb05880afa5274fb677cb", kill_on_drop: false }`
[INFO] [stdout] 473a63e1092cc66f85730db817840bfda122b4bf9daeb05880afa5274fb677cb