[INFO] crate bitterlemon 0.2.2 is already in cache
[INFO] testing bitterlemon-0.2.2 against beta-2020-07-24 for beta-1.46-1
[INFO] extracting crate bitterlemon 0.2.2 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate bitterlemon 0.2.2 on toolchain beta-2020-07-24
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bitterlemon 0.2.2
[INFO] finished tweaking crates.io crate bitterlemon 0.2.2
[INFO] tweaked toml for crates.io crate bitterlemon 0.2.2 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a8fae88791b695da90d7965f8412a0c2dd35992719695cb84d63bb1dea1be54b
[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" "a8fae88791b695da90d7965f8412a0c2dd35992719695cb84d63bb1dea1be54b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a8fae88791b695da90d7965f8412a0c2dd35992719695cb84d63bb1dea1be54b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8fae88791b695da90d7965f8412a0c2dd35992719695cb84d63bb1dea1be54b", kill_on_drop: false }`
[INFO] [stdout] a8fae88791b695da90d7965f8412a0c2dd35992719695cb84d63bb1dea1be54b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d949503af683eaa0a1d2318e9a4c050c11ec5106c032ac8ac12eb8b2be8db4bd
[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" "d949503af683eaa0a1d2318e9a4c050c11ec5106c032ac8ac12eb8b2be8db4bd", kill_on_drop: false }`
[INFO] [stderr]    Compiling arrayvec v0.5.1
[INFO] [stderr]    Compiling bitterlemon v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/encode.rs:307:7
[INFO] [stdout]     |
[INFO] [stdout] 307 |         let mut head_run = self.get_mut(*ptr as usize).unwrap();
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` 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 1.20s
[INFO] running `Command { std: "docker" "inspect" "d949503af683eaa0a1d2318e9a4c050c11ec5106c032ac8ac12eb8b2be8db4bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d949503af683eaa0a1d2318e9a4c050c11ec5106c032ac8ac12eb8b2be8db4bd", kill_on_drop: false }`
[INFO] [stdout] d949503af683eaa0a1d2318e9a4c050c11ec5106c032ac8ac12eb8b2be8db4bd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a72e7b57dd3449bcf423075b1f1f6578f74fd62e3b8748f23cfc46e659cde4f
[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" "7a72e7b57dd3449bcf423075b1f1f6578f74fd62e3b8748f23cfc46e659cde4f", kill_on_drop: false }`
[INFO] [stderr]    Compiling random v0.12.2
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/encode.rs:307:7
[INFO] [stdout]     |
[INFO] [stdout] 307 |         let mut head_run = self.get_mut(*ptr as usize).unwrap();
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling bitterlemon v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/encode.rs:307:7
[INFO] [stdout]     |
[INFO] [stdout] 307 |         let mut head_run = self.get_mut(*ptr as usize).unwrap();
[INFO] [stdout]     |             ----^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` 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 2.16s
[INFO] running `Command { std: "docker" "inspect" "7a72e7b57dd3449bcf423075b1f1f6578f74fd62e3b8748f23cfc46e659cde4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a72e7b57dd3449bcf423075b1f1f6578f74fd62e3b8748f23cfc46e659cde4f", kill_on_drop: false }`
[INFO] [stdout] 7a72e7b57dd3449bcf423075b1f1f6578f74fd62e3b8748f23cfc46e659cde4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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=warn" "-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d6fa2428f8ecac618802aca1f2eb7fdd4e59ff8b2af90cf8338536be66b22a6d
[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" "d6fa2428f8ecac618802aca1f2eb7fdd4e59ff8b2af90cf8338536be66b22a6d", kill_on_drop: false }`
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/encode.rs:307:7
[INFO] [stderr]     |
[INFO] [stderr] 307 |         let mut head_run = self.get_mut(*ptr as usize).unwrap();
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/encode.rs:307:7
[INFO] [stderr]     |
[INFO] [stderr] 307 |         let mut head_run = self.get_mut(*ptr as usize).unwrap();
[INFO] [stderr]     |             ----^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/bitterlemon-7119611501cc5ba8
[INFO] [stdout] 
[INFO] [stdout] running 33 tests
[INFO] [stdout] test encode::run_holding_extensions::enough_to_overflow_a_frame_to_2_post_header_bytes ... ok
[INFO] [stdout] test decode::test_decoder::error_on_frame_cutoff ... ok
[INFO] [stdout] test encode::run_holding_extensions::single_clear ... ok
[INFO] [stdout] test encode::run_holding_extensions::empty ... ok
[INFO] [stdout] test decode::test_decoder::empty_input ... ok
[INFO] [stdout] test decode::test_decoder::next_none_idempotence ... ok
[INFO] [stdout] test decode::test_decoder::single_run_set ... ok
[INFO] [stdout] test decode::test_decoder::single_run_clear ... ok
[INFO] [stdout] test encode::run_holding_extensions::single_set ... ok
[INFO] [stdout] test decode::test_decoder::alternate_runs_frames ... ok
[INFO] [stdout] test decode::test_decoder::single_byte_frame ... ok
[INFO] [stdout] test decode::test_decoder::full_byte_frame ... ok
[INFO] [stdout] test encode::run_holding_extensions::can_pack_3_runs_into_a_single_frame_byte ... ok
[INFO] [stdout] test encode::test_run_builder::next_none_idempotence ... ok
[INFO] [stdout] test encode::test_run_builder::runs ... ok
[INFO] [stdout] test encode::test_runs::size ... ok
[INFO] [stdout] test decode::test_decoder::two_byte_frame ... ok
[INFO] [stdout] test encode::test_with_frames::empty_frame ... ok
[INFO] [stdout] test encode::test_with_frames::one_run ... ok
[INFO] [stdout] test encode::test_with_frames::next_none_idempotence ... ok
[INFO] [stdout] test encode::test_with_frames::byte_nearly_filled ... ok
[INFO] [stdout] test encode::test_with_frames::undo_single_byte_frame ... ok
[INFO] [stdout] test encode::test_with_frames::abandon_frame_on_long_runs ... ok
[INFO] [stdout] test encode::test_with_frames::conditional_on_padding ... ok
[INFO] [stdout] test encode::test_with_frames::two_bytes ... ok
[INFO] [stdout] test encode::test_with_frames::two_runs ... ok
[INFO] [stdout] test encode::test_with_frames::never_create_frame_for_longer_runs ... ok
[INFO] [stdout] test encode::test_runs::size_mut ... ok
[INFO] [stdout] test encode::test_with_frames::one_byte_frame_filled ... ok
[INFO] [stdout] test encode::test_with_frames::avoid_frame_overflow ... ok
[INFO] [stdout] test test_encode_round_trip::single_frame ... ok
[INFO] [stdout] test test_encode_round_trip::single_run ... ok
[INFO] [stdout] test test_encode_round_trip::random_kilobyte ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 33 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests bitterlemon
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 5) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d6fa2428f8ecac618802aca1f2eb7fdd4e59ff8b2af90cf8338536be66b22a6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6fa2428f8ecac618802aca1f2eb7fdd4e59ff8b2af90cf8338536be66b22a6d", kill_on_drop: false }`
[INFO] [stdout] d6fa2428f8ecac618802aca1f2eb7fdd4e59ff8b2af90cf8338536be66b22a6d