[INFO] fetching crate bitterlemon 0.2.2...
[INFO] testing bitterlemon-0.2.2 against try#03a1ea71b075ab964b5278bc6e74cd6c52c36ee0 for pr-74409
[INFO] extracting crate bitterlemon 0.2.2 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate bitterlemon 0.2.2 on toolchain 03a1ea71b075ab964b5278bc6e74cd6c52c36ee0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "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-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "fetch" "--locked" "--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" "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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "metadata" "--no-deps" "--format-version=1", 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] cbdcdc328e0da43221b02036593d6365e270449322dd145f6f1dd4329bff8834
[INFO] running `Command { std: "docker" "start" "-a" "cbdcdc328e0da43221b02036593d6365e270449322dd145f6f1dd4329bff8834", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cbdcdc328e0da43221b02036593d6365e270449322dd145f6f1dd4329bff8834", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cbdcdc328e0da43221b02036593d6365e270449322dd145f6f1dd4329bff8834", kill_on_drop: false }`
[INFO] [stdout] cbdcdc328e0da43221b02036593d6365e270449322dd145f6f1dd4329bff8834
[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" "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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2b0f5b95e049fa6c5377954ca04bc1cd2ba4763f2a6c9f85b84177a71fee9736
[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" "2b0f5b95e049fa6c5377954ca04bc1cd2ba4763f2a6c9f85b84177a71fee9736", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 1.87s
[INFO] running `Command { std: "docker" "inspect" "2b0f5b95e049fa6c5377954ca04bc1cd2ba4763f2a6c9f85b84177a71fee9736", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2b0f5b95e049fa6c5377954ca04bc1cd2ba4763f2a6c9f85b84177a71fee9736", kill_on_drop: false }`
[INFO] [stdout] 2b0f5b95e049fa6c5377954ca04bc1cd2ba4763f2a6c9f85b84177a71fee9736
[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" "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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 711f179ce204a5a4c24b477fcf41f89129fd3c25cc189b6329cfb04c24c66e06
[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" "711f179ce204a5a4c24b477fcf41f89129fd3c25cc189b6329cfb04c24c66e06", 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 1.36s
[INFO] running `Command { std: "docker" "inspect" "711f179ce204a5a4c24b477fcf41f89129fd3c25cc189b6329cfb04c24c66e06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "711f179ce204a5a4c24b477fcf41f89129fd3c25cc189b6329cfb04c24c66e06", kill_on_drop: false }`
[INFO] [stdout] 711f179ce204a5a4c24b477fcf41f89129fd3c25cc189b6329cfb04c24c66e06
[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" "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@sha256:38e1b949b06cde1964af550a6e548bd9b2b2ea170003ae122f8fc0886596cc07" "/opt/rustwide/cargo-home/bin/cargo" "+03a1ea71b075ab964b5278bc6e74cd6c52c36ee0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a904de27e05414c43ec4b2c3c65410dbd4bc9bbe0fd7fd4ec600d1db39d1b18c
[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" "a904de27e05414c43ec4b2c3c65410dbd4bc9bbe0fd7fd4ec600d1db39d1b18c", 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 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/bitterlemon-e2b800815bed63b3
[INFO] [stdout] running 33 tests
[INFO] [stdout] test decode::test_decoder::error_on_frame_cutoff ... 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::run_holding_extensions::empty ... ok
[INFO] [stdout] test encode::run_holding_extensions::single_clear ... ok
[INFO] [stdout] test encode::run_holding_extensions::single_set ... 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 encode::test_runs::size_mut ... ok
[INFO] [stdout] test encode::test_with_frames::never_create_frame_for_longer_runs ... ok
[INFO] [stdout] test encode::test_with_frames::empty_frame ... ok
[INFO] [stdout] test encode::test_with_frames::conditional_on_padding ... ok
[INFO] [stdout] test encode::test_with_frames::byte_nearly_filled ... ok
[INFO] [stdout] test encode::test_with_frames::abandon_frame_on_long_runs ... ok
[INFO] [stdout] test decode::test_decoder::two_byte_frame ... ok
[INFO] [stdout] test decode::test_decoder::single_byte_frame ... ok
[INFO] [stdout] test decode::test_decoder::next_none_idempotence ... ok
[INFO] [stdout] test decode::test_decoder::single_run_set ... ok
[INFO] [stdout] test encode::test_with_frames::avoid_frame_overflow ... ok
[INFO] [stdout] test decode::test_decoder::single_run_clear ... ok
[INFO] [stdout] test encode::test_with_frames::two_bytes ... ok
[INFO] [stdout] test encode::test_with_frames::one_run ... ok
[INFO] [stdout] test encode::test_with_frames::undo_single_byte_frame ... ok
[INFO] [stdout] test encode::test_with_frames::one_byte_frame_filled ... ok
[INFO] [stdout] test encode::test_with_frames::next_none_idempotence ... ok
[INFO] [stdout] test encode::run_holding_extensions::enough_to_overflow_a_frame_to_2_post_header_bytes ... ok
[INFO] [stdout] test decode::test_decoder::empty_input ... ok
[INFO] [stdout] test test_encode_round_trip::single_frame ... ok
[INFO] [stdout] test encode::test_with_frames::two_runs ... ok
[INFO] [stdout] test test_encode_round_trip::single_run ... ok
[INFO] [stdout] test decode::test_decoder::alternate_runs_frames ... ok
[INFO] [stderr]    Doc-tests bitterlemon
[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] [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" "a904de27e05414c43ec4b2c3c65410dbd4bc9bbe0fd7fd4ec600d1db39d1b18c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a904de27e05414c43ec4b2c3c65410dbd4bc9bbe0fd7fd4ec600d1db39d1b18c", kill_on_drop: false }`
[INFO] [stdout] a904de27e05414c43ec4b2c3c65410dbd4bc9bbe0fd7fd4ec600d1db39d1b18c