[INFO] fetching crate codec 0.0.7...
[INFO] testing codec-0.0.7 against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759
[INFO] extracting crate codec 0.0.7 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate codec 0.0.7
[INFO] finished tweaking crates.io crate codec 0.0.7
[INFO] tweaked toml for crates.io crate codec 0.0.7 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate codec 0.0.7 on toolchain d98a5da813da67eb189387b8ccfb73cf481275d8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate codec 0.0.7 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded heapless v0.9.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c6d1b7c4b539f6a2f6c60505a9ab9e2da80668cad1f9746f032a3f3f77c237ad
[INFO] running `Command { std: "docker" "start" "-a" "c6d1b7c4b539f6a2f6c60505a9ab9e2da80668cad1f9746f032a3f3f77c237ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c6d1b7c4b539f6a2f6c60505a9ab9e2da80668cad1f9746f032a3f3f77c237ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6d1b7c4b539f6a2f6c60505a9ab9e2da80668cad1f9746f032a3f3f77c237ad", kill_on_drop: false }`
[INFO] [stdout] c6d1b7c4b539f6a2f6c60505a9ab9e2da80668cad1f9746f032a3f3f77c237ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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 -Copt-level=3" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 732e45255675591c98562261bde23feb8a5f0fa0462deec063f71ba18b2dbf46
[INFO] running `Command { std: "docker" "start" "-a" "732e45255675591c98562261bde23feb8a5f0fa0462deec063f71ba18b2dbf46", kill_on_drop: false }`
[INFO] [stderr]    Compiling heapless v0.9.1
[INFO] [stderr]    Compiling hash32 v0.3.1
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling codec v0.0.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.65s
[INFO] running `Command { std: "docker" "inspect" "732e45255675591c98562261bde23feb8a5f0fa0462deec063f71ba18b2dbf46", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "732e45255675591c98562261bde23feb8a5f0fa0462deec063f71ba18b2dbf46", kill_on_drop: false }`
[INFO] [stdout] 732e45255675591c98562261bde23feb8a5f0fa0462deec063f71ba18b2dbf46
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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 -Copt-level=3" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb2388c5a0d3fcd7e6ae2c80fb33e2933c5ce97000c1caec313789a02fcf21f5
[INFO] running `Command { std: "docker" "start" "-a" "fb2388c5a0d3fcd7e6ae2c80fb33e2933c5ce97000c1caec313789a02fcf21f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling codec v0.0.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "fb2388c5a0d3fcd7e6ae2c80fb33e2933c5ce97000c1caec313789a02fcf21f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb2388c5a0d3fcd7e6ae2c80fb33e2933c5ce97000c1caec313789a02fcf21f5", kill_on_drop: false }`
[INFO] [stdout] fb2388c5a0d3fcd7e6ae2c80fb33e2933c5ce97000c1caec313789a02fcf21f5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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 -Copt-level=3" "-e" "RUSTDOCFLAGS=--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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] a4ace9aa7b639827e3da7dece613e2f98339707b90423a1c85ff40d9d5d4acb9
[INFO] running `Command { std: "docker" "start" "-a" "a4ace9aa7b639827e3da7dece613e2f98339707b90423a1c85ff40d9d5d4acb9", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/codec-2f7df747a2d135a6)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests codec
[INFO] [stdout] running 14 tests
[INFO] [stdout] test buffers::tests::rolling_buffer_original_buffer_restored_on_failed_read ... ok
[INFO] [stdout] test buffers::tests::rolling_buffer_read_batches ... ok
[INFO] [stdout] test buffers::tests::rolling_buffer_read_larger_than_buffer ... ok
[INFO] [stdout] test buffers::tests::rolling_buffer_read_singles ... ok
[INFO] [stdout] test buffers::tests::rolling_buffer_write_batches ... ok
[INFO] [stdout] test buffers::tests::rolling_buffer_write_singles ... ok
[INFO] [stdout] test buffers::tests::static_buffer_original_buffer_restored_on_failed_read ... ok
[INFO] [stdout] test buffers::tests::static_buffer_read_batches ... ok
[INFO] [stdout] test buffers::tests::static_buffer_read_larger_than_buffer ... ok
[INFO] [stdout] test buffers::tests::static_buffer_read_singles ... ok
[INFO] [stdout] test buffers::tests::static_buffer_reset ... ok
[INFO] [stdout] test buffers::tests::static_buffer_write_batches ... ok
[INFO] [stdout] test buffers::tests::static_buffer_write_singles ... ok
[INFO] [stdout] test buffers::tests::rolling_buffer_reset ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 14 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 5) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 5) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `StringContext`
[INFO] [stdout]   --> src/lib.rs:21:33
[INFO] [stdout]    |
[INFO] [stdout] 19 |                 str.encode(buf, StringContext::U8Len)
[INFO] [stdout]    |                                 ^^^^^^^^^^^^^
[INFO] [stdout]    |                                 |
[INFO] [stdout]    |                                 use of undeclared type `StringContext`
[INFO] [stdout]    |                                 help: an enum with a similar name exists: `SizeContext`
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `StringContext`
[INFO] [stdout]   --> src/lib.rs:37:53
[INFO] [stdout]    |
[INFO] [stdout] 35 |                 let str = String::<30>::decode(buf, StringContext::U8Len)?;
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^
[INFO] [stdout]    |                                                     |
[INFO] [stdout]    |                                                     use of undeclared type `StringContext`
[INFO] [stdout]    |                                                     help: an enum with a similar name exists: `SizeContext`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 5)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.17s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "a4ace9aa7b639827e3da7dece613e2f98339707b90423a1c85ff40d9d5d4acb9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4ace9aa7b639827e3da7dece613e2f98339707b90423a1c85ff40d9d5d4acb9", kill_on_drop: false }`
[INFO] [stdout] a4ace9aa7b639827e3da7dece613e2f98339707b90423a1c85ff40d9d5d4acb9
