[INFO] cloning repository https://github.com/wrightdylan/codecs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wrightdylan/codecs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwrightdylan%2Fcodecs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwrightdylan%2Fcodecs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 72b2a58404c81640a357cf8ecfb8d3f7d20f1c8b
[INFO] testing wrightdylan/codecs against try#9f93af291970322f4f1c6315ccde4d7078201159 for pr-146098-6
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwrightdylan%2Fcodecs" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/wrightdylan/codecs
[INFO] finished tweaking git repo https://github.com/wrightdylan/codecs
[INFO] tweaked toml for git repo https://github.com/wrightdylan/codecs written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/wrightdylan/codecs on toolchain 9f93af291970322f4f1c6315ccde4d7078201159
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/wrightdylan/codecs 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" "+9f93af291970322f4f1c6315ccde4d7078201159" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 486fc8d9a784ce5b0efbdf24145a6177b73cba92acdb3d3ed8176bc84ae5e638
[INFO] running `Command { std: "docker" "start" "-a" "486fc8d9a784ce5b0efbdf24145a6177b73cba92acdb3d3ed8176bc84ae5e638", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "486fc8d9a784ce5b0efbdf24145a6177b73cba92acdb3d3ed8176bc84ae5e638", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "486fc8d9a784ce5b0efbdf24145a6177b73cba92acdb3d3ed8176bc84ae5e638", kill_on_drop: false }`
[INFO] [stdout] 486fc8d9a784ce5b0efbdf24145a6177b73cba92acdb3d3ed8176bc84ae5e638
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9820ad1ed8af280961d61efbc3670e450406f4041a34a4667e9f9815fa3c6dfd
[INFO] running `Command { std: "docker" "start" "-a" "9820ad1ed8af280961d61efbc3670e450406f4041a34a4667e9f9815fa3c6dfd", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitvecs v0.1.1 (https://github.com/wrightdylan/bitvecs.git?tag=0.1.1#454c0622)
[INFO] [stderr]    Compiling codecs v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.78s
[INFO] running `Command { std: "docker" "inspect" "9820ad1ed8af280961d61efbc3670e450406f4041a34a4667e9f9815fa3c6dfd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9820ad1ed8af280961d61efbc3670e450406f4041a34a4667e9f9815fa3c6dfd", kill_on_drop: false }`
[INFO] [stdout] 9820ad1ed8af280961d61efbc3670e450406f4041a34a4667e9f9815fa3c6dfd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c7002fe05b6c829df27d54611ceb669c3f4659ee296700524219705175e24ac7
[INFO] running `Command { std: "docker" "start" "-a" "c7002fe05b6c829df27d54611ceb669c3f4659ee296700524219705175e24ac7", kill_on_drop: false }`
[INFO] [stderr]    Compiling codecs v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.61s
[INFO] running `Command { std: "docker" "inspect" "c7002fe05b6c829df27d54611ceb669c3f4659ee296700524219705175e24ac7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c7002fe05b6c829df27d54611ceb669c3f4659ee296700524219705175e24ac7", kill_on_drop: false }`
[INFO] [stdout] c7002fe05b6c829df27d54611ceb669c3f4659ee296700524219705175e24ac7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2e6bd1434e300f47370997793586a970a60c661e9c05b6117c343d9bf21031a2
[INFO] running `Command { std: "docker" "start" "-a" "2e6bd1434e300f47370997793586a970a60c661e9c05b6117c343d9bf21031a2", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/codecs-7b8f51f86d7508b7)
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests codecs
[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] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stdout] test src/huffman.rs - huffman::encode_to_bitstream (line 316) ... FAILED
[INFO] [stdout] test src/huffman.rs - huffman::decode_from_bitstream (line 364) ... FAILED
[INFO] [stdout] test src/huffman.rs - huffman::easy_encode (line 291) ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/huffman.rs - huffman::encode_to_bitstream (line 316) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `fs`
[INFO] [stdout]   --> src/huffman.rs:326:19
[INFO] [stdout]    |
[INFO] [stdout] 13 | if let Err(err) = fs::write("output.hmc", data) {
[INFO] [stdout]    |                   ^^ use of unresolved module or unlinked crate `fs`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `fs`, use `cargo add fs` to add it to your `Cargo.toml`
[INFO] [stdout] help: consider importing this module
[INFO] [stdout]    |
[INFO] [stdout]  2 + use std::fs;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/huffman.rs - huffman::decode_from_bitstream (line 364) stdout ----
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `fs`
[INFO] [stdout]  --> src/huffman.rs:369:21
[INFO] [stdout]   |
[INFO] [stdout] 8 | let data: Vec<u8> = fs::read(file).expect("File not found.");
[INFO] [stdout]   |                     ^^ use of unresolved module or unlinked crate `fs`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `fs`, use `cargo add fs` to add it to your `Cargo.toml`
[INFO] [stdout] help: consider importing this module
[INFO] [stdout]   |
[INFO] [stdout] 2 + use std::fs;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`)
[INFO] [stdout]  --> src/huffman.rs:370:42
[INFO] [stdout]   |
[INFO] [stdout] 4 | fn main() { #[allow(non_snake_case)] fn _doctest_main_src_huffman_rs_364_0() {
[INFO] [stdout]   |                                      --------------------------------------- this function should return `Result` or `Option` to accept `?`
[INFO] [stdout] ...
[INFO] [stdout] 9 | let output = decode_from_bitstream(&data)?;
[INFO] [stdout]   |                                          ^ cannot use the `?` operator in a function that returns `()`
[INFO] [stdout]   |
[INFO] [stdout] help: consider adding return type
[INFO] [stdout]   |
[INFO] [stdout] 4 ~ fn main() { #[allow(non_snake_case)] fn _doctest_main_src_huffman_rs_364_0() -> Result<(), Box<dyn std::error::Error>> {
[INFO] [stdout] 5 | use codecs::huffman::decode_from_bitstream;
[INFO] [stdout] ...
[INFO] [stdout] 10| println!("{output}");
[INFO] [stdout] 11+     Ok(())
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0277, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0277`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/huffman.rs - huffman::decode_from_bitstream (line 364)
[INFO] [stdout]     src/huffman.rs - huffman::encode_to_bitstream (line 316)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 1 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.28s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "2e6bd1434e300f47370997793586a970a60c661e9c05b6117c343d9bf21031a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e6bd1434e300f47370997793586a970a60c661e9c05b6117c343d9bf21031a2", kill_on_drop: false }`
[INFO] [stdout] 2e6bd1434e300f47370997793586a970a60c661e9c05b6117c343d9bf21031a2
