[INFO] cloning repository https://github.com/favilo/kompression
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/favilo/kompression" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffavilo%2Fkompression", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffavilo%2Fkompression'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 363eb2c825e35e058cc23426c19779e68312b30d
[INFO] testing favilo/kompression against try#ece70b22820429ebf0c6d388c32356a14c58fc2f for pr-107251
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffavilo%2Fkompression" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/favilo/kompression on toolchain ece70b22820429ebf0c6d388c32356a14c58fc2f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ece70b22820429ebf0c6d388c32356a14c58fc2f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/favilo/kompression
[INFO] finished tweaking git repo https://github.com/favilo/kompression
[INFO] tweaked toml for git repo https://github.com/favilo/kompression written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/favilo/kompression 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" "+ece70b22820429ebf0c6d388c32356a14c58fc2f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:3d532c2baa59a8a48e45c3be7eb049f77ac5a58a7a6514a58a8e878df1c3d03d" "/opt/rustwide/cargo-home/bin/cargo" "+ece70b22820429ebf0c6d388c32356a14c58fc2f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 50cdb500f6304394aa898c59600262c1e4f7c906c99c8d1ca1d81383efe18de1
[INFO] running `Command { std: "docker" "start" "-a" "50cdb500f6304394aa898c59600262c1e4f7c906c99c8d1ca1d81383efe18de1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "50cdb500f6304394aa898c59600262c1e4f7c906c99c8d1ca1d81383efe18de1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "50cdb500f6304394aa898c59600262c1e4f7c906c99c8d1ca1d81383efe18de1", kill_on_drop: false }`
[INFO] [stdout] 50cdb500f6304394aa898c59600262c1e4f7c906c99c8d1ca1d81383efe18de1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:3d532c2baa59a8a48e45c3be7eb049f77ac5a58a7a6514a58a8e878df1c3d03d" "/opt/rustwide/cargo-home/bin/cargo" "+ece70b22820429ebf0c6d388c32356a14c58fc2f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 769e15099ad639a15a0f421912e4e999c1897b5bfaa89da93b15869bece2209f
[INFO] running `Command { std: "docker" "start" "-a" "769e15099ad639a15a0f421912e4e999c1897b5bfaa89da93b15869bece2209f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling radium v0.6.2
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling smallvec v1.6.1
[INFO] [stderr]    Compiling tap v1.0.1
[INFO] [stderr]    Compiling wyz v0.4.0
[INFO] [stderr]    Compiling nibble_vec v0.1.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling rand_core v0.6.2
[INFO] [stderr]    Compiling endian-type v0.1.2
[INFO] [stderr]    Compiling funty v1.2.0
[INFO] [stderr]    Compiling radix_trie v0.2.1
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling bitvec v0.22.3
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling env_logger v0.8.3
[INFO] [stderr]    Compiling quickcheck v1.0.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]    Compiling quickcheck_macros v1.0.0
[INFO] [stderr]    Compiling thiserror v1.0.25
[INFO] [stderr]    Compiling kompression v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `array::BitArray`, `bitarr`, `bitvec`, `slice::BitSlice`, `store::BitStore`
[INFO] [stdout]  --> src/lz78/compress.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     array::BitArray, bitarr, bitvec, field::BitField, order::Msb0, prelude::BitVec,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^  ^^^^^^  ^^^^^^
[INFO] [stdout] 5 |     slice::BitSlice, store::BitStore, view::BitView,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BitChunk`
[INFO] [stdout]   --> src/lz78/compress.rs:11:24
[INFO] [stdout]    |
[INFO] [stdout] 11 |     lz78::{code::Code, BitChunk, MAX_BITS},
[INFO] [stdout]    |                        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::MAX_BYTES`
[INFO] [stdout]   --> src/lz78/compress.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 | use super::MAX_BYTES;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/lz78/decompress.rs:81:51
[INFO] [stdout]    |
[INFO] [stdout] 81 | ...                   Err(Error::Incomplete(s)) => continue 'outer,
[INFO] [stdout]    |                                             ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]    --> src/lz78/decompress.rs:102:51
[INFO] [stdout]     |
[INFO] [stdout] 102 | ...                   Err(Error::Incomplete(s)) => continue 'outer,
[INFO] [stdout]     |                                             ^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `partial`
[INFO] [stdout]   --> src/lz78/mod.rs:47:21
[INFO] [stdout]    |
[INFO] [stdout] 47 |         if let Some(partial) = partial {
[INFO] [stdout]    |                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_partial`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_slice` is never used
[INFO] [stdout]   --> src/lz78/mod.rs:30:19
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub(crate) fn from_slice(data: &[u8]) -> Self {
[INFO] [stdout]    |                   ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `retrieve` is never used
[INFO] [stdout]   --> src/lz78/mod.rs:40:19
[INFO] [stdout]    |
[INFO] [stdout] 40 |     pub(crate) fn retrieve(&mut self, bits: usize, partial: Option<Self>) -> Result<u16, Self> {
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `store` is never used
[INFO] [stdout]   --> src/lz78/mod.rs:65:19
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub(crate) fn store(&mut self, mut data: u16, mut bits: usize) -> Result<usize, Self> {
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `write` is never used
[INFO] [stdout]   --> src/lz78/mod.rs:94:19
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub(crate) fn write(&self, w: &mut impl Write) -> Result<usize, Error> {
[INFO] [stdout]    |                   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> src/lz78/mod.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 |         &v[..data.len()].copy_from_slice(data);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 33 |         let _ = &v[..data.len()].copy_from_slice(data);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.97s
[INFO] running `Command { std: "docker" "inspect" "769e15099ad639a15a0f421912e4e999c1897b5bfaa89da93b15869bece2209f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "769e15099ad639a15a0f421912e4e999c1897b5bfaa89da93b15869bece2209f", kill_on_drop: false }`
[INFO] [stdout] 769e15099ad639a15a0f421912e4e999c1897b5bfaa89da93b15869bece2209f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:3d532c2baa59a8a48e45c3be7eb049f77ac5a58a7a6514a58a8e878df1c3d03d" "/opt/rustwide/cargo-home/bin/cargo" "+ece70b22820429ebf0c6d388c32356a14c58fc2f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e15dfde0e163f7eebe45c3a4a250edec130cd21fd1649af2728023c88bf86a88
[INFO] running `Command { std: "docker" "start" "-a" "e15dfde0e163f7eebe45c3a4a250edec130cd21fd1649af2728023c88bf86a88", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] running `Command { std: "docker" "inspect" "e15dfde0e163f7eebe45c3a4a250edec130cd21fd1649af2728023c88bf86a88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e15dfde0e163f7eebe45c3a4a250edec130cd21fd1649af2728023c88bf86a88", kill_on_drop: false }`
[INFO] [stdout] e15dfde0e163f7eebe45c3a4a250edec130cd21fd1649af2728023c88bf86a88