[INFO] fetching crate quiet 0.1.0...
[INFO] testing quiet-0.1.0 against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] extracting crate quiet 0.1.0 into /workspace/builds/worker-70/source
[INFO] validating manifest of crates.io crate quiet 0.1.0 on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate quiet 0.1.0
[INFO] finished tweaking crates.io crate quiet 0.1.0
[INFO] tweaked toml for crates.io crate quiet 0.1.0 written to /workspace/builds/worker-70/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7f43bde07af3090ba4914e4e2f96b220478c2fb931434ae31c1f0aa554513532
[INFO] running `Command { std: "docker" "start" "-a" "7f43bde07af3090ba4914e4e2f96b220478c2fb931434ae31c1f0aa554513532", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7f43bde07af3090ba4914e4e2f96b220478c2fb931434ae31c1f0aa554513532", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f43bde07af3090ba4914e4e2f96b220478c2fb931434ae31c1f0aa554513532", kill_on_drop: false }`
[INFO] [stdout] 7f43bde07af3090ba4914e4e2f96b220478c2fb931434ae31c1f0aa554513532
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b0799eaab63d0e2809b6fc96d1a66a78198711326b97a8a5e7de6d9d2e6e4c4
[INFO] running `Command { std: "docker" "start" "-a" "0b0799eaab63d0e2809b6fc96d1a66a78198711326b97a8a5e7de6d9d2e6e4c4", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling quiet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/fec/convolutional/decoder.rs:92:25
[INFO] [stdout]    |
[INFO] [stdout] 92 |                     let mut errors = &mut self.error_table.errors;
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/fec/convolutional/decoder.rs:170:25
[INFO] [stdout]     |
[INFO] [stdout] 170 |                     let mut errors = &mut self.error_table.errors;
[INFO] [stdout]     |                         ----^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]    --> src/fec/convolutional/bit.rs:177:12
[INFO] [stdout]     |
[INFO] [stdout] 177 |     pub fn len(&self) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.16s
[INFO] running `Command { std: "docker" "inspect" "0b0799eaab63d0e2809b6fc96d1a66a78198711326b97a8a5e7de6d9d2e6e4c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b0799eaab63d0e2809b6fc96d1a66a78198711326b97a8a5e7de6d9d2e6e4c4", kill_on_drop: false }`
[INFO] [stdout] 0b0799eaab63d0e2809b6fc96d1a66a78198711326b97a8a5e7de6d9d2e6e4c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3cedf6b3afc2597fb4b5f63bcd2aeb0558fe04420d395187d3f918dc037a7da
[INFO] running `Command { std: "docker" "start" "-a" "f3cedf6b3afc2597fb4b5f63bcd2aeb0558fe04420d395187d3f918dc037a7da", kill_on_drop: false }`
[INFO] [stderr]    Compiling quiet v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/fec/convolutional/decoder.rs:92:25
[INFO] [stdout]    |
[INFO] [stdout] 92 |                     let mut errors = &mut self.error_table.errors;
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/fec/convolutional/decoder.rs:170:25
[INFO] [stdout]     |
[INFO] [stdout] 170 |                     let mut errors = &mut self.error_table.errors;
[INFO] [stdout]     |                         ----^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]    --> src/fec/convolutional/bit.rs:177:12
[INFO] [stdout]     |
[INFO] [stdout] 177 |     pub fn len(&self) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/fec/convolutional/decoder.rs:92:25
[INFO] [stdout]    |
[INFO] [stdout] 92 |                     let mut errors = &mut self.error_table.errors;
[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: variable does not need to be mutable
[INFO] [stdout]    --> src/fec/convolutional/decoder.rs:170:25
[INFO] [stdout]     |
[INFO] [stdout] 170 |                     let mut errors = &mut self.error_table.errors;
[INFO] [stdout]     |                         ----^^^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `len`
[INFO] [stdout]    --> src/fec/convolutional/bit.rs:177:12
[INFO] [stdout]     |
[INFO] [stdout] 177 |     pub fn len(&self) -> usize {
[INFO] [stdout]     |            ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "f3cedf6b3afc2597fb4b5f63bcd2aeb0558fe04420d395187d3f918dc037a7da", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3cedf6b3afc2597fb4b5f63bcd2aeb0558fe04420d395187d3f918dc037a7da", kill_on_drop: false }`
[INFO] [stdout] f3cedf6b3afc2597fb4b5f63bcd2aeb0558fe04420d395187d3f918dc037a7da
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-70/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] e16ae155856bb69510078b21d0404820befdd255b448fd1c4d7b72fd86a3f7f3
[INFO] running `Command { std: "docker" "start" "-a" "e16ae155856bb69510078b21d0404820befdd255b448fd1c4d7b72fd86a3f7f3", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/fec/convolutional/decoder.rs:92:25
[INFO] [stderr]    |
[INFO] [stderr] 92 |                     let mut errors = &mut self.error_table.errors;
[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: variable does not need to be mutable
[INFO] [stderr]    --> src/fec/convolutional/decoder.rs:170:25
[INFO] [stderr]     |
[INFO] [stderr] 170 |                     let mut errors = &mut self.error_table.errors;
[INFO] [stderr]     |                         ----^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `len`
[INFO] [stderr]    --> src/fec/convolutional/bit.rs:177:12
[INFO] [stderr]     |
[INFO] [stderr] 177 |     pub fn len(&self) -> usize {
[INFO] [stderr]     |            ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `quiet` (lib) generated 3 warnings
[INFO] [stderr] warning: `quiet` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.17s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/quiet-7c04cff9a0d049f2)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[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] [stderr]    Doc-tests quiet
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[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] running `Command { std: "docker" "inspect" "e16ae155856bb69510078b21d0404820befdd255b448fd1c4d7b72fd86a3f7f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e16ae155856bb69510078b21d0404820befdd255b448fd1c4d7b72fd86a3f7f3", kill_on_drop: false }`
[INFO] [stdout] e16ae155856bb69510078b21d0404820befdd255b448fd1c4d7b72fd86a3f7f3