[INFO] fetching crate zfec-rs 0.1.0...
[INFO] testing zfec-rs-0.1.0 against try#b83b707f97d809763b7861afa7638871f3339a33 for pr-145838-1
[INFO] extracting crate zfec-rs 0.1.0 into /workspace/builds/worker-5-tc2/source
[INFO] started tweaking crates.io crate zfec-rs 0.1.0
[INFO] finished tweaking crates.io crate zfec-rs 0.1.0
[INFO] tweaked toml for crates.io crate zfec-rs 0.1.0 written to /workspace/builds/worker-5-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate zfec-rs 0.1.0 on toolchain b83b707f97d809763b7861afa7638871f3339a33
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 14 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 207bc465447bf1a86221ba3da4c4f9cc4a2f15c7b578469510c0d9221d846b8d
[INFO] running `Command { std: "docker" "start" "-a" "207bc465447bf1a86221ba3da4c4f9cc4a2f15c7b578469510c0d9221d846b8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "207bc465447bf1a86221ba3da4c4f9cc4a2f15c7b578469510c0d9221d846b8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "207bc465447bf1a86221ba3da4c4f9cc4a2f15c7b578469510c0d9221d846b8d", kill_on_drop: false }`
[INFO] [stdout] 207bc465447bf1a86221ba3da4c4f9cc4a2f15c7b578469510c0d9221d846b8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5852fb6b31293935d33d640dd85add33eeebeb3a7dab263d5e331f22042e695
[INFO] running `Command { std: "docker" "start" "-a" "e5852fb6b31293935d33d640dd85add33eeebeb3a7dab263d5e331f22042e695", kill_on_drop: false }`
[INFO] [stderr]    Compiling zfec-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "e5852fb6b31293935d33d640dd85add33eeebeb3a7dab263d5e331f22042e695", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5852fb6b31293935d33d640dd85add33eeebeb3a7dab263d5e331f22042e695", kill_on_drop: false }`
[INFO] [stdout] e5852fb6b31293935d33d640dd85add33eeebeb3a7dab263d5e331f22042e695
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4acc175c1fd98559ccb3ec75b62a38edee93e0f76c6133524ab8a7aa7f0226df
[INFO] running `Command { std: "docker" "start" "-a" "4acc175c1fd98559ccb3ec75b62a38edee93e0f76c6133524ab8a7aa7f0226df", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling zfec-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `thread_rng`
[INFO] [stdout]   --> src/tests.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | use rand::{thread_rng, Rng};
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `collections::BTreeMap`, `fs`, `io::prelude::*`, and `time`
[INFO] [stdout]   --> src/tests.rs:19:11
[INFO] [stdout]    |
[INFO] [stdout] 19 | use std::{collections::BTreeMap, fs, io::prelude::*, time};
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^^^^^  ^^  ^^^^^^^^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tests.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut fec = Fec::new(k, m).unwrap();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.14s
[INFO] running `Command { std: "docker" "inspect" "4acc175c1fd98559ccb3ec75b62a38edee93e0f76c6133524ab8a7aa7f0226df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4acc175c1fd98559ccb3ec75b62a38edee93e0f76c6133524ab8a7aa7f0226df", kill_on_drop: false }`
[INFO] [stdout] 4acc175c1fd98559ccb3ec75b62a38edee93e0f76c6133524ab8a7aa7f0226df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+b83b707f97d809763b7861afa7638871f3339a33" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] bf72e20526d90165541a0784de1184e546390d8c2af61949b1f8f48bcffa3794
[INFO] running `Command { std: "docker" "start" "-a" "bf72e20526d90165541a0784de1184e546390d8c2af61949b1f8f48bcffa3794", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stdout] running 3 tests
[INFO] [stderr] warning: unused import: `thread_rng`
[INFO] [stderr]   --> src/tests.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 | use rand::{thread_rng, Rng};
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `collections::BTreeMap`, `fs`, `io::prelude::*`, and `time`
[INFO] [stderr]   --> src/tests.rs:19:11
[INFO] [stderr]    |
[INFO] [stderr] 19 | use std::{collections::BTreeMap, fs, io::prelude::*, time};
[INFO] [stderr]    |           ^^^^^^^^^^^^^^^^^^^^^  ^^  ^^^^^^^^^^^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/tests.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |     let mut fec = Fec::new(k, m).unwrap();
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `zfec-rs` (lib test) generated 3 warnings (run `cargo fix --lib -p zfec-rs --tests` to apply 3 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/zfec_rs-9e172329ff7d09a9)
[INFO] [stdout] test tests::encoder_5_8_test ... ok
[INFO] [stdout] test tests::decoder_5_8_test ... ok
[INFO] [stdout] test tests::decoder_extensive ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.94s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests zfec_rs
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - Fec (line 137) ... ok
[INFO] [stdout] test src/lib.rs - Chunk (line 87) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.29s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "bf72e20526d90165541a0784de1184e546390d8c2af61949b1f8f48bcffa3794", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf72e20526d90165541a0784de1184e546390d8c2af61949b1f8f48bcffa3794", kill_on_drop: false }`
[INFO] [stdout] bf72e20526d90165541a0784de1184e546390d8c2af61949b1f8f48bcffa3794