[INFO] cloning repository https://github.com/ptrptr/base64-mime
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ptrptr/base64-mime" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fptrptr%2Fbase64-mime", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fptrptr%2Fbase64-mime'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7296ad9e56f4967d4b8957dae5d2488ffdd6e286
[INFO] checking ptrptr/base64-mime against master#db1fb85cff63ad5fffe435e17128f99f9e1d970c for pr-89056
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fptrptr%2Fbase64-mime" "/workspace/builds/worker-108/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-108/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ptrptr/base64-mime on toolchain db1fb85cff63ad5fffe435e17128f99f9e1d970c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ptrptr/base64-mime
[INFO] finished tweaking git repo https://github.com/ptrptr/base64-mime
[INFO] tweaked toml for git repo https://github.com/ptrptr/base64-mime written to /workspace/builds/worker-108/source/Cargo.toml
[INFO] crate git repo https://github.com/ptrptr/base64-mime already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f16c881fe4cddb232a87c323dbafe5d336349387064d3b979645d09f56767e6d
[INFO] running `Command { std: "docker" "start" "-a" "f16c881fe4cddb232a87c323dbafe5d336349387064d3b979645d09f56767e6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f16c881fe4cddb232a87c323dbafe5d336349387064d3b979645d09f56767e6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f16c881fe4cddb232a87c323dbafe5d336349387064d3b979645d09f56767e6d", kill_on_drop: false }`
[INFO] [stdout] f16c881fe4cddb232a87c323dbafe5d336349387064d3b979645d09f56767e6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-108/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+db1fb85cff63ad5fffe435e17128f99f9e1d970c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 68ba9658ed65deeac4546191f0abc26be4aed8146bb3cd9bcdee2e2229299f3d
[INFO] running `Command { std: "docker" "start" "-a" "68ba9658ed65deeac4546191f0abc26be4aed8146bb3cd9bcdee2e2229299f3d", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling libc v0.2.102
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling syn v1.0.76
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]    Compiling serde_json v1.0.68
[INFO] [stderr]    Compiling ntest_proc_macro_helper v0.7.3
[INFO] [stderr]     Checking itoa v0.4.8
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking base64-mime v0.1.0 (/opt/rustwide/workdir/base64-mime)
[INFO] [stdout] warning: field is never read: `non_alphabet_count`
[INFO] [stdout]   --> base64-mime/src/reader/mod.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |         non_alphabet_count : usize,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking os_pipe v0.9.2
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]    Compiling proc-macro-crate v0.1.5
[INFO] [stderr]     Checking base64-cli v0.1.0 (/opt/rustwide/workdir/base64-cli)
[INFO] [stderr]    Compiling ntest_timeout v0.7.3
[INFO] [stderr]    Compiling ntest_test_cases v0.7.3
[INFO] [stderr]    Compiling test-env-log v0.2.7
[INFO] [stderr]     Checking ntest v0.7.3
[INFO] [stdout] warning: unused imports: `sleep`, `spawn`, `time::Duration`
[INFO] [stdout]  --> base64-mime/src/reader/tests/mod.rs:1:44
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{io::{BufReader, Write}, thread::{sleep, spawn}, time::Duration};
[INFO] [stdout]   |                                            ^^^^^  ^^^^^   ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufReader`
[INFO] [stdout]  --> base64-mime/src/reader/tests/catenation.rs:1:15
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::io::{BufReader, Read};
[INFO] [stdout]   |               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Base64Reader`
[INFO] [stdout]  --> base64-mime/src/reader/tests/catenation.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::reader::{Base64Reader, tests::setup_str};
[INFO] [stdout]   |                     ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> base64-mime/src/reader/tests/mod.rs:118:10
[INFO] [stdout]     |
[INFO] [stdout] 118 |     let (mut read, mut write) = os_pipe::pipe()?;
[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: field is never read: `non_alphabet_count`
[INFO] [stdout]   --> base64-mime/src/reader/mod.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |         non_alphabet_count : usize,
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 50.22s
[INFO] running `Command { std: "docker" "inspect" "68ba9658ed65deeac4546191f0abc26be4aed8146bb3cd9bcdee2e2229299f3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "68ba9658ed65deeac4546191f0abc26be4aed8146bb3cd9bcdee2e2229299f3d", kill_on_drop: false }`
[INFO] [stdout] 68ba9658ed65deeac4546191f0abc26be4aed8146bb3cd9bcdee2e2229299f3d