[INFO] cloning repository https://github.com/christian-cleberg/crypt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/christian-cleberg/crypt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchristian-cleberg%2Fcrypt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchristian-cleberg%2Fcrypt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 73cdc02b6c2b0920c466e6ad2ed7ab705cf55bbf
[INFO] testing christian-cleberg/crypt against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchristian-cleberg%2Fcrypt" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/christian-cleberg/crypt on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/christian-cleberg/crypt
[INFO] finished tweaking git repo https://github.com/christian-cleberg/crypt
[INFO] tweaked toml for git repo https://github.com/christian-cleberg/crypt written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/christian-cleberg/crypt already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d25c18734b89ccf0b2bba6def768b782b35ea9fa5c976b6f84e1933661a8723e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d25c18734b89ccf0b2bba6def768b782b35ea9fa5c976b6f84e1933661a8723e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d25c18734b89ccf0b2bba6def768b782b35ea9fa5c976b6f84e1933661a8723e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d25c18734b89ccf0b2bba6def768b782b35ea9fa5c976b6f84e1933661a8723e", kill_on_drop: false }`
[INFO] [stdout] d25c18734b89ccf0b2bba6def768b782b35ea9fa5c976b6f84e1933661a8723e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 0363c7b5b63d10e9ab9233475b799dbd1ad830ae2a98de1ea3477e949b4c45fa
[INFO] running `Command { std: "docker" "start" "-a" "0363c7b5b63d10e9ab9233475b799dbd1ad830ae2a98de1ea3477e949b4c45fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling clap v2.27.1
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling uuid v0.8.2
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling crypt v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `SubCommand`
[INFO] [stdout]  --> src/main.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use clap::{Arg, App, SubCommand};
[INFO] [stdout]   |                      ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `fs::File`
[INFO] [stdout]  --> src/main.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{fs::File, io::{BufRead, BufReader}, str};
[INFO] [stdout]   |           ^^^^^^^^                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read`, `self`
[INFO] [stdout]  --> src/main.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, Read};
[INFO] [stdout]   |               ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Alphanumeric`, `Standard`, `Uniform`
[INFO] [stdout]  --> src/main.rs:5:27
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::distributions::{Alphanumeric, Uniform, Standard};
[INFO] [stdout]   |                           ^^^^^^^^^^^^  ^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::seq::IteratorRandom`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rand::seq::IteratorRandom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/main.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{fs::File, io::{BufRead, BufReader}, str};
[INFO] [stdout]   |                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let mut password_words: Vec<&str> = (0..n)
[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: associated function is never used: `update_password`
[INFO] [stdout]   --> src/main.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn update_password(&mut self, new_password: String) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.61s
[INFO] running `Command { std: "docker" "inspect" "0363c7b5b63d10e9ab9233475b799dbd1ad830ae2a98de1ea3477e949b4c45fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0363c7b5b63d10e9ab9233475b799dbd1ad830ae2a98de1ea3477e949b4c45fa", kill_on_drop: false }`
[INFO] [stdout] 0363c7b5b63d10e9ab9233475b799dbd1ad830ae2a98de1ea3477e949b4c45fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8554452b0a88ab170f342c189bc739c8a121085a66751c083fc751d71b96ad59
[INFO] running `Command { std: "docker" "start" "-a" "8554452b0a88ab170f342c189bc739c8a121085a66751c083fc751d71b96ad59", kill_on_drop: false }`
[INFO] [stderr]    Compiling crypt v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `SubCommand`
[INFO] [stdout]  --> src/main.rs:1:22
[INFO] [stdout]   |
[INFO] [stdout] 1 | use clap::{Arg, App, SubCommand};
[INFO] [stdout]   |                      ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufReader`, `fs::File`
[INFO] [stdout]  --> src/main.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{fs::File, io::{BufRead, BufReader}, str};
[INFO] [stdout]   |           ^^^^^^^^                ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read`, `self`
[INFO] [stdout]  --> src/main.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{self, Read};
[INFO] [stdout]   |               ^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Alphanumeric`, `Standard`, `Uniform`
[INFO] [stdout]  --> src/main.rs:5:27
[INFO] [stdout]   |
[INFO] [stdout] 5 | use rand::distributions::{Alphanumeric, Uniform, Standard};
[INFO] [stdout]   |                           ^^^^^^^^^^^^  ^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::seq::IteratorRandom`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rand::seq::IteratorRandom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `BufRead`
[INFO] [stdout]  --> src/main.rs:2:26
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{fs::File, io::{BufRead, BufReader}, str};
[INFO] [stdout]   |                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let mut password_words: Vec<&str> = (0..n)
[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: associated function is never used: `update_password`
[INFO] [stdout]   --> src/main.rs:24:8
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn update_password(&mut self, new_password: String) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.14s
[INFO] running `Command { std: "docker" "inspect" "8554452b0a88ab170f342c189bc739c8a121085a66751c083fc751d71b96ad59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8554452b0a88ab170f342c189bc739c8a121085a66751c083fc751d71b96ad59", kill_on_drop: false }`
[INFO] [stdout] 8554452b0a88ab170f342c189bc739c8a121085a66751c083fc751d71b96ad59
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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=warn" "-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" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3427d9e48565719a14b3d53e47668e63ac3b04b89b3b6f7f8171771b4d991623
[INFO] running `Command { std: "docker" "start" "-a" "3427d9e48565719a14b3d53e47668e63ac3b04b89b3b6f7f8171771b4d991623", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `SubCommand`
[INFO] [stderr]  --> src/main.rs:1:22
[INFO] [stderr]   |
[INFO] [stderr] 1 | use clap::{Arg, App, SubCommand};
[INFO] [stderr]   |                      ^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufReader`, `fs::File`
[INFO] [stderr]  --> src/main.rs:2:11
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{fs::File, io::{BufRead, BufReader}, str};
[INFO] [stderr]   |           ^^^^^^^^                ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Read`, `self`
[INFO] [stderr]  --> src/main.rs:3:15
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::io::{self, Read};
[INFO] [stderr]   |               ^^^^  ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Alphanumeric`, `Standard`, `Uniform`
[INFO] [stderr]  --> src/main.rs:5:27
[INFO] [stderr]   |
[INFO] [stderr] 5 | use rand::distributions::{Alphanumeric, Uniform, Standard};
[INFO] [stderr]   |                           ^^^^^^^^^^^^  ^^^^^^^  ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `rand::seq::IteratorRandom`
[INFO] [stderr]  --> src/main.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use rand::seq::IteratorRandom;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `BufRead`
[INFO] [stderr]  --> src/main.rs:2:26
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::{fs::File, io::{BufRead, BufReader}, str};
[INFO] [stderr]   |                          ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:78:9
[INFO] [stderr]    |
[INFO] [stderr] 78 |     let mut password_words: Vec<&str> = (0..n)
[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: associated function is never used: `update_password`
[INFO] [stderr]   --> src/main.rs:24:8
[INFO] [stderr]    |
[INFO] [stderr] 24 |     fn update_password(&mut self, new_password: String) {
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `crypt` (bin "crypt" test) generated 8 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/crypt-0f022d80f3073834)
[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" "3427d9e48565719a14b3d53e47668e63ac3b04b89b3b6f7f8171771b4d991623", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3427d9e48565719a14b3d53e47668e63ac3b04b89b3b6f7f8171771b4d991623", kill_on_drop: false }`
[INFO] [stdout] 3427d9e48565719a14b3d53e47668e63ac3b04b89b3b6f7f8171771b4d991623