[INFO] fetching crate async-acme 0.2.0...
[INFO] checking async-acme-0.2.0 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate async-acme 0.2.0 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate async-acme 0.2.0 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-acme 0.2.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate async-acme 0.2.0
[INFO] tweaked toml for crates.io crate async-acme 0.2.0 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] crate crates.io crate async-acme 0.2.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stdout] 499d78e0e186165675a5f61d26c8736db5cefec5642d7d91f638342a6c22b2af
[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" "499d78e0e186165675a5f61d26c8736db5cefec5642d7d91f638342a6c22b2af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "499d78e0e186165675a5f61d26c8736db5cefec5642d7d91f638342a6c22b2af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "499d78e0e186165675a5f61d26c8736db5cefec5642d7d91f638342a6c22b2af", kill_on_drop: false }`
[INFO] [stdout] 499d78e0e186165675a5f61d26c8736db5cefec5642d7d91f638342a6c22b2af
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3bf259e10198ce506354dd93544030dc34bc052e93995bfd332763943d101174
[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" "3bf259e10198ce506354dd93544030dc34bc052e93995bfd332763943d101174", kill_on_drop: false }`
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[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]   --> src/crypto/dummy.rs:19:24
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn sign(&self, message: &[u8],
[INFO] [stdout]    |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `domains`
[INFO] [stdout]   --> src/crypto/dummy.rs:55:20
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn gen_new(domains: Vec<String>) -> Result<CertBuilder, ()> {
[INFO] [stdout]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_domains`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pem_cert`
[INFO] [stdout]   --> src/crypto/dummy.rs:65:27
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn sign(self, mut pem_cert: &[u8]) -> Result<Identity, ()> {
[INFO] [stdout]    |                           ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pem_cert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/crypto/dummy.rs:65:23
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn sign(self, mut pem_cert: &[u8]) -> Result<Identity, ()> {
[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: function is never used: `get_cert_duration_left`
[INFO] [stdout]   --> src/crypto/mod.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn get_cert_duration_left(x509_cert : &[u8]) -> Result<Duration,()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Identity`
[INFO] [stdout]   --> src/crypto/dummy.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct Identity{}
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_acme_cert`
[INFO] [stdout]   --> src/crypto/dummy.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn gen_acme_cert(_domains: Vec<String>, _acme_hash: &[u8]) -> Result<Identity, ()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `CertBuilder`
[INFO] [stdout]   --> src/crypto/dummy.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub struct CertBuilder {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `gen_new`
[INFO] [stdout]   --> src/crypto/dummy.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn gen_new(domains: Vec<String>) -> Result<CertBuilder, ()> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_csr`
[INFO] [stdout]   --> src/crypto/dummy.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn get_csr(&self) -> Result<Vec<u8>,()> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `private_key_as_pem_pkcs8`
[INFO] [stdout]   --> src/crypto/dummy.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn private_key_as_pem_pkcs8(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sign`
[INFO] [stdout]   --> src/crypto/dummy.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn sign(self, mut pem_cert: &[u8]) -> Result<Identity, ()> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]   --> src/crypto/dummy.rs:19:24
[INFO] [stdout]    |
[INFO] [stdout] 19 |     pub fn sign(&self, message: &[u8],
[INFO] [stdout]    |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `domains`
[INFO] [stdout]   --> src/crypto/dummy.rs:55:20
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn gen_new(domains: Vec<String>) -> Result<CertBuilder, ()> {
[INFO] [stdout]    |                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_domains`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `pem_cert`
[INFO] [stdout]   --> src/crypto/dummy.rs:65:27
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn sign(self, mut pem_cert: &[u8]) -> Result<Identity, ()> {
[INFO] [stdout]    |                           ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_pem_cert`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/crypto/dummy.rs:65:23
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn sign(self, mut pem_cert: &[u8]) -> Result<Identity, ()> {
[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: function is never used: `get_cert_duration_left`
[INFO] [stdout]   --> src/crypto/mod.rs:19:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | pub fn get_cert_duration_left(x509_cert : &[u8]) -> Result<Duration,()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Identity`
[INFO] [stdout]   --> src/crypto/dummy.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct Identity{}
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `gen_acme_cert`
[INFO] [stdout]   --> src/crypto/dummy.rs:47:8
[INFO] [stdout]    |
[INFO] [stdout] 47 | pub fn gen_acme_cert(_domains: Vec<String>, _acme_hash: &[u8]) -> Result<Identity, ()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `CertBuilder`
[INFO] [stdout]   --> src/crypto/dummy.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 | pub struct CertBuilder {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `gen_new`
[INFO] [stdout]   --> src/crypto/dummy.rs:55:12
[INFO] [stdout]    |
[INFO] [stdout] 55 |     pub fn gen_new(domains: Vec<String>) -> Result<CertBuilder, ()> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_csr`
[INFO] [stdout]   --> src/crypto/dummy.rs:59:12
[INFO] [stdout]    |
[INFO] [stdout] 59 |     pub fn get_csr(&self) -> Result<Vec<u8>,()> {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `private_key_as_pem_pkcs8`
[INFO] [stdout]   --> src/crypto/dummy.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn private_key_as_pem_pkcs8(&self) -> String {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `sign`
[INFO] [stdout]   --> src/crypto/dummy.rs:65:12
[INFO] [stdout]    |
[INFO] [stdout] 65 |     pub fn sign(self, mut pem_cert: &[u8]) -> Result<Identity, ()> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 26s
[INFO] running `Command { std: "docker" "inspect" "3bf259e10198ce506354dd93544030dc34bc052e93995bfd332763943d101174", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bf259e10198ce506354dd93544030dc34bc052e93995bfd332763943d101174", kill_on_drop: false }`
[INFO] [stdout] 3bf259e10198ce506354dd93544030dc34bc052e93995bfd332763943d101174
