[INFO] fetching crate hyperbuild 0.2.4...
[INFO] checking hyperbuild-0.2.4 against try#f47dd4da3ae8c32c9e65d307bfe640b143e674df for pr-77526
[INFO] extracting crate hyperbuild 0.2.4 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate hyperbuild 0.2.4 on toolchain f47dd4da3ae8c32c9e65d307bfe640b143e674df
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate hyperbuild 0.2.4
[INFO] finished tweaking crates.io crate hyperbuild 0.2.4
[INFO] tweaked toml for crates.io crate hyperbuild 0.2.4 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded esbuild-rs v0.0.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 66d9022438837ce30ee5b031326d32a6b71b72fe61ab42a8a935319033c0094b
[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" "66d9022438837ce30ee5b031326d32a6b71b72fe61ab42a8a935319033c0094b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "66d9022438837ce30ee5b031326d32a6b71b72fe61ab42a8a935319033c0094b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "66d9022438837ce30ee5b031326d32a6b71b72fe61ab42a8a935319033c0094b", kill_on_drop: false }`
[INFO] [stdout] 66d9022438837ce30ee5b031326d32a6b71b72fe61ab42a8a935319033c0094b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+f47dd4da3ae8c32c9e65d307bfe640b143e674df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8f099d665ef16aa338fc15742be88ee8527ea567ae844a0aa16b7130837309c
[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" "f8f099d665ef16aa338fc15742be88ee8527ea567ae844a0aa16b7130837309c", kill_on_drop: false }`
[INFO] [stderr]     Checking hyperbuild v0.2.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `last_written` is never read
[INFO] [stdout]    --> src/unit/content.rs:104:21
[INFO] [stdout]     |
[INFO] [stdout] 104 |                     last_written = ContentType::Text;
[INFO] [stdout]     |                     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cfg`
[INFO] [stdout]  --> src/unit/script.rs:9:45
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn process_script(proc: &mut Processor, cfg: &Cfg) -> ProcessingResult<()> {
[INFO] [stdout]   |                                             ^^^ help: if this is intentional, prefix it with an underscore: `_cfg`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `last_written` is never read
[INFO] [stdout]    --> src/unit/content.rs:104:21
[INFO] [stdout]     |
[INFO] [stdout] 104 |                     last_written = ContentType::Text;
[INFO] [stdout]     |                     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cfg`
[INFO] [stdout]  --> src/unit/script.rs:9:45
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub fn process_script(proc: &mut Processor, cfg: &Cfg) -> ProcessingResult<()> {
[INFO] [stdout]   |                                             ^^^ help: if this is intentional, prefix it with an underscore: `_cfg`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `last_written`
[INFO] [stdout]   --> src/proc/checkpoint.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn last_written(&self, proc: &mut Processor) -> Option<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `IsNotChar`
[INFO] [stdout]   --> src/proc/mod.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     IsNotChar(u8),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WhileChar`
[INFO] [stdout]   --> src/proc/mod.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     WhileChar(u8),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `IsPred`
[INFO] [stdout]   --> src/proc/mod.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     IsPred(fn(u8) -> bool),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `IsNotPred`
[INFO] [stdout]   --> src/proc/mod.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     IsNotPred(fn(u8) -> bool),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WhilePred`
[INFO] [stdout]   --> src/proc/mod.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     WhilePred(fn(u8) -> bool),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WhileNotPred`
[INFO] [stdout]   --> src/proc/mod.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     WhileNotPred(fn(u8) -> bool),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `skip_amount_expect`
[INFO] [stdout]    --> src/proc/mod.rs:232:12
[INFO] [stdout]     |
[INFO] [stdout] 232 |     pub fn skip_amount_expect(&mut self, amount: usize) -> () {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_utf8`
[INFO] [stdout]    --> src/proc/mod.rs:263:12
[INFO] [stdout]     |
[INFO] [stdout] 263 |     pub fn write_utf8(&mut self, c: char) -> () {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `accept`
[INFO] [stdout]    --> src/proc/mod.rs:269:12
[INFO] [stdout]     |
[INFO] [stdout] 269 |     pub fn accept(&mut self) -> ProcessingResult<u8> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `accept_amount_expect`
[INFO] [stdout]    --> src/proc/mod.rs:287:12
[INFO] [stdout]     |
[INFO] [stdout] 287 |     pub fn accept_amount_expect(&mut self, count: usize) -> () {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `eval_with_js_min`
[INFO] [stdout]   --> src/tests/mod.rs:24:4
[INFO] [stdout]    |
[INFO] [stdout] 24 | fn eval_with_js_min(src: &'static [u8], expected: &'static [u8]) -> () {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `last_written`
[INFO] [stdout]   --> src/proc/checkpoint.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn last_written(&self, proc: &mut Processor) -> Option<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `IsNotChar`
[INFO] [stdout]   --> src/proc/mod.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     IsNotChar(u8),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WhileChar`
[INFO] [stdout]   --> src/proc/mod.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 |     WhileChar(u8),
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `IsPred`
[INFO] [stdout]   --> src/proc/mod.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 |     IsPred(fn(u8) -> bool),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `IsNotPred`
[INFO] [stdout]   --> src/proc/mod.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     IsNotPred(fn(u8) -> bool),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WhilePred`
[INFO] [stdout]   --> src/proc/mod.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     WhilePred(fn(u8) -> bool),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `WhileNotPred`
[INFO] [stdout]   --> src/proc/mod.rs:27:5
[INFO] [stdout]    |
[INFO] [stdout] 27 |     WhileNotPred(fn(u8) -> bool),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `skip_amount_expect`
[INFO] [stdout]    --> src/proc/mod.rs:232:12
[INFO] [stdout]     |
[INFO] [stdout] 232 |     pub fn skip_amount_expect(&mut self, amount: usize) -> () {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `write_utf8`
[INFO] [stdout]    --> src/proc/mod.rs:263:12
[INFO] [stdout]     |
[INFO] [stdout] 263 |     pub fn write_utf8(&mut self, c: char) -> () {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `accept`
[INFO] [stdout]    --> src/proc/mod.rs:269:12
[INFO] [stdout]     |
[INFO] [stdout] 269 |     pub fn accept(&mut self) -> ProcessingResult<u8> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `accept_amount_expect`
[INFO] [stdout]    --> src/proc/mod.rs:287:12
[INFO] [stdout]     |
[INFO] [stdout] 287 |     pub fn accept_amount_expect(&mut self, count: usize) -> () {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.43s
[INFO] running `Command { std: "docker" "inspect" "f8f099d665ef16aa338fc15742be88ee8527ea567ae844a0aa16b7130837309c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8f099d665ef16aa338fc15742be88ee8527ea567ae844a0aa16b7130837309c", kill_on_drop: false }`
[INFO] [stdout] f8f099d665ef16aa338fc15742be88ee8527ea567ae844a0aa16b7130837309c