[INFO] fetching crate sidetree 0.3.0...
[INFO] checking sidetree-0.3.0 against try#ddfd70ee3c3748e597b32f416b0d15a4f6e37685 for pr-87050
[INFO] extracting crate sidetree 0.3.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate sidetree 0.3.0 on toolchain ddfd70ee3c3748e597b32f416b0d15a4f6e37685
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sidetree 0.3.0
[INFO] finished tweaking crates.io crate sidetree 0.3.0
[INFO] tweaked toml for crates.io crate sidetree 0.3.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate sidetree 0.3.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "metadata" "--no-deps" "--format-version=1", 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] 20eb27227b19f26cc3a17e291a0c3ed0573c8a6629cc89f7fab2cc44e53b3097
[INFO] running `Command { std: "docker" "start" "-a" "20eb27227b19f26cc3a17e291a0c3ed0573c8a6629cc89f7fab2cc44e53b3097", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "20eb27227b19f26cc3a17e291a0c3ed0573c8a6629cc89f7fab2cc44e53b3097", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20eb27227b19f26cc3a17e291a0c3ed0573c8a6629cc89f7fab2cc44e53b3097", kill_on_drop: false }`
[INFO] [stdout] 20eb27227b19f26cc3a17e291a0c3ed0573c8a6629cc89f7fab2cc44e53b3097
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+ddfd70ee3c3748e597b32f416b0d15a4f6e37685" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6cb9c3bfbf4daaf919d65ccc6ede8e4dc8ecb55b52c00b1422c01e7ba1791cfb
[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" "6cb9c3bfbf4daaf919d65ccc6ede8e4dc8ecb55b52c00b1422c01e7ba1791cfb", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling version_check v0.9.3
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking unicode-segmentation v1.7.1
[INFO] [stderr]     Checking cassowary v0.3.0
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking xdg v2.2.0
[INFO] [stderr]     Checking path-dedot v3.0.12
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]     Checking path-absolutize v3.0.10
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]     Checking combine v4.5.2
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking termion v1.5.6
[INFO] [stderr]    Compiling syn v1.0.70
[INFO] [stderr]     Checking tui v0.14.0
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking serde v1.0.125
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking sidetree v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `StreamOnce`
[INFO] [stdout]   --> src/commands.rs:67:21
[INFO] [stdout]    |
[INFO] [stdout] 67 |     Parser, Stream, StreamOnce,
[INFO] [stdout]    |                     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::App`
[INFO] [stdout]  --> src/config.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::App;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `combine::error::StreamError`
[INFO] [stdout]  --> src/keymap.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use combine::error::StreamError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/keymap.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `combine::Parser`
[INFO] [stdout]   --> src/keymap.rs:83:7
[INFO] [stdout]    |
[INFO] [stdout] 83 |   use combine::Parser;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StreamOnce`
[INFO] [stdout]   --> src/commands.rs:67:21
[INFO] [stdout]    |
[INFO] [stdout] 67 |     Parser, Stream, StreamOnce,
[INFO] [stdout]    |                     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::App`
[INFO] [stdout]  --> src/config.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::App;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `combine::error::StreamError`
[INFO] [stdout]  --> src/keymap.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use combine::error::StreamError;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::error::Error`
[INFO] [stdout]  --> src/keymap.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::error::Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/prompt.rs:107:17
[INFO] [stdout]     |
[INFO] [stdout] 107 |     if let Some(p) = &self.prompt_state {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `p`
[INFO] [stdout]    --> src/prompt.rs:107:17
[INFO] [stdout]     |
[INFO] [stdout] 107 |     if let Some(p) = &self.prompt_state {
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_p`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `update`
[INFO] [stdout]   --> src/app.rs:73:10
[INFO] [stdout]    |
[INFO] [stdout] 73 |   pub fn update(&mut self) {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Block`
[INFO] [stdout]   --> src/commands.rs:37:3
[INFO] [stdout]    |
[INFO] [stdout] 37 |   Block(Vec<Command>),
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_expanded`
[INFO] [stdout]   --> src/file_tree.rs:78:10
[INFO] [stdout]    |
[INFO] [stdout] 78 |   pub fn is_expanded(&self, path: &Path) -> bool {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `entry_mut`
[INFO] [stdout]    --> src/file_tree.rs:150:10
[INFO] [stdout]     |
[INFO] [stdout] 150 |   pub fn entry_mut(&mut self) -> &mut TreeEntry {
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_mut`
[INFO] [stdout]    --> src/file_tree.rs:367:10
[INFO] [stdout]     |
[INFO] [stdout] 367 |   pub fn find_mut(&mut self, e: &TreeEntryLine) -> Option<&mut TreeEntry> {
[INFO] [stdout]     |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `input_handle`
[INFO] [stdout]   --> src/util/event.rs:22:3
[INFO] [stdout]    |
[INFO] [stdout] 22 |   input_handle: thread::JoinHandle<()>,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `tick_handle`
[INFO] [stdout]   --> src/util/event.rs:24:3
[INFO] [stdout]    |
[INFO] [stdout] 24 |   tick_handle: thread::JoinHandle<()>,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_items`
[INFO] [stdout]   --> src/util/mod.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 |   pub fn with_items(items: Vec<T>) -> StatefulList<T> {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unselect`
[INFO] [stdout]   --> src/util/mod.rs:45:10
[INFO] [stdout]    |
[INFO] [stdout] 45 |   pub fn unselect(&mut self) {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `selected_mut`
[INFO] [stdout]   --> src/util/mod.rs:59:10
[INFO] [stdout]    |
[INFO] [stdout] 59 |   pub fn selected_mut(&mut self) -> Option<&mut T> {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `try_trait`
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(try_trait)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `sidetree`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: associated function is never used: `update`
[INFO] [stdout]   --> src/app.rs:73:10
[INFO] [stdout]    |
[INFO] [stdout] 73 |   pub fn update(&mut self) {
[INFO] [stdout]    |          ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Block`
[INFO] [stdout]   --> src/commands.rs:37:3
[INFO] [stdout]    |
[INFO] [stdout] 37 |   Block(Vec<Command>),
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_expanded`
[INFO] [stdout]   --> src/file_tree.rs:78:10
[INFO] [stdout]    |
[INFO] [stdout] 78 |   pub fn is_expanded(&self, path: &Path) -> bool {
[INFO] [stdout]    |          ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `entry_mut`
[INFO] [stdout]    --> src/file_tree.rs:150:10
[INFO] [stdout]     |
[INFO] [stdout] 150 |   pub fn entry_mut(&mut self) -> &mut TreeEntry {
[INFO] [stdout]     |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `find_mut`
[INFO] [stdout]    --> src/file_tree.rs:367:10
[INFO] [stdout]     |
[INFO] [stdout] 367 |   pub fn find_mut(&mut self, e: &TreeEntryLine) -> Option<&mut TreeEntry> {
[INFO] [stdout]     |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `input_handle`
[INFO] [stdout]   --> src/util/event.rs:22:3
[INFO] [stdout]    |
[INFO] [stdout] 22 |   input_handle: thread::JoinHandle<()>,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `tick_handle`
[INFO] [stdout]   --> src/util/event.rs:24:3
[INFO] [stdout]    |
[INFO] [stdout] 24 |   tick_handle: thread::JoinHandle<()>,
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `with_items`
[INFO] [stdout]   --> src/util/mod.rs:18:10
[INFO] [stdout]    |
[INFO] [stdout] 18 |   pub fn with_items(items: Vec<T>) -> StatefulList<T> {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `unselect`
[INFO] [stdout]   --> src/util/mod.rs:45:10
[INFO] [stdout]    |
[INFO] [stdout] 45 |   pub fn unselect(&mut self) {
[INFO] [stdout]    |          ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `selected_mut`
[INFO] [stdout]   --> src/util/mod.rs:59:10
[INFO] [stdout]    |
[INFO] [stdout] 59 |   pub fn selected_mut(&mut self) -> Option<&mut T> {
[INFO] [stdout]    |          ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `try_trait`
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(try_trait)]
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "6cb9c3bfbf4daaf919d65ccc6ede8e4dc8ecb55b52c00b1422c01e7ba1791cfb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cb9c3bfbf4daaf919d65ccc6ede8e4dc8ecb55b52c00b1422c01e7ba1791cfb", kill_on_drop: false }`
[INFO] [stdout] 6cb9c3bfbf4daaf919d65ccc6ede8e4dc8ecb55b52c00b1422c01e7ba1791cfb