[INFO] cloning repository https://github.com/LunarCoffee/Knot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/LunarCoffee/Knot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLunarCoffee%2FKnot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLunarCoffee%2FKnot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 93d4ba669af161d899e2c65b59b2607c95708e2e
[INFO] checking LunarCoffee/Knot against master#9610dfe5a9a731ced1ea4923ecbd0c57fe367898 for beta-170-4
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FLunarCoffee%2FKnot" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/LunarCoffee/Knot on toolchain 9610dfe5a9a731ced1ea4923ecbd0c57fe367898
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/LunarCoffee/Knot
[INFO] finished tweaking git repo https://github.com/LunarCoffee/Knot
[INFO] tweaked toml for git repo https://github.com/LunarCoffee/Knot written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/LunarCoffee/Knot already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 991a0965b7a0c47d0af1cc1ffd66e956d7d3ad077afbcd361fcc96e7bdd888d3
[INFO] running `Command { std: "docker" "start" "-a" "991a0965b7a0c47d0af1cc1ffd66e956d7d3ad077afbcd361fcc96e7bdd888d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "991a0965b7a0c47d0af1cc1ffd66e956d7d3ad077afbcd361fcc96e7bdd888d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "991a0965b7a0c47d0af1cc1ffd66e956d7d3ad077afbcd361fcc96e7bdd888d3", kill_on_drop: false }`
[INFO] [stdout] 991a0965b7a0c47d0af1cc1ffd66e956d7d3ad077afbcd361fcc96e7bdd888d3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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@sha256:19e73879b68f455e41552ea35293514db52ea292d993f571636dbffedb77a1ee" "/opt/rustwide/cargo-home/bin/cargo" "+9610dfe5a9a731ced1ea4923ecbd0c57fe367898" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2fc22eb7c89979d3a6e721d5a1726f27ac68d16b4d6556135044913c4a9436e
[INFO] running `Command { std: "docker" "start" "-a" "a2fc22eb7c89979d3a6e721d5a1726f27ac68d16b4d6556135044913c4a9436e", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-bigint v0.3.0
[INFO] [stderr]    Compiling num-rational v0.3.0
[INFO] [stderr]    Compiling num-iter v0.1.41
[INFO] [stderr]     Checking num-integer v0.1.43
[INFO] [stderr]     Checking num-complex v0.3.0
[INFO] [stderr]     Checking num v0.3.0
[INFO] [stderr]     Checking knot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(box_syntax)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/main.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | #![feature(box_syntax)]
[INFO] [stdout]   |            ^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: replaced with `#[rustc_box]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parse/combinators.rs:249:19
[INFO] [stdout]     |
[INFO] [stdout] 249 |               func: box move |reader| {
[INFO] [stdout]     |  ___________________^
[INFO] [stdout] 250 | |                 // This is rather inefficient but I can't be bothered to think of a better solution at the moment.
[INFO] [stdout] 251 | |                 let mut buf = Cursor::new(vec![]);
[INFO] [stdout] 252 | |                 let current = reader.stream_position()?;
[INFO] [stdout] ...   |
[INFO] [stdout] 260 | |                 result
[INFO] [stdout] 261 | |             },
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 249 ~             func: Box::new(move |reader| {
[INFO] [stdout] 250 +                 // This is rather inefficient but I can't be bothered to think of a better solution at the moment.
[INFO] [stdout] 251 +                 let mut buf = Cursor::new(vec![]);
[INFO] [stdout] 252 +                 let current = reader.stream_position()?;
[INFO] [stdout] 253 +                 reader.read_to_end(buf.get_mut())?;
[INFO] [stdout] 254 + 
[INFO] [stdout] 255 +                 // Parse then seek the original reader to the correct position, taking into account backtracking and
[INFO] [stdout] 256 +                 // the result of the parse.
[INFO] [stdout] 257 +                 let result = parser.parse(&mut buf);
[INFO] [stdout] 258 +                 let seek_offset = if result.is_err() { current } else { current + buf.position() };
[INFO] [stdout] 259 +                 reader.seek(SeekFrom::Start(seek_offset))?;
[INFO] [stdout] 260 +                 result
[INFO] [stdout] 261 ~             }),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_syntax` has been removed
[INFO] [stdout]    --> src/parse/combinators.rs:249:19
[INFO] [stdout]     |
[INFO] [stdout] 249 |               func: box move |reader| {
[INFO] [stdout]     |  ___________________^
[INFO] [stdout] 250 | |                 // This is rather inefficient but I can't be bothered to think of a better solution at the moment.
[INFO] [stdout] 251 | |                 let mut buf = Cursor::new(vec![]);
[INFO] [stdout] 252 | |                 let current = reader.stream_position()?;
[INFO] [stdout] ...   |
[INFO] [stdout] 260 | |                 result
[INFO] [stdout] 261 | |             },
[INFO] [stdout]     | |_____________^
[INFO] [stdout]     |
[INFO] [stdout] help: use `Box::new()` instead
[INFO] [stdout]     |
[INFO] [stdout] 249 ~             func: Box::new(move |reader| {
[INFO] [stdout] 250 +                 // This is rather inefficient but I can't be bothered to think of a better solution at the moment.
[INFO] [stdout] 251 +                 let mut buf = Cursor::new(vec![]);
[INFO] [stdout] 252 +                 let current = reader.stream_position()?;
[INFO] [stdout] 253 +                 reader.read_to_end(buf.get_mut())?;
[INFO] [stdout] 254 + 
[INFO] [stdout] 255 +                 // Parse then seek the original reader to the correct position, taking into account backtracking and
[INFO] [stdout] 256 +                 // the result of the parse.
[INFO] [stdout] 257 +                 let result = parser.parse(&mut buf);
[INFO] [stdout] 258 +                 let seek_offset = if result.is_err() { current } else { current + buf.position() };
[INFO] [stdout] 259 +                 reader.seek(SeekFrom::Start(seek_offset))?;
[INFO] [stdout] 260 +                 result
[INFO] [stdout] 261 ~             }),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'seek_stream_len'
[INFO] [stdout]    --> src/parse/pos_reader.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 | /     fn stream_len(&mut self) -> io::Result<u64> {
[INFO] [stdout] 118 | |         Ok(self.stream_len)
[INFO] [stdout] 119 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #59359 <https://github.com/rust-lang/rust/issues/59359> for more information
[INFO] [stdout]     = help: add `#![feature(seek_stream_len)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'seek_stream_len'
[INFO] [stdout]    --> src/parse/pos_reader.rs:117:5
[INFO] [stdout]     |
[INFO] [stdout] 117 | /     fn stream_len(&mut self) -> io::Result<u64> {
[INFO] [stdout] 118 | |         Ok(self.stream_len)
[INFO] [stdout] 119 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout]     |
[INFO] [stdout]     = note: see issue #59359 <https://github.com/rust-lang/rust/issues/59359> for more information
[INFO] [stdout]     = help: add `#![feature(seek_stream_len)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `seek_convenience` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(seek_convenience)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `seek_convenience` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/main.rs:2:12
[INFO] [stdout]   |
[INFO] [stdout] 2 | #![feature(seek_convenience)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'seek_stream_len'
[INFO] [stdout]   --> src/parse/pos_reader.rs:26:37
[INFO] [stdout]    |
[INFO] [stdout] 26 |             let stream_len = reader.stream_len().unwrap();
[INFO] [stdout]    |                                     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #59359 <https://github.com/rust-lang/rust/issues/59359> for more information
[INFO] [stdout]    = help: add `#![feature(seek_stream_len)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0658]: use of unstable library feature 'seek_stream_len'
[INFO] [stdout]   --> src/parse/pos_reader.rs:26:37
[INFO] [stdout]    |
[INFO] [stdout] 26 |             let stream_len = reader.stream_len().unwrap();
[INFO] [stdout]    |                                     ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: see issue #59359 <https://github.com/rust-lang/rust/issues/59359> for more information
[INFO] [stdout]    = help: add `#![feature(seek_stream_len)]` to the crate attributes to enable
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0557, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0557, E0658.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0557`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `knot` (bin "knot") due to 5 previous errors; 1 warning emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `knot` (bin "knot" test) due to 5 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "a2fc22eb7c89979d3a6e721d5a1726f27ac68d16b4d6556135044913c4a9436e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2fc22eb7c89979d3a6e721d5a1726f27ac68d16b4d6556135044913c4a9436e", kill_on_drop: false }`
[INFO] [stdout] a2fc22eb7c89979d3a6e721d5a1726f27ac68d16b4d6556135044913c4a9436e
