[INFO] cloning repository https://github.com/jacobjonsson/packet_2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jacobjonsson/packet_2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacobjonsson%2Fpacket_2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacobjonsson%2Fpacket_2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 33a00f329c20a1b0d03a74b56850bd9e88121420
[INFO] checking jacobjonsson/packet_2 against master#7dc9ff5c629753b6930ecfe9a0446538b8e25fb7 for pr-85387
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjacobjonsson%2Fpacket_2" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jacobjonsson/packet_2 on toolchain 7dc9ff5c629753b6930ecfe9a0446538b8e25fb7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jacobjonsson/packet_2
[INFO] finished tweaking git repo https://github.com/jacobjonsson/packet_2
[INFO] tweaked toml for git repo https://github.com/jacobjonsson/packet_2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/jacobjonsson/packet_2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e52de0f3ef8d83d20596f852cadbc3584c6d053ae1a7bf4cf36179c9788796d4
[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" "e52de0f3ef8d83d20596f852cadbc3584c6d053ae1a7bf4cf36179c9788796d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e52de0f3ef8d83d20596f852cadbc3584c6d053ae1a7bf4cf36179c9788796d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e52de0f3ef8d83d20596f852cadbc3584c6d053ae1a7bf4cf36179c9788796d4", kill_on_drop: false }`
[INFO] [stdout] e52de0f3ef8d83d20596f852cadbc3584c6d053ae1a7bf4cf36179c9788796d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+7dc9ff5c629753b6930ecfe9a0446538b8e25fb7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 81bf2e267242640f94468eb16dc884b24740accd34d397ad7986076eab54d061
[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" "81bf2e267242640f94468eb16dc884b24740accd34d397ad7986076eab54d061", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.71
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking unicode v0.1.0 (/opt/rustwide/workdir/src/unicode)
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking linked-hash-map v0.5.4
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking similar v1.3.0
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking bstr v0.2.16
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking terminal_size v0.1.16
[INFO] [stderr]     Checking console v0.14.1
[INFO] [stderr]     Checking regex v1.5.3
[INFO] [stderr]     Checking globset v0.4.6
[INFO] [stderr]     Checking span v0.1.0 (/opt/rustwide/workdir/src/span)
[INFO] [stderr]     Checking serde_yaml v0.8.17
[INFO] [stderr]     Checking js_error v0.1.0 (/opt/rustwide/workdir/src/js_error)
[INFO] [stderr]     Checking js_ast v0.1.0 (/opt/rustwide/workdir/src/js_ast)
[INFO] [stderr]     Checking js_lexer v0.1.0 (/opt/rustwide/workdir/src/js_lexer)
[INFO] [stderr]     Checking insta v1.7.1
[INFO] [stderr]     Checking js_parser v0.1.0 (/opt/rustwide/workdir/src/js_parser)
[INFO] [stdout] warning: struct is never constructed: `Lexer`
[INFO] [stdout]  --> src/js_parser/src/lexer/mod.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Lexer<'a> {
[INFO] [stdout]   |            ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/js_parser/src/lexer/mod.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub fn new(source: &'a str) -> Lexer {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `step`
[INFO] [stdout]   --> src/js_parser/src/lexer/mod.rs:32:8
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn step(&mut self) {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `span`
[INFO] [stdout]   --> src/js_parser/src/lexer/mod.rs:43:12
[INFO] [stdout]    |
[INFO] [stdout] 43 |     pub fn span(&self) -> Span {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `next`
[INFO] [stdout]   --> src/js_parser/src/lexer/mod.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 51 |     pub fn next(&mut self) -> Result<(), Error> {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_identifier_start`
[INFO] [stdout]    --> src/js_parser/src/lexer/mod.rs:398:15
[INFO] [stdout]     |
[INFO] [stdout] 398 | pub(crate) fn is_identifier_start(c: char) -> bool {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_identifier_continue`
[INFO] [stdout]    --> src/js_parser/src/lexer/mod.rs:413:15
[INFO] [stdout]     |
[INFO] [stdout] 413 | pub(crate) fn is_identifier_continue(c: char) -> bool {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_whitespace`
[INFO] [stdout]    --> src/js_parser/src/lexer/mod.rs:430:15
[INFO] [stdout]     |
[INFO] [stdout] 430 | pub(crate) fn is_whitespace(c: char) -> bool {
[INFO] [stdout]     |               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_line_terminator`
[INFO] [stdout]    --> src/js_parser/src/lexer/mod.rs:460:15
[INFO] [stdout]     |
[INFO] [stdout] 460 | pub(crate) fn is_line_terminator(c: char) -> bool {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_identifier_start`
[INFO] [stdout]    --> src/js_parser/src/lexer/mod.rs:398:15
[INFO] [stdout]     |
[INFO] [stdout] 398 | pub(crate) fn is_identifier_start(c: char) -> bool {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_identifier_continue`
[INFO] [stdout]    --> src/js_parser/src/lexer/mod.rs:413:15
[INFO] [stdout]     |
[INFO] [stdout] 413 | pub(crate) fn is_identifier_continue(c: char) -> bool {
[INFO] [stdout]     |               ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `is_whitespace`
[INFO] [stdout]    --> src/js_parser/src/lexer/mod.rs:430:15
[INFO] [stdout]     |
[INFO] [stdout] 430 | pub(crate) fn is_whitespace(c: char) -> bool {
[INFO] [stdout]     |               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 28.62s
[INFO] running `Command { std: "docker" "inspect" "81bf2e267242640f94468eb16dc884b24740accd34d397ad7986076eab54d061", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81bf2e267242640f94468eb16dc884b24740accd34d397ad7986076eab54d061", kill_on_drop: false }`
[INFO] [stdout] 81bf2e267242640f94468eb16dc884b24740accd34d397ad7986076eab54d061