[INFO] cloning repository https://github.com/juggernaut0/snek
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/juggernaut0/snek" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuggernaut0%2Fsnek", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuggernaut0%2Fsnek'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 49c64b3de6c848a7253d4c04dc9a5d46b5280139
[INFO] testing juggernaut0/snek against master#cdb45c87e2cd43495379f7e867e3cc15dcee9f93 for pr-145838-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjuggernaut0%2Fsnek" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/juggernaut0/snek
[INFO] finished tweaking git repo https://github.com/juggernaut0/snek
[INFO] tweaked toml for git repo https://github.com/juggernaut0/snek written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/juggernaut0/snek on toolchain cdb45c87e2cd43495379f7e867e3cc15dcee9f93
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/juggernaut0/snek 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" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9242afadaea833ca84dae78f9f443da3c242cf5beba8ee80804ee6ee89194417
[INFO] running `Command { std: "docker" "start" "-a" "9242afadaea833ca84dae78f9f443da3c242cf5beba8ee80804ee6ee89194417", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9242afadaea833ca84dae78f9f443da3c242cf5beba8ee80804ee6ee89194417", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9242afadaea833ca84dae78f9f443da3c242cf5beba8ee80804ee6ee89194417", kill_on_drop: false }`
[INFO] [stdout] 9242afadaea833ca84dae78f9f443da3c242cf5beba8ee80804ee6ee89194417
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8125f970360829f8f68666c099234265cc2b116876aa840e7476b04f6655e122
[INFO] running `Command { std: "docker" "start" "-a" "8125f970360829f8f68666c099234265cc2b116876aa840e7476b04f6655e122", kill_on_drop: false }`
[INFO] [stderr]    Compiling snek v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `IDENT`, `STRING`, `KEYWORD`, and `SYMBOL` are never constructed
[INFO] [stdout]    --> src/scanner.rs:171:5
[INFO] [stdout]     |
[INFO] [stdout] 168 | pub enum TokenName {
[INFO] [stdout]     |          --------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 171 |     IDENT,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 172 |     NUMBER,
[INFO] [stdout] 173 |     STRING,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 174 |     KEYWORD,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 175 |     SYMBOL,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TokenName` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `value`, `line`, and `col` are never read
[INFO] [stdout]    --> src/scanner.rs:182:5
[INFO] [stdout]     |
[INFO] [stdout] 180 | pub struct Token {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 181 |     name: TokenName,
[INFO] [stdout] 182 |     value: String,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 183 |     line: u32,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 184 |     col: u32
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `message`, `line`, and `col` are never read
[INFO] [stdout]   --> src/parse.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct ParseError {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 22 |     message: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 23 |     line: u32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 24 |     col: u32
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/scanner.rs:17:21
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(src: &str) -> Scanner {
[INFO] [stdout]    |                     ^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(src: &str) -> Scanner<'_> {
[INFO] [stdout]    |                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.40s
[INFO] running `Command { std: "docker" "inspect" "8125f970360829f8f68666c099234265cc2b116876aa840e7476b04f6655e122", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8125f970360829f8f68666c099234265cc2b116876aa840e7476b04f6655e122", kill_on_drop: false }`
[INFO] [stdout] 8125f970360829f8f68666c099234265cc2b116876aa840e7476b04f6655e122
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f1854db229aab784c9fc5a7d3f9e9a606335e932f37cb080f2f74d7ee82a831b
[INFO] running `Command { std: "docker" "start" "-a" "f1854db229aab784c9fc5a7d3f9e9a606335e932f37cb080f2f74d7ee82a831b", kill_on_drop: false }`
[INFO] [stderr]    Compiling snek v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variants `IDENT`, `STRING`, `KEYWORD`, and `SYMBOL` are never constructed
[INFO] [stdout]    --> src/scanner.rs:171:5
[INFO] [stdout]     |
[INFO] [stdout] 168 | pub enum TokenName {
[INFO] [stdout]     |          --------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 171 |     IDENT,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 172 |     NUMBER,
[INFO] [stdout] 173 |     STRING,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 174 |     KEYWORD,
[INFO] [stdout]     |     ^^^^^^^
[INFO] [stdout] 175 |     SYMBOL,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `TokenName` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `value`, `line`, and `col` are never read
[INFO] [stdout]    --> src/scanner.rs:182:5
[INFO] [stdout]     |
[INFO] [stdout] 180 | pub struct Token {
[INFO] [stdout]     |            ----- fields in this struct
[INFO] [stdout] 181 |     name: TokenName,
[INFO] [stdout] 182 |     value: String,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 183 |     line: u32,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 184 |     col: u32
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `message`, `line`, and `col` are never read
[INFO] [stdout]   --> src/parse.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct ParseError {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 22 |     message: String,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 23 |     line: u32,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 24 |     col: u32
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/scanner.rs:17:21
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(src: &str) -> Scanner {
[INFO] [stdout]    |                     ^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(src: &str) -> Scanner<'_> {
[INFO] [stdout]    |                                     ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.27s
[INFO] running `Command { std: "docker" "inspect" "f1854db229aab784c9fc5a7d3f9e9a606335e932f37cb080f2f74d7ee82a831b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1854db229aab784c9fc5a7d3f9e9a606335e932f37cb080f2f74d7ee82a831b", kill_on_drop: false }`
[INFO] [stdout] f1854db229aab784c9fc5a7d3f9e9a606335e932f37cb080f2f74d7ee82a831b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+cdb45c87e2cd43495379f7e867e3cc15dcee9f93" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7d0854ea3eb5539c90cbcea4fcb419e27f50a20ce7e5e3f2c611657e784bb66f
[INFO] running `Command { std: "docker" "start" "-a" "7d0854ea3eb5539c90cbcea4fcb419e27f50a20ce7e5e3f2c611657e784bb66f", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr] warning: variants `IDENT`, `STRING`, `KEYWORD`, and `SYMBOL` are never constructed
[INFO] [stderr]    --> src/scanner.rs:171:5
[INFO] [stderr]     |
[INFO] [stderr] 168 | pub enum TokenName {
[INFO] [stderr]     |          --------- variants in this enum
[INFO] [stderr] ...
[INFO] [stderr] 171 |     IDENT,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr] 172 |     NUMBER,
[INFO] [stderr] 173 |     STRING,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr] 174 |     KEYWORD,
[INFO] [stderr]     |     ^^^^^^^
[INFO] [stderr] 175 |     SYMBOL,
[INFO] [stderr]     |     ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `TokenName` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stderr]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `value`, `line`, and `col` are never read
[INFO] [stderr]    --> src/scanner.rs:182:5
[INFO] [stderr]     |
[INFO] [stderr] 180 | pub struct Token {
[INFO] [stderr]     |            ----- fields in this struct
[INFO] [stderr] 181 |     name: TokenName,
[INFO] [stderr] 182 |     value: String,
[INFO] [stderr]     |     ^^^^^
[INFO] [stderr] 183 |     line: u32,
[INFO] [stderr]     |     ^^^^
[INFO] [stderr] 184 |     col: u32
[INFO] [stderr]     |     ^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: fields `message`, `line`, and `col` are never read
[INFO] [stderr]   --> src/parse.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub struct ParseError {
[INFO] [stderr]    |            ---------- fields in this struct
[INFO] [stderr] 22 |     message: String,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr] 23 |     line: u32,
[INFO] [stderr]    |     ^^^^
[INFO] [stderr] 24 |     col: u32
[INFO] [stderr]    |     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stderr]   --> src/scanner.rs:17:21
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new(src: &str) -> Scanner {
[INFO] [stderr]    |                     ^^^^     ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |                     |
[INFO] [stderr]    |                     the lifetime is elided here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: use `'_` for type paths
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub fn new(src: &str) -> Scanner<'_> {
[INFO] [stderr]    |                                     ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `snek` (bin "snek" test) generated 4 warnings (run `cargo fix --bin "snek" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/snek-5ebe67de305e049c)
[INFO] running `Command { std: "docker" "inspect" "7d0854ea3eb5539c90cbcea4fcb419e27f50a20ce7e5e3f2c611657e784bb66f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d0854ea3eb5539c90cbcea4fcb419e27f50a20ce7e5e3f2c611657e784bb66f", kill_on_drop: false }`
[INFO] [stdout] 7d0854ea3eb5539c90cbcea4fcb419e27f50a20ce7e5e3f2c611657e784bb66f