[INFO] cloning repository https://github.com/c0ntinua/pre-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/c0ntinua/pre-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc0ntinua%2Fpre-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc0ntinua%2Fpre-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f3705497c0e3d7b078fa3bcdb7b4cf64749b6faa
[INFO] checking c0ntinua/pre-rs/f3705497c0e3d7b078fa3bcdb7b4cf64749b6faa against try#96ad39d809ea5a132d223acdaa01b9a8d3a26348 for pr-129346
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fc0ntinua%2Fpre-rs" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/c0ntinua/pre-rs on toolchain 96ad39d809ea5a132d223acdaa01b9a8d3a26348
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+96ad39d809ea5a132d223acdaa01b9a8d3a26348" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/c0ntinua/pre-rs
[INFO] finished tweaking git repo https://github.com/c0ntinua/pre-rs
[INFO] tweaked toml for git repo https://github.com/c0ntinua/pre-rs written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/c0ntinua/pre-rs 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" "+96ad39d809ea5a132d223acdaa01b9a8d3a26348" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:96c0aa5895ecf336b730ef27bcdde6e21027415df19888aad3cf1448e5d65d90" "/opt/rustwide/cargo-home/bin/cargo" "+96ad39d809ea5a132d223acdaa01b9a8d3a26348" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 37e1cc57dea4e6e7ce94f90fafd78f49b3fd1a3dcb117f8a01014ae4942ea97f
[INFO] running `Command { std: "docker" "start" "-a" "37e1cc57dea4e6e7ce94f90fafd78f49b3fd1a3dcb117f8a01014ae4942ea97f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "37e1cc57dea4e6e7ce94f90fafd78f49b3fd1a3dcb117f8a01014ae4942ea97f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37e1cc57dea4e6e7ce94f90fafd78f49b3fd1a3dcb117f8a01014ae4942ea97f", kill_on_drop: false }`
[INFO] [stdout] 37e1cc57dea4e6e7ce94f90fafd78f49b3fd1a3dcb117f8a01014ae4942ea97f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:96c0aa5895ecf336b730ef27bcdde6e21027415df19888aad3cf1448e5d65d90" "/opt/rustwide/cargo-home/bin/cargo" "+96ad39d809ea5a132d223acdaa01b9a8d3a26348" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1612f358b485e0c2e540ba76f38d1baba861dff4df732de9c9cf164e333db810
[INFO] running `Command { std: "docker" "start" "-a" "1612f358b485e0c2e540ba76f38d1baba861dff4df732de9c9cf164e333db810", kill_on_drop: false }`
[INFO] [stderr]     Checking pre-wasi v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/string.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::string::*`
[INFO] [stdout]  --> src/print.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::string::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Write`
[INFO] [stdout]  --> src/string.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::Write;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::string::*`
[INFO] [stdout]  --> src/print.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::string::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Code` is never used
[INFO] [stdout]  --> src/types.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub type Code = Vec<Symbol>;
[INFO] [stdout]   |          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `string_from_file` is never used
[INFO] [stdout]   --> src/string.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub fn string_from_file(filename : &str) -> String  {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type alias `Code` is never used
[INFO] [stdout]  --> src/types.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub type Code = Vec<Symbol>;
[INFO] [stdout]   |          ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `string_from_file` is never used
[INFO] [stdout]   --> src/string.rs:68:8
[INFO] [stdout]    |
[INFO] [stdout] 68 | pub fn string_from_file(filename : &str) -> String  {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.13s
[INFO] running `Command { std: "docker" "inspect" "1612f358b485e0c2e540ba76f38d1baba861dff4df732de9c9cf164e333db810", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1612f358b485e0c2e540ba76f38d1baba861dff4df732de9c9cf164e333db810", kill_on_drop: false }`
[INFO] [stdout] 1612f358b485e0c2e540ba76f38d1baba861dff4df732de9c9cf164e333db810