[INFO] cloning repository https://github.com/JamesWP/compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JamesWP/compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamesWP%2Fcompiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamesWP%2Fcompiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2c7f4892aba75baead227b30e6c5bb9d5d1b006a
[INFO] building JamesWP/compiler against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJamesWP%2Fcompiler" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JamesWP/compiler on toolchain 11663cd3bfefef7d34e8f0892c250bf698049392
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JamesWP/compiler
[INFO] finished tweaking git repo https://github.com/JamesWP/compiler
[INFO] tweaked toml for git repo https://github.com/JamesWP/compiler written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/JamesWP/compiler 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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cc13ce895cf06aad8e0cdcd779e906c4ca7f0d320df94ef77514045cabd197cf
[INFO] running `Command { std: "docker" "start" "-a" "cc13ce895cf06aad8e0cdcd779e906c4ca7f0d320df94ef77514045cabd197cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cc13ce895cf06aad8e0cdcd779e906c4ca7f0d320df94ef77514045cabd197cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cc13ce895cf06aad8e0cdcd779e906c4ca7f0d320df94ef77514045cabd197cf", kill_on_drop: false }`
[INFO] [stdout] cc13ce895cf06aad8e0cdcd779e906c4ca7f0d320df94ef77514045cabd197cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bfcb4e54dc5a1f63dda1f151aebd09954ae717b4b255ebf253221ced2810512e
[INFO] running `Command { std: "docker" "start" "-a" "bfcb4e54dc5a1f63dda1f151aebd09954ae717b4b255ebf253221ced2810512e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.103
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling flate2 v1.0.22
[INFO] [stderr]    Compiling object v0.26.2
[INFO] [stderr]    Compiling compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `source` is never read
[INFO] [stdout]   --> src/ast.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub struct Token {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub source: Option<SourceFile>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_memory` and `reg` are never used
[INFO] [stdout]    --> src/platform.rs:124:8
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub trait Operand: Display {
[INFO] [stdout]     |           ------- methods in this trait
[INFO] [stdout] 124 |     fn is_memory(&self) -> bool;
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 125 |     fn reg(&self) -> Option<&X86_64Reg>;
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/source.rs:30:57
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let mut open_file = std::fs::File::open(filename.clone()).map_err(|err| SourceError {
[INFO] [stdout]    |                                                         ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.62s
[INFO] running `Command { std: "docker" "inspect" "bfcb4e54dc5a1f63dda1f151aebd09954ae717b4b255ebf253221ced2810512e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bfcb4e54dc5a1f63dda1f151aebd09954ae717b4b255ebf253221ced2810512e", kill_on_drop: false }`
[INFO] [stdout] bfcb4e54dc5a1f63dda1f151aebd09954ae717b4b255ebf253221ced2810512e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0f01b2f54ae4de89c3d96c83f79ab1796fe3ce602115a316c4b0c53957ffcd14
[INFO] running `Command { std: "docker" "start" "-a" "0f01b2f54ae4de89c3d96c83f79ab1796fe3ce602115a316c4b0c53957ffcd14", kill_on_drop: false }`
[INFO] [stderr]    Compiling compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field `source` is never read
[INFO] [stdout]   --> src/ast.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub struct Token {
[INFO] [stdout]    |            ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub source: Option<SourceFile>,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_memory` and `reg` are never used
[INFO] [stdout]    --> src/platform.rs:124:8
[INFO] [stdout]     |
[INFO] [stdout] 123 | pub trait Operand: Display {
[INFO] [stdout]     |           ------- methods in this trait
[INFO] [stdout] 124 |     fn is_memory(&self) -> bool;
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 125 |     fn reg(&self) -> Option<&X86_64Reg>;
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/source.rs:30:57
[INFO] [stdout]    |
[INFO] [stdout] 30 |         let mut open_file = std::fs::File::open(filename.clone()).map_err(|err| SourceError {
[INFO] [stdout]    |                                                         ^^^^^^^^ help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `Command { std: "docker" "inspect" "0f01b2f54ae4de89c3d96c83f79ab1796fe3ce602115a316c4b0c53957ffcd14", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f01b2f54ae4de89c3d96c83f79ab1796fe3ce602115a316c4b0c53957ffcd14", kill_on_drop: false }`
[INFO] [stdout] 0f01b2f54ae4de89c3d96c83f79ab1796fe3ce602115a316c4b0c53957ffcd14