[INFO] fetching crate constant_sandbox 0.1.0...
[INFO] checking constant_sandbox-0.1.0 against master#38352b01ae4af9300be03b805d6db68c45e51068 for pr-129864
[INFO] extracting crate constant_sandbox 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate constant_sandbox 0.1.0 on toolchain 38352b01ae4af9300be03b805d6db68c45e51068
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate constant_sandbox 0.1.0
[INFO] finished tweaking crates.io crate constant_sandbox 0.1.0
[INFO] tweaked toml for crates.io crate constant_sandbox 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate constant_sandbox 0.1.0 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" "+38352b01ae4af9300be03b805d6db68c45e51068" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded once_cell v1.5.2
[INFO] [stderr]   Downloaded dtoa v0.4.7
[INFO] [stderr]   Downloaded serde_yaml v0.8.16
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.1
[INFO] [stderr]   Downloaded serde_derive v1.0.123
[INFO] [stderr]   Downloaded serde v1.0.123
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.0
[INFO] [stderr]   Downloaded syn v1.0.60
[INFO] [stderr]   Downloaded lib-ruby-parser v3.0.0
[INFO] [stderr]   Downloaded regex v1.4.3
[INFO] [stderr]   Downloaded regex-syntax v0.6.22
[INFO] [stderr]   Downloaded libc v0.2.84
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 65372a558eab0b160d5e26fd561fae0d2fbb1392ef88a4f7dfb9e32447b660db
[INFO] running `Command { std: "docker" "start" "-a" "65372a558eab0b160d5e26fd561fae0d2fbb1392ef88a4f7dfb9e32447b660db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "65372a558eab0b160d5e26fd561fae0d2fbb1392ef88a4f7dfb9e32447b660db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "65372a558eab0b160d5e26fd561fae0d2fbb1392ef88a4f7dfb9e32447b660db", kill_on_drop: false }`
[INFO] [stdout] 65372a558eab0b160d5e26fd561fae0d2fbb1392ef88a4f7dfb9e32447b660db
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+38352b01ae4af9300be03b805d6db68c45e51068" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0a0729f16e0d544380ccf39436dc9bd4146f9733da427d853d2ff6797fa5f041
[INFO] running `Command { std: "docker" "start" "-a" "0a0729f16e0d544380ccf39436dc9bd4146f9733da427d853d2ff6797fa5f041", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.84
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling serde_derive v1.0.123
[INFO] [stderr]    Compiling serde v1.0.123
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking dtoa v0.4.7
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking regex-syntax v0.6.22
[INFO] [stderr]     Checking glob v0.3.0
[INFO] [stderr]     Checking lib-ruby-parser v3.0.0
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]     Checking serde_yaml v0.8.16
[INFO] [stderr]     Checking constant_sandbox v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `line` and `lines` are never read
[INFO] [stdout]   --> src/parser/mod.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Definition {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub line: usize,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 15 |     pub lines: usize,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `line` and `lines` are never read
[INFO] [stdout]   --> src/parser/mod.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Definition {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 14 |     pub line: usize,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout] 15 |     pub lines: usize,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 11.69s
[INFO] running `Command { std: "docker" "inspect" "0a0729f16e0d544380ccf39436dc9bd4146f9733da427d853d2ff6797fa5f041", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a0729f16e0d544380ccf39436dc9bd4146f9733da427d853d2ff6797fa5f041", kill_on_drop: false }`
[INFO] [stdout] 0a0729f16e0d544380ccf39436dc9bd4146f9733da427d853d2ff6797fa5f041