[INFO] cloning repository https://github.com/jamagin/silkybear
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jamagin/silkybear" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamagin%2Fsilkybear", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjamagin%2Fsilkybear'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 78440154ac875e1bd962545c75f269dfa8ac224b
[INFO] building jamagin/silkybear 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%2Fjamagin%2Fsilkybear" "/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/jamagin/silkybear 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/jamagin/silkybear
[INFO] finished tweaking git repo https://github.com/jamagin/silkybear
[INFO] tweaked toml for git repo https://github.com/jamagin/silkybear written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jamagin/silkybear 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] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded fork v0.1.23
[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] 797bd4e4d2fff1d744ded1fae3b2144bd0d8927bcc66b82b7f6e8cc34b6844ad
[INFO] running `Command { std: "docker" "start" "-a" "797bd4e4d2fff1d744ded1fae3b2144bd0d8927bcc66b82b7f6e8cc34b6844ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "797bd4e4d2fff1d744ded1fae3b2144bd0d8927bcc66b82b7f6e8cc34b6844ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "797bd4e4d2fff1d744ded1fae3b2144bd0d8927bcc66b82b7f6e8cc34b6844ad", kill_on_drop: false }`
[INFO] [stdout] 797bd4e4d2fff1d744ded1fae3b2144bd0d8927bcc66b82b7f6e8cc34b6844ad
[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] 86d67ca46708b4cf2126327f4d9ad60aca0814ce68f40b4f937c3e182bc14394
[INFO] running `Command { std: "docker" "start" "-a" "86d67ca46708b4cf2126327f4d9ad60aca0814ce68f40b4f937c3e182bc14394", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling elf v0.7.4
[INFO] [stderr]    Compiling errno v0.2.8
[INFO] [stderr]    Compiling fork v0.1.23
[INFO] [stderr]    Compiling exec v0.3.1
[INFO] [stderr]    Compiling silkybear v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `text_shdr_index` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let mut text_shdr_index = 0;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_text_shdr_index` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `strtab`
[INFO] [stdout]   --> src/main.rs:39:18
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let (symtab, strtab) = (common.symtab.expect("symbols not found"), common.symtab_strs.expect("symbols string table not found"));
[INFO] [stdout]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_strtab`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.95s
[INFO] running `Command { std: "docker" "inspect" "86d67ca46708b4cf2126327f4d9ad60aca0814ce68f40b4f937c3e182bc14394", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "86d67ca46708b4cf2126327f4d9ad60aca0814ce68f40b4f937c3e182bc14394", kill_on_drop: false }`
[INFO] [stdout] 86d67ca46708b4cf2126327f4d9ad60aca0814ce68f40b4f937c3e182bc14394
[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] f63b3a8afbf7f8110d694a0b48f86badb03d0cc865e7a02ab7f5c7d37c66dfe5
[INFO] running `Command { std: "docker" "start" "-a" "f63b3a8afbf7f8110d694a0b48f86badb03d0cc865e7a02ab7f5c7d37c66dfe5", kill_on_drop: false }`
[INFO] [stderr]    Compiling silkybear v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `text_shdr_index` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let mut text_shdr_index = 0;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_text_shdr_index` instead
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `strtab`
[INFO] [stdout]   --> src/main.rs:39:18
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let (symtab, strtab) = (common.symtab.expect("symbols not found"), common.symtab_strs.expect("symbols string table not found"));
[INFO] [stdout]    |                  ^^^^^^ help: if this is intentional, prefix it with an underscore: `_strtab`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "f63b3a8afbf7f8110d694a0b48f86badb03d0cc865e7a02ab7f5c7d37c66dfe5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f63b3a8afbf7f8110d694a0b48f86badb03d0cc865e7a02ab7f5c7d37c66dfe5", kill_on_drop: false }`
[INFO] [stdout] f63b3a8afbf7f8110d694a0b48f86badb03d0cc865e7a02ab7f5c7d37c66dfe5