[INFO] fetching crate uvm_install_core 0.9.3...
[INFO] checking uvm_install_core-0.9.3 against try#c387b04bf028733cd561d62128c8a5eee4bc1458+rustflags=-Dtail_expr_drop_order for pr-130930
[INFO] extracting crate uvm_install_core 0.9.3 into /workspace/builds/worker-1-tc2/source
[INFO] validating manifest of crates.io crate uvm_install_core 0.9.3 on toolchain c387b04bf028733cd561d62128c8a5eee4bc1458
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate uvm_install_core 0.9.3
[INFO] finished tweaking crates.io crate uvm_install_core 0.9.3
[INFO] tweaked toml for crates.io crate uvm_install_core 0.9.3 written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 231 packages to latest compatible versions
[INFO] [stderr]       Adding arrayvec v0.4.12 (available: v0.7.6)
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[INFO] [stderr]       Adding itertools v0.9.0 (available: v0.13.0)
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[INFO] [stderr]       Adding linux-raw-sys v0.4.14 (available: v0.6.5)
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[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2561f8c62fa33420145e0b57e7125deff5360ef4fb765055e8cf2665836cb56c
[INFO] running `Command { std: "docker" "start" "-a" "2561f8c62fa33420145e0b57e7125deff5360ef4fb765055e8cf2665836cb56c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2561f8c62fa33420145e0b57e7125deff5360ef4fb765055e8cf2665836cb56c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2561f8c62fa33420145e0b57e7125deff5360ef4fb765055e8cf2665836cb56c", kill_on_drop: false }`
[INFO] [stdout] 2561f8c62fa33420145e0b57e7125deff5360ef4fb765055e8cf2665836cb56c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+c387b04bf028733cd561d62128c8a5eee4bc1458" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 18518a29ea0ee6111aac89a9cd6be96fd44a278a16090fcbe4d9840b32564ff1
[INFO] running `Command { std: "docker" "start" "-a" "18518a29ea0ee6111aac89a9cd6be96fd44a278a16090fcbe4d9840b32564ff1", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]     Checking object v0.36.4
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]    Compiling bzip2-sys v0.1.11+1.0.8
[INFO] [stderr]     Checking want v0.2.0
[INFO] [stderr]     Checking generic-array v0.12.4
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking serde_json v1.0.128
[INFO] [stderr]     Checking h2 v0.1.26
[INFO] [stderr]     Checking rustix v0.38.37
[INFO] [stderr]     Checking block-padding v0.1.5
[INFO] [stderr]     Checking tokio-reactor v0.1.12
[INFO] [stderr]     Checking native-tls v0.2.12
[INFO] [stderr]    Compiling error-chain v0.12.4
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]    Compiling plist v0.3.0
[INFO] [stderr]     Checking bzip2 v0.4.4
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking base64 v0.9.3
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[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking digest v0.8.1
[INFO] [stderr]     Checking hex v0.3.2
[INFO] [stderr]     Checking result v1.0.0
[INFO] [stderr]     Checking opaque-debug v0.2.3
[INFO] [stderr]     Checking md-5 v0.8.0
[INFO] [stderr]     Checking serde_ini v0.2.0
[INFO] [stderr]     Checking serde_yaml v0.8.26
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[INFO] [stderr]     Checking tempfile v3.13.0
[INFO] [stderr]     Checking hex-serde v0.1.0
[INFO] [stderr]     Checking dirs-2 v3.0.1
[INFO] [stderr]     Checking cluFlock v1.2.7
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking uvm_move_dir v0.1.1
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]     Checking hyper v0.12.36
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling derive_deref v1.1.1
[INFO] [stderr]     Checking backtrace v0.3.74
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking cookie_store v0.7.0
[INFO] [stderr]     Checking hyper-tls v0.3.2
[INFO] [stderr]     Checking reqwest v0.9.24
[INFO] [stderr]     Checking uvm_core v0.13.3
[INFO] [stderr]     Checking uvm_install_core v0.9.3 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]  --> src/sys/linux/pkg.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::Read;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead` and `Write`
[INFO] [stdout]  --> src/sys/linux/pkg.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{self, BufRead, BufReader, Write};
[INFO] [stdout]   |                     ^^^^^^^             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::Read`
[INFO] [stdout]  --> src/sys/linux/pkg.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::io::Read;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BufRead` and `Write`
[INFO] [stdout]  --> src/sys/linux/pkg.rs:5:21
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::{self, BufRead, BufReader, Write};
[INFO] [stdout]   |                     ^^^^^^^             ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/sys/linux/pkg.rs:65:21
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 let mut file = File::open(payload)?;
[INFO] [stdout]    |                     ----^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/sys/linux/pkg.rs:65:21
[INFO] [stdout]    |
[INFO] [stdout] 65 |                 let mut file = File::open(payload)?;
[INFO] [stdout]    |                     ----^^^^
[INFO] [stdout]    |                     |
[INFO] [stdout]    |                     help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.38s
[INFO] running `Command { std: "docker" "inspect" "18518a29ea0ee6111aac89a9cd6be96fd44a278a16090fcbe4d9840b32564ff1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18518a29ea0ee6111aac89a9cd6be96fd44a278a16090fcbe4d9840b32564ff1", kill_on_drop: false }`
[INFO] [stdout] 18518a29ea0ee6111aac89a9cd6be96fd44a278a16090fcbe4d9840b32564ff1