[INFO] fetching crate bgzf_rust_reader 0.2.1...
[INFO] checking bgzf_rust_reader-0.2.1 against master#22572d0994593197593e2a1b7b18d720a9a349a7 for pr-126452-1
[INFO] extracting crate bgzf_rust_reader 0.2.1 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate bgzf_rust_reader 0.2.1 on toolchain 22572d0994593197593e2a1b7b18d720a9a349a7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bgzf_rust_reader 0.2.1
[INFO] finished tweaking crates.io crate bgzf_rust_reader 0.2.1
[INFO] tweaked toml for crates.io crate bgzf_rust_reader 0.2.1 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding byteorder v0.5.3 (latest: v1.5.0)
[INFO] [stderr]       Adding libdeflate-sys v0.7.5 (latest: v1.21.0)
[INFO] [stderr]       Adding libdeflater v0.7.5 (latest: v1.21.0)
[INFO] [stderr]       Adding positioned-io v0.2.2 (latest: v0.3.3)
[INFO] [stderr]       Adding winapi v0.2.8 (latest: v0.3.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded byteorder v0.5.3
[INFO] [stderr]   Downloaded positioned-io v0.2.2
[INFO] [stderr]   Downloaded libdeflater v0.7.5
[INFO] [stderr]   Downloaded libdeflate-sys v0.7.5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9fa412001b478a72fe4bb386c7c986b0714c0818cb175c12c1005e772e441952
[INFO] running `Command { std: "docker" "start" "-a" "9fa412001b478a72fe4bb386c7c986b0714c0818cb175c12c1005e772e441952", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9fa412001b478a72fe4bb386c7c986b0714c0818cb175c12c1005e772e441952", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9fa412001b478a72fe4bb386c7c986b0714c0818cb175c12c1005e772e441952", kill_on_drop: false }`
[INFO] [stdout] 9fa412001b478a72fe4bb386c7c986b0714c0818cb175c12c1005e772e441952
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+22572d0994593197593e2a1b7b18d720a9a349a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60d9a9531f5e38667aa13985b4065e9e43dfb75a260ac67dbc28d575f8c99c8d
[INFO] running `Command { std: "docker" "start" "-a" "60d9a9531f5e38667aa13985b4065e9e43dfb75a260ac67dbc28d575f8c99c8d", kill_on_drop: false }`
[INFO] [stderr]    Compiling libdeflate-sys v0.7.5
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking positioned-io v0.2.2
[INFO] [stderr]     Checking libdeflater v0.7.5
[INFO] [stderr]     Checking bgzf_rust_reader v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/lib.rs:426:11
[INFO] [stdout]     |
[INFO] [stdout] 426 |       Err(e) => {
[INFO] [stdout]     |           ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/integration_test.rs:22:3
[INFO] [stdout]    |
[INFO] [stdout] 22 |   reader.read_to(&mut test_buffer);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 22 |   let _ = reader.read_to(&mut test_buffer);
[INFO] [stdout]    |   +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.69s
[INFO] running `Command { std: "docker" "inspect" "60d9a9531f5e38667aa13985b4065e9e43dfb75a260ac67dbc28d575f8c99c8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60d9a9531f5e38667aa13985b4065e9e43dfb75a260ac67dbc28d575f8c99c8d", kill_on_drop: false }`
[INFO] [stdout] 60d9a9531f5e38667aa13985b4065e9e43dfb75a260ac67dbc28d575f8c99c8d
[INFO] checking bgzf_rust_reader-0.2.1 against try#6289438dbad80b1a0029c66dd3f6abf57c2c51be for pr-126452-1
[INFO] extracting crate bgzf_rust_reader 0.2.1 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate bgzf_rust_reader 0.2.1 on toolchain 6289438dbad80b1a0029c66dd3f6abf57c2c51be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate bgzf_rust_reader 0.2.1
[INFO] finished tweaking crates.io crate bgzf_rust_reader 0.2.1
[INFO] tweaked toml for crates.io crate bgzf_rust_reader 0.2.1 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 11 packages to latest compatible versions
[INFO] [stderr]       Adding byteorder v0.5.3 (latest: v1.5.0)
[INFO] [stderr]       Adding libdeflate-sys v0.7.5 (latest: v1.21.0)
[INFO] [stderr]       Adding libdeflater v0.7.5 (latest: v1.21.0)
[INFO] [stderr]       Adding positioned-io v0.2.2 (latest: v0.3.3)
[INFO] [stderr]       Adding winapi v0.2.8 (latest: v0.3.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1531a7437b27c95f6b8a0d30d8a55901f823b91196cad747f85c79975565a5cb
[INFO] running `Command { std: "docker" "start" "-a" "1531a7437b27c95f6b8a0d30d8a55901f823b91196cad747f85c79975565a5cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1531a7437b27c95f6b8a0d30d8a55901f823b91196cad747f85c79975565a5cb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1531a7437b27c95f6b8a0d30d8a55901f823b91196cad747f85c79975565a5cb", kill_on_drop: false }`
[INFO] [stdout] 1531a7437b27c95f6b8a0d30d8a55901f823b91196cad747f85c79975565a5cb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+6289438dbad80b1a0029c66dd3f6abf57c2c51be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c60fceb2efe1b0c0536849003d298a5f9638977eda783f176d8e53aaf92e5b6
[INFO] running `Command { std: "docker" "start" "-a" "0c60fceb2efe1b0c0536849003d298a5f9638977eda783f176d8e53aaf92e5b6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libdeflate-sys v0.7.5
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking positioned-io v0.2.2
[INFO] [stderr]     Checking libdeflater v0.7.5
[INFO] [stderr]     Checking bgzf_rust_reader v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/lib.rs:426:11
[INFO] [stdout]     |
[INFO] [stdout] 426 |       Err(e) => {
[INFO] [stdout]     |           ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> tests/integration_test.rs:22:3
[INFO] [stdout]    |
[INFO] [stdout] 22 |   reader.read_to(&mut test_buffer);
[INFO] [stdout]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 22 |   let _ = reader.read_to(&mut test_buffer);
[INFO] [stdout]    |   +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.18s
[INFO] running `Command { std: "docker" "inspect" "0c60fceb2efe1b0c0536849003d298a5f9638977eda783f176d8e53aaf92e5b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c60fceb2efe1b0c0536849003d298a5f9638977eda783f176d8e53aaf92e5b6", kill_on_drop: false }`
[INFO] [stdout] 0c60fceb2efe1b0c0536849003d298a5f9638977eda783f176d8e53aaf92e5b6