[INFO] fetching crate clap_up 0.0.0...
[INFO] testing clap_up-0.0.0 against 1.49.0 for beta-1.50-1
[INFO] extracting crate clap_up 0.0.0 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate clap_up 0.0.0 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate clap_up 0.0.0
[INFO] finished tweaking crates.io crate clap_up 0.0.0
[INFO] tweaked toml for crates.io crate clap_up 0.0.0 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f097cb335f415063be47b4f126ac1d28f4c1cfcc0992d6a10df9e997a3e8ee41
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f097cb335f415063be47b4f126ac1d28f4c1cfcc0992d6a10df9e997a3e8ee41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f097cb335f415063be47b4f126ac1d28f4c1cfcc0992d6a10df9e997a3e8ee41", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f097cb335f415063be47b4f126ac1d28f4c1cfcc0992d6a10df9e997a3e8ee41", kill_on_drop: false }`
[INFO] [stdout] f097cb335f415063be47b4f126ac1d28f4c1cfcc0992d6a10df9e997a3e8ee41
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4957422f72bd2ea1410759ff40b8c734abecd44cd840872dfcc8b472d6665004
[INFO] running `Command { std: "docker" "start" "-a" "4957422f72bd2ea1410759ff40b8c734abecd44cd840872dfcc8b472d6665004", kill_on_drop: false }`
[INFO] [stderr]    Compiling ra_ap_stdx v0.0.16
[INFO] [stderr]    Compiling text-size v1.0.0
[INFO] [stderr]    Compiling drop_bomb v0.1.5
[INFO] [stderr]    Compiling thin-dst v1.1.0
[INFO] [stderr]    Compiling fst v0.4.5
[INFO] [stderr]    Compiling ra_ap_paths v0.0.16
[INFO] [stderr]    Compiling ra_ap_arena v0.0.16
[INFO] [stderr]    Compiling scoped-tls v1.0.0
[INFO] [stderr]    Compiling jod-thread v0.1.2
[INFO] [stderr]    Compiling pulldown-cmark v0.7.2
[INFO] [stderr]    Compiling home v0.5.3
[INFO] [stderr]    Compiling plain v0.2.3
[INFO] [stderr]    Compiling ra_ap_rust-analyzer v0.0.16
[INFO] [stderr]    Compiling pico-args v0.3.4
[INFO] [stderr]    Compiling rustc-ap-rustc_lexer v673.0.0
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]    Compiling regex v1.4.2
[INFO] [stderr]    Compiling ra_ap_parser v0.0.16
[INFO] [stderr]    Compiling ra_ap_text_edit v0.0.16
[INFO] [stderr]    Compiling perf-event-open-sys v1.0.1
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling termios v0.3.3
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling env_logger v0.7.1
[INFO] [stderr]    Compiling regex-automata v0.1.9
[INFO] [stderr]    Compiling threadpool v1.8.1
[INFO] [stderr]    Compiling ra_ap_toolchain v0.0.16
[INFO] [stderr]    Compiling salsa-macros v0.15.2
[INFO] [stderr]    Compiling scroll_derive v0.10.4
[INFO] [stderr]    Compiling serde_repr v0.1.6
[INFO] [stderr]    Compiling tracing v0.1.22
[INFO] [stderr]    Compiling chalk-derive v0.27.0
[INFO] [stderr]    Compiling perf-event v0.4.6
[INFO] [stderr]    Compiling smol_str v0.1.17
[INFO] [stderr]    Compiling semver v0.10.0
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]    Compiling ra_ap_test_utils v0.0.16
[INFO] [stderr]    Compiling lsp-server v0.3.4
[INFO] [stderr]    Compiling ra_ap_profile v0.0.16
[INFO] [stderr]    Compiling ra_ap_tt v0.0.16
[INFO] [stderr]    Compiling rowan v0.10.0
[INFO] [stderr]    Compiling cargo_metadata v0.11.4
[INFO] [stderr]    Compiling console v0.11.3
[INFO] [stderr]    Compiling ra_ap_cfg v0.0.16
[INFO] [stderr]    Compiling ra_ap_proc_macro_api v0.0.16
[INFO] [stderr]    Compiling matchers v0.0.1
[INFO] [stderr]    Compiling ra_ap_vfs v0.0.16
[INFO] [stderr]    Compiling pulldown-cmark-to-cmark v5.0.0
[INFO] [stderr]    Compiling ra_ap_syntax v0.0.16
[INFO] [stderr]    Compiling lsp-types v0.81.0
[INFO] [stderr]    Compiling tracing-subscriber v0.2.15
[INFO] [stderr]    Compiling chalk-ir v0.27.0
[INFO] [stderr]    Compiling scroll v0.10.2
[INFO] [stderr]    Compiling ra_ap_vfs-notify v0.0.16
[INFO] [stderr]    Compiling ra_ap_flycheck v0.0.16
[INFO] [stderr]    Compiling goblin v0.2.3
[INFO] [stderr]    Compiling salsa v0.15.2
[INFO] [stderr]    Compiling tracing-tree v0.1.6
[INFO] [stderr]    Compiling chalk-solve v0.27.0
[INFO] [stderr]    Compiling ra_ap_mbe v0.0.16
[INFO] [stderr]    Compiling ra_ap_base_db v0.0.16
[INFO] [stderr]    Compiling rust-visitor v0.2.1
[INFO] [stderr]    Compiling ra_ap_project_model v0.0.16
[INFO] [stderr]    Compiling ra_ap_hir_expand v0.0.16
[INFO] [stderr]    Compiling chalk-recursive v0.27.0
[INFO] [stderr]    Compiling ra_ap_hir_def v0.0.16
[INFO] [stderr]    Compiling ra_ap_proc_macro_srv v0.0.16
[INFO] [stderr]    Compiling ra_ap_hir_ty v0.0.16
[INFO] [stderr]    Compiling ra_ap_hir v0.0.16
[INFO] [stderr]    Compiling ra_ap_ide_db v0.0.16
[INFO] [stderr]    Compiling ra_ap_ssr v0.0.16
[INFO] [stderr]    Compiling ra_ap_assists v0.0.16
[INFO] [stderr]    Compiling ra_ap_ide v0.0.16
[INFO] [stderr]    Compiling cargo-up v0.0.4
[INFO] [stderr]    Compiling clap_up v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `name_ref`
[INFO] [stdout]   --> src/lib.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |     if let Some(name_ref) = method_call_expr.name_ref() {
[INFO] [stdout]    |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_name_ref`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `upgrader`
[INFO] [stdout]   --> src/lib.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     upgrader: &mut Upgrader,
[INFO] [stdout]    |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_upgrader`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `semantics`
[INFO] [stdout]   --> src/lib.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     semantics: &Semantics,
[INFO] [stdout]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_semantics`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4m 02s
[INFO] running `Command { std: "docker" "inspect" "4957422f72bd2ea1410759ff40b8c734abecd44cd840872dfcc8b472d6665004", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4957422f72bd2ea1410759ff40b8c734abecd44cd840872dfcc8b472d6665004", kill_on_drop: false }`
[INFO] [stdout] 4957422f72bd2ea1410759ff40b8c734abecd44cd840872dfcc8b472d6665004
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08d43dac1d64697e6c475e11dd34cc5c2b3b2a5e107cc9097ce23c31e05321f1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "08d43dac1d64697e6c475e11dd34cc5c2b3b2a5e107cc9097ce23c31e05321f1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling clap_up v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `name_ref`
[INFO] [stdout]   --> src/lib.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |     if let Some(name_ref) = method_call_expr.name_ref() {
[INFO] [stdout]    |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_name_ref`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `upgrader`
[INFO] [stdout]   --> src/lib.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     upgrader: &mut Upgrader,
[INFO] [stdout]    |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_upgrader`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `semantics`
[INFO] [stdout]   --> src/lib.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     semantics: &Semantics,
[INFO] [stdout]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_semantics`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name_ref`
[INFO] [stdout]   --> src/lib.rs:99:17
[INFO] [stdout]    |
[INFO] [stdout] 99 |     if let Some(name_ref) = method_call_expr.name_ref() {
[INFO] [stdout]    |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_name_ref`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `upgrader`
[INFO] [stdout]   --> src/lib.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 95 |     upgrader: &mut Upgrader,
[INFO] [stdout]    |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_upgrader`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `semantics`
[INFO] [stdout]   --> src/lib.rs:97:5
[INFO] [stdout]    |
[INFO] [stdout] 97 |     semantics: &Semantics,
[INFO] [stdout]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_semantics`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.55s
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "08d43dac1d64697e6c475e11dd34cc5c2b3b2a5e107cc9097ce23c31e05321f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08d43dac1d64697e6c475e11dd34cc5c2b3b2a5e107cc9097ce23c31e05321f1", kill_on_drop: false }`
[INFO] [stdout] 08d43dac1d64697e6c475e11dd34cc5c2b3b2a5e107cc9097ce23c31e05321f1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 95cbc9864e9f87d0e71ab70ac8f2e34e40c4d1020652beb62834a2daf27dfa6b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "95cbc9864e9f87d0e71ab70ac8f2e34e40c4d1020652beb62834a2daf27dfa6b", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `name_ref`
[INFO] [stderr]   --> src/lib.rs:99:17
[INFO] [stderr]    |
[INFO] [stderr] 99 |     if let Some(name_ref) = method_call_expr.name_ref() {
[INFO] [stderr]    |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_name_ref`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `upgrader`
[INFO] [stderr]   --> src/lib.rs:95:5
[INFO] [stderr]    |
[INFO] [stderr] 95 |     upgrader: &mut Upgrader,
[INFO] [stderr]    |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_upgrader`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `semantics`
[INFO] [stderr]   --> src/lib.rs:97:5
[INFO] [stderr]    |
[INFO] [stderr] 97 |     semantics: &Semantics,
[INFO] [stderr]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_semantics`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name_ref`
[INFO] [stderr]   --> src/lib.rs:99:17
[INFO] [stderr]    |
[INFO] [stderr] 99 |     if let Some(name_ref) = method_call_expr.name_ref() {
[INFO] [stderr]    |                 ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_name_ref`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `upgrader`
[INFO] [stderr]   --> src/lib.rs:95:5
[INFO] [stderr]    |
[INFO] [stderr] 95 |     upgrader: &mut Upgrader,
[INFO] [stderr]    |     ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_upgrader`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `semantics`
[INFO] [stderr]   --> src/lib.rs:97:5
[INFO] [stderr]    |
[INFO] [stderr] 97 |     semantics: &Semantics,
[INFO] [stderr]    |     ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_semantics`
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.14s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/clap_up-51421d02140138ce
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests clap_up
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "95cbc9864e9f87d0e71ab70ac8f2e34e40c4d1020652beb62834a2daf27dfa6b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "95cbc9864e9f87d0e71ab70ac8f2e34e40c4d1020652beb62834a2daf27dfa6b", kill_on_drop: false }`
[INFO] [stdout] 95cbc9864e9f87d0e71ab70ac8f2e34e40c4d1020652beb62834a2daf27dfa6b