[INFO] fetching crate ast2str 1.4.1...
[INFO] testing ast2str-1.4.1 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] extracting crate ast2str 1.4.1 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate ast2str 1.4.1
[INFO] finished tweaking crates.io crate ast2str 1.4.1
[INFO] tweaked toml for crates.io crate ast2str 1.4.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate ast2str 1.4.1 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "generate-lockfile" "--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]      Locking 22 packages to latest compatible versions
[INFO] [stderr]       Adding pretty_assertions v0.7.2 (available: v1.4.1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ast2str-derive v0.4.1
[INFO] [stderr]   Downloaded ast2str-lib v1.3.0
[INFO] [stderr]   Downloaded pretty_assertions v0.7.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 528fbe3c403857d44fa2b944699b159dbf1aeb22434fce2ccbfc08d849a8a18e
[INFO] running `Command { std: "docker" "start" "-a" "528fbe3c403857d44fa2b944699b159dbf1aeb22434fce2ccbfc08d849a8a18e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "528fbe3c403857d44fa2b944699b159dbf1aeb22434fce2ccbfc08d849a8a18e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "528fbe3c403857d44fa2b944699b159dbf1aeb22434fce2ccbfc08d849a8a18e", kill_on_drop: false }`
[INFO] [stdout] 528fbe3c403857d44fa2b944699b159dbf1aeb22434fce2ccbfc08d849a8a18e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ff5855f0e00c9fc598574cfa30635a2e59fe4a592cff8268037fdb22fcf7e6f
[INFO] running `Command { std: "docker" "start" "-a" "0ff5855f0e00c9fc598574cfa30635a2e59fe4a592cff8268037fdb22fcf7e6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling ast2str-lib v1.3.0
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling ast2str-derive v0.4.1
[INFO] [stderr]    Compiling ast2str v1.4.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.30s
[INFO] running `Command { std: "docker" "inspect" "0ff5855f0e00c9fc598574cfa30635a2e59fe4a592cff8268037fdb22fcf7e6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ff5855f0e00c9fc598574cfa30635a2e59fe4a592cff8268037fdb22fcf7e6f", kill_on_drop: false }`
[INFO] [stdout] 0ff5855f0e00c9fc598574cfa30635a2e59fe4a592cff8268037fdb22fcf7e6f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 077f1a8271af3823049f801d34269020b85c02aea2bc7bb936bc5b158d69f1b9
[INFO] running `Command { std: "docker" "start" "-a" "077f1a8271af3823049f801d34269020b85c02aea2bc7bb936bc5b158d69f1b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling diff v0.1.13
[INFO] [stderr]    Compiling pretty_assertions v0.7.2
[INFO] [stderr]    Compiling ast2str v1.4.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: value assigned to `skip_me_always` is never read
[INFO] [stdout]   --> tests/ast.rs:99:9
[INFO] [stdout]    |
[INFO] [stdout] 99 |         skip_me_always: (),
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 1.60s
[INFO] running `Command { std: "docker" "inspect" "077f1a8271af3823049f801d34269020b85c02aea2bc7bb936bc5b158d69f1b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "077f1a8271af3823049f801d34269020b85c02aea2bc7bb936bc5b158d69f1b9", kill_on_drop: false }`
[INFO] [stdout] 077f1a8271af3823049f801d34269020b85c02aea2bc7bb936bc5b158d69f1b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 877737a262ab6ffd0c778fdd141a0142e7cb3dbaf78eb27a5102f2680b767755
[INFO] running `Command { std: "docker" "start" "-a" "877737a262ab6ffd0c778fdd141a0142e7cb3dbaf78eb27a5102f2680b767755", kill_on_drop: false }`
[INFO] [stderr] warning: value assigned to `skip_me_always` is never read
[INFO] [stderr]   --> tests/ast.rs:99:9
[INFO] [stderr]    |
[INFO] [stderr] 99 |         skip_me_always: (),
[INFO] [stderr]    |         ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `ast2str` (test "ast") generated 1 warning
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/ast2str-fbfe7afe368efdc3)
[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; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/ast.rs (/opt/rustwide/target/debug/deps/ast-8dd8f78c4ecf954d)
[INFO] [stderr]      Running tests/name_collisions.rs (/opt/rustwide/target/debug/deps/name_collisions-9f02ad00a5237230)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests ast2str
[INFO] [stdout] running 2 tests
[INFO] [stdout] test test_ast_to_str ... ok
[INFO] [stdout] test test_ast_to_str_with_custom_symbols ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test test_ast_to_str ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 9) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.46s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "877737a262ab6ffd0c778fdd141a0142e7cb3dbaf78eb27a5102f2680b767755", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "877737a262ab6ffd0c778fdd141a0142e7cb3dbaf78eb27a5102f2680b767755", kill_on_drop: false }`
[INFO] [stdout] 877737a262ab6ffd0c778fdd141a0142e7cb3dbaf78eb27a5102f2680b767755