[INFO] fetching crate shell-rs 0.2.6...
[INFO] testing shell-rs-0.2.6 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate shell-rs 0.2.6 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate shell-rs 0.2.6
[INFO] finished tweaking crates.io crate shell-rs 0.2.6
[INFO] tweaked toml for crates.io crate shell-rs 0.2.6 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate shell-rs 0.2.6 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate shell-rs 0.2.6 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 719140235b30d44a72de08ce09ca406f35b1bdad86c927d0c5395dbcc1eee481
[INFO] running `Command { std: "docker" "start" "-a" "719140235b30d44a72de08ce09ca406f35b1bdad86c927d0c5395dbcc1eee481", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "719140235b30d44a72de08ce09ca406f35b1bdad86c927d0c5395dbcc1eee481", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "719140235b30d44a72de08ce09ca406f35b1bdad86c927d0c5395dbcc1eee481", kill_on_drop: false }`
[INFO] [stdout] 719140235b30d44a72de08ce09ca406f35b1bdad86c927d0c5395dbcc1eee481
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5c1e0937a5eac0b07c3731609c733c66c9c2c799dd8a4ab3bce76b025432ef39
[INFO] running `Command { std: "docker" "start" "-a" "5c1e0937a5eac0b07c3731609c733c66c9c2c799dd8a4ab3bce76b025432ef39", kill_on_drop: false }`
[INFO] [stderr]    Compiling generic-array v0.14.5
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling constant_time_eq v0.1.5
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling md5 v0.7.0
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling blake2b_simd v1.0.0
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling nc v0.8.4
[INFO] [stderr]    Compiling crypto-common v0.1.5
[INFO] [stderr]    Compiling block-buffer v0.10.2
[INFO] [stderr]    Compiling digest v0.10.3
[INFO] [stderr]    Compiling sha1 v0.10.1
[INFO] [stderr]    Compiling sha2 v0.10.2
[INFO] [stderr]    Compiling shell-rs v0.2.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `name`, `uid`, `group_name`, `gid`, and `groups` are never read
[INFO] [stdout]   --> src/id.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Id {
[INFO] [stdout]    |            -- fields in this struct
[INFO] [stdout] 10 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 11 |     uid: nc::uid_t,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 12 |
[INFO] [stdout] 13 |     group_name: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 14 |     gid: nc::gid_t,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 15 |
[INFO] [stdout] 16 |     groups: Vec<(String, nc::gid_t)>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Id` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `do_rm` is never used
[INFO] [stdout]   --> src/rm.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn do_rm() {}
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.84s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: nc v0.8.4
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 4`
[INFO] running `Command { std: "docker" "inspect" "5c1e0937a5eac0b07c3731609c733c66c9c2c799dd8a4ab3bce76b025432ef39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c1e0937a5eac0b07c3731609c733c66c9c2c799dd8a4ab3bce76b025432ef39", kill_on_drop: false }`
[INFO] [stdout] 5c1e0937a5eac0b07c3731609c733c66c9c2c799dd8a4ab3bce76b025432ef39
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b57e44dfa64dc497172b6aee42cc38de33d6750e9e6e7912d9407533fa7be17b
[INFO] running `Command { std: "docker" "start" "-a" "b57e44dfa64dc497172b6aee42cc38de33d6750e9e6e7912d9407533fa7be17b", kill_on_drop: false }`
[INFO] [stderr]    Compiling shell-rs v0.2.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `name`, `uid`, `group_name`, `gid`, and `groups` are never read
[INFO] [stdout]   --> src/id.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Id {
[INFO] [stdout]    |            -- fields in this struct
[INFO] [stdout] 10 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 11 |     uid: nc::uid_t,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 12 |
[INFO] [stdout] 13 |     group_name: String,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 14 |     gid: nc::gid_t,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 15 |
[INFO] [stdout] 16 |     groups: Vec<(String, nc::gid_t)>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Id` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `do_rm` is never used
[INFO] [stdout]   --> src/rm.rs:68:4
[INFO] [stdout]    |
[INFO] [stdout] 68 | fn do_rm() {}
[INFO] [stdout]    |    ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0133]: call to unsafe function `getpid` is unsafe and requires unsafe function or block
[INFO] [stdout]   --> src/renice.rs:49:26
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let ret = renice(nc::getpid(), 1, IdType::Pid);
[INFO] [stdout]    |                          ^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]    |
[INFO] [stdout]    = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0133]: call to unsafe function `nc::unlink` is unsafe and requires unsafe function or block
[INFO] [stdout]    --> src/truncate.rs:235:17
[INFO] [stdout]     |
[INFO] [stdout] 235 |         let _ = nc::unlink(file);
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^ call to unsafe function
[INFO] [stdout]     |
[INFO] [stdout]     = note: consult the function's documentation for information on how to avoid undefined behavior
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0133`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `shell-rs` (lib test) due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "b57e44dfa64dc497172b6aee42cc38de33d6750e9e6e7912d9407533fa7be17b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b57e44dfa64dc497172b6aee42cc38de33d6750e9e6e7912d9407533fa7be17b", kill_on_drop: false }`
[INFO] [stdout] b57e44dfa64dc497172b6aee42cc38de33d6750e9e6e7912d9407533fa7be17b