[INFO] cloning repository https://github.com/ndmitchell/interpret
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ndmitchell/interpret" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fndmitchell%2Finterpret", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fndmitchell%2Finterpret'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 4d52500fc29f8d3e767ffe307c34b0e1611b03ed
[INFO] checking ndmitchell/interpret against try#163937523761cc0def32f1ba9ed63fdf65ad3478 for pr-156749
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fndmitchell%2Finterpret" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-0-tc2/source/rust-toolchain
[INFO] started tweaking git repo https://github.com/ndmitchell/interpret
[INFO] finished tweaking git repo https://github.com/ndmitchell/interpret
[INFO] tweaked toml for git repo https://github.com/ndmitchell/interpret written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ndmitchell/interpret on toolchain 163937523761cc0def32f1ba9ed63fdf65ad3478
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+163937523761cc0def32f1ba9ed63fdf65ad3478" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ndmitchell/interpret 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" "+163937523761cc0def32f1ba9ed63fdf65ad3478" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 48a5532edaef73c108035871e1ffa5b301f56ea6aefa5a6bfb07673c760a07f5
[INFO] running `Command { std: "docker" "start" "48a5532edaef73c108035871e1ffa5b301f56ea6aefa5a6bfb07673c760a07f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "48a5532edaef73c108035871e1ffa5b301f56ea6aefa5a6bfb07673c760a07f5" "/opt/rustwide/cargo-home/bin/cargo" "+163937523761cc0def32f1ba9ed63fdf65ad3478" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "48a5532edaef73c108035871e1ffa5b301f56ea6aefa5a6bfb07673c760a07f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "48a5532edaef73c108035871e1ffa5b301f56ea6aefa5a6bfb07673c760a07f5" "/opt/rustwide/cargo-home/bin/cargo" "+163937523761cc0def32f1ba9ed63fdf65ad3478" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling const_fn v0.4.4
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling rayon-core v1.9.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling cast v0.2.3
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]    Compiling crossbeam-utils v0.8.1
[INFO] [stderr]    Compiling memoffset v0.6.1
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking itoa v0.4.6
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]    Compiling rayon v1.5.0
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking crossbeam-epoch v0.9.1
[INFO] [stderr]     Checking crossbeam-channel v0.5.0
[INFO] [stderr]     Checking itertools v0.9.0
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]     Checking crossbeam-deque v0.8.0
[INFO] [stderr]     Checking half v1.6.0
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking walkdir v2.3.1
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking oorandom v11.1.3
[INFO] [stderr]     Checking plotters v0.2.15
[INFO] [stderr]     Checking criterion-plot v0.4.3
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking serde_cbor v0.11.1
[INFO] [stderr]     Checking csv v1.1.5
[INFO] [stderr]     Checking tinytemplate v1.1.0
[INFO] [stderr]     Checking criterion v0.3.3
[INFO] [stderr]     Checking interpret v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_patterns)]
[INFO] [stdout]   |            ^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in CURRENT_RUSTC_VERSION
[INFO] [stdout]   = note: superseded by `deref_patterns`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_patterns` have been removed
[INFO] [stdout]   --> src/alt/jump_register.rs:71:25
[INFO] [stdout]    |
[INFO] [stdout] 71 |         Expr::Assign(u, box Expr::Add(x, y)) => {
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_patterns` have been removed
[INFO] [stdout]   --> src/alt/jump_register_compact.rs:68:25
[INFO] [stdout]    |
[INFO] [stdout] 68 |         Expr::Assign(u, box Expr::Add(x, y)) => {
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_patterns` have been removed
[INFO] [stdout]   --> src/alt/jump_register_compact_loop.rs:74:25
[INFO] [stdout]    |
[INFO] [stdout] 74 |         Expr::Assign(u, box Expr::Add(x, y)) => {
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_patterns` have been removed
[INFO] [stdout]   --> src/alt/jump_register_loop.rs:68:25
[INFO] [stdout]    |
[INFO] [stdout] 68 |         Expr::Assign(u, box Expr::Add(x, y)) => {
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0557]: feature has been removed
[INFO] [stdout]  --> src/lib.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(box_patterns)]
[INFO] [stdout]   |            ^^^^^^^^^^^^ feature has been removed
[INFO] [stdout]   |
[INFO] [stdout]   = note: removed in CURRENT_RUSTC_VERSION
[INFO] [stdout]   = note: superseded by `deref_patterns`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_patterns` have been removed
[INFO] [stdout]   --> src/alt/jump_register.rs:71:25
[INFO] [stdout]    |
[INFO] [stdout] 71 |         Expr::Assign(u, box Expr::Add(x, y)) => {
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_patterns` have been removed
[INFO] [stdout]   --> src/alt/jump_register_compact.rs:68:25
[INFO] [stdout]    |
[INFO] [stdout] 68 |         Expr::Assign(u, box Expr::Add(x, y)) => {
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_patterns` have been removed
[INFO] [stdout]   --> src/alt/jump_register_compact_loop.rs:74:25
[INFO] [stdout]    |
[INFO] [stdout] 74 |         Expr::Assign(u, box Expr::Add(x, y)) => {
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: `box_patterns` have been removed
[INFO] [stdout]   --> src/alt/jump_register_loop.rs:68:25
[INFO] [stdout]    |
[INFO] [stdout] 68 |         Expr::Assign(u, box Expr::Add(x, y)) => {
[INFO] [stdout]    |                         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `y` in this scope
[INFO] [stdout]   --> src/alt/jump_register.rs:73:30
[INFO] [stdout]    |
[INFO] [stdout] 73 |             let y = compiler(y, codes, reg);
[INFO] [stdout]    |                              ^
[INFO] [stdout] 74 |             fn f<'a>(stack: Stack<'a, i64>, tape: Tape<'a, isize>) {
[INFO] [stdout]    |             ------------------------------------------------------ similarly named function `f` defined here
[INFO] [stdout]    |
[INFO] [stdout] help: a function with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 73 -             let y = compiler(y, codes, reg);
[INFO] [stdout] 73 +             let y = compiler(f, codes, reg);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `y` in this scope
[INFO] [stdout]   --> src/alt/jump_register_compact.rs:70:30
[INFO] [stdout]    |
[INFO] [stdout] 70 |             let y = compiler(y, codes, reg);
[INFO] [stdout]    |                              ^
[INFO] [stdout] 71 |             fn f<'a>(stack: Registers<'a, i64>, tape: Tape<'a, isize>) {
[INFO] [stdout]    |             ---------------------------------------------------------- similarly named function `f` defined here
[INFO] [stdout]    |
[INFO] [stdout] help: a function with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 70 -             let y = compiler(y, codes, reg);
[INFO] [stdout] 70 +             let y = compiler(f, codes, reg);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `y` in this scope
[INFO] [stdout]   --> src/alt/jump_register_compact_loop.rs:76:30
[INFO] [stdout]    |
[INFO] [stdout] 76 |             let y = compiler(y, codes, reg);
[INFO] [stdout]    |                              ^
[INFO] [stdout] 77 |             fn f<'a>(stack: Registers<'a, i64>, tape: Tape<'a, isize>) {
[INFO] [stdout]    |             ---------------------------------------------------------- similarly named function `f` defined here
[INFO] [stdout]    |
[INFO] [stdout] help: a function with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 76 -             let y = compiler(y, codes, reg);
[INFO] [stdout] 76 +             let y = compiler(f, codes, reg);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `y` in this scope
[INFO] [stdout]   --> src/alt/jump_register_loop.rs:70:30
[INFO] [stdout]    |
[INFO] [stdout] 70 |             let y = compiler(y, codes, reg);
[INFO] [stdout]    |                              ^
[INFO] [stdout] 71 |             fn f<'a>(stack: Registers<'a, i64>, tape: Tape<'a, isize>) {
[INFO] [stdout]    |             ---------------------------------------------------------- similarly named function `f` defined here
[INFO] [stdout]    |
[INFO] [stdout] help: a function with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 70 -             let y = compiler(y, codes, reg);
[INFO] [stdout] 70 +             let y = compiler(f, codes, reg);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `y` in this scope
[INFO] [stdout]   --> src/alt/jump_register.rs:73:30
[INFO] [stdout]    |
[INFO] [stdout] 73 |             let y = compiler(y, codes, reg);
[INFO] [stdout]    |                              ^
[INFO] [stdout] 74 |             fn f<'a>(stack: Stack<'a, i64>, tape: Tape<'a, isize>) {
[INFO] [stdout]    |             ------------------------------------------------------ similarly named function `f` defined here
[INFO] [stdout]    |
[INFO] [stdout] help: a function with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 73 -             let y = compiler(y, codes, reg);
[INFO] [stdout] 73 +             let y = compiler(f, codes, reg);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `y` in this scope
[INFO] [stdout]   --> src/alt/jump_register_compact.rs:70:30
[INFO] [stdout]    |
[INFO] [stdout] 70 |             let y = compiler(y, codes, reg);
[INFO] [stdout]    |                              ^
[INFO] [stdout] 71 |             fn f<'a>(stack: Registers<'a, i64>, tape: Tape<'a, isize>) {
[INFO] [stdout]    |             ---------------------------------------------------------- similarly named function `f` defined here
[INFO] [stdout]    |
[INFO] [stdout] help: a function with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 70 -             let y = compiler(y, codes, reg);
[INFO] [stdout] 70 +             let y = compiler(f, codes, reg);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `y` in this scope
[INFO] [stdout]   --> src/alt/jump_register_compact_loop.rs:76:30
[INFO] [stdout]    |
[INFO] [stdout] 76 |             let y = compiler(y, codes, reg);
[INFO] [stdout]    |                              ^
[INFO] [stdout] 77 |             fn f<'a>(stack: Registers<'a, i64>, tape: Tape<'a, isize>) {
[INFO] [stdout]    |             ---------------------------------------------------------- similarly named function `f` defined here
[INFO] [stdout]    |
[INFO] [stdout] help: a function with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 76 -             let y = compiler(y, codes, reg);
[INFO] [stdout] 76 +             let y = compiler(f, codes, reg);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `y` in this scope
[INFO] [stdout]   --> src/alt/jump_register_loop.rs:70:30
[INFO] [stdout]    |
[INFO] [stdout] 70 |             let y = compiler(y, codes, reg);
[INFO] [stdout]    |                              ^
[INFO] [stdout] 71 |             fn f<'a>(stack: Registers<'a, i64>, tape: Tape<'a, isize>) {
[INFO] [stdout]    |             ---------------------------------------------------------- similarly named function `f` defined here
[INFO] [stdout]    |
[INFO] [stdout] help: a function with a similar name exists
[INFO] [stdout]    |
[INFO] [stdout] 70 -             let y = compiler(y, codes, reg);
[INFO] [stdout] 70 +             let y = compiler(f, codes, reg);
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `interpret` (lib) due to 9 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] Some errors have detailed explanations: E0425, E0557.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `interpret` (lib test) due to 9 previous errors
[INFO] running `Command { std: "docker" "inspect" "48a5532edaef73c108035871e1ffa5b301f56ea6aefa5a6bfb07673c760a07f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "48a5532edaef73c108035871e1ffa5b301f56ea6aefa5a6bfb07673c760a07f5", kill_on_drop: false }`
[INFO] [stdout] 48a5532edaef73c108035871e1ffa5b301f56ea6aefa5a6bfb07673c760a07f5